中国塑料2017，Vol.31Issue(4)：6-10,5.DOI:10.19491/j.issn.1001-9278.2017.04.002
偶联剂对PA6/h-BN复合材料导热性能的影响及复合材料制备工艺优化
Influence of Coupling Agents on Thermally Conductive Properties of Polyamide 6/Boron Nitride Composites and Optimization for Their Preparation Technology
张玉清 1彭义波 1张旭浩 1付晓蓉 1刘正英2
作者信息
- 1. 四川大学化学工程学院,四川成都610065
- 2. 四川大学高分子科学与工程学院,四川成都610065
- 折叠
摘要
Abstract
Polyamide 6 (PA6)/boron nitride (h-BN) composites with a high thermal conductivity were prepared via melt compounding.A silane coupling agent,KH 550,and a titanate coupling agent,TM P,were used to enhance the interfacial adhesion between PA6 and h-BN and also improve the thermal conductivity.An orthogonal experiment was conducted to investigate the effects of the particle size of h-BN,the loading of h-BN and the amounts of coupling agents on the thermally conductive performance of composites.The results indicated that the optimum amounts of coupling agent used were 2.5 wt ％ and 1 wt％ for KH550 and TM-P,respectively,when the loading of h-BN was set to 20 vol ％.TM-P exhibits a better modification effect than KH 550,thus leading to a higher thermal conductivity.The thermal conductivity of composites showed an increase at first and then began to decline with an increase of h-BN loading,but the yield strength tend to decrease.The composites achieved much better mechanical properties when using TM-P as a coupling agent.An optimum processing condition was obtained as follows:the content of h-BN was set to 25 vol ％ and the particle size of h-BN was determined as 10 ～ 15 μm.Under thi scondition,the composites achieved a thermal conductivity of 2.446 W/(m · K).关键词
氮化硼/聚酰胺6/偶联剂/热导率Key words
boron nitride/polyamide 6/coupling agent/thermal conductivity分类
化学化工引用本文复制引用
张玉清,彭义波,张旭浩,付晓蓉,刘正英..偶联剂对PA6/h-BN复合材料导热性能的影响及复合材料制备工艺优化[J].中国塑料,2017,31(4):6-10,5.
