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Evaluation of recycled PP/rubber/talc hybrids
Author(s) -
Long Yu,
Tiganis Bill E.,
Shanks Robert A.
Publication year - 1995
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.1995.070580306
Subject(s) - molar mass , materials science , filler (materials) , ultimate tensile strength , crystallization , natural rubber , composite material , talc , nucleation , molar mass distribution , ethylene propylene rubber , polymer chemistry , polymer , chemistry , organic chemistry , copolymer
Mechanical properties of recycled PP/rubber/filler systems were studied and mechanisms were discussed on the basis of molar mass and molar mass distribution, morphologies, and thermal behavior. Characteristics of recycled PP/rubber/filler depend on degradation of PP and additional components. Recycling processes decreased impact strength, but it seemed not to affect tensile properties significantly. Aging with UV and moisture affected mechanical properties by some degree of PP chain scissions and ethylene chain crosslinking in EP rubber. Inorganic filler acted as a crack center and accelerated aging degradation. Paint decreased mechanical properties significantly by introducing stress concentrations. Recycle processing decreased the molar mass and increased the molar mass distribution of PP. Aging with UV decreased crystallization temperature and increased crystallization half‐time by decreasing nucleation. © 1995 John Wiley & Sons, Inc.