中国塑料2017，Vol.31Issue(11)：35-40,6.DOI:10.19491/j.issn.1001-9278.2017.11.005
填料形状对聚酰胺6基复合材料导热性能的影响
Effect of Filler Shape on Thermal Conductivity of Polyamide
摘要
Abstract
Thermally conductive polyamide 6 (PA6)-based composites were prepared through a melt-blending method by use of expanded graphite (EG),boron nitride (BN),Al2O3,and zinc oxide whiskers (T-ZnOw) as functional fillers,and effect of filler shape on thermal conductivity of the composite was investigated.Furthermore,EG was used as a major thermally conductive filler to compound respectively with BN,Al2O3 and T-ZnOw so as to confirm the role of filler type in the improvement of thermal conductivity of the composites.The results indicate that EG had a better enhancing effect on the thermal conduction of PA6 matrix than the other three.As a small-size filler,Al2O3 can help to open the layers of the lamellar EG,thus forming a more perfect thermally conductive network and leading to a better synergistic effect accordingly.PA6-matrix composites achieved a maximum thermal conductivity of 3.05 W/(m · K) by 7.5 vol ％ of BN,3.10 W/(m ·K) by 5 vol ％ of Al2O3 and 2.84 W/(m · K) by 2.5 vol ％ of T-ZnOw in the mixed fillers with a total volume fraction of 20 vol ％.关键词
聚酰胺6/膨胀石墨/填料/复配/热导率Key words
polyamide 6/expanded graphite/filler/compound/thermal conductivity分类
化学化工引用本文复制引用
郝鲁阳,温变英,张宜鹏..填料形状对聚酰胺6基复合材料导热性能的影响[J].中国塑料,2017,31(11):35-40,6.基金项目
北京工商大学高分子功能薄膜创新团队资助项目(19008001071) （19008001071）
