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Phase structure and property relationships in ternary polypropylene/elastomer/filler composites: Effect of elastomer polarity
Author(s) -
Premphet K.,
Horat P.
Publication year - 2000
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(20000624)76:13<1929::aid-app10>3.0.co;2-h
Subject(s) - materials science , elastomer , composite material , polypropylene , ternary operation , scanning electron microscope , computer science , programming language
Ternary composites of polypropylene (PP), elastomer, and calcium carbonate (CaCO 3 ) filler were prepared to study their structure/property relationships. Two kinds of phase structure were formed, depending on the elastomer present in the composites. Separation of elastomer and filler particles was found when a nonpolar ethylene–octene copolymer was used. Encapsulation of filler by the elastomer was achieved by using a polar ethylene–vinyl acetate elastomer. The mechanical properties of ternary composites were strongly dependent on material composition and their phase structures. In the present study, composites with separate dispersion structure showed higher modulus and impact strength than those of encapsulation type. The deformation mechanisms of both composites were studied using scanning electron microscopy. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 76: 1929–1939, 2000