| 乙炔炭黑填充VMQ/EPDM共混导电橡胶的流变性能和结构分析 |
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| 引用本文： | 陈福林,岑兰,周彦豪,李建华,彭浩焜.乙炔炭黑填充VMQ/EPDM共混导电橡胶的流变性能和结构分析[J].橡胶工业,1996,43(12):707-712. |
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| 作者姓名： | 陈福林 岑兰 周彦豪 李建华 彭浩焜 |
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| 作者单位： | 广东工业大学材料科学工程系，广州第六橡胶厂 |
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| 摘 要： | 用孟山都流交仪测定了不同共混比的甲基乙烯基硅橡胶（ＶＭＱ）／ＥＰＤＭ共混混炼胶的流变性能；用网笼法测定了炭黑在共混体系两相中的比例；研究了薄通次数对共混硫化胶体积电阻率的影响；用透射电镜观察了硫化胶的形态。根据试验结果得出：适当并用比和炭黑填充量的ＶＭＱ／ＥＰＤＭ共混硫化胶具有高导电性的原因是：两相粘度相差较大，共混体系为明显的“海－岛”结构，而且炭黑在共混体系两相中的浓度不同；具有高导电性及其加工稳定性的ＶＭＱ／ＥＰＤＭ共混导电橡胶的最佳并用比例为８０／２０—７０／３０。
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| 关 键 词： | 乙炔炭黑，硅橡胶，EPDM，导电橡胶，共混，流变性能 |
Rheologlcal Properties and Structure Analysis or VMQ/EPDM Conducttve Blends Filled with Acetylene Carbon Black |
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| Chen Fulin,Cen Lan,Zhou Yanhao,Li Jianhua and Peng Haokun.Rheologlcal Properties and Structure Analysis or VMQ/EPDM Conducttve Blends Filled with Acetylene Carbon Black[J].China Rubber Industry,1996,43(12):707-712. |
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| Authors: | Chen Fulin Cen Lan Zhou Yanhao Li Jianhua and Peng Haokun |
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| Affiliation: | Chen Fulin; Cen Lan and Zhou Yanhao (Guangdong University of Technology 510090) Li Jianhua and Peng Haokun (Guangzhou No. 6 Rubber Factory 510160) |
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| Abstract: | The rheological properties of VMQ/EPDM compounds with different blending ratio were determined by Monsanto rheometer; the proportions of carbon black in two phases of blends were determined by net-cage extraction; the influence of mill run number on the bulk resistance of blend vulcanizates was investigated; the morphology of vulcanizates was studied by TEM. The results showed that the VMQ/EPDM vulcanizates with proper blending ratio and carbon black level possessed high conductivity because of their obvious "sea-island" structure with quite different viscosity and carbon black proportion in two phases of blends;the VMQ/EPDM blends with a blending ratio of 80/20-70/30 showed the optimum conductivity and processibility. |
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| Keywords: | acetylene carbon black silicone rubber EPDM conductive rubber blend rheology |
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