| English Abstract |
| Coordination Crosslinking of Acrylonitrile-Butadiene Rubber and its Properties
Fei SHEN1, Xiao-fang YUAN1, Wei-hong GUO1, Hideshi YANAGI1,2 Chi-fei WU1 1 Polymer Alloy Laboratory, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China 2 Bridgestone Co., Kodaira, Tokyo , Japan Nippon Gomu Kyokaishi,(2008),81(8),323-328 Original Paper in Japanese Abstract A novel vulcanization method, vulcanization through metal coordination crosslinking, is developed. In this method copper sulfate (CuSO4) particles are simply incorporated into acrylonitrile-butadiene rubber (NBR), and no other vulcanizing agent nor additional additives are involved. It is totally different from traditional covalent or non-covalent vulcanization approaches of rubber. The crosslinking of CuSO4 particles filled NBR was induced by in situ coordination between nitrogen atoms of nitrile groups (-CN) and copper ions (Cu2+) from CuSO4. Several factors including heating temperature and time, the contents of CuSO4 and nitrile groups were investigated in this paper. The generation of a core (CuSO4 solid particle) - shell (adherent NBR) structure leads to the excellent mechanical properties of the coordination vulcanizates. (Received on August 23, 2007) Keywords: Coordination, Crosslink Network, Metal Ion, Nitrile Rubber, Vulcanization |
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