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用于雷击防护（LSP）的混合纳米填料增强碳纤维增强聚合物复合材料（CFRP）。

Hybrid Nanofiller-Enhanced Carbon Fiber-Reinforced Polymer Composites (CFRP) for Lightning Strike Protection (LSP).

作者信息

de Oliveira Matheus Mendes, Runqvist Linnea, Poot Thirza, Uvdal Kajsa, Carastan Danilo Justino, Selegård Linnea

机构信息

Center for Engineering, Modeling and Applied Social Sciences, Federal University of ABC, Santo Andre, São Paulo09210580, Brazil.

Saab AB, Linköping SE-581 88, Sweden.

出版信息

ACS Omega. 2024 Aug 9;9(33):35567-35578. doi: 10.1021/acsomega.4c03272. eCollection 2024 Aug 20.

DOI:10.1021/acsomega.4c03272
PMID:39184466
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11339985/
Abstract

The aviation industry relies on lightweight carbon fiber-reinforced polymers (CFRP) for fuel efficiency, which necessitates lightning strike protection (LSP) and electromagnetic shielding due to their electrical insulating characteristics. Traditional metallic meshes used for LSP are heavy and corrosion-prone, prompting the exploration of alternatives. This research showcases CFRP nanocomposites with enhanced LSP properties through the incorporation of graphene nanoplatelets (GNPs) and carbon nanotubes (CNTs). While the enhanced conductivity in the nanofilled epoxy matrix did not impact the overall conductivity of CFRP panels, a significant damage reduction was observed after simulated lightning strike tests. Similar approaches in the literature have also noted this discrepancy, but no attempts to reconcile it have been made. This work provides a framework to explain the damage reduction mechanism while accounting for the modest conductivity improvements in the nanoreinforced CFRPs. Additionally, a simple, nondestructive method to assess surface resin degradation after a lightning strike test is proposed, based on the fluorescence of diphenyl ketones. The discussion is supported by electrical conductivity measurements, damage pattern evaluation using the proposed UV-illumination method, ATR-FTIR, and scanning electron microscopy analysis pre- and postlightning strike simulation.

摘要

航空业依赖轻质碳纤维增强聚合物（CFRP）来提高燃油效率，由于其电绝缘特性，这就需要进行雷击防护（LSP）和电磁屏蔽。用于雷击防护的传统金属网很重且容易腐蚀，这促使人们探索替代方案。本研究展示了通过掺入石墨烯纳米片（GNP）和碳纳米管（CNT）而具有增强雷击防护性能的CFRP纳米复合材料。虽然纳米填充环氧基质中电导率的提高并未影响CFRP面板的整体电导率，但在模拟雷击试验后观察到损伤显著减少。文献中的类似方法也指出了这种差异，但尚未尝试对此进行调和。这项工作提供了一个框架，用以解释损伤减少机制，同时考虑到纳米增强CFRP中适度的电导率提高。此外，基于二苯甲酮的荧光，提出了一种简单的无损方法来评估雷击试验后表面树脂的降解情况。电导率测量、使用所提出的紫外线照射方法进行损伤模式评估、衰减全反射傅里叶变换红外光谱（ATR-FTIR）以及雷击模拟前后的扫描电子显微镜分析均支持了该讨论。

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The Influence of Sonication Processing Conditions on Electrical and Mechanical Properties of Single and Hybrid Epoxy Nanocomposites Filled with Carbon Nanoparticles.超声处理条件对填充碳纳米颗粒的单一及混合环氧纳米复合材料电学和力学性能的影响
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