摘要
为研究微、纳米氧化铝无机颗粒对环氧树脂导热性能和电性能的影响,制备出了不同含量微/纳米氧化铝/环氧树脂复合材料。结果表明:纳米氧化铝提高了环氧树脂的击穿强度,而微米氧化铝则降低了击穿强度。环氧树脂的热导率随着氧化铝含量的增加而增大,纳米氧化铝因氧化铝颗粒与环氧树脂之间的高热阻而对环氧树脂热导率影响相对较小。
To study the effects of micro-alumina and nano-alumina inorganic particles on the thermal con- ductivity and electrical properties of epoxy resin, micro-alumina and nano-aluminafepoxy resin composites with various micro-size and nano-size alumina contents were prepared. The results show that the nano-alu- mina enhances the breakdown strength of the epoxy resin while micro-alumina reduces it. The thermal conductivity of the epoxy resin increases with the increase of the alumina contents. Because of the high thermal resistance between nano-alumina and epoxy resin, the effects of the nano-alumina on the thermal conductivity of the epoxy resin are comparatively smaller.
出处
《绝缘材料》
CAS
北大核心
2013年第2期49-52,共4页
Insulating Materials
基金
国家自然科学基金项目(51007057)
关键词
纳米氧化铝
微米氧化铝
击穿强度
环氧树脂
热导率
nano-alumina
micro-alumina
breakdown strength
epoxy resin
thermal conductivity
