文献类型：期刊文献

英文题名：Investigation on the coordination interfacial reaction by dynamical mechanical analysis

作者：Huang, Jianfeng[1]; Qian, Shengying[1]; Shen, Fei[1]; Wu, Chifei[1,2]

机构：[1] Polymer Alloy Laboratory, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, China; [2] Polymer Alloy Laboratory, School of Materials Science and Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China

年份：2007

卷号：47

期号：1

起止页码：52

外文期刊名：Journal of Macromolecular Science, Part B: Physics

收录：EI(收录号：20080311020803)

语种：英文

外文关键词：Coordination reactions - Crosslinking - Dynamic mechanical analysis - Isotherms - Rubber - Surface chemistry

摘要：Cross-linking behavior of acrylonitrile butadiene rubber (NBR)/copper sulfate (CuSO4) and NBR/cobalt dichloride (CoCl2) composites were investigated by dynamic mechanical analysis (DMA) under nonisothermal and isothermal modes. In the nonisothermal test, a comparison among the NBR/CuSO4, NBR/CoCl2 and NBR/sulfur revealed that coordination cross-linking of CuSO4-NBR and CoCl2-NBR happened. The isothermal test helped in further understanding of the two reaction processes in the coordination cross-linking system through analysis of the differential curves of storage modulus G'. Moreover, the nonlinear effect at small strains, generally referred to as the Payne effect, was investigated in the NBR/CuSO4 compounds based on different heat press times from 0 to 40min. The increasing of G' suggested that the NBR/CuSO4 compound became highly cross-linked, producing a strong filler-polymer interaction, with prolonged heat press time.