| 含支链型端乙烯基硅油室温固化灌封硅橡胶性能研究 |
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| 引用本文： | 吕晓峰,陈双俊,张军. 含支链型端乙烯基硅油室温固化灌封硅橡胶性能研究[J]. 材料导报, 2009, 23(16) |
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| 作者姓名： | 吕晓峰 陈双俊 张军 |
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| 作者单位： | 南京工业大学材料科学与工程学院,南京,210009 |
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| 基金项目： | 2007年国防科工委民口配套项目 |
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| 摘 要： | 采用粘度为1500mPa·s(401-1500)、7000mPa·s(401-7000)的直链型和粘度为4800mPa·s(411-4800)的支链型端乙烯基硅油复配体系作为灌封硅橡胶的基础胶,筛选出较好的基础胶配比,并以沉淀法和气相法白炭黑进行补强,研究了不同用量和品种的白炭黑补强对灌封材料粘度、力学性能、粘接性能和电学性能的影响.结果表明,当基础胶配比为m(401-1500):m(401-7000):m(411-4800)=100:20:15时,灌封胶粘度适中且固化后力学性能较好;当沉淀法白炭黑用量为25phr时,胶料粘度为48500mPa·s,拉伸强度达到最大值2.27MPa,剪切强度达到3MPa以上,电学性能优良,具有较好的综合性能.
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| 关 键 词： | 端乙烯基硅油 室温固化 灌封 硅橡胶 力学性能 电学性能 |
Investigation on Properties of Room Temperature Vulcanized Encapsulating Silicone Rubber Containing Branched Vinyl End Silicone Oil |
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| LU Xiaofeng,CHEN Shuangjun,ZHANG Jun. Investigation on Properties of Room Temperature Vulcanized Encapsulating Silicone Rubber Containing Branched Vinyl End Silicone Oil[J]. Materials Review, 2009, 23(16) |
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| Authors: | LU Xiaofeng CHEN Shuangjun ZHANG Jun |
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| Affiliation: | LU Xiaofeng,CHEN Shuangjun,ZHANG Jun(College of Materials Science , Technology,Nanjing University of Technology,Nanjing 210009) |
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| Abstract: | Two kinds of vinyl end silicone oil of different viscosities and one branched vinyl silicone oil blends are chosen as encapsulating silicone rubber.Ratio of silicone oil blending is optimized to endow silicone rubber with improved performance.Optimum base is filled with different amount of precipitated silica and aerosilica for reinforcement,and the effect of variety and amount of silica on viscosity,mechanical properties,shear strength and electrical properties is investigated.The results show that encapsu... |
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| Keywords: | vinyl end silicone oil room temperature vulcanized encapsulating silicone rubber mechanical properties electrical properties |
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