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Temperature and strain rate dependence of the tensile yield stress of PVC

✍ Scribed by Francisco Povolo; Gustavo Schwartz; Élida B. Hermida

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
615 KB
Volume
61
Category
Article
ISSN
0021-8995

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✦ Synopsis

Data on the tensile yield behavior of poly(viny1 chloride) (PVC), reported in the literature, are interpreted in terms of a model involving a cooperative movement of several independent structural units, all with the same activation enthalpy. This analysis leads to physical parameters such as the internal stress, activation volume, and enthalpy, etc. These values are discussed and compared with those determined from thermodynamical considerations using stress relaxation tests and tensile curves at a constant strain rate.

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