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Styrene‐ co ‐acrylonitrile resin modifications of PVC/CPE blends
Author(s) -
Yang Wenjun,
Wu Qiye,
Zhou Liling,
Wang Shuying
Publication year - 1997
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/(sici)1097-4628(19971121)66:8<1455::aid-app5>3.0.co;2-d
Subject(s) - materials science , acrylonitrile , composite material , ultimate tensile strength , rheology , izod impact strength test , vinyl chloride , polyvinyl chloride , elastomer , polyethylene , styrene , polymer blend , polymer , copolymer
The effects of styrene‐ co ‐acrylonitrile resin (AS) on the mechanical properties, morphology, and plasticizing and rheological behaviors of poly(vinyl chloride)/chlorinated polyethylene(PVC/CPE) blends are studied. The results show that the impact strength and the tensile strength are all increased and the plasticizing and rheological behaviors are also improved when a certain amount of AS is added into PVC/CPE blends, which are different in characteristics and regularity from plastics toughened with elastomers. It is blends of brittle—ductile transition regions (i.e., PVC/CPE = 100/10, 100/15) that can obviously be toughened by AS. The analysis of the morphological structure shows that AS promotes the formation of a CPE network that embeds the primary particles of PVC. © 1997 John Wiley & Sons, Inc. J Appl Polym Sci 66: 1455–1460, 1997