超细AlN填充聚烯烃树脂基复合材料性能研究  

Research on Property of Polyolefin Composites Filled with Superfine Aluminium Nitride

作　　者：章家立[1] 陈波[1] 何剑峰[1] 王祥吉[1] 

机构地区：[1]华东交通大学化学化工系,南昌330013

出　　处：《工程塑料应用》2014年第5期15-19,共5页Engineering Plastics Application

基　　金：国家自然科学基金项目(21164001);江西省教育厅科技基金项目(GJJ13359)

摘　　要：采用密炼的加工方式将高导热性超细氮化铝(AlN)粉末与聚乙烯(PE)和聚丙烯(PP)树脂混合形成复合材料,研究了复合材料的导热性能和力学性能与超细AlN粉末的填充量、偶联剂含量的关系。结果表明,AlN表面修饰后更能提高聚烯烃树脂基复合材料的导热性能,其中PP体系性能变化更显著;偶联剂含量也是影响复合材料的一个重要因素,当含量为5%时,两种复合材料的导热系数最大;复合材料的力学性能随AlN含量的增加先下降后上升,随偶联剂含量的增加先提高后降低。The polyethylene and polypropylene composites filled with superfine aluminium nitride（AIN） were prepared by banburying machine shaping.The effects of superfine AIN powder content and coupling agent content on the thermal conductivities and mechanical properties of composites were studied.The results show that the thermal conductivity of composite filled with surface modified AIN is higher than that of the unmodified AIN, and polypropylene system exhibits excellent thermal conductivity.The thermal conductivity appeared a maximum at 5% content of coupling agent.The mechanical properties of composites decrease at first and then increase with AIN content increasing, while they show opposite trend with coupling agent content increasing.

关 键 词：超细氮化铝 聚乙烯 聚丙烯 导热性 

分 类 号：TQ32[化学工程—合成树脂塑料工业]