填充型导热绝缘硅橡胶的研究进展

Progress of filled thermal conductive and electrical insulating silicone rubber

导热绝缘硅橡胶由于具有较高的热导率和电阻率,被广泛用于航天航空、电子通信、电气绝缘等领域。首先阐述了填充型导热绝缘硅橡胶的导热机理,进而介绍了填充零维填料、二维填料、杂化填料、构建三维导热网络以及改善硅橡胶与填料的界面对硅橡胶热导率的影响,并进一步提出导热绝缘硅橡胶存在的问题,展望其发展方向。

Because of its high thermal conductivity and electrical resistivity,thermal conductive and electrical insulating silicone rubber is widely used in many fields,such as aerospace,electronic communication and electrical insulation and so on.Firstly,the review describes the thermal conductivity mechanism of filled thermal conductive and electrical insulating silicone rubber composites,and introduces the effect of the incorporation of zero-dimensional fillers,two-dimensional fillers,hybrid fillers,the construction of three-dimensional thermal conductive networks and the improvement of the interface between silicone rubber and fillers on the thermal conductivity of silicone rubber.Secondly,we further propose the problems of thermal conductive and electrical insulating silicone rubber and look forward to its future development.