How Polyol Selection Affects PU Performance
Language: English
ID: KH0014
Time Length: ~ 90 Min.
Description: Polyols are the largest volume raw material used in polyurethanes. Cost and Performance are the two biggest factors for determining the best polyol for a specific polyurethane application. The polyol’s reactivity, based on the position of the OH groups, the ester or ether chemistry, the linearity, and the aromatic vs. aliphatic chemistry all play a part in defining PU properties and performance for a particular polyurethane application. This webinar is designed to provide the polyurethane formulator with a fundamental understanding of how these factors should be considered when formulating polyurethanes from a Structure/Property perspective. The webinar content includes: # Discussions of molecular architecture # Polyol types and their molecular structure : Polyether polyols, Polyester Polyols, Specialty polyols # Advantages and Disadvantages of polyol types # Morphology and molecular motion # Hydrogen bonding within polyurethanes # Discussion of specific polyurethane examples and the measurement of their physical properties
Expert: Joseph Marcinko, Ph.D. Principal Scientist and President of Polymer Synergies LLC. Dr. Marcinko has over 35 years of industrial R&D, research management, and academic experience. His interests and expertise are in the areas of polyurethane chemistry, bio-polymers, adhesion science, wood composites, polymer characterization, solid-state NMR spectroscopy, and polymer structure-property relationships. He is an adjunct professor and a developer of industrial short courses related to polyurethane and polymer chemistry, adhesion science and industrial problem solving. Dr. Marcinko has authored over 50 peer reviewed publications, and has 17 patents and 2 patents pending. Educational Summary: Ph.D. - Chemistry, The University of Akron, Akron, OH, 1992; M.S. - Chemistry, Case Western Reserve University, Cleveland, OH, 1990; B.S. - Chemistry; B.S. - Biology, King's College, Wilkes-Barre, PA, 1983
Processing High Resilient Flexible PU Foams
Language: English
ID: KH0015
Time Length: ~ 110 Min.
Keyword: Flexible Polyurethanes
Description: HR foams have been around for many years , they were however mostly limited for use in high end furniture . This has changed and they are now being increasingly used in foam mattresses as a comfort layer. This webinar will give you an insight on producing it on low pressure continuous foaming machines as well as block foaming machine. It covers an introduction to high resilient foams. The advantages of HR foams as opposed to conventional foams. Chemical packages to manufacture HR foams, Polyols and additives. Machine requirements for manufacturing HR foams. Processing HR foams including machine setup, trough size and fallplate settings. How to adjust the properties of HR foam. Postproduction procedures and curing.
Expert: Mr. M. A Naqi is Principal consultant and President of LinQ Tech Inc. based in Canada. A graduate in Science I started my career as ‘Production Manager ‘on a continuous Foaming machine at Poly Products LLC (Oman) between 1980 -2001 while directing the company from infancy to market leader in special foams, eventually became CTO in the company. During this period added a molded foam line as well as a rebonded foam line. I have developed formulations for all kinds of special foams, including soft and super soft grades with standard polyol, a unique pre-polymer dispensing system for rebonded foam which preludes cleaning of the pump and pouring tube. Started my own consultation company in 2001 assisting producers in Canada, Middle East and Asia, teaching foam production, adjusting formulations and talking at various shows and been involved in the industry for over 35 years.
Wood Adhesion: Isocyanate and Polyurethane Adhesives
Language: English
ID: KH0016
Time Length: ~ 90 Min.
Description: Wood and other lignocellulosic composites are growing in use and the adhesives used in these composites plays a major part in how these composites perform in terms of mechanical and wet exposure properties. The largest wood composites markets are for panel products like Oriented Strand Board (OSB), Plywood, Particleboard (PB) and Medium and High-Density fiberboards (MDF and HDF). Another growing area that requires high performance adhesives is Cross Laminated Timber (CLT) which is a large-scale, prefabricated, solid engineered wood panel used in building construction. This webinar will discuss the complex nature of wood adhesion and explore the use of isocyanate and polyurethane adhesives as high performance adhesives for wood composites. The mechanism of how isocyanate and polyurethane adhesives work will be discussed along with important factors to consider when using these adhesives to make wood and lignocellulosic composites. The presentation topics include: An introduction to adhesive considerations, The unique nature of wood as a bonding surface, The chemistry of isocyanates and polyurethanes, Mechanism of isocyanate and polyurethane adhesion, Summary of important concepts, Questions and discussionss
Expert: Joseph Marcinko, Ph.D. Principal Scientist and President of Polymer Synergies LLC. Dr. Marcinko has over 35 years of industrial R&D, research management, and academic experience. His interests and expertise are in the areas of polyurethane chemistry, bio-polymers, adhesion science, wood composites, polymer characterization, solid-state NMR spectroscopy, and polymer structure-property relationships. He is an adjunct professor and a developer of industrial short courses related to polyurethane and polymer chemistry, adhesion science and industrial problem solving. Dr. Marcinko has authored over 50 peer reviewed publications, and has 17 patents and 2 patents pending. Educational Summary: Ph.D. - Chemistry, The University of Akron, Akron, OH, 1992; M.S. - Chemistry, Case Western Reserve University, Cleveland, OH, 1990; B.S. - Chemistry; B.S. - Biology, King's College, Wilkes-Barre, PA, 1983
Rigid Polyurethanes Chemistry and Technologies
Language: English
ID: KH0017
Time Length: ~ 90 Min.
Keyword: Chemsitry, Insultation, Rigid Polyurethanes
Description: Rigid polyurethanes account for over a quarter of total global output of polyurethane industry. These materials can be used in endless applications, the number of which is still growing in many new and sometimes unexpected areas. The webinar aims to highlight business opportunities offered by the products and technical background which will help taking advantage of these opportunities. The webinar will provide a good overview of: Types of rigid polyurethanes and their applications, rigid polyurethanes chemistry theory, raw materials used in rigid polyurethanes, formulating of rigid polyurethanes, manufacturing methods used in make different products from rigid polyurethanes.
Expert: Dr. Grazyna Mitchener, is the director and principal consultant in Polychemtech Ltd. – a technical and business consultancy specializing in innovative polyurethane technologies and other high performance polymeric products. From 1996 to 2008 she worked for Celotex in UK, developing first in Europe zero-ODP PIR rigid thermal insulation products. For the first ten years of her career she was an academic researcher and lecturer and worked on polymers with high heat and fire resistance. She gained her Ph.D. in Polymer Chemistry and Technology in 1992. She is the author of 8 patents and over 60 scientific papers, conference presentations and training workshops. For her contribution to the thermal insulation industry she was presented with the “Global Insulation Personality of 2014” award.
Polyisocyanurate (PIR) Chemistry and Technology
Language: English
ID: KH0018
Time Length: ~ 90 Min.
Keyword: Chemsitry, Insultation, Rigid Polyurethanes
Description: Polyisocyanurate foams (PIR) are polyurethane products with exceptional properties. They have excellent fire resistance, superb thermal insulation capability for protection from cold or heat and very good mechanical strength, despite being extremely light. Their mass production is quick and economical. All these make them the best building materials (but not only) in applications where fire safety of people and reduction of energy usage matters. The webinar will present: Properties and main applications of PIR products, basic polyisocyanurate chemistry theory, specifics of PIR formulations and raw materials choices in comparison to standard polyurethane (PUR) technologies, manufacturing equipment for PIR production.
Expert: Dr. Grazyna Mitchener, is the director and principal consultant in Polychemtech Ltd. – a technical and business consultancy specializing in innovative polyurethane technologies and other high performance polymeric products. From 1996 to 2008 she worked for Celotex in UK, developing first in Europe zero-ODP PIR rigid thermal insulation products. For the first ten years of her career she was an academic researcher and lecturer and worked on polymers with high heat and fire resistance. She gained her Ph.D. in Polymer Chemistry and Technology in 1992. She is the author of 8 patents and over 60 scientific papers, conference presentations and training workshops. For her contribution to the thermal insulation industry she was presented with the “Global Insulation Personality of 2014” award.
Rigid Polyurethanes with Improved Fire Resistance
Language: English
ID: KH0019
Time Length: ~ 90 Min.
Keyword: Chemsitry, Insultation, Rigid Polyurethanes
Description: In the wake of sobering statistics on human life losses in fires, the issue of fire resistance of building materials is getting more important and global. Customers demand product which are good but first of all safe. Rigid polyurethanes have a lot of applications in buildings and factories and their fire resistance has become one of the first criteria taken into consideration when deciding on choosing and purchasing the products. The webinar will talk about: the nature of fire and how theoretically it can be prevented; principles of developing PU formulations and designing PU products with enhanced fire resistance; additives improving fire resistance of PURs: their types, properties and main applications
Expert: Dr. Grazyna Mitchener, is the director and principal consultant in Polychemtech Ltd. – a technical and business consultancy specializing in innovative polyurethane technologies and other high performance polymeric products. From 1996 to 2008 she worked for Celotex in UK, developing first in Europe zero-ODP PIR rigid thermal insulation products. For the first ten years of her career she was an academic researcher and lecturer and worked on polymers with high heat and fire resistance. She gained her Ph.D. in Polymer Chemistry and Technology in 1992. She is the author of 8 patents and over 60 scientific papers, conference presentations and training workshops. For her contribution to the thermal insulation industry she was presented with the “Global Insulation Personality of 2014” award.
Differential Scanning Calorimetry (DSC): Applications & Relationships in Polymer Processing
Language: English
ID: KH0023
Time Length: ~ 60 Min.
Description: This Knowhow Webinar is designed to help the polymer scientist understand how Differential Scanning Calorimetry (DSC) can be used to characterize polymeric materials from a formulation, processing and problem solving perspective. discussions about important experimental considerations will be presented. in addition, discussions about DSC kinetics, the nature of transitions observed by DSC, and the influence of thermal history will be discussed. the presentation contents include: fundamentals of DSC instrumentation, experimental considerations, kinetic studies using DSC, industrial problem-solving case studies etc.
Expert: Joseph Marcinko, Ph.D. Principal Scientist and President of Polymer Synergies LLC. Dr. Marcinko has over 35 years of industrial R&D, research management, and academic experience. His interests and expertise are in the areas of polyurethane chemistry, bio-polymers, adhesion science, wood composites, polymer characterization, solid-state NMR spectroscopy, and polymer structure-property relationships. He is an adjunct professor and a developer of industrial short courses related to polyurethane and polymer chemistry, adhesion science and industrial problem solving. Dr. Marcinko has authored over 50 peer reviewed publications, and has 17 patents and 2 patents pending. Educational Summary: Ph.D. - Chemistry, The University of Akron, Akron, OH, 1992; M.S. - Chemistry, Case Western Reserve University, Cleveland, OH, 1990; B.S. - Chemistry; B.S. - Biology, King's College, Wilkes-Barre, PA, 1983
Dynamic Mechanical Analysis (DMA): Applications & Relationships in Polymer Processing
Language: English
ID: KH0028
Time Length: ~ 60 Min.
Description: This KnowHow Webinar is designed to help the polymer scientist understand how Dynamic Mechanical Analysis (DMA) can be a powerful tool for characterizing polymeric materials and polymer composits from a physical property and problem solving perspective. Discussions about important experimental considerations will be presented. In addition, discussions about viscoelasticity, the nature of transitions observed by DMA, and the influence of thermal history will be discussed. The presentation contents include: Fundamentals of DMA Instrumentation, Experimental Considerations, Understanding Viscoelasticity, Industrial Problem-Solving Case Studies
Expert: Joseph Marcinko, Ph.D. Principal Scientist and President of Polymer Synergies LLC. Dr. Marcinko has over 35 years of industrial R&D, research management, and academic experience. His interests and expertise are in the areas of polyurethane chemistry, bio-polymers, adhesion science, wood composites, polymer characterization, solid-state NMR spectroscopy, and polymer structure-property relationships. He is an adjunct professor and a developer of industrial short courses related to polyurethane and polymer chemistry, adhesion science and industrial problem solving. Dr. Marcinko has authored over 50 peer reviewed publications, and has 17 patents and 2 patents pending. Educational Summary: Ph.D. - Chemistry, The University of Akron, Akron, OH, 1992; M.S. - Chemistry, Case Western Reserve University, Cleveland, OH, 1990; B.S. - Chemistry; B.S. - Biology, King's College, Wilkes-Barre, PA, 1983
Solid State Nuclear Magnetic Resonance Spectroscopy (SSNMR): Applications & Relationships in Polymer Processing
Language: English
ID: KH0030
Time Length: ~ 60 Min.
Description: This KnowHow Webinar is designed to introduce the industrial scientist to the spectroscopic technique of Solid-State NMR (SSNMR) and how it can be applied to polymer and material characterization and product development. Experimental considerations will be discussed along with how structural and molecular dynamic information obtained by SSNMR can be used to develop Structure/Property relationships. The presentation contents include: Basic Concepts of NMR and SSNMR, Experimental Considerations, Molecular Dynamics and Morphology, Case Studies of SSNMR used in Problem Solving and Product Development
Expert: Joseph Marcinko, Ph.D. Principal Scientist and President of Polymer Synergies LLC. Dr. Marcinko has over 35 years of industrial R&D, research management, and academic experience. His interests and expertise are in the areas of polyurethane chemistry, bio-polymers, adhesion science, wood composites, polymer characterization, solid-state NMR spectroscopy, and polymer structure-property relationships. He is an adjunct professor and a developer of industrial short courses related to polyurethane and polymer chemistry, adhesion science and industrial problem solving. Dr. Marcinko has authored over 50 peer reviewed publications, and has 17 patents and 2 patents pending. Educational Summary: Ph.D. - Chemistry, The University of Akron, Akron, OH, 1992; M.S. - Chemistry, Case Western Reserve University, Cleveland, OH, 1990; B.S. - Chemistry; B.S. - Biology, King's College, Wilkes-Barre, PA, 1983
Thermal Analysis of Polymers
Language: English
ID: KH0043
Time Length: ~90 Min
Description: This webinar is designed to help the polymer scientist characterize polymeric materials using a variety of Thermal Analytical (TA) techniques like Differential Scanning Calorimetry (DSC), Thermal Mechanical Analysis (TMA) Thermogravimetric Analysis (TGA, and Dynamic Mechanical Analysis (DMA). Discussions about important experimental considerations for each technique will be presented. In addition, discussions about choosing the correct technique to solve a specific product development or processing problem will be presented via specific TA examples. We will also discuss thermal transitions for amorphous and crystalline polymers and how thermal history influence interpretation of TA data. The presentation agenda is as below: # Thermal Analysis Instrumentation # Experimental Considerations # Thinking Beyond Standard Analysis # Industrial Problem-Solving Case Studies
Expert: Joseph Marcinko, Ph.D. Principal Scientist and President of Polymer Synergies LLC. Dr. Marcinko has over 35 years of industrial R&D, research management, and academic experience. His interests and expertise are in the areas of polyurethane chemistry, bio-polymers, adhesion science, wood composites, polymer characterization, solid-state NMR spectroscopy, and polymer structure-property relationships. He is an adjunct professor and a developer of industrial short courses related to polyurethane and polymer chemistry, adhesion science and industrial problem solving. Dr. Marcinko has authored over 50 peer reviewed publications, and has 17 patents and 2 patents pending. Educational Summary: Ph.D. - Chemistry, The University of Akron, Akron, OH, 1992; M.S. - Chemistry, Case Western Reserve University, Cleveland, OH, 1990; B.S. - Chemistry; B.S. - Biology, King's College, Wilkes-Barre, PA, 1983
Moisture Cured, One Component, Reactive Polyurethane Adhesives
Language: English
ID: KH0046
Time Length: ~90 Min
Description: Moisture cured, one component, reactive polyurethane (PU) adhesives are formulated using an isocyanate and amorphous and crystalline polyols of varying composition which are reacted to form a polyurethane prepolymers. These prepolymers can be liquid or they can be solid at room temperature. If they are solid at room temperature, they are considered reactive hot melt adhesives. All reactive PU adhesives contain residual isocyanate functionality that is reactive with moisture that comes from the atmosphere and/or the surface to be bonded. Reactive PU adhesives contain catalysts to promote the moisture cure and also contain other additives to control rheology, open time and strength of the resulting polyurethane polymer. The choice of polyols, based on performance requirements is an important factor in formulating any polyurethane system. Designing reactive, one component adhesives is no different. Understanding how isocyanate and polyol structure affect reactivity and the physical properties of the formulated adhesive is an important aspect of formulation, which this webinar is intended to provide. The presentation includes: An introduction to adhesive considerations, Comparison of PUR adhesive systems, the chemistry of isocyanates and polyols, Formulating from a Structure / Property perspective, Summary of important concepts
Expert: Joseph Marcinko, Ph.D. Principal Scientist and President of Polymer Synergies LLC. Dr. Marcinko has over 35 years of industrial R&D, research management, and academic experience. His interests and expertise are in the areas of polyurethane chemistry, bio-polymers, adhesion science, wood composites, polymer characterization, solid-state NMR spectroscopy, and polymer structure-property relationships. He is an adjunct professor and a developer of industrial short courses related to polyurethane and polymer chemistry, adhesion science and industrial problem solving. Dr. Marcinko has authored over 50 peer reviewed publications, and has 17 patents and 2 patents pending. Educational Summary: Ph.D. - Chemistry, The University of Akron, Akron, OH, 1992; M.S. - Chemistry, Case Western Reserve University, Cleveland, OH, 1990; B.S. - Chemistry; B.S. - Biology, King's College, Wilkes-Barre, PA, 1983
Troubleshooting Problems with Flexible PU Foams Manufacturing
Language: English
ID: KH0047
Time Length: ~105 Min
Keyword: Flexible Polyurethanes
Description: Everyone new to the industry or even experienced foamers come across problems sometime or the other while producing flexible PU foam. This webinar explores problems while producing on low pressure continuous foaming machines. Advise on wide ranging fault finding and diagnosing problems with flexible PU foam manufacturing. Covers chemical problems, machine issues , mechanical faults and processing problems concerning formulation issues. Common faults associated with incorrect equipment installations, metering pump, piping and other issues.
Expert: Mr. M. A Naqi is Principal consultant and President of LinQ Tech Inc. based in Canada. A graduate in Science I started my career as ‘Production Manager ‘on a continuous Foaming machine at Poly Products LLC (Oman) between 1980 -2001 while directing the company from infancy to market leader in special foams, eventually became CTO in the company. During this period added a molded foam line as well as a rebonded foam line. I have developed formulations for all kinds of special foams, including soft and super soft grades with standard polyol, a unique pre-polymer dispensing system for rebonded foam which preludes cleaning of the pump and pouring tube. Started my own consultation company in 2001 assisting producers in Canada, Middle East and Asia, teaching foam production, adjusting formulations and talking at various shows and been involved in the industry for over 35 years.
Polyurethane Thermal Insulation
Language: English
ID: KH0049
Time Length: ~90 Min
Keyword: Chemsitry, Insultation, Rigid Polyurethanes
Description: Due to global warming endangering our planet and growing cost of energy, the thermal insulation materials are gaining more and more importance. Polyurethane foams are one of the best commodity thermal insulation materials and most optimum choice for majority of applications, where heat or cold transfer needs to be significantly reduced. Global production of polyurethane thermal insulation products has been and will be steadily growing. To provide most useful information on specifics of these products, in the webinar we will be talking about: General theory of the heat transfer process; different thermal insulation polyurethane products, their advantages and disadvantages; methods to improve thermal insulation properties of polyurethane materials by optimising their formulations; means to improve thermal insulation capabilities of polyurethane products by applying specific principles to the products’ designing and manufacturing.
Expert: Dr. Grazyna Mitchener, is the director and principal consultant in Polychemtech Ltd. – a technical and business consultancy specializing in innovative polyurethane technologies and other high performance polymeric products. From 1996 to 2008 she worked for Celotex in UK, developing first in Europe zero-ODP PIR rigid thermal insulation products. For the first ten years of her career she was an academic researcher and lecturer and worked on polymers with high heat and fire resistance. She gained her Ph.D. in Polymer Chemistry and Technology in 1992. She is the author of 8 patents and over 60 scientific papers, conference presentations and training workshops. For her contribution to the thermal insulation industry she was presented with the “Global Insulation Personality of 2014” award.
Molded Flexible PU Foam: Process Review
Language: English
ID: KH0508
Time Length: ~50 Min
Keyword: Flexible Polyurethanes
Description:
Expert: Mr. M. A Naqi is Principal consultant and President of LinQ Tech Inc. based in Canada. A graduate in Science I started my career as ‘Production Manager ‘on a continuous Foaming machine at Poly Products LLC (Oman) between 1980 -2001 while directing the company from infancy to market leader in special foams, eventually became CTO in the company. During this period added a molded foam line as well as a rebonded foam line. I have developed formulations for all kinds of special foams, including soft and super soft grades with standard polyol, a unique pre-polymer dispensing system for rebonded foam which preludes cleaning of the pump and pouring tube. Started my own consultation company in 2001 assisting producers in Canada, Middle East and Asia, teaching foam production, adjusting formulations and talking at various shows and been involved in the industry for over 35 years.
Applications of FTIR in Polymer Process Development
Language: English
ID: KH0136
Time Length: ~60 Min
Description: FTIR spectroscopy is a powerful technique for studying the effects of polymer formulation and process factors on surface chemistry, component compatibility, and morphology; all of which relate to end-use performance characteristics like adhesion and mechanical properties. Of the many techniques available, surface attenuated total reflectance spectroscopy (SATR-FTIR) is arguably one of the most versatile FTIR methods, enabling the study of neat liquids, solutions, dispersions, solid films, solid powders, adhesives, adherends, and countless other multi-component systems. Aside from being fast, SATR can be applied in problem-solving situations pertaining to cure reactions (liquid and dispersion states), surface compositions & adhesion, process history & surface heterogeneity (e.g., extruded films), material structure, and product/process control. This seminar, although focused on SATR, will be the first in a series pertaining to applications of spectroscopic methods in product and process development. Those attending can expect to learn how SATR-FTIR can be applied to their own real-world product development & problem-solving situations. The webinar presentation includes: • Overview of FTIR spectroscopy & methods; • Description of the SATR technique; • Example Applications - Adhesion, Surface migration, Extruded film heterogeneity, Polymerization reactions, Material structure & composition
Expert: Anthony Parker, Ph.D. is a Principal Scientist and founder of A. A. Parker Consulting, LLC. Dr. Parker has 35 years of industrial experience in research, development, and management. He has been involved in multiple start-up businesses ranging from medical devices and musical instrument strings to packaging adhesives, pharmaceutical delivery systems, and cosmetics. His interests and expertise are in the areas of surface chemistry and adhesion, bio-based materials and adhesives, mechanical properties of polymers, structure-property-process relationships in polymers, thermal analytical methods, spectroscopic methods (NMR, FTIR), UV curable coatings, and musical strings/ instruments. Dr. Parker has authored or co-authored more than 70 publications, including 30+ journal articles and technical reviews as well as 40+ patents with several patents pending.
Polyester Polyols for Rigid Polyurethane Foams
Language: English
ID: KH0137
Time Length: ~60 Min
Keyword: Chemsitry, Insultation, Rigid Polyurethanes
Description: Polyester polyols have several advantages over polyether polyols. They make polyurethane foams with better strength and fire resistance. They are also easier and cheaper to manufacture and manufacturing plants require relatively low investment. All these properties make the polyester polyols the first choice for rigid polyurethane formulations. The webinar will present: • The general chemical structure of polyesters polyols • Their advantages and disadvantages versus polyethers • The types of the polyols and their properties • Raw materials for production of the polyols • Additives improving properties of the polyester based foams • Main principles of polyols manufacturing • Basic setup of a plant for polyester manufacturing
Expert: Dr. Grazyna Mitchener, is the director and principal consultant in Polychemtech Ltd. – a technical and business consultancy specializing in innovative polyurethane technologies and other high performance polymeric products. From 1996 to 2008 she worked for Celotex in UK, developing first in Europe zero-ODP PIR rigid thermal insulation products. For the first ten years of her career she was an academic researcher and lecturer and worked on polymers with high heat and fire resistance. She gained her Ph.D. in Polymer Chemistry and Technology in 1992. She is the author of 8 patents and over 60 scientific papers, conference presentations and training workshops. For her contribution to the thermal insulation industry she was presented with the “Global Insulation Personality of 2014” award.
Novel Applications of Polyurethanes
Language: English
ID: KH0138
Time Length: ~60 Min
Keyword: Chemsitry, Insultation, Rigid Polyurethanes
Description: Polyurethane chemistry is certainly more complex than of any other plastic material, however this fact also presents endless opportunities to create materials with extraordinary properties and for very surprising applications. Polyurethanes can be very soft and bulletproof hard, very heavy and feather-light, solid and foamed, rigid and elastic. The sky is the limit. This webinar will give you a glance of what is possible to achieve with this humble and pretty easily manufactured materials
Expert: Dr. Grazyna Mitchener, is the director and principal consultant in Polychemtech Ltd. – a technical and business consultancy specializing in innovative polyurethane technologies and other high performance polymeric products. From 1996 to 2008 she worked for Celotex in UK, developing first in Europe zero-ODP PIR rigid thermal insulation products. For the first ten years of her career she was an academic researcher and lecturer and worked on polymers with high heat and fire resistance. She gained her Ph.D. in Polymer Chemistry and Technology in 1992. She is the author of 8 patents and over 60 scientific papers, conference presentations and training workshops. For her contribution to the thermal insulation industry she was presented with the “Global Insulation Personality of 2014” award.
Advanced Thermal Characterization of Polymeric Materials
Language: English
ID: KH0537
Time Length: ~60 Min
Description: Thermal characterization of materials by using the DSC, TGA, and SDT are important techniques that are used by a wide variety of industries, including polymers, composites, pharmaceuticals, foods, petroleum, inorganic and organic chemicals, and many others. These instruments typically measure heat flow, specific heat capacity, weight loss, as a function of temperature and time. Properties characterized include melting, crystallization, glass transitions, cross-linking, oxidation, decomposition, and volatilization. These experiments allow the user to examine end-use performance, composition, processing, stability, and molecular structure, and mobility of the materials. Advanced thermal characterization techniques such as the Modulated DSC (MDSC), High-resolution TGA (Hi-Res), Modulated TGA, etc. are suitable for high sensitivity R&D as well as that are helpful to understand better the complex material behaviors, which is sometimes quite difficult to measure using the conventional techniques. The KnowHow Webinar will highlight those advanced characterization techniques along with their application examples related to polymeric materials such as plastics, composites, rubber, etc.
Expert: Dr. Raj Ganesh J. has more than 15 years of experience in the field of polymeric materials characterization techniques and their processing techniques. His major expertise is in the study of structure-property relation of polymeric materials, processing relevant material characterization, material property correlation with the processing behaviours, processing related modelling & simulation techniques. As a qualified Application Expert, he has been providing technical support to various industrial customers from plastics, composites, rubber, and adhesive-related industries in the field of thermal, rheology, and thermophysical property measurements and supporting to resolving the processing related issue by the appropriate material testing solutions. He has conducted several applications-focused technical workshops at various locations in India as well as south-east Asia and, he has participated in various international conferences as a speaker. He has obtained his Master of Science (MS) in Polymer Engineering and Science and Ph.D. in Polymer Processing from the Montanuniversität Leoben (University of Leoben), Austria, Europe. Presently, he is working with TA Instruments, A Division of Waters LLC in India as an Applications Support Manager for the last 9 years. Education Summary: Ph.D. – Polymer Engineering & Science, Chair of Polymer Processing, Montanuniversität Leoben (University of Leoben), Austria; M.S. – Polymer Engineering & Science, Montanuniversität Leoben (University of Leben), Austria
Rigid Polyurethanes : Science & Technology (MasterClass)
Language: English
MasterClass
ID: KH0465
Time Length: ~360 Min
Keyword: Rigid Polyurethanes, Chemsitry, Insultation
Description: # Applications of rigid polyurethanes
# Types of rigid polyurethanes
# Rigid polyurethanes chemistry theory
# Raw materials
# Formulation principles
# Processing methods
# Testing procedures
# Recycling of rigid polyurethanes
Expert: Dr. Grazyna Mitchener, is the director and principal consultant in Polychemtech Ltd. – a technical and business consultancy specializing in innovative polyurethane technologies and other high performance polymeric products. From 1996 to 2008 she worked for Celotex in UK, developing first in Europe zero-ODP PIR rigid thermal insulation products. For the first ten years of her career she was an academic researcher and lecturer and worked on polymers with high heat and fire resistance. She gained her Ph.D. in Polymer Chemistry and Technology in 1992. She is the author of 8 patents and over 60 scientific papers, conference presentations and training workshops. For her contribution to the thermal insulation industry she was presented with the “Global Insulation Personality of 2014” award.
Structure/Property Relationships in Polyurethanes
Language: English
ID: KH0344
Time Length: ~60 Min
Description: There is no polyurethane monomer leading to polyurethane polymers. This is in contrast to a polymer like polyethylene which is derived from the polymerization of ethylene monomer and results in a homopolymer of linear or branched structure. Polyurethane polymers result from the addition reactions of isocyanate molecules of different types reacting with active hydrogen functional molecules or polymers that result in phase separated, block copolymers. The size, the shape and the intermolecular interactions of the isocyanates and the polyols used to make polyurethanes affects how phase separated segments will order themselves and how they will move in relation to each other, which will dictate the physical properties of that polyurethane polymer. This webinar is designed to provide an overview of how the selection of isocyanate structure and reactivity, combined with the proper selection of polyols, allows the polyurethane formulator to design and tailor the physical properties of polyurethanes for specific applications.
Expert: Joseph Marcinko, Ph.D. Principal Scientist and President of Polymer Synergies LLC. Dr. Marcinko has over 35 years of industrial R&D, research management, and academic experience. His interests and expertise are in the areas of polyurethane chemistry, bio-polymers, adhesion science, wood composites, polymer characterization, solid-state NMR spectroscopy, and polymer structure-property relationships. He is an adjunct professor and a developer of industrial short courses related to polyurethane and polymer chemistry, adhesion science and industrial problem solving. Dr. Marcinko has authored over 50 peer reviewed publications, and has 17 patents and 2 patents pending. Educational Summary: Ph.D. - Chemistry, The University of Akron, Akron, OH, 1992; M.S. - Chemistry, Case Western Reserve University, Cleveland, OH, 1990; B.S. - Chemistry; B.S. - Biology, King's College, Wilkes-Barre, PA, 1983
Isocyanates and How They are Made
Language: English
ID: KH0345
Time Length: ~30 Min
Description: Isocyanates are a family of relatively low molecular weight, reactive chemicals used in the making of polyurethanes. They are primarily derived from amine molecules which are phosgenated to convert the amine into an isocyanate group. Other non-phosgene methods of making isocyanates are an area of active research. This webinar will discuss the raw materials and chemical process used to make the most common isocyanates used in polyurethanes.
Expert: Joseph Marcinko, Ph.D. Principal Scientist and President of Polymer Synergies LLC. Dr. Marcinko has over 35 years of industrial R&D, research management, and academic experience. His interests and expertise are in the areas of polyurethane chemistry, bio-polymers, adhesion science, wood composites, polymer characterization, solid-state NMR spectroscopy, and polymer structure-property relationships. He is an adjunct professor and a developer of industrial short courses related to polyurethane and polymer chemistry, adhesion science and industrial problem solving. Dr. Marcinko has authored over 50 peer reviewed publications, and has 17 patents and 2 patents pending. Educational Summary: Ph.D. - Chemistry, The University of Akron, Akron, OH, 1992; M.S. - Chemistry, Case Western Reserve University, Cleveland, OH, 1990; B.S. - Chemistry; B.S. - Biology, King's College, Wilkes-Barre, PA, 1983
Polyurethane Adhesives, Sealants and Binders
Language: English
ID: KH0346
Time Length: ~60 Min
Description: Polyurethane (PU) adhesives, sealants and binders are used in a variety of structural and non-structural applications. The wide use of PU adhesives, sealants and binders results from the multitude of formulating options available which allow polyurethanes to be tailored to have specific performance for specific applications. Understanding the difference between adhesives, sealants and binders is one aspect of this webinar. In addition, understanding how isocyanate and polyol structure affect reactivity and the physical properties of the formulated PU adhesives, sealants and binders is an important aspect of formulation, which this webinar is intended to provide.
Expert: Joseph Marcinko, Ph.D. Principal Scientist and President of Polymer Synergies LLC. Dr. Marcinko has over 35 years of industrial R&D, research management, and academic experience. His interests and expertise are in the areas of polyurethane chemistry, bio-polymers, adhesion science, wood composites, polymer characterization, solid-state NMR spectroscopy, and polymer structure-property relationships. He is an adjunct professor and a developer of industrial short courses related to polyurethane and polymer chemistry, adhesion science and industrial problem solving. Dr. Marcinko has authored over 50 peer reviewed publications, and has 17 patents and 2 patents pending. Educational Summary: Ph.D. - Chemistry, The University of Akron, Akron, OH, 1992; M.S. - Chemistry, Case Western Reserve University, Cleveland, OH, 1990; B.S. - Chemistry; B.S. - Biology, King's College, Wilkes-Barre, PA, 1983
Understanding the Viscoelasticity of Polyurethanes
Language: English
ID: KH0347
Time Length: ~40 Min
Description: Viscoelasticity is a term used to describe materials that exhibit both viscous flow and elastic spring back when a force is applied to them. Viscous flow is a time dependent phenomenon, and an elastic response is instantaneous after a stress has been removed from a material. Viscoelastic materials exhibit both of these properties. The rigid and flexible domains of polyurethanes contribute to their viscoelastic behavior. This webinar is designed to give a fundamental understanding of viscoelasticity as it is related to polyurethane morphology and the isocyanate and polyol building blocks which make up polyurethane polymers.
Expert: Joseph Marcinko, Ph.D. Principal Scientist and President of Polymer Synergies LLC. Dr. Marcinko has over 35 years of industrial R&D, research management, and academic experience. His interests and expertise are in the areas of polyurethane chemistry, bio-polymers, adhesion science, wood composites, polymer characterization, solid-state NMR spectroscopy, and polymer structure-property relationships. He is an adjunct professor and a developer of industrial short courses related to polyurethane and polymer chemistry, adhesion science and industrial problem solving. Dr. Marcinko has authored over 50 peer reviewed publications, and has 17 patents and 2 patents pending. Educational Summary: Ph.D. - Chemistry, The University of Akron, Akron, OH, 1992; M.S. - Chemistry, Case Western Reserve University, Cleveland, OH, 1990; B.S. - Chemistry; B.S. - Biology, King's College, Wilkes-Barre, PA, 1983
Understanding Polyurethane Catalysts and How They Work
Language: English
ID: KH0348
Time Length: ~30 Min
Description: A catalyst is a compound used to affect the rate of a reaction from reactants to final product. Catalysts lower the activation energy required to achieve an excited molecular state, which allows the reaction to proceed more easily and with less energy. The primary job of the catalyst or combination of catalysts in a polyurethane reaction is to control the reaction profile. Polyurethane (PU) catalysts can be generally divided into two types, gelling catalysts and blowing catalysts. Gelling catalysts promote the reaction of the isocyanates with hydroxyl groups, and blowing catalysts are used in polyurethane foam systems and are more selective to catalyzing the reaction of the isocyanate with water to produce foam. This webinar is intended to give a fundamental overview of how PU catalysts work.
Expert: Joseph Marcinko, Ph.D. Principal Scientist and President of Polymer Synergies LLC. Dr. Marcinko has over 35 years of industrial R&D, research management, and academic experience. His interests and expertise are in the areas of polyurethane chemistry, bio-polymers, adhesion science, wood composites, polymer characterization, solid-state NMR spectroscopy, and polymer structure-property relationships. He is an adjunct professor and a developer of industrial short courses related to polyurethane and polymer chemistry, adhesion science and industrial problem solving. Dr. Marcinko has authored over 50 peer reviewed publications, and has 17 patents and 2 patents pending. Educational Summary: Ph.D. - Chemistry, The University of Akron, Akron, OH, 1992; M.S. - Chemistry, Case Western Reserve University, Cleveland, OH, 1990; B.S. - Chemistry; B.S. - Biology, King's College, Wilkes-Barre, PA, 1983
Understanding the Use of Surfactants in Polyurethane Formulations
Language: English
ID: KH0349
Time Length: ~30 Min
Description: Polyurethane surfactants are utilized across a broad range of polyurethane applications including footwear, mattresses foams, automotive interiors, and foam insulation used in refrigerators and construction. The function of a surfactant can be to enhance chemical compatibility of isocyanates and polyols, improve cell nucleation and stabilization and to prevent coalescence. Surfactants work by preserving the thermodynamically unstable state of a foam while it is rising by affecting surface forces until the polyurethane polymerizes far enough to maintain the cell structure. This webinar is intended to give a fundamental overview of how polyurethane surfactants work.
Expert: Joseph Marcinko, Ph.D. Principal Scientist and President of Polymer Synergies LLC. Dr. Marcinko has over 35 years of industrial R&D, research management, and academic experience. His interests and expertise are in the areas of polyurethane chemistry, bio-polymers, adhesion science, wood composites, polymer characterization, solid-state NMR spectroscopy, and polymer structure-property relationships. He is an adjunct professor and a developer of industrial short courses related to polyurethane and polymer chemistry, adhesion science and industrial problem solving. Dr. Marcinko has authored over 50 peer reviewed publications, and has 17 patents and 2 patents pending. Educational Summary: Ph.D. - Chemistry, The University of Akron, Akron, OH, 1992; M.S. - Chemistry, Case Western Reserve University, Cleveland, OH, 1990; B.S. - Chemistry; B.S. - Biology, King's College, Wilkes-Barre, PA, 1983
Pinhole Problems in Flexible PU Foams -Troubleshooting
Language: English
ID: KH0507
Time Length: ~60 Min
Keyword: Flexible Polyurethanes
Description: # Pinhole Problem Overview
# Understanding Pinholes
# Machine Issues
# Resolving Processing Problems
Expert: Mr. M. A Naqi is Principal consultant and President of LinQ Tech Inc. based in Canada. A graduate in Science I started my career as ‘Production Manager ‘on a continuous Foaming machine at Poly Products LLC (Oman) between 1980 -2001 while directing the company from infancy to market leader in special foams, eventually became CTO in the company. During this period added a molded foam line as well as a rebonded foam line. I have developed formulations for all kinds of special foams, including soft and super soft grades with standard polyol, a unique pre-polymer dispensing system for rebonded foam which preludes cleaning of the pump and pouring tube. Started my own consultation company in 2001 assisting producers in Canada, Middle East and Asia, teaching foam production, adjusting formulations and talking at various shows and been involved in the industry for over 35 years.
Q & A with Expert : Polyurethane Elastomers - Structure / Property / Performance
Language: English
ID: KH0411
Time Length: ~60 Min
Description: Dr. Joseph Marcinko, an Experienced Polyurethane Expert will be sharing his advice , experience and responses appropriately on the questions and issues raised in the "Q & A Session : Polyurethane Elastomers - Structure / Property / Performance". Registered participants can send questions in advance that they want to ask or they can ask their questions in the live session. If participants wish to have a private session with Dr. Joseph Marcinko, it will be arranged at mutual convenient time. Private Session length is 90 minutes maximum.
Expert: Joseph Marcinko, Ph.D. Principal Scientist and President of Polymer Synergies LLC. Dr. Marcinko has over 35 years of industrial R&D, research management, and academic experience. His interests and expertise are in the areas of polyurethane chemistry, bio-polymers, adhesion science, wood composites, polymer characterization, solid-state NMR spectroscopy, and polymer structure-property relationships. He is an adjunct professor and a developer of industrial short courses related to polyurethane and polymer chemistry, adhesion science and industrial problem solving. Dr. Marcinko has authored over 50 peer reviewed publications, and has 17 patents and 2 patents pending. Educational Summary: Ph.D. - Chemistry, The University of Akron, Akron, OH, 1992; M.S. - Chemistry, Case Western Reserve University, Cleveland, OH, 1990; B.S. - Chemistry; B.S. - Biology, King's College, Wilkes-Barre, PA, 1983
Polyurethane Chemistry (MasterClass)
Language: English
MasterClass
ID: KH0413
Time Length:
Description:
Expert: Joseph Marcinko, Ph.D. Principal Scientist and President of Polymer Synergies LLC. Dr. Marcinko has over 35 years of industrial R&D, research management, and academic experience. His interests and expertise are in the areas of polyurethane chemistry, bio-polymers, adhesion science, wood composites, polymer characterization, solid-state NMR spectroscopy, and polymer structure-property relationships. He is an adjunct professor and a developer of industrial short courses related to polyurethane and polymer chemistry, adhesion science and industrial problem solving. Dr. Marcinko has authored over 50 peer reviewed publications, and has 17 patents and 2 patents pending. Educational Summary: Ph.D. - Chemistry, The University of Akron, Akron, OH, 1992; M.S. - Chemistry, Case Western Reserve University, Cleveland, OH, 1990; B.S. - Chemistry; B.S. - Biology, King's College, Wilkes-Barre, PA, 1983
Problems of Splits in Polyurethane Foams Manufacturing Processes
Language: English
ID: KH0425
Time Length: ~100 Min
Description: Polyurethane (PU) foams boost a wide micro and macro morphological properties space which enable its use in a wide swath of applications areas. On the one extreme are the hard and brittle closed fine celled rigid PU foams which are used in a variety of heat management (insulations) applications. On the other extreme are soft open celled flexible PU foams which are used in a variety of comfort applications involving seating, bedding and cushioning. A variety of processes are used to produce these various types of polyurethane foams. Rigid polyurethane foams are typically mostly produced by molding processes, although there are some spray applications as well. Flexible polyurethane foams use a wider variety of applications technologies. The slab-stock foams are typically produced by pouring and reacting mixture on a conveyor system on which a very large bun grows as the foaming system is conveyed down the line. Similarly some viscoelastic or memory foams, as well as some high resiliency (HR) foams used for bedding applications are also produced on conveyor systems. On the other hand, a significant portion of both HR and Viscoelastic foams particularly those used for seating, cushioning and other specialized applications are produced by molding processes.
All these types of polyurethane foams can undergo SPLITS (tearing) during or shortly after the manufacturing process. Foam splits result in poor foam performance in their various applications and therefore highly undesirable. In rigid foam used for insulation applications, foam splits result in significant deterioration of the insulating property. For flexible foams, splits result in poor durability and load bearing and comfort properties. The root cause of splits in polyurethane foams and how to eliminate them in the production of these foams will be addressed in this Webinar.
Expert: Dr. Bernard E. Obi is a retired dynamic polymers/materials scientist with extensive expertise in cellular materials in general; but particularly in polyurethane foams processes and applications. He has extensive expertise in both rigid and flexible polyurethane foams. Within the flexible PU foams space, the expertise encompass high resiliency (HR), slab-stock and viscoelastic or memory foams. He earned a Ph.D. in chemical engineering and worked for The Dow Chemical Company from July 1985 to July 2015. Apart from polyurethanes technology; he also has significant expertise in free radical dispersion/suspension polymerization, surface and interfacial science, micro & macro-structure-property-performance relationships, materials development, composites, elastomers and rubbers. He authored a text book on Polymeric Foams Published December 7th 2017 by Elsevier Publishers. Dr. Obi operates his consulting company (PolyFoam Consulting LLC) out of the Houston area in Texas USA, and is engaged in providing consulting services to the polymeric foams industries and businesses.
Fire Safety Regulations and the Role of Flexible PU Foams
Language: English
ID: KH0426
Time Length: ~75 Min
Description: Polyurethane, like any organic material will burn when exposed to an appropriate ignition source. Flammability of polyurethanes, particularly flexible foam products widely used in home and office furnishings, as well as in the automotive and railway sectors is a subject of great concern to the public opinion and policy makers. This inherent flammability property is closely related to the chemical nature of expanded polymer, being a cellular material with high air permeability and extended inner surface area. There are several reports available in many countries concerning fire statistics related to upholstered furniture which have put into evidence that ignition by cigarettes is one of the primary causes for furniture fire fatalities. Such worrying statistics which showed an increasing trend of fire-related deaths in homes urged several government bodies to take action by introducing at various levels, the so-called Furniture and furnishings (fire safety) regulations for domestic environment and public places. In this scenario, flame-retardant additives have proven very useful to improve the reaction to fire properties of flexible PU foams but recent debate around safety in homes and public places revolves principally around the need for furniture to meet specific fire safety requirements without posing other health risks associated with potential side effects related to smoke toxicity. This KnowHow Webinar is aimed to illustrate the major fire safety measures adopted in various countries to protect the PU foam in order to ensure its safe use in homes and public places and how the selection of the right formulation tool can help to satisfy these requirements.
Expert: Dr. Felix Sam is the Global Chemical Manager in one of the world leading Companies specialized in the manufacture of polyurethane based technical items for sport, leisure and transport with headquarters in Italy and production sites in the UK, Italy, Brazil and China. He is in charge of the R&D activities for the development of formulations and foaming processes. He holds responsibilities in the definition and supervision of Chemical – toxicological protocol which embodies the most important international regulations (REACH, RoHS, CPSC, California Proposition 65, OeKO Tex). Dr. Sam started his career in Eni Group (Italy) as a Research Chemist in flexible polyurethane foams slabstock and molded for automotive, railway and furniture sectors. He later joined The Dow Chemical and headed the chartered team for the integration and transition into new production technologies. In his 30 years of
experience, he played an active role in technical service supporting customers and commissioning production plants worldwide. His areas of expertise are in polyurethane chemistry, flexible slabstock and molded, high performance integral skin for superior comfort, viscoelastic foam and polyurethane gel. His interests also include the world of sustainability with focus on raw materials from renewable sources and reconversion of post-consumer goods. Dr. Sam is author and co-author of over 20 patents, has published many scientific papers and contributed as speaker in several international conferences.
Processing Flexible Polyurethane Flame Retardant Foams
Language: English
ID: KH0464
Time Length: ~60 Min
Keyword: Flexible Polyurethanes
Description:
Expert: Mr. M. A Naqi is Principal consultant and President of LinQ Tech Inc. based in Canada. A graduate in Science I started my career as ‘Production Manager ‘on a continuous Foaming machine at Poly Products LLC (Oman) between 1980 -2001 while directing the company from infancy to market leader in special foams, eventually became CTO in the company. During this period added a molded foam line as well as a rebonded foam line. I have developed formulations for all kinds of special foams, including soft and super soft grades with standard polyol, a unique pre-polymer dispensing system for rebonded foam which preludes cleaning of the pump and pouring tube. Started my own consultation company in 2001 assisting producers in Canada, Middle East and Asia, teaching foam production, adjusting formulations and talking at various shows and been involved in the industry for over 35 years.
Fire Resistant Polyisocyanurates (PIR) and Polyurethanes (MasterClass)
Language: English
BuffPack
MasterClass
ID: KH0466
Time Length: ~360 Min
Keyword: Rigid Polyurethanes, Chemsitry, Insultation
Description: # The Nature of Fire and Theoretical Ways to Prevent it.
# Principles of Developing PU Products with Enhanced Fire Resistance
# Raw Materials Improving Fire Resistance of PU’s
# Polyisocyanurate (PIR) Chemistry and Properties
# PIR Formulations and Raw materials
# Manufacturing Equipment for PIR production
# Fire Resistance Testing and Standards
Expert: Dr. Grazyna Mitchener, is the director and principal consultant in Polychemtech Ltd. – a technical and business consultancy specializing in innovative polyurethane technologies and other high performance polymeric products. From 1996 to 2008 she worked for Celotex in UK, developing first in Europe zero-ODP PIR rigid thermal insulation products. For the first ten years of her career she was an academic researcher and lecturer and worked on polymers with high heat and fire resistance. She gained her Ph.D. in Polymer Chemistry and Technology in 1992. She is the author of 8 patents and over 60 scientific papers, conference presentations and training workshops. For her contribution to the thermal insulation industry she was presented with the “Global Insulation Personality of 2014” award.
Technology for Producing Plastic Cellular Materials (Polymeric Foams)
Language: English
BuffPack
ID: KH0541
Time Length: ~60 Min
Description: Cellular materials are solid foams. They are often produced to take advantage of the properties of the solid material whilst at the same time taking advantage of their light-weighting characteristics. The light weight enables their insulation performance since gas is a poorer thermal conductor than solids. This Webinar explores the various technologies for producing cellular plastics (polymeric foams) from various polymer classes. The Webinar will cover aspects of foaming both thermoplastics and thermoset polymers. Thermoplastic polymers are those which are converted to foams starting from fully formed polymers which are processed through softening (melting or devitrification) and then followed by foaming. The end of foaming is accomplished by freezing the cellular structure through recrystallization or vitrification. Thermosetting polymers are those which start from liquid monomeric raw materials which undergo cross-linking chemical reactions to form a solid polymer. The foaming process happens simultaneously with the cross-linking reactions. The KnowHow Webinar will highlight the advantages and disadvantages encountered in foaming thermoplastic and thermoset polymers.
Expert: Dr. Bernard E. Obi is a retired dynamic polymers/materials scientist with extensive expertise in cellular materials in general; but particularly in polyurethane foams processes and applications. He has extensive expertise in both rigid and flexible polyurethane foams. Within the flexible PU foams space, the expertise encompass high resiliency (HR), slab-stock and viscoelastic or memory foams. He earned a Ph.D. in chemical engineering and worked for The Dow Chemical Company from July 1985 to July 2015. Apart from polyurethanes technology; he also has significant expertise in free radical dispersion/suspension polymerization, surface and interfacial science, micro & macro-structure-property-performance relationships, materials development, composites, elastomers and rubbers. He authored a text book on Polymeric Foams Published December 7th 2017 by Elsevier Publishers. Dr. Obi operates his consulting company (PolyFoam Consulting LLC) out of the Houston area in Texas USA, and is engaged in providing consulting services to the polymeric foams industries and businesses.
Thermosets Foams Processing Fundamentals
Language: English
ID: KH0542
Time Length: ~60 Min
Description: Thermosetting polymers are those which start from liquid monomeric raw materials, and undergo cross-linking chemical reactions to form a solid polymer. The foam expansion reaction which is called the blowing reaction is usually relatively very fast. The foam expansion process is typically completed between 60 to 90 seconds in most thermosets foaming processes. The gelling reactions which build polymer structure, hardness and strength takes relatively long time to complete, typically requiring several hours for completion. The purpose of the fast blowing expansion reaction is to minimize drainage which leads to foam instabilities and poor foam quality or in the worse case complete foam collapse. Thus the need to expand quickly has to be balanced with the equal need to polymerize (i.e. gelling reaction) quickly enough to stabilize the foam, whilst not too fast to retard both the foam expansion and cell opening for flexible foams. In addition to the balanced gelling reaction, surface active agents are typically used to provide the complex interfacial phenomena that provide stabilization in foaming processes that begin from the liquid state. The Webinar will highlight the complexities encountered in production of thermosetting polymeric foams, including the role of surface active agents, the balance of blowing-to-gelling reaction to control both polymer and cellular properties.
Expert: Dr. Bernard E. Obi is a retired dynamic polymers/materials scientist with extensive expertise in cellular materials in general; but particularly in polyurethane foams processes and applications. He has extensive expertise in both rigid and flexible polyurethane foams. Within the flexible PU foams space, the expertise encompass high resiliency (HR), slab-stock and viscoelastic or memory foams. He earned a Ph.D. in chemical engineering and worked for The Dow Chemical Company from July 1985 to July 2015. Apart from polyurethanes technology; he also has significant expertise in free radical dispersion/suspension polymerization, surface and interfacial science, micro & macro-structure-property-performance relationships, materials development, composites, elastomers and rubbers. He authored a text book on Polymeric Foams Published December 7th 2017 by Elsevier Publishers. Dr. Obi operates his consulting company (PolyFoam Consulting LLC) out of the Houston area in Texas USA, and is engaged in providing consulting services to the polymeric foams industries and businesses.
Flexible Polyurethane Foaming and Products Development Processes
Language: English
ID: KH0543
Time Length: ~60 Min
Description:
Expert: Dr. Bernard E. Obi is a retired dynamic polymers/materials scientist with extensive expertise in cellular materials in general; but particularly in polyurethane foams processes and applications. He has extensive expertise in both rigid and flexible polyurethane foams. Within the flexible PU foams space, the expertise encompass high resiliency (HR), slab-stock and viscoelastic or memory foams. He earned a Ph.D. in chemical engineering and worked for The Dow Chemical Company from July 1985 to July 2015. Apart from polyurethanes technology; he also has significant expertise in free radical dispersion/suspension polymerization, surface and interfacial science, micro & macro-structure-property-performance relationships, materials development, composites, elastomers and rubbers. He authored a text book on Polymeric Foams Published December 7th 2017 by Elsevier Publishers. Dr. Obi operates his consulting company (PolyFoam Consulting LLC) out of the Houston area in Texas USA, and is engaged in providing consulting services to the polymeric foams industries and businesses.
