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Thermochemical stress crazing and cracking of thermoplastics
Author(s) -
Legrand D. G.
Publication year - 1994
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1994.070521311
Subject(s) - crazing , materials science , cracking , composite material , environmental stress cracking , polycarbonate , quenching (fluorescence) , thermal , isopropyl alcohol , stress (linguistics) , thermodynamics , polymer , chemistry , organic chemistry , stress corrosion cracking , physics , alloy , fluorescence , linguistics , philosophy , quantum mechanics
A new method of inducing crazing and cracking in thermoplastics is discussed. The method involves the thermal quenching of hot thermoplastics into simple organic liquids or organic solutions. Data are presented for several different thermoplastics and a number of different liquids. The results are interpreted in terms of a model based on the work of Manning and Lineback that incorporates thermal strains and stresses, thermal conductivity, specific interfacial energies, and defects. The specific crazing energy for bisphenol‐A polycarbonate when quenched into isopropyl alcohol is determined to be approximately 3 × 10 5 erg/cm 2 from this model. © 1994 John Wiley & Sons, Inc.