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Thermal and mechanical properties of silicon rubber/ cis ‐polybutadiene rubber/ethylene–propylene–diene monomer blends
Author(s) -
Wu Weili,
Chen Dajun
Publication year - 2006
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.24173
Subject(s) - polybutadiene , natural rubber , materials science , epdm rubber , composite material , vulcanization , monomer , ethylene propylene rubber , elastomer , polymer blend , peroxide , butyl rubber , silicon , copolymer , polymer chemistry , polymer , organic chemistry , chemistry , metallurgy
Abstract Considering the properties of silicon rubber, ethylene–propylene–diene monomer (EPDM), and cis ‐polybutadiene rubber (BR), a blend made by a new method was proposed in this article; this blend had thermal resistance and good mechanical properties. The morphology of the blend was studied by SEM, and it was found that the adhesion between the phases of BR, EPDM, and polysiloxanes (silicon rubber) could be enhanced, and the compatibility and covulcanization were good. The influence of the mass ratio of peroxide and silica on the mechanical properties and thermal resistance of the blend was studied. The results showed that the mechanical properties and thermal resistance of the blend were improved when silicon rubber/BR/EPDM was 20/30/50, dicumyl peroxide/sulfur was 2.5/2.5, and the amount of silica was 80 phr. The integral properties of rubber blend had more advantages than did the three rubbers. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 101: 4462–4467, 2006