| BN/聚砜导热绝缘复合材料的制备及性能 |
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| 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].西南科技大学学报,2011,26(1). |
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| 作者姓名： | 杨文彬 张凯 杨序平 白进伟 周元林 |
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| 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;西南科技大学材料科学与工程学院,四川绵阳621010
2. 中国工程物理研究院总体工程研究所,四川绵阳,621900 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 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0.82×1015Ω和1.78×1015(Ω·cm),具有电绝缘性.
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| 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 |
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| YANG Wen-bin,ZHANG Kai,YANG Xv-ping,BAI Jin-wei,ZHOU Yuan-lin.Study on Preparation and Property of Thermally Conductive and Electrically Insulating BN/polysulfone Composites[J].Journal of Southwest University of Science and Technology,2011,26(1). |
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| Authors: | YANG Wen-bin ZHANG Kai YANG Xv-ping BAI Jin-wei ZHOU Yuan-lin |
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| Institution: | YANG Wen-bin1,2,ZHANG Kai3,YANG Xv-ping1,BAI Jin-wei1,ZHOU Yuan-lin1,2(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,3.Institute of System Engineering,China Academy of Engineering Physics,Mianyang 621900,China) |
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| 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/polysulfo... |
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| Keywords: | BN Polysulfone Composite Thermal conductivity Electrical insulation |
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