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Improvement of the impact strength of a blend of poly(vinyl chloride) with copolyester thermoplastic elastomer by heat treatment
Author(s) -
Nishi T.,
Kwei T. K.
Publication year - 1976
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.1976.070200516
Subject(s) - copolyester , materials science , composite material , crazing , thermoplastic elastomer , thermoplastic , izod impact strength test , elastomer , vinyl chloride , rheology , polymer , copolymer , ultimate tensile strength , polyester
Dynamic mechanical properties and impact strength of a blend of poly(vinyl chloride) with a copolyester thermoplastic elastomer were studied. The microscopic structure of the blend was dependent on the thermal history of the specimen. By an appropriate heat treatment, the blend underwent phase separation with an attendant severalfold increase in room‐temperature impact strength. The mechanism of energy dissipation involves both crazing and shear flow processes.