A large amount of electrically conductive fillers is needed to enhance a Carbon Fiber Reinforced Plastics (CFRP) electrical conductivity enough to withstand lightning strikes of peak currents. However, such large alien constituents hamper the inherent good mechanical properties of CFRP structures. In this work, a solution has been proposed to retain both desired properties in a CFRP laminate. Layer-wise hybrid laminate has been demonstrated as a solution for lightning strike protection of Carbon Fiber Reinforced Plastics (CFRP). Top few layers of a hybrid laminate are prepared using electrically conductive polymer-based resin (CF/C-POLY) to provide effective dissipation of lightning current while epoxy-based CFRP substrate (CF/Epoxy) provides the main structural strength. An insulating adhesive layer is used to bond CF/C-POLY and CF/Epoxy to prepare the laminate. The hybrid laminates were tested for their effectiveness against lightning strikes. Laminates were struck by modified lightning waveform of component A with peak current of -14 kA and -40 kA. The performance of the laminates against lightning strike were evaluated using high speed camera, high-speed and thermal camera. It is found that CF/C-POLY layer successfully defended the main structural component i.e. CF/Epoxy from lightning direct damage.

中文翻译：

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导电碳纤维层作为非导电环氧基 CFRP 基材的雷击保护

需要大量的导电填料来增强碳纤维增强塑料 (CFRP) 的导电性，足以承受峰值电流的雷击。然而，如此大的外来成分阻碍了 CFRP 结构固有的良好机械性能。在这项工作中，提出了一种解决方案，以在 CFRP 层压板中保留这两种所需的特性。分层混合层压板已被证明是碳纤维增强塑料 (CFRP) 雷击保护的解决方案。混合层压板的顶部几层使用导电聚合物基树脂 (CF/C-POLY) 制备，以提供雷电流的有效耗散，而环氧基 CFRP 基板 (CF/环氧树脂) 提供主要结构强度。绝缘粘合剂层用于粘合 CF/C-POLY 和 CF/Epoxy 以制备层压板。测试混合层压板的抗雷击有效性。层压板被组件 A 的修正雷电波形击中，峰值电流为 -14 kA 和 -40 kA。使用高速相机、高速和热相机评估层压板的抗雷击性能。发现CF/C-POLY层成功地保护了主要结构部件即CF/Epoxy免受雷击直接损坏。高速热像仪。发现CF/C-POLY层成功地保护了主要结构部件即CF/Epoxy免受雷击直接损坏。高速热像仪。发现CF/C-POLY层成功地保护了主要结构部件即CF/Epoxy免受雷击直接损坏。