Improved thermal conductivity and breakdown strength of PVDF-based composites by improving the dispersion of BN
作者机构：School of Materials Science and EngineeringShaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic MaterialsShaanxi University of Science and TechnologyXi'anChina
出 版 物：《High Voltage》 (高电压（英文）)
年 卷 期：2022年第7卷第3期
页 面：595-605页
核心收录：
学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学]
基 金：National Natural Science Foundation of China,Grant/Award Number:51572160 National Key Research and Development Program of Shaanxi Province,Grant/Award Number:2021GY-224 Graduate Innovation Fund of Shaanxi University of Science and Technology
主 题：composites conductivity strength
摘 要：In order to adapt to the development of electronic devices,it is necessary to improve the thermal conductivity and breakdown strength of *** nitride(BN)is an ideal candidate material with high breakdown strength and thermal ***-fore,the introduction of BN nanosheets into the polyvinylidene fluoride(PVDF)matrix can improve the thermal conductivity and breakdown strength of the composites at the same ***,BN nanosheets can easily agglomerate in the matrix,which limits the improvement of the properties of the *** overcome this difficulty,appropriate water-bath heating was used to improve the fluidity of ***,the dispersion of the filler is *** the volume fraction of BN nanosheets is 3%and the preparation temperature is 45℃,the energy storage density of the compos-ites reached 18.5 J/cm^(3) at 540 kV/*** this point,the thermal conductivity was 0.49 W/(m⋅K),3.5 times that of the pure PVDF film.
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