论文：Zhu, H., Fu, K., Huang, T., Liu, H., Yang, B., Zhou, Y., & Li, Y. (2024). Highly conductive CFRP composite with Ag-coated T-ZnO interlayers for excellent lightning strike protection, EMI shielding and interlayer toughness. Composites Part B: Engineering, 279, 111448.

简介：Improvement of overall electrical conductivities of carbon fiber reinforced polymer (CFRP) composite is a novel protection strategy to prevent them against lightning strikes (LS) damage. In this article, conductive CFRP composites with silver/tetra-needle zinc oxide (Ag/T-ZnO) as interlayers for LS protection, electromagnetic interference (EMI) shielding and interlaminar toughness improvement were developed. The results showed that the Ag/T-ZnO interlayers created a three-dimensional conductive network inside the unidirectional (UD) CFRP laminates, leading to 229.7 and 22.44 times greater transverse and in-depth electrical conductivity than those of the pristine CFRP composites, respectively. The simulated LS experimental results demonstrated the LS protection effectiveness of the Ag/T-ZnO/CFRP composites under a lightning current with a peak of 100 kA. The EMI shielding effectiveness (SE) of UD Ag/T-ZnO/CFRP composites is 40.99 dB in the frequency range of 8.2–12.4 GHz, 26.46 dB higher than that of the pristine composites due to the reflection loss at the Ag/T-ZnO interlayers. In addition, it was found that Mode I interlaminar toughness of the UD CFRP composites increased by 7.41 % after the incorporation of the Ag/T-ZnO interlayers. This study provides an alternative strategy for designing LS protection and EMI shielding for aircraft.

DOI：https://doi.org/10.1016/j.compositesb.2024.111448