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Damping mechanism and different modes of molecular motion through the glass transition of chlorinated butyl rubber and petroleum resin blends
Author(s) -
Zhang Fengshun,
He Guansong,
Xu Kangming,
Wu Hong,
Guo Shaoyun,
Zhang Chaoliang
Publication year - 2014
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.40464
Subject(s) - miscibility , natural rubber , materials science , glass transition , elastomer , butyl rubber , composite material , relaxation (psychology) , petroleum , polymer , chemistry , organic chemistry , psychology , social psychology
To further investigate the effect of petroleum resin on damping mechanism and different modes of motion of chlorinated butyl rubber (CIIR), two kinds of petroleum resins with different molecular structures, aliphatic C5 resin and aromatic C9 resin, were incorporated into CIIR. The experimental results showed that the aliphatic C5 resin exhibited a better miscibility with CIIR, compared with aromatic C9 resin. With increase in the content of the C5 resin, the α process and the α′ process of CIIR moved to the higher temperature but to different extents, and the effective damping temperature range was broadened remarkably. The CIIR/C9 resin blends showed two loss peaks, which corresponded to the CIIR matrix and the C9 resin dispersed phase, respectively. The C9 resin neither moved different relaxation modes of CIIR to room temperature nor enhanced the value of the loss damping peak. © 2014 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131 , 40464.