外绝缘用高温硫化硅橡胶和液态硅橡胶性能比较  

Performance comparison of high temperature vulcanized silicone rubber and liquid silicone rubber for external insulation

作　　者：谭向宇 周年荣 钱国超 王达达 徐肖伟 TAN Xiangyu;ZHOU Nianrong;QIAN Guochao;WANG Dada;XU Xiaowei(Power Science Research Institute of Yunnan Power Grid Co.,Ltd.,Kunming 650217,China)

机构地区：[1]云南电网有限责任公司电力科学研究院,云南昆明650217

出　　处：《绝缘材料》2024年第11期87-92,共6页Insulating Materials

基　　金：云南省基础研究专项重点项目(202301AS070028);云南省揭榜制项目(202104BN050011);中国南方电网科技项目(YNKJXM20210075)。

摘　　要：高温硫化(HTV)硅橡胶绝缘子和液态硅橡胶(LSR)绝缘子广泛应用于电力系统输电线路上。为比较典型配方下外绝缘用HTV硅橡胶和LSR材料的性能差异,对二者的力学性能、电气性能、憎水性进行研究。结果表明:LSR相比于HTV硅橡胶具有更好的力学性能和电气性能;HTV硅橡胶和LSR的初始憎水特性相差不大;LSR的结晶温度低于HTV硅橡胶,热稳定性高于HTV硅橡胶,说明LSR更适于在低温或者高温户外环境中运行。High temperature vulcanized(HTV)silicone rubber insulators and liquid silicone rubber(LSR)insulators are widely used in power system transmission lines.In order to compare the performance differences of HTV silicone rubber and LSR material for external insulation under typical formulas,the mechanical properties,electrical properties,and hydrophobicity of the two materials were tested.The results show that LSR has better mechanical and electrical properties than HTV silicone rubber.The initial hydrophobicity characteristics of HTV silicone rubber and LSR are similar.The crystallization temperature of LSR is lower than that of HTV silicone rubber,and the thermal stability is higher than that of HTV silicone rubber,which indicates that LSR is more suitable for operation in low temperature or high temperature outdoor environment.

关 键 词：高温硫化硅橡胶 液态硅橡胶 力学性能 电气性能 热稳定性 

分 类 号：TM211[一般工业技术—材料科学与工程]