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Thermal aging on mechanical properties and crosslinked network of natural rubber/zinc Dimethacrylate composites
Author(s) -
Xu Chuanhui,
Chen Yukun,
Huang Jing,
Zeng Xingrong,
Ding Jianping
Publication year - 2011
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.35286
Subject(s) - materials science , composite material , thermal stability , natural rubber , ultimate tensile strength , vulcanization , tear resistance , composite number , thermogravimetric analysis , zinc , polyimide , thermal , chemistry , organic chemistry , physics , layer (electronics) , meteorology , metallurgy
Abstract This article dealt with the relationship between mechanical properties and crosslinked networks of natural rubber (NR) reinforced by zinc dimethacrylate (ZDMA) after thermal aging. After thermal aging at the present experimental conditions, the covalent crosslink density showed a decrease all the time, whereas the ionic crosslink density was stable at 80°C but decreased at a higher temperature. The decrease in the total crosslink density after aging indicates the degradation of the crosslinked network. However, an experimental phenomenon observed was that the tensile strength and tear strength increased in a certain degree after aging at 80°C or at a 100°C for a short time. In addition, the thermal stability of the NR/ZDMA composite was evaluated by thermal gravimetric analysis. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012