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High Impact Polypropylene Structure Evolution And Impact On Reaction
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Book Synopsis High Impact Polypropylene - Structure Evolution and Impact on Reaction by : Miguel Angel Plata Acevedo
Download or read book High Impact Polypropylene - Structure Evolution and Impact on Reaction written by Miguel Angel Plata Acevedo and published by . This book was released on 2018* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This work focuses on the effect of reaction conditions, in particular prepolymerization, on the particle morphology and how morphology influences process kinetics in the polymerization of heterophasic polypropylene. After establishing reproducibility and reference activity levels, a screening of the effect of homo and prepolymerization conditions on morphology was performed. Results showed for both catalysts studied, that prepo is required in order to obtain good activity and that addition of ethylene during prepolymerization is an effective handle to adjust the morphology. By addition of ethylene, bulk density of the resulting polymer is reduced and porosity is increased. Sorption measurements reveal for samples with lower bulk density faster mass-transfer rates. Activity in the matrix stage is for both catalysts basically not affected by ethylene in the prepo. Crystallinity of the homopolymers is not affected by ethylene in the prepo step. During the rubber-phase, the samples with ethylene in the prepo showed lower activities. There are indications that ethylene incorporation in the rubber step is higher for samples with ethylene during the prepolymerization. Simulation studies show that samples with ethylene in the prepo reduce the mass-transfer limitations for ethylene in the heco-stage, which helps to better exploit the catalyst capabilities for ethylene incorporation.
Book Synopsis Interaction Between the Polymerisation Process and Particle Morphology by : Djallel Bouzid
Download or read book Interaction Between the Polymerisation Process and Particle Morphology written by Djallel Bouzid and published by . This book was released on 2004 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: The principal objective of this thesis is to elucidate how the rubber phase produced in the copolymerisation step is distributed inside growing particles of high impact polypropylene, and how the amount of rubber incorporated in the original polypropylene matrix influences the overall morphology and mechanical properties of the final product. To this end, polymer was made under different conditions, and the products were characterised and analysed in order to attempt to understand how the morphology of the isotactic polypropylene matrix changes during particle growth, how rubber flows in the porous network, and how the EPR arrives at, and pools on the surface of the particle. All of these phenomena are obviously dependent on each other, which complicates the problem. A representation which incorporates the rheological properties of the copolymer combined with the structure of the homopolymer polypropylene matrix is probably a more realistic approach to take.
Book Synopsis Polypropylene Handbook by : József Karger-Kocsis
Download or read book Polypropylene Handbook written by József Karger-Kocsis and published by Springer. This book was released on 2019-03-18 with total page 648 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book extensively reviews Polypropylene (PP), the second most widely produced thermoplastic material, having been produced for over 60 years. Its synthesis, processing and application are still accompanied by vigorous R&D developments because the properties of PP are at the borderline between those of commodity and engineering thermoplastics. Readers are introduced to various tacticities and polymorphs of PP, and their effects on structural properties. Further, the book addresses the control of optical properties using nucleants, provides strategies for overcoming the limited cold/impact resistance of PP, examines in detail the effects of recycling, and presents guidelines for the property modification of PPs through foaming, filling and reinforcing with respect to target applications. Special attention is paid to descriptions and models of properties as a function of morphological variables. Last but not least, the book suggests potential practical applications of PP-based systems, especially in the packaging, appliances, building/construction, textile and automotive sectors. Each chapter, written by internationally respected scientists, reflects the current state-of-art in the respective field and offers a vital source of information for students, researchers and engineers interested in the morphology, properties, testing and modeling of PP and PP-based systems. The content is indispensable to the appropriate application of PPs and related composites.
Book Synopsis Modeling Particle Growth and Morphology of Impact Polypropylene Produced in the Gas Phase by : Jon A. Debling
Download or read book Modeling Particle Growth and Morphology of Impact Polypropylene Produced in the Gas Phase written by Jon A. Debling and published by . This book was released on 1997 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polypropylene written by Weiyu Wang and published by . This book was released on 2020-05-06 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Introduction to Industrial Polypropylene by : Dennis B. Malpass
Download or read book Introduction to Industrial Polypropylene written by Dennis B. Malpass and published by John Wiley & Sons. This book was released on 2012-07-02 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: This introductory text is an important resource for new engineers, chemists, students, and chemical industry personnel to understand the technical aspects of polypropylene which is the 2nd largest synthetics polymer in manufactured output. The book considers the following topics: What are the principal types of polypropylene and how do they differ? What catalysts are used to produce polypropylene and how do they function? What is the role of cocatalysts and how have they evolved over the years? How are industrial polypropylene catalysts tested and the resultant polymer evaluated? What processes are used in the manufacture of polypropylene? What are the biopolymer alternatives to polypropylene? What companies are the major industrial manufacturers of polypropylene? What is the environmental fate of polypropylene?
Download or read book Polypropylene written by J. Karger-Kocsis and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 988 pages. Available in PDF, EPUB and Kindle. Book excerpt: My heart sank when I was approached by Dr Hastings and by Professor Briggs (Senior Editor of Materials Science and Technology and Series Editor of Polymer Science and Technology Series at Chapman & Hall, respectively) to edit a book with the provisional title Handbook of Poly propylene. My reluctance was due to the fact that my former book [1] along with that of Moore [2], issued in the meantime, seemed to cover the information demand on polypropylene and related systems. Encour aged, however, by some colleagues (the new generation of scientists and engineers needs a good reference book with easy information retrieval, and the development with metallocene catalysts deserves a new update!), I started on this venture. Having some experience with polypropylene systems and being aware of the current literature, it was easy to settle the titles for the book chapters and also to select and approach the most suitable potential contributors. Fortunately, many of my first-choice authors accepted the invitation to contribute. Like all editors of multi-author volumes, I recognize that obtaining contributors follows an S-type curve of asymptotic saturation when the number of willing contributors is plotted as a function of time. The saturation point is, however, never reached and as a consequence, Dear Reader, you will also find some topics of some relevance which are not explicitly treated in this book (but, believe me, I have considered them).
Download or read book Polypropylene written by Clive Maier and published by William Andrew. This book was released on 1998-04-15 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polypropylene: The Definitive User's Guide and Databook presents in a single volume a panoramic and up-to-the-minute user's guide for today's most important thermoplastic. The book examines every aspectùscience, technology, engineering, properties, design, processing, applicationsùof the continuing development and use of polypropylene. The unique treatment means that specialists can not only find what they want but for the first time can relate to and understand the needs and requirements of others in the product development chain. The entire work is underpinned by very extensive collections of property data that allow the reader to put the information to real industrial and commercial use. Despite the preeminence and unrivaled versatility of polypropylene as a thermoplastic material to manufacture, relatively few books have been devoted to its study. Polypropylene: The Definitive User's Guide and Databook not only fills the gap but breaks new ground in doing so.Polypropylene is the most popular thermoplastic in use today, and still one of the fastest growing. Polypropylene: The Definitive User's Guide and Databook is the complete workbook and reference resource for all those who work with the material. Its comprehensive scope uniquely caters to polymer scientists, plastics engineers, processing technologists, product designers, machinery and mold makers, product managers, end users, researchers and students alike.
Book Synopsis Polyolefin Reaction Engineering by : Joao B. P. Soares
Download or read book Polyolefin Reaction Engineering written by Joao B. P. Soares and published by John Wiley & Sons. This book was released on 2013-10-02 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Monomers composed of carbon and hydrogen atoms are the simple building blocks that make up polyolefins - molecules which are extremely useful and which have an extraordinary range of properties and applications. How these monomer molecules are connected in the polymer chain defines the molecular architecture of polyolefins. Written by two world-renowned authors pooling their experience from industry and academia, this book adopts a unique engineering approach using elegant mathematical modeling techniques to relate polymerization conditions, reactor and catalyst type to polyolefin properties. Readers thus learn how to design and optimize polymerization conditions to produce polyolefins with a given microstructure, and how different types of reactors and processes are used to create the different products. Aimed at polymer chemists, plastics technologists, process engineers,the plastics industry, chemical engineers, materials scientists, and company libraries.
Book Synopsis Polypropylene and other Polyolefins by : S. van der Ven
Download or read book Polypropylene and other Polyolefins written by S. van der Ven and published by Elsevier. This book was released on 2012-12-02 with total page 635 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with polyolefins prepared via Ziegler-Natta catalysis, from a polymer chemist's viewpoint, i.e. with emphasis on their preparation and on their basic composition and properties. In addition to chapters on catalysts, polymerization behaviour and polymer properties such as tacticity, crystallinity, morphology etc., a chapter is also devoted to characterization methods. The main part of this work is reserved for polypropylene in all its forms, namely, homopolymer, random copolymer and toughened (`block') copolymers, for which extensive own-experience was present. The other polyolefins are also covered by means of a thorough literature review.This book is intended for scientists active in the field of polyolefins, including catalyst development, but should also prove an invaluable medium in academia to illustrate the growth of understanding in catalysis, kinetics and characterization of a commercially very important class of polymers.
Book Synopsis The Effect of Polypropylene Structure on Processability by : Vito V. DeMaio
Download or read book The Effect of Polypropylene Structure on Processability written by Vito V. DeMaio and published by . This book was released on 1996 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Radiation on Properties of Polymers by : Laurence W. McKeen
Download or read book The Effect of Radiation on Properties of Polymers written by Laurence W. McKeen and published by William Andrew. This book was released on 2020-08-20 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Effect of Radiation on Properties of Polymers examines the effects of radiation on plastics and elastomers. Polymers are required in products or parts for a range of cutting-edge applications that are exposed to radiation, in areas such as space, medicine, and radiation processing. This book focuses on the effects of radiation exposure within that environment, providing in-depth data coverage organized by category of polymer. Aspects such as radiation impact on mechanical and thermal properties, including glass transition and heat deflection temperatures, are described, demonstrating how changes in these properties affect the performance of plastic or elastomer parts. The effect of radiation on electrical properties is also included. Supporting introductory chapters explain the key concepts of radiation, including the physical, mechanical, and thermal properties of plastics and elastomers. This is a vital resource for plastics engineers, product designers, and R&D professionals, working on products or parts for radioactive environments, as well as engineers and scientists in the medical, nuclear, and radiation processing industries. The book also supports researchers and scientists in plastics engineering, polymer processing and properties, polymer and coatings chemistry, materials science, and radiation. - Brings together highly valuable data on the effect of radiation on the properties of polymers and elastomers - Enables the reader to compare properties and to select the best possible materials for specific applications - Supported by detailed explanations and analysis, ensuring that the reader understands how to interpret and utilize the data
Download or read book Advanced Polymers Abstracts written by and published by . This book was released on 1996 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Introduction to Industrial Polyethylene by : Dennis B. Malpass
Download or read book Introduction to Industrial Polyethylene written by Dennis B. Malpass and published by John Wiley & Sons. This book was released on 2010-12-17 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Demystifies the largest volume manmade synthetic polymer by distillingthe fundamentals of what polyethylene is, how it's made and processed,and what happens to it after its useful life is over. Endorsement for Introduction to Industrial Polyethylene "I found this to be a straightforward, easy-to-read, and useful introductory text on polyethylene, which will be helpful for chemists, engineers, and students who need to learn more about this complex topic. The author is a senior polyethylene specialist and I believe we can all benefit from his distillation of knowledge and insight to quickly grasp the key learnings." —R.E. King III; Ciba Corporation (part of the BASF group) Jargon used in industrial polyethylene technology can often be bewildering to newcomers. Introduction to Industrial Polyethylene educates readers on terminology commonly used in the industry and demystifies the chemistry of catalysts and cocatalysts employed in the manufacture of polyethylene. This concise primer reviews the history of polyethylene and introduces basic features and nomenclatures for this versatile polymer. Catalysts and cocatalysts crucial to the production of polyethylene are discussed in the first few chapters. Latter chapters provide an introduction to the processes used to manufacture polyethylene and discuss matters related to downstream applications of polyethylene such as rheology, additives, environmental issues, etc. Providing industrial chemists and engineers a valuable reference tool that covers fundamental features of polyethylene technology, Introduction to Industrial Polyethylene: Identifies the fundamental types of polyethylene and how they differ. Lists markets, key fabrication methods, and the major producers of polyethylene. Provides biodegradable alternatives to polyethylene. Describes the processes used in the manufacture of polyethylene. Includes a thorough glossary, providing definitions of acronyms and abbreviations and also defines terms commonly used in discussions of production and properties of polyethylene. Concludes with the future of industrial polyethylene.
Book Synopsis Multimodal Polymers with Supported Catalysts by : Alexandra Romina Albunia
Download or read book Multimodal Polymers with Supported Catalysts written by Alexandra Romina Albunia and published by Springer. This book was released on 2019-01-16 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an overview of polyolefine production, including several recent breakthrough innovations in the fields of catalysis, process technology, and materials design. The industrial development of polymers is an extraordinary example of multidisciplinary cooperation, involving experts from different fields. An understanding of structure-property and processing relationships leads to the design of materials with innovative performance profiles. A comprehensive description of the connection between innovative material performance and multimodal polymer design, which incorporates both flexibility and constraints of multimodal processes and catalyst needs, is provided. This book provides a summary of the polymerization process, from the atomistic level to the macroscale, process components, including catalysts, and their influence on final polymer performance. This reference merges academic research and industrial knowledge to fill the gaps between academic research and industrial processes. · Connects innovative material performance to the flexibility of multimodal polymer design processes; · Provides a comprehensive description of the polymerization process from the atomic level to the macroscale; · Presents a polyhedric view of multimodal polymer production, including structure, property, and processing relationships, and the development of new materials.
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
