This book is designed as a practical text for use in the laboratories of the plastic producer and user industries and by others such as universities and institutions who are concerned with problems associated with additives and adventitious impurities in polymers. For example, powerful new analytical tools have been made available to the chemist by a combination of various chromatographic techniques with methods of identifying separated additives and their degradation products by techniques based on infrared and mass spectrometry. In particular supercritical fluid chromatography combined with m.

This industrially relevant resource covers all established and emerging analytical methods for the deformulation of polymeric materials, with emphasis on the non-polymeric components. Each technique is evaluated on its technical and industrial merits. Emphasis is on understanding (principles and characteristics) and industrial applicability. Extensively illustrated throughout with over 200 figures, 400 tables, and 3,000 references.

Polymers have undoubtedly changed the world through many products that improve our lives. However, additives used to modify the overall characteristics of these materials may not be fully disclosed or understood. These additives may present possible environmental and health hazards. It is important to monitor consumer products for these compounds u

A must for experts in industry, this book describes the application of vibrational (FTIR, UV, Raman) and mass spectrometries and other instrumental techniques for identification and structure elucidation of plastics additives. Numerous tables and figures compress the state of the art.

This book deals with the application of spectroscopic techniques for characterisation of chemical and physical structures in viscoelastic materials, such as unvulcanised elastomers and their vulcanisates, various rubbery materials and some plastics, which when blended with particular additives (plasticisers) behave like rubbers. Analysis of the rubbery materials is complicated by the fact that rubbery products, such as tyres, tubes, seals, V-belts and hoses, contain in the rubbery matrix a significant amount of various compounds, i.e., fillers, vulcanising agents, antioxidants and plasticisers. Due to the complex composition, no single technique can provide a good understanding of the effect of chemical and physical structures on the functional properties of rubbery materials. Thus spectroscopy has become a powerful tool for the determination of polymer structures. The most comprehensive information on chemical and physical structures in relation to material properties can be obtained by using a combination of macroscopic techniques and methods that provide information on the molecular level. frequently used for analysis of rubbery materials, i.e., various methods of nuclear magnetic resonance (NMR) and optical spectroscopy. The main objective of this present book is to discuss a wide range of applications of the spectroscopic techniques for the analysis of rubbery materials. The book brings together the various spectroscopic techniques for obtaining the following information: chemical structure of rubbery materials, network structure analysis, heterogeneity of rubbery materials, physical properties of rubbery materials, functional properties and stability of rubbery materials, processing of rubbery materials and quality control. The contents of this book are of interest to chemists, physicists, material scientists and technologists who seek a better understanding of rubbery materials.

Additive Migration from Plastics Into Food examines the intrusion of foreign chemicals into food via additives present in plastics packaging and the toxic hazards they pose to consumers. This book shows how direct contact between the packed commodity and the plastic is likely to result in the transfer of polymer additives, adventitious impurities such as monomers, catalyst remnants, and residual polymerization solvents, and low-molecular-weight polymer fractions from the plastic into the packaged material. This book is comprised of nine chapters and begins with a discussion on the various types of plastics used in food packaging as well as the types of substances present in the plastic that might migrate into the food. Subsequent chapters review world literature on extraction testing and the analysis of extractants. The determination of various types of polymer additives and residual monomers in extractants of liquid foodstuffs and beverages, solid foods, edible oils, and fatty foodstuffs is considered. The final chapter looks at the legal requirements concerning the use of additives in food-grade plastics in various countries. This monograph will be of interest to those in the plastics industry, food and beverage packaging industry, and large retail outlets such as supermarkets, along with medical and public health officials, legislators, environmentalists, and the general public.

Recycling of Polymers This timely reference on the topic is the only book you need for a complete overview of recyclable polymers. Following an introduction to various polymer structures and their resulting properties, the main part of the book deals with different methods of recycling. It discusses in detail the recycling of such common polymers as polyethylene, polypropylene and PET, as well as rubbers, fibers, engineering polymers, polymer blends and composites. The whole is rounded off with a look at future technologies and the toxicological impact of recycled polymers. An indispensable reference source for those working in the field, whether in academia or industry, and whether newcomers or advanced readers.

Rubber analysis plays a vital part in ensuring that manufactured products are fit for purpose. This comprehensive, application-based book with up-to-date referencing covers all important applications and subject area associated with the analysis of rubber compounds and rubber products. Includes characterization of rubber polymers, rubber fumes, identification of extractables and leachables, as well as reverse engineering on compounded products.