Thickness threshold study of polyaniline-based lightning strike protection coating for carbon/glass fiber reinforced polymer composites
Thickness threshold study of polyaniline-based lightning strike protection coating for carbon/glass fiber reinforced polymer composites
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DOI：
10.1016/j.compstruct.2021.114954
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发表时间：
2021-11
影响因子：
6.3
通讯作者：
Sukanta Das;Vipin Kumar;Juhyeong Lee;T. Yokozeki;T. Okada
中科院分区：
文献类型：
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作者：
Sukanta Das;Vipin Kumar;Juhyeong Lee;T. Yokozeki;T. Okada
通过模拟雷击测试，对不同的聚苯胺（PANI）基雷击保护（LSP）涂层厚度进行了测试，以评估涂层的阈值厚度。对碳/玻璃纤维增强聚合物 (CFRP/GFRP) 复合材料进行了一系列雷击测试，模拟雷电流范围为 40 至 100 kA。本文考虑了五个 LSP 涂层样本：两个 CFRP 和三个 GFRP 复合材料。 CFRP 和 GFRP 复合材料上厚度至少为 345 μm 的聚苯胺基 LSP 涂层在 40 kA 峰值电流下分别保留了 83% 和 100% 的残余强度。此外，在 60 和 100 kA 峰值电流下测试的 GFRP 样本表现出 100% 的残余强度。这项研究提出，基于PANI的LSP涂层适合保护GFRP复合材料，而CFRP复合材料需要仔细设计以避免任何灾难性故障。
Different polyaniline (PANI) based lightning strike protection (LSP) coating thicknesses were tested against simulated lightning strike tests to evaluate the threshold thickness of the coating. A series of lightning strike tests were performed on carbon/glass fiber reinforced polymer (CFRP/GFRP) composites subjected to simulated lightning currents ranging from 40 to 100 kA. Five LSP-coated specimens were considered herein: two CFRP and three GFRP composites. A minimum of∼ 345 μ m thick PANI-based LSP coating on CFRP and GFRP composites under a 40 kA peak current retained 83% and 100% residual strength, respectively. Additionally, GFRP specimens tested against 60 and 100 kA peak currents exhibited 100% residual strength. This study proposes that a PANI-based LSP coating is suitable for protecting GFRP composites, while the careful design is necessary for CFRP composites to avoid any catastrophic failure.