Electromagnetic interference shielding properties of wood-plastic composites filled with graphene decorated carbon fiber

摘要

Carbon fiber (CF), graphene oxide (GO)-deposited CF (GO-CF), and reduced GO-deposited CF (rGO-CF) were introduced into wood plastic composite (WPC). The electromagnetic interference (EMI) shielding effectiveness (SE) of WPC in the X-band region (8.2-12.4 GHz) was studied. The results showed that GO-CF and rGO-CF were more effective than CF in improving EMI SE of WPC. The rGO sheets were beneficial to the dispersion of CF in matrix and could build of a more effective electric network. The WPC with 4 wt% rGO-CF and a shielding thickness of 4 mm had the SE of 29 dB. Compared with the SE of WPC with CF (23 dB), WPC with rGO-CF had a 26% increase. The WPC filled with rGO-CF has a promising prospect in EMI shielding materials. POLYM. COMPOS., 39:2110-2116, 2018. (c) 2016 Society of Plastics Engineers