BN/PA66导热复合材料制备与研究  

Study on preparation and property of thermal conductive composite of BN/PA66

作　　者：刘涛[1] 余雪江[1] 芦艾[1] 贺江平[1] 余凤湄[1] 王宪忠[1] 

机构地区：[1]中国工程物理研究院化工材料研究所,绵阳621900

出　　处：《化工新型材料》2012年第6期145-147,共3页New Chemical Materials

基　　金：化工材料研究所2010年度所长基金(626010940)

摘　　要：采用熔融挤出法制备了BN/PA66导热复合材料,通过导热性能测试、力学性能测试、耐热性能测试和DSC等方法研究了BN含量对BN/PA66复合材料的导热性能、力学性能、耐热性能和结晶性能等的影响。结果表明:在实验范围内,当BN体积分数达到24.8%时,BN/PA66复合材料导热系数λ为0.751W/(m.K),约为纯PA66的2.2倍。随BN含量增加,BN/PA66复合材料刚性增加,其热形变温度大幅度提高。A series of composite of BN/PA66 were prepared by twin--screw extruder. By means of thermal conduc- tion measure, mechanical property measure, DSC and so on, the effect of content of BN on thermal conductive behavior, me- chanical, crystal properties and heat-durability were researched, respectively. The results showed that in range of measure, the composite of PA66 with 24. 8% BN reached to the maximal coefficient of thermal conductivity（X= 0. 75 t W/（m K））, which was about 2. 2 times higher that of pure PA66. With incrwesing of the content of BN, the rigidity and heat--durabili- ty of the composite increased.

关 键 词：尼龙66 氮化硼 复合材料 导热系数 力学性能 

分 类 号：TB332[一般工业技术—材料科学与工程]