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Orientation in composite of polypropylene and talc
Author(s) -
Rybnikář F.
Publication year - 1989
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.1989.070380806
Subject(s) - talc , polypropylene , materials science , tacticity , composite material , crystallization , composite number , nucleation , molding (decorative) , polymer , chemical engineering , chemistry , polymerization , organic chemistry , engineering
X‐ray diffraction and microscopical investigation of test samples prepared by injection molding from composites of isotactic polypropylene with talc revealed a preferred orientation of the talc and polypropylene matrix. Contrary to the situation in polypropylene alone, the preferred orientation in polypropylene–talc composites survived melting and a new crystallization. Crystallization rate measurements confirmed the nucleation activity of talc for polypropylene crystallization.