In this study, graphene nanoplatelet (GNP)/nano-carbon aerogel (NCA) hybrids were used to reinforce epoxy/carbon fiber composite (CFRP) laminates to investigate the environmental aging effect on their mechanical properties. Different amounts (i.e., 0, 0.25, 0.5, 0.75, and 1.0 wt.%) of the GNP/NCA (1:1) hybrids were dispersed in epoxy resin to prepare GNP/NCA/CFRP laminates. The mechanical properties of these reinforced laminates were investigated under three different environmental aging conditions (i.e., 25 °C, 65% relative humidity (RH); 25 °C, 85% RH; and 85 °C, 85% RH). Furthermore, the micro-mechanisms were examined under the environmental aging conditions for improved mechanical properties of the GNP/NCA/CFRP laminate. The impacts of various environmental parameters, i.e., temperature and moisture, were discussed. The reinforced laminates showed better mechanical properties than neat laminates under all three environmental aging conditions. Based on the published results and the experimental results obtained herein, the mechanisms of the GNP/NCA hybrid-reinforced CFRP laminate were defined.

在这项研究中，使用石墨烯纳米片（GNP）/纳米碳气凝胶（NCA）杂化物来增强环氧/碳纤维复合材料（CFRP）层压板，以研究环境老化对其机械性能的影响。将不同量（即0、0.25、0.5、0.75和1.0重量％）的GNP / NCA（1：1）杂化物分散在环氧树脂中，以制备GNP / NCA / CFRP层压板。在三种不同的环境老化条件下（即25°C，65％相对湿度（RH）； 25°C，85％RH； 85°C，85％RH）研究了这些增强层压板的机械性能。此外，在环境老化条件下检查了微观机制，以改善GNP / NCA / CFRP层压板的机械性能。讨论了各种环境参数（例如温度和湿度）的影响。在所有三种环境老化条件下，增强层压板均比纯层压板显示出更好的机械性能。基于公开的结果和此处获得的实验结果，定义了GNP / NCA杂化增强CFRP层压板的机理。