THEORETICAL AND EXPERIMENTAL EVALUATION OF THERMAL CONDUCTIVITY OF POLYIMIDE/SILICA COMPOSITE FILMS

摘要：

Laser flash technique and differential scanning calorimeter are utilized to measure thermal diffusivity and specific heat of polyimide/silica composite films with different silica contents in temperature range 20～160 ℃. Common prediction models are employed and compared with measured thermal conductivity of composite films. Results show that thermal conductivity increases with the increase of silica content, and increases with temperature rise. Different models are evaluated and the Sorin model considering filler size distribution fits better with experimental data.

关键词： polyimide/silica composite thin film thermal conductivity laser flash method

作者: An Cai Liping Yang Tonggeng Xi Jiangping Chen

作者单位: Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai, China, 200050 Institute of Refrigeration and Cryogenies Shanghai Jiao Tong University Shanghai, China, 200240

会议类型: 国际会议

会议名称: The Ninth Asian Thermophysical Properties Conference(第九届亚洲热物理性能会议 ATPC 2010)

会议地点: 北京

会议语种:英文

页码: 939-942

在线出版日期: 2010-10-19（万方平台首次上网日期，不代表论文的发表时间）