环氧树脂纳米复合电介质电气性能研究进展

环氧树脂凭借优异的绝缘性和经济性已被广泛应用于电气电子和光电信息等领域，纳米掺杂对改善环氧树脂的介电强度、耐电晕性、耐电痕化、导热性、耐低温性、耐辐射性和耐候性等方面具有重要意义。本文详细论述了环氧树脂纳米复合材料的研究进展，包括掺杂不同种类纳米颗粒如二氧化硅、二氧化钛、氧化铝、氧化镁等对改善环氧树脂的介电性能、空间电荷行为等主要电气性能的影响，以及纳米复合电介质中界面区域的影响机理，并对纳米颗粒表面改性的方法及其对环氧树脂复合电介质电气绝缘性能的影响进行分析。

Research Progress on Electrical Insulation Properties of Epoxy Nanocomposite

Epoxy resin has been widely used in electrical and electronic information fields due to its excellent insulation and economic performance. The nanoparticles-adulterated epoxy can enhance its insulation properties, including the dielectric strength, the corona resistance, the tracking resistance, the thermal conductivity, the low temperature resistance, the radiation resistance and the weather resistance. In this paper, the research progress of epoxy resin nanocomposites is discussed in detail, including the doping of different kinds of nano-particles such as silica, titania, alumina, magnesia, etc. to improve the dielectric properties and space charge behavior of epoxy resin, and the influence mechanism of the interface region in the nanocomposite dielectrics is analyzed. The method of surface modification of nanoparticles and its influence on the electrical insulation properties of epoxy composite dielectric are analyzed.