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.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |