聚合物纳米纤维基各向异性导热复合材料的研究进展OA

As electronic components become increasingly intelligent,lightweight,and integrated,the power density of electronic equipment increases dramatically.The development of high-performance thermally conductive composites has thus become critically important.One-dimensional polymer nanofibers are conducive to the effective connection of thermally conductive fillers in the axial direction and promote the formation of effective thermal conductivity paths between adjacent thermally conductive fillers.Consequently,when the same content of fillers is added in polymer matrix,these kind of anisotropic composites usually exhibit superior thermal conductivity,which has attracted widespread attention from researchers.This paper systematically summarizes the research progress of polymer nanofiber-based anisotropic thermally conductive composites including cellulose nanofibers,aramid nanofibers,poly-paraphenylene benzobisoxazole nanofibers,and electrospun nanofibers,and discusses the regulation effect of low-dimensional thermally conductive fillers on the properties of polymer nanofiber-based composites.Finally,the challenges and future development directions of nanofiber-based thermally conductive composites are prospected.