导热硅脂高温稳定性评价研究  

Study on High Temperature Stability Evaluation of Thermal Conductive Silicone Grease

作　　者：刘建峰 邓智 谢晓霞 陈淑云 LIU Jianfeng;DENG Zhi;XIE Xiaoxia;CHEN Shuyun(Gree Electric Appliances Inc.,Zhuhai 519070,China)

机构地区：[1]珠海格力电器股份有限公司,广东珠海519070

出　　处：《有机硅材料》2024年第1期37-40,共4页Silicone Material

摘　　要：以5种市售导热硅脂(A、B、C、D、E)为研究对象,考察了其在常温、100℃处理720 h、150℃处理720 h条件下的性能差异。结果表明,常温条件下导热硅脂D的导热性能最高;100℃处理720 h后,导热硅脂C的热导率、热阻变化率最小,在100℃时稳定性最好;150℃处理720 h后,导热硅脂C出现硬化现象,在150℃时稳定性不佳,导热硅脂A、B、D、E稳定性较佳;在实践中应根据导热硅脂的服役环境合理选型。The performance differences of five commercially available thermal conductive silicone grease(A,B,C,D,E)were investigated under room temperature,100℃for 720 h or 150℃for 720 h,respectively.The results show that grease D has the highest thermal conductivity at room temperature.The high temperature stability of grease C treated at 100℃for 720 h is the best because of its small change in thermal conductivity and resistance,but it appears harden and poor stability at 150℃for 720 h.Grease A,B,D and E have good stability under the temperature of 150℃.Which grease shall be chosen depends on the service environment.

关 键 词：导热硅脂 热导率 高温稳定性 硬化 热阻 

分 类 号：TQ324.21[化学工程—合成树脂塑料工业]