填充型导热聚对苯二甲酸丁二酯复合材料研究进展

Research Progress on Filled Thermally Conductive PBT Composites

综述了近年来填充型导热聚对苯二甲酸丁二酯(PBT)复合材料的研究进展,重点讨论了氮化物、碳材料及氧化物等导热填料对PBT复合材料热导率的影响。总结了提高填充型PBT复合材料热导率的途径,包括改变导热填料粒子的形状及分布、不同粒径及不同粒子混杂填充、粒子表面改性及改变复合材料加工成型方式。未来填充型导热PBT复合材料将围绕着导热填料表面处理新方法、导热填料与树脂基体界面优化、新型加工技术对导热填料在基体中的结构和导热通路调控进行研究。

The research progress on thermal conductive polybutylene terephthalate(PBT)composites filled with thermally conductive particles was summarized and the effects of thermal conductive fillers such as nitrides,carbon materials and oxides on the thermal conductivity of PBT composites were mainly discussed.The ways to improve the thermal conductivity of filled PBT composites were summarized,including changing the shape and distribution of thermal conductive filler particles,different particle sizes and different particle hybrid filling,particle surface modification and changing the processing method of composites.The fu-ture filled thermal conductive PBT composites will focus on the new methods of surface treatment of thermal conductive fillers,the optimization of the interface between thermal conductive fillers and resin matrix,and the new processing technology to study the structure of thermal conductive fillers in the matrix and the control of thermal conductive path.