| BN/聚砜导热绝缘复合材料的制备及性能 |
| |
| 引用本文： | 杨文彬,张凯,杨序平,白进伟,周元林.BN/聚砜导热绝缘复合材料的制备及性能[J].四川建材学院学报,2011(1):24-27. |
| |
| 作者姓名： | 杨文彬 张凯 杨序平 白进伟 周元林 |
| |
| 作者单位： | [1]西南科技大学四川省非金属复合与功能材料重点实验室,四川绵阳621010 [2]西南科技大学材料科学与工程学院,四川绵阳621010 [3]中国工程物理研究院总体工程研究所,四川绵阳621900 |
| |
| 基金项目： | 国家自然科学基金资助项目（10876033） |
| |
| 摘 要： | 采用粉末混合法制备了BN/聚砜导热绝缘复合材料,用扫描电子显微镜（SEM）、导热系数测试仪和超高电阻微电流测试仪对复合材料的微观形貌、导热性能和电绝缘性能进行了表征。结果表明：硅烷偶联剂改性处理后的BN粉体与聚砜基体之间的相容性较好;BN/聚砜复合材料的导热系数随BN含量的增加而增大,最大可达2.08（W·m^-1·K^-1）;表面电阻率和体积电阻率随BN含量的增加而减小,最低值分别为0.82×10^15Ω和1.78×10^15（Ω·cm）,具有电绝缘性。
|
| 关 键 词： | 氮化硼 聚砜 复合材料 导热性能 电绝缘性能 |
Study on Preparation and Property of Thermally Conductive and Electrically Insulating BN/polysulfone Composites |
| |
| Authors: | YANG Wen-bin ZHANG Kai YANG Xv-ping BAI Jin-wei ZHOU Yuan-lin |
| |
| Affiliation: | 1.State Key Laboratory Cultivation Base for Nonmetal Composites and Functional Materials,Southwest University of Science and Technology,Mianyang 621010,Sichuan,China;2.School of Materials Science and Engineering,Southwest University of Science and Technology,Mianyang 621010,Sichuan,China;3.Institute of System Engineering,China Academy of Engineering Physics,Mianyang 621900,Sichuan,China) |
| |
| Abstract: | Thermally conductive and electrically insulating BN/polysulfone composites were prepared by powder mixture method.Microstructures,thermal conductivity and electrical insulation of BN/polysulfone composites were characterized by scanning electron microscopy（SEM）,thermal conductivity test and ultra-high resistivity test,respectively.The results show that there is good compatibility between polysulfone matrix and BN fillers,which have been treated by silicone coupling agent.Thermal conductivity of BN/polysulfone composites is increased with the increasing of BN content,the maximum value of which is 2.08（W·m^-1·K^-1）.Surface resistivity and volume resistivity of BN/polysulfone composites are decreased with the increasing of BN content,the minimum values of which are 0.82×10^15 Ω and 1.78×10^15（Ω·cm）. |
| |
| Keywords: | BN Polysulfone Composite Thermal conductivity Electrical insulation |
| 本文献已被 维普 等数据库收录！ |
|
