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文章编号： 16726987（2018）02009305； DOI： 10.16351/j.16726987.2018.02.015
马连湘， 程凯， 何燕*， 宋君萍
(青岛科技大学 机电工程学院，山东 青岛 266061)
摘要： 以高密度聚乙烯和聚丙烯为基体材料，以碳纳米管和氮化硼颗粒为导热填料，通过熔融共混法制备了导热聚乙烯/聚丙烯复合材料；研究了聚乙烯和聚丙烯不同配比对复合材料力学性能和导热率的影响，同时探究了碳纳米管和氮化硼颗粒的配比对聚乙烯/聚丙烯复合材料力学性能、导热率、流动性、耐热性的影响。结果表明：复合材料的导热率随聚丙烯含量的增加而降低；当碳纳米管和氮化硼质量比为7∶3时，复合材料导热率最高，与不加导热填料的复合材料相比提高了3046%。
关键词： 高密度聚乙烯； 聚丙烯； 碳纳米管； 氮化硼； 导热率
中图分类号： TQ 33文献标志码： A
引用格式：马连湘， 程凯， 何燕， 等. 导热聚乙烯/聚丙烯复合材料性能研究\[J\]. 青岛科技大学学报（自然科学版）， 2018， 39（2）： 9397.
MA Lianxiang, CHENG Kai, HE Yan， et al. Study on properties of thermally conductive polyethylene/polypropllene composite\[J\]. Journal of Qingdao University of Science and Technology（Natural Science Edition), 2018, 39(2)： 9397.
Study on Properties of Thermally Conductive Polyethylene/
Polypropllene Composite
MA Lianxiang, CHENG Kai, HE Yan, SONG Junping
(College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061,China)
Abstract: High density polyethylene and polypropylene as matrix material, carbon nanotubes and boron nitride particles as conductivefiller were chosen to prepare a thermal conductive PE/PP composite material by melt blending method. The effects of different ratio of polyethylene and polypropylene on the mechanical properties and thermal conductivity of the composites were studied. Meanwhile, the effects of the ratio of carbon nanotubes and boron nitride particles on the mechanical properties, thermal conductivity, flow properties and heat resistance of PE/PP composites were explored. The results showed that the thermal conductivity of the composites decreased with the increase of the content of polypropylene, and when the mass ratio of carbon nanotubes and boron nitride was 7∶3, the thermal conductivity of the composites was the highest, and the composite materials were improved by 3046% compared with the composites without the thermal conductivity fillers.
Key words: high density polyethylene; polypropylene; carbon nanotubes; boron nitride; thermal conductivity
收稿日期： 20161123
基金项目： 绿色轮胎与橡胶协同创新开放课题项目（2015GTR0018）.
作者简介： 马连湘(1962—)，男，博士，教授，博士生导师.*通信联系人.
