一种SIR/P-SIR共混防雷复合材料制备及应用性能  

Preparation and application performance of a SIR/P-SIR blended lightning protection composite

作　　者：孔金良 杨介立 易伟峰 高国青 刘永胜 范晓飞 KONG Jinliang;YANG Jieli;YI Weifeng;GAO Guoqing;LIU Yongsheng;FAN Xiaofei(Huaneng Renewables Corporation Limited Shanxi Branch,Taiyuan 030000,China)

机构地区：[1]华能新能源股份有限公司山西分公司,山西太原030000

出　　处：《粘接》2024年第12期98-101,共4页Adhesion

摘　　要：为增强多腔吹弧防雷装置材料的综合性能,以甲基乙烯基硅橡胶(SIR)和苯基硅橡胶(P-SIR)为橡胶原料,以氢氧化铝为绝缘填料,加入到白炭黑中,制备了一种SIR/P-SIR硅橡胶复合材料,并对其性能进行研究。试验结果表明,纯SIR复合材料和纯P-SIR复合材料的正硫化时间t90分别为4.61、6.32 min,SIR和P-SIR共混时材料的硫化特性良好;试验以SIR和P-SIR含量比例90/10制备SIR/P-SIR硅橡胶复合材料,该材料的拉伸强度为7.4 MPa,拉伸断裂率为198%,材料的交联密度为2.43×10^(-4)mol/cm^(3),绝缘性能良好,且该材料用于多腔吹弧防雷装置中时,装置能在10 ms内将电流遮断,使电弧不再燃烧,也未重燃。In order to enhance the comprehensive performance of multi chamber arc blowing lightning protection device materials,a SIR/P-SIR silicone rubber composite material was prepared by using methyl vinyl silicone rubber(SIR)and phenyl silicone rubber(P-SIR)as rubber raw materials,aluminum hydroxide as insulating filler,and added to silica,and its properties were studied.The experimental results showed that the positive vulcanization time t_(90)of pure SIR composite material and pure P-SIR composite material were 4.61 min and 6.32 min,respectively.The vulcanization characteristics of the material were good when SIR and P-SIR were blended.In this study,SIR/P-SIR silicone rubber composites were prepared with the ratio of SIR and P-SIR content of 90/10,the tensile strength of the material was7.4MPa,the tensile fracture rate was198%,and the crosslinking density of the material was 2.43×10^(-4)mol/cm^(3),with good insulation performance.When the material was used in multi-cavity arc blowing lightning protection devices,the device could cut off the current within 10ms,and the arc would no longer burn or reignite.

关 键 词：甲基乙烯基硅橡胶 苯基硅橡胶 SIR/P-SIR共混 防雷 

分 类 号：TQ317[化学工程—高聚物工业]