聚偏氟乙烯基复合材料导热性能的研究进展
Research progress on thermal conductivity of polyvinylidene fluoride composites
李坤鹏 1焦文玲 1何丽萍 1白俊垒 1屈怡婷 1张骁骅 2丁彬2
作者信息
- 1. 东华大学 纺织学院,上海 201620
- 2. 东华大学 纺织科技创新中心,上海 201620
- 折叠
摘要
导热复合材料在电子封装、电机材料、电池及换热设备等领域具有广泛的应用价值.聚偏氟乙烯(PVDF)具有优异的电气性能、良好的机械强度和耐高温性能,是应用于电子电器、航空航天等行业的理想材料之一,但较低的热导率制约其进一步发展,亟待开发PVDF基高导热复合材料.其制备的关键在于如何选择高导热填料、设计导热通路及调控界面热阻.本文在聚合物基导热复合材料的机制、模型、方程及数值模拟等理论知识的基础上,结合PVDF自身晶体结构,介绍目前PVDF基导热复合材料热导率的发展水平,各种填料及制备工艺对其热导率的不同影响程度等内容,从复合策略、网络结构、界面结合等角度综述了高导热PVDF复合材料的最新研究进展.此外,对其未来发展也进行了展望.
Abstract
Thermal conductive composites have a wide range of applications in the fields of electronic packaging,motor materials,batteries and heat exchange equipment.Polyvinylidene fluoride(PVDF)has excellent electrical properties,good mechanical strength and high temperature resistance.It is one of the ideal materials for applica-tions in electronics,aerospace and other industries.However,the low thermal conductivity restricts its further development.It is urgent to develop PVDF-based high thermal conductivity composites.The key to its preparation is how to select high thermal conductivity fillers,design thermal conduction pathways,and regulate interface thermal resistance.Based on the theoretical knowledge of the mechanism,model,equation and numerical simula-tion of polymer-based thermal conductive composites,combined with the crystal structure of PVDF,this paper introduces the current development level of thermal conductivity of PVDF-based thermal conductive composites,and the different effects of various fillers and preparation processes on their thermal conductivity.The latest research progress of high thermal conductivity PVDF composites is reviewed from the perspectives of composite strategy,network structure and interface bonding.In addition,its future development is also prospected.
关键词
聚偏氟乙烯/复合材料/导热填料/导热通路/界面结构Key words
polyvinylidene fluoride/composite materials/thermal conductive filler/heat conduction pathway/interface structure引用本文复制引用
基金项目
中央高校基本科研业务费专项(2232021G-01)
上海市青年科技英才"扬帆计划"项目(21YF1400900)
国家自然科学基金青年科学基金(52103280)
上海市晨光计划(21CGA39)
出版年
2024
NETL
NSTL
维普
万方数据