文献类型：期刊文献

英文题名：Highly thermally conductive boron nitride@UHMWPE composites with segregated structure

作者：Wu, Xian Liu, Wei Ren, Li Zhang, Chun

第一作者：吴显

通信作者：Wu, X[1];Wu, X[2]|[1444079a3983e896b4cb6]吴显;

机构：[1]Guizhou Inst Technol, Sch Mat & Energy Engn, Guiyang 550003, Peoples R China;[2]Guizhou Inst Technol, Key Lab Light Met Mat Proc Technol Guizhou Prov, Guiyang 550003, Peoples R China

第一机构：贵州理工学院

通信机构：corresponding author), Guizhou Inst Technol, Sch Mat & Energy Engn, Guiyang 550003, Peoples R China;corresponding author), Guizhou Inst Technol, Key Lab Light Met Mat Proc Technol Guizhou Prov, Guiyang 550003, Peoples R China.|贵州理工学院;

年份：2020

卷号：20

期号：1

起止页码：510-518

外文期刊名：E-POLYMERS

收录：;EI(收录号：20204309399751);Scopus(收录号：2-s2.0-85093657190);WOS:【SCI-EXPANDED(收录号:WOS:000575262300001)】；

基金：This work was supported by the National Natural Science Foundation of China (grant number 518630003 and 51703039), the Special Project of Cultivating New Academic Seedlings and Exploring Innovation for Guizhou Institute of Technology (grant number QianKeHe [2017]5789-03), the Guizhou Provincial Higher Education Engineering Research Center, China [Qian Jiao He KY (2017) 021], the Action Plan for Scientific Research Institutions Serve Enterprises in Guizhou Province [Qian Ke Fu Qi (2018) 4010], and the Research start-up Foundation for Advanced Talents of Guizhou Institute of Technology (grant number XJGC20190668).

语种：英文

外文关键词：boron nitride; thermal conductivity; segregated structure; polymer-matrix composites

摘要：Highly thermally conductive boron nitride (BN) @ultra-high molecular weight polyethylene (UHMWPE) composites with the segregated structure were fabricated by powder mixing and hot pressing. Scanning electron microscopy and polarizing optical microscopy were used to analyze the dispersion of BN particles in the UHMWPE matrix. The morphology observation shows that BN particles are selectively located at the interfaces of UHMWPE particles and form continuous thermally conductive networks after the compression molding process. As a result, the thermal conductivity of the BN@UHMWPE composite increases to 3.37 W m(-1) K-1 with 38.3 vol% BN, which is seven times larger than that of the pure UHMWPE. Furthermore, the incorporation of BN also influences the crystallinity and thermal properties of UHMWPE.