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The influence of residual stresses and orientation on the properties of amorphous polymers
Author(s) -
Thakkar B. S.,
Broutman L. J.
Publication year - 1980
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760201807
Subject(s) - materials science , polycarbonate , composite material , acrylonitrile butadiene styrene , izod impact strength test , polymer , residual stress , toughness , natural rubber , vinyl chloride , elastomer , ultimate tensile strength , copolymer
The effect of cold rolling on impact strength of poly(vinyl chloride) (PVC) acrylonitrile‐butadiene‐styrene (ABS), and an alloy of ABS and polycarbonate (Cycoloy) was studied. The results were presented in terms of Izod impact strength and present oil thickness reduction. The residual stresses molecule orientation and modification of mechanical properties due cold rolling were measured. It was shown that the mechanism of toughness enhancement in PVC, ABS, and Cycoloy different than the one observed in rolled polycarbonates. In the case of a highly localized failure initiation event (a single eraxe), which appears to be present in polycarbonate, the influence of residual stresses, is great, whereas in rubber modified polymers having multiple erasing over a large volume, orientation is more important than residual stress. Hot rolling of poly(methyl methaerylate) holds promise for a continuous process to achieve orientation and toughness enhancement.