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Crystallization behavior and mechanical properties of polypropylene/modified carbon black composites
Author(s) -
Zhu Ping,
Chen Jing,
Wu Chifei
Publication year - 2009
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.20566
Subject(s) - materials science , polypropylene , composite material , crystallization , ultimate tensile strength , carbon black , crystallite , izod impact strength test , nucleation , matrix (chemical analysis) , particle (ecology) , chemical engineering , natural rubber , chemistry , organic chemistry , engineering , metallurgy , oceanography , geology
Carbon black (CB) modified with small organic molecules was filled in polypropylene (PP) matrix. The crystallization behavior and mechanical properties of PP/modified CB (MCB) composites were investigated. Compared with the original CB, MCB could be dispersed uniformly in smaller particle sizes in PP matrix, and MCB could act as a more effective nucleating, toughening, and reinforcing agent when it was filled in PP at low concentrations. Further increasing of MCB particles in PP matrix resulted in the decrease of impact and tensile strength of PP/MCB composites. It was inferred from DSC results that the existence of CB vand MCB in PP matrix could result in the decrease of crystallite size and degree of perfection of PP. POLYM. COMPOS., 2009. © 2008 Society of Plastics Engineers