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Gordon and Breach Science Publishers, 1999, 195 pages, ISBN
Numerous practical problems connected to triboelectric phenomena remain unsolved in both the fabrication and behavior of polymer threads and fabrics in a variety of industrial articles. Using the results of unique experiments carried out in the countries of the former Soviet Union, this volume fills a gap in the science of tribology, presenting fundamental information on the nature of physical and chemical processes governing and accompanying tribodeformation and tribodisintegration of polymers. Details on electrophysical phenomena such as contact electrification and emergence of the electret state in polymer materials are also provided.Principles of Friction Electrophysics in Polymers Experimental Techniques of Investigating Electrical Phenomena in the Friction of Polymers Triboelectrification of Polymer Powders Triboelectrification of Block and Molten Polymer Materials Triboelectret State of Polymers Environmental Effects on Electrophysical Processes in Friction Applications of the Triboelectrification and Electret Effects in Polymers
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Electrophysical Phenomena in the Tribology of Polymers A. I. Sviridenok
Research Center on Resources Savings National Academy of Sciences Grodno, Belarus
A. F. Klimovich
Institute of Mechanics of Metal Polymer Systems National Academy of Sciences Gomel, Belarus and V. N. Kestelman
KVN International King of Prussia, Pennsylvania USA
Gordon and Breach Science Publishers Australia • Canada • China • France • Germany • India • Japan • Luxembourg • Malaysia • The Netherlands • Russia • Singapore • Switzerland
Copyright © 1999 OPA
Copyright © 1999 OPA (Overseas Publishers Association) N.V. Published by license under the Gordon and Breach Science Publishers imprint. All rights reserved. No part of this book may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and recording, or by any information storage or retrieval system, without permission in writing from the publisher. Printed in Malaysia.
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British Library Cataloguing in Publication Data Sviridenok, A. I. Electrophysical phenomena in the tribology of polymers. – (Polymer science & engineering monographs ; v. 5 – ISSN 1023-7720) 1. Tribology 2. Polymers – Surfaces 3. Polymers – Electric properties I. Title II. Klimovich, A. F. III. Kestelman, V. N. 547.7´045´7 ISBN 90-5699-577-4
Copyright © 1999 OPA
CONTENTS
Introduction to the Series
ix
Preface
xi
Abbreviation List
1
1 Principles of Friction Electrophysics in Polymers
3
1.1 Atomic and Molecular Electrophysical Concepts of the Nature of Friction in Polymers 5 1.2 Surface States. The Electron Theory of Disordered Systems
15
1.3 Static Triboelectrification and Electret Effect in Polymers
22
References
32
2 Experimental Techniques of Investigating Electrical Phenomena in the Friction of Polymers
36
2.1 Current Measuring and Probing Techniques of Investigating Triboelectrification
36
2.2 Thermal Analysis of Electrets
41
2.3 Analysis of Emission Processes
47
2.4 Triboelectrical Measurements in Various Media
49
2.5 Decoration Technique
53
References
56
3 Triboelectrification of Polymer Powders
59
3.1 Static Electrification of Liquid-Circulated and Free-Sprayed Polymers
59
3.2 Variations in Structures and Behavior of Polymers
76
3.3 Mechanism of Tribo