Degradation and Stabilisation of PVC - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Degradation and Stabilisation of PVC write by J. Owen. This book was released on 2012-12-06. Degradation and Stabilisation of PVC available in PDF, EPUB and Kindle. Polyvinyl chloride has played a key role in the development of the plastics industry over the past 40 years and continues to be a polymer of major importance. The reasons for its enormous versatility and range of application derive from a combination of the basic structure which gives rise to a relatively tough and rigid material and its ability to accept a range of plasticisers and other additives which can modify its physical characteristics to produce a range of flexible products. Two major problems, however, have tested the skill and ingenuity of PVC technologists since earliest times. One is the thermal instability of the material at the temperatures required for melt processing and fabrication, and the second is the photochemical instability which until recently has limited the potentially large range of outdoor applications. Both problems have been handled in a commercially satisfactory way by the gradual development of a range of stabilisers, lubricants and other processing aids and the high quality material which has resulted has led to massive utilisation of PVC by industry. Totally adequate stabilisation requires a detailed understanding of the mechanisms by which degradation processes are initiated and propagated. Although great advances have been made in this respect in recent years the problem remains incompletely understood. This book presents an account of the present position and the problems which remain to be solved.
PVC Degradation and Stabilization
PVC Degradation and Stabilization - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook PVC Degradation and Stabilization write by George Wypych. This book was released on 2008-05-30. PVC Degradation and Stabilization available in PDF, EPUB and Kindle. With the global renewal of interest in PVC, this comprehensive book is well timed. Considering that PVC stabilization is the most important part of its formulation and performance, only four books have ever been published on this subject, and none since the 1980s. This book contains information on: chemical structure; PVC manufacturing technology; morphology; degradation by thermal energy and UV, gamma, and other forms of radiation; mechanodegradation; chemical degradation; analytic methods used in studying degradative and stabilization processes; stabilization; and the effect of PVC and its additives on health, safety, and environment. This is the one authoritative source on this subject.
PVC Degradation and Stabilization
PVC Degradation and Stabilization - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook PVC Degradation and Stabilization write by George Wypych. This book was released on 2020-03-27. PVC Degradation and Stabilization available in PDF, EPUB and Kindle. PVC Degradation and Stabilization, Fourth Edition, includes new developments in PVC production, new stabilization methods and mechanisms, new approaches to plasticization, methods of waste reprocessing, accelerated degradation due to electric breakdown, and much more. The book contains all the information necessary for the successful design of stabilization formulas in any PVC-based product. Other topics covered include degradation by thermal energy, UV, gamma and other forms of radiation, chemical degradation, and more. Analytical methods for studying degradative and stabilization processes aid readers in establishing a system for verifying results of stabilization with different stabilizing systems. Many new topics included in this edition are of particular interest today. These comprise new developments in PVC production yielding range of new grades, new stabilization methods and mechanisms (e.g. synergistic mixtures containing hydrotalcites and their synthetic equivalents, beta-diketones, functionalized fillers, Shiff bases), new approaches to plasticization, methods of waste reprocessing (life cycle assessment, reformulation, biodegradable materials, and energy recovery), accelerated degradation due to electric breakdown, and many more Revised to include cutting-edge research, patent updates and other information required to design successful stabilization in PVC-based products Covers chemical structure, PVC manufacturing technology, morphology, degradation by thermal energy, mechanodegradation, and more Includes a chapter on the analytical methods used in studying degradative and stabilization processes Discusses information on the effects of PVC and its additives on health, safety and the environment
PVC Formulary
PVC Formulary - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook PVC Formulary write by George Wypych. This book was released on 2020-04-01. PVC Formulary available in PDF, EPUB and Kindle. PVC Formulary, Third Edition, contains invaluable information for PVC manufacturers, processors and users. It discusses new product development and product engineering tools and the current state of the market for PVC products. This provides the reader with the critical data they need to formulate successful and durable products, and to evaluate formulations on the background of compositions used by others. Commercial types and grades, polymer forms, and physical-chemical properties of PVC are discussed in detail, with all essential information required for the decision-making process presented clearly to provide necessary data. The book contains over 600 formulations of products belonging to 23 categories that are derived from characteristic methods of production. A broad selection of formulations is used in each category to determine the essential components of formulations used in a particular method of processing, the most important parameters of successful products, troubleshooting information, and suggestions of further sources of information on the method of processing. The concept of this work and its companion book (PVC Degradation & Stabilization also published in 2020) is to provide the reader with complete information and data required to formulate successful and durable products and/or to evaluate formulations on the background of compositions used by others. Provides a comprehensive and data-rich guide to PVC and its additives, enabling easier and more effective material selection Includes over 600 formulations, along with methods of processing and troubleshooting information Presents critical data on physical properties, mechanical properties, health and safety, and environmental information for PVC and its products
Photostabilization of Polymers
Photostabilization of Polymers - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Photostabilization of Polymers write by J.F. Rabek. This book was released on 2012-12-06. Photostabilization of Polymers available in PDF, EPUB and Kindle. During the last two decades, the production of polymers and plastics has been increasing rapidly. In spite of developing new polymers and polymeric materials, only 40-60 are used commercially on a large scale. It has been estimated that half of the annual production of polymers is employed outdoors. Increasing the stability of polymers and plastics towards heat, light, atmospheric oxygen and other environmental agents and weathering conditions has always been a very important problem. The photochemical instability of most of polymers limits them to outdoor application, where they are photo degraded fast over periods ranging from months to a few years. To the despair of technologists and consumers alike, photodegrada tion and environmental ageing of polymers occur much faster than can be expected from knowledge collected in laboratories. In many cases, improved methods of preparation and purification of both monomers and polymers yield products of better quality and higher resistance to heat and light. However, without stabilization of polymers by applica tion of antioxidants (to decrease thermal oxidative degradation) and photostabilizers (to decrease photo-oxidative degradation) it would be impossible to employ polymers and plastics in everyday use.
