Electrophysical phenomena in the tribology of polymers

A I Sviridewok, A F Kilmovich, V N Kestelman9056995774, 9789056995775

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.

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Table of contents :
Electrophysical Phenomena in the Tribology of Polymers……Page 1
INTRODUCTION TO THE SERIES……Page 6
PREFACE……Page 7
ABBREVIATION LIST……Page 9
CONTENTS……Page 3
CHAPTER 1: PRINCIPLES OF FRICTION ELECTROPHYSICS IN POLYMERS……Page 10
Table of Contents……Page 0
1.1. ATOMIC AND MOLECULAR ELECTROPHYSICAL CONCEPTS OF THE NATURE OF FRICTION IN POLYMERS……Page 12
1.2. SURFACE STATES. THE ELECTRON THEORY OF DISORDERED SYSTEMS……Page 22
1.3. STATIC TRIBOELECTRIFICATION AND ELECTRET EFFECT IN POLYMERS……Page 29
REFERENCES……Page 39
2.1. CURRENT MEASURING AND PROBING TECHNIQUES OF INVESTIGATING TRIBOELECTRIFICATION……Page 43
2.2. THERMAL ANALYSIS OF ELECTRETS…….Page 48
2.3.ANALYSIS OF EMISSION PROCESSES……Page 54
2.4.TRIBOELECTRICAL MEASUREMENTS IN VARIOUS MEDIA……Page 56
2.5. DECORATION TECHNIQUE……Page 60
REFERENCES……Page 63
3.1. STATIC ELECTRIFICATION OF LIQUID-CIRCULATED AND FREE SPRAYED POLYMERS……Page 66
3.2. VARIATIONS IN STRUCTURES AND BEHAVIOR OF POLYMERS……Page 83
3.3. MECHANISM OF TRIBOELECTRIFICATION OF POLYMER POWDERS……Page 90
REFERENCES……Page 92
4.1. GENERAL CHARACTERISTICS OF TRIBOELECTRIFICATION……Page 94
4.2. CHARGE SIGN REVERSAL……Page 104
4.3. TRIBOELECTRIFICATION OF POLYMER MELTS……Page 107
4.4. TRIBOELECTRIFICATION OF POLYMER COMPOSITES……Page 108
4.5. EFFECT OF ELECTRIFICATION ON FRICTION……Page 113
REFERENCES……Page 116
5.1. GENERATION OF TRIBOELECTRETS AND THEIR EFFECT ON FRICTION AND WEAR……Page 118
5.2. THE COMBINED EFFECT OF ELECTRETIZATION AND TRIBOELECTRIFICATION……Page 129
5.3. THE ROLE OF ELECTRET STATE IN POLYMER COMPOSITES……Page 132
5.4. FRICTIONAL BEHAVIOR OF RADIOELECTRET POLYMER COATINGS……Page 144
5.5. MECHANISM OF PRODUCING THE ELECTRET STATE IN FRICTION OF POLYMERS……Page 148
REFERENCES……Page 149
6.1. EFFECT OF ATMOSPHERIC HUMIDITY……Page 151
6.2. FRICTION IN FLUIDS……Page 159
6.3. FRICTION IN VACUUM……Page 163
REFERENCES……Page 167
7.1. FRICTION ASSEMBLIES……Page 169
7.2. DIAMOND CUTTING……Page 175
7.3. POLYMER COATINGS……Page 181
7.4. ELECTRET FILTERS……Page 185
7.5. POLYMER COMPOSITES……Page 188
7.6. PROSPECTIVE APPLICATIONS OF TRIBOELECTRIC PHENOMENA……Page 190
CONCLUSION……Page 192
REFERENCES……Page 193