氧化铝粒子填充环氧基复合材料导热性能的研究  

Thermal Conductivity of Epoxy Resin Composite Filled by Al_2O_3

作　　者：施萍 徐燕婷 黄同胜 朱建中 孙岳 Shi Ping Xu Yanting Huang Tongsheng Zhu Jianzhong Sun Yue(Zhejiang Rongtai Technology Industrial Co., Ltd., Jiaxing 314007, China)

机构地区：[1]浙江荣泰科技企业有限公司,浙江嘉兴314007

出　　处：《绝缘材料》2017年第3期6-9,共4页Insulating Materials

摘　　要：以Al_2O_3为导热填料制备了填充型环氧基复合材料,研究了其导热系数与氧化铝粉体的填充量、粒径和形状之间的关系。结果表明:复合材料的导热系数随着氧化铝填充量的增加而增大,当氧化铝填充量较低时,导热系数随填料粒径的增加而增大;当氧化铝填充量较高时,导热系数随填料粒径的增加而减小。通过复配填充的方法最终获得了导热系数大于1.10 W/(m·K)且黏度适宜的环氧基复合材料。An epoxy resin composite was prepared using Al2O3 as filler, and the effect of content, particle size, and shape of Al2O3 on the thermal conductivity of the composite was studied. The results show that the thermal conductivity of the composite increases with the increase of Al2O3 content. When the A1203 content is low, the thermal conductivity increases with the increase of particle size; when the Al2O3 content is high, the thermal conductivity decreases with the increase of particle size. Finnally, an Al2O3-filled epoxy resin composite with thermal conductivity more than 1.10 W/（m.K） and appropriate viscosity is prepared through compound filling.

关 键 词：环氧树脂 氧化铝 导热系数 黏度 

分 类 号：TM215[一般工业技术—材料科学与工程]