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Mechanism of toughening for polypropylene blended with ethylene–propylene–diene rubber following selective crosslinking

✍ Scribed by Masaru Ishikawa; Masataka Sugimoto; Toshio Inoune

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
694 KB
Volume
62
Category
Article
ISSN
0021-8995

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✦ Synopsis

Toughening mechanism of polypropylene (PP) blended with ethylene-propylene-diene rubber (EPDM) following selective crosslinking was examined in comparison with that of blends of PP before crosslinking. The yield stress, strength of craze, and density of void which are dominant factors for enhancing toughness in PP blends were evaluated and the deformation and fracture mechanism was discussed. It was concluded that toughness of PP blended with EPDM is improved by selective crosslinking, since the improvement of the craze strength is greater than the drop in the release of the constraint of strain. 0 1996 John Wiley & Sons, Inc.

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