Integrated manufacturing of REciclable multi-material COmposites for the TRANSport sector
Anisotropically enhancing thermal conductivity of epoxy composite with a low filler load by an AlN/C fiber skeleton
Constructing a three-dimensional (3D) heat conduction skeleton has been considered as an effective method to efficiently enhance the thermal conductivity of polymer-based composites at a low filler load. Herein, a 3D thermal transport skeleton based on AlN/C was fabricated via the direct pyrolysis and carbothermic reduction reaction of vertically arranged biomass cotton fiber template, which was absorbed with aluminum resource. Thermal conductivity of the AlN/C-loaded epoxy composites with anisotropic thermal conductivity was greatly increased at a low filler load. The composite shows a high thermal conductivity of 0.49 W m-1 K-1 along the axial direction at a filler load of 12.4 wt%, which is 3.27 times of the pure epoxy resin, and also boasts a thermal conductivity of 0.33 W m-1K-1 along the lateral direction. This work provides a new idea for developing high-efficient thermal management with anisotropic design.
» Author: Zihe Chen, Chengzhi Zhao, Weijia Meng, Nan Sheng, Chunyu Zhu, Zhonghao Rao
This project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement Nº 768737
