期刊
POLYMER
卷 52, 期 5, 页码 1337-1344出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2011.01.024
关键词
Ionic liquid; Halloysite nanotubes; Interface
资金
- National Natural Science Foundation of China [50873035, 50933001]
- Doctorate Foundation of South China University of Technology to Mr. Yanda Lei, Guangdong Natural Science Foundation [151008901000137]
- Fundamental Research for the Central Universities [2009ZZ0007]
- National High-tech R & D Program (863 Program) [2009AA03Z338]
Two kinds of thiol ionic liquids (ILs). 1-methylimidazolium mercaptopropionate (MimMP) and bis (1-methylimidazolium) mercaptosuccinate (BMimMS), were investigated as novel interfacial modifiers for styrene butadiene rubber/halloysite nanotubes (SBR/HNTs) composites. According to model compounds, it was found that their affinities toward HNTs were originated from hydrogen bonding and that they could be grafted onto SBR chains via thiol-ene reactions. The ILs addition could promote vulcanization and effectively facilitate HNTs dispersion in rubber matrix. The interfacial interaction, quantitatively evaluated by a proposed equation based on rubber elasticity and reinforcement theory, was consistently increased. Mechanical properties of SBR/HNTs vulcanizates were largely improved and better than those of the 3-mercaptopropyl trimethoxysilane modified system. The BMimMS's efficiency on modifying SBR/HNTs vulcanizates was higher than the other for its Gemini structure. Significantly mechanical improvements and lowered mechanical loss in the range of 50-80 degrees C were correlated to the improved HNTs dispersion and strengthened interfacial interactions. (C) 2011 Elsevier Ltd. All rights reserved.
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