Viscosity and Thermal Conductivity of Alumina Microball/Epoxy Composites

摘要：

conductivity into a polymer is an effective way to enhance the thermal conductivity of the polymer. Alumina (Al2O3) microballs were chosen as the fillers to confirm whether their super-spherical structure would enlarge the maximum filling content of the filler into the polymer matrix. The impacts of Al2O3 microballs on the thermal conductivity of the composites and the viscosity of pre-curing suspension were investigated. The viscosity increased slightly when a 20 vol. % of Al2O3 microballs were filled, and when the filling content reached 50 vol. %, the viscosity was still relatively lower than that of the epoxy with roughly spherical AlN granules. A high thermal conductivity of 2.70 W/(m.K) was achieved with an Al2O3 microball content of 60 vol. %.

作者: Hui Yu Liangliang Li Longhao Qi

作者单位: Department of Materials Science and Engineering, Key Laboratory of Advanced Materials, Tsinghua Univ Department of Materials Science and Engineering, State Key Laboratory of New Ceramic and Fine Proces

会议类型: 国际会议

会议名称: 2011 12th International Conference on Electronic Packaging Technology & High Density Packaging(2011 电子封装技术与高密度封装国际会议)

会议地点: 上海

会议语种:英文

页码: 387-390

在线出版日期: 2011-08-08（万方平台首次上网日期，不代表论文的发表时间）