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Mechanism of enhanced impact strength of poly(vinyl chloride) modified by acrylic graft copolymer
Author(s) -
Yanagase Akira,
Ito Masakazu,
Yamamoto Naoki,
Ishikawa Masaru
Publication year - 1996
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(19960404)60:1<87::aid-app10>3.0.co;2-0
Subject(s) - copolymer , materials science , izod impact strength test , composite material , vinyl chloride , void (composites) , stress–strain curve , polymer chemistry , deformation (meteorology) , ultimate tensile strength , polymer
The mechanism of enhanced PVC impact strength of poly(vinyl chloride) modified by an acrylic graft copolymer was studied by the three‐point bending test on a U‐notched bar. In the mechanism, the void formation from the modifier released the constrained strain. The release suppresses the stress below the fibril strength in the material; consequently, stable deformation can develop over a large area and, thus, the impact strength of PVC modified by the acrylic graft copolymer is improved. © 1996 John Wiley & Sons, Inc.