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Effects of coupling agents on the mechanical and rheologica properties and mica‐reinforced polypropylene
Author(s) -
Boaira M. S.,
Chaffey C. E.
Publication year - 1977
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.760171003
Subject(s) - materials science , composite number , composite material , polypropylene , methacrylate , mica , ethylenediamine , flexural strength , silane , coupling (piping) , viscometer , polymer chemistry , viscosity , polymer , polymerization , organic chemistry , chemistry
Dimethylaminoethyl methacrylate (DMAEMA) was investigated as a prospective coupling agent for mica‐reinforced polypropylene. Composites prepared with the widely‐used silane coupling agent, N‐(4‐vinylphenyl) methyl‐N′‐(3‐trimethoxysilylpropyl)ethylenediamine monohydroehloride (Z‐6032), were compared with the amino‐coupled composite. Improvements in the flexural properties at room temperature were observed with the two coupling agents: a 22 percent increase in the strength with the silane compared to a. 16 percent increase with DMAEMA. Cone‐and‐plate viscometry at 220°C showed that the addition of coupling agents greatly, reduces the viscosity of the composite: a 50 percent decease was obtained with the silane‐treated composite and a 20 percent decrease with DMAEMA.