In the present study, carbon aerogels (CAs) are prepared through the pyrolysis of resorcinol‐formaldehyde aerogel and are then used as reinforcement in epoxy resin (ER) for coating applications. In order to reduce the viscosity of ER and enhance the dispersion and wetting of CA particles in the epoxy matrix, a reactive diluent is used. ER coatings containing different contents of CAs were synthesized and analyzed in terms of mechanical, morphological, ultraviolet (UV) resistance, adhesion, and anticorrosion properties. Applying only 3 wt% of CAs could significantly improve the mechanical properties, impact strength, and the joint shear strength of the ER. The Fourier‐transform infrared spectroscopy data before and after UV degradation were used for investigating the effect of CAs on UV stability; it was confirmed that CAs particles improved the UV resistance of the epoxy coatings. Moreover, the results of salt spray test and electro impedance spectroscopy proved that CAs enhanced the corrosion resistance of the epoxy coatings efficiently.

中文翻译：

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间苯二酚甲醛碳气凝胶/环氧涂料的研究：探索机械性能，紫外线稳定性和耐腐蚀性

在本研究中，碳气凝胶（CAs）是通过间苯二酚-甲醛气凝胶的热解制备而成的，然后在环氧树脂（ER）中用作涂料的增强剂。为了降低ER的粘度并增强CA颗粒在环氧基质中的分散和润湿，使用了反应性稀释剂。合成并分析了含有不同含量的CA的ER涂层，包括机械，形态，耐紫外线（UV），附着力和防腐性能。仅使用3 wt％的CA可以显着改善ER的机械性能，冲击强度和接头剪切强度。紫外线降解前后的傅立叶变换红外光谱数据用于研究CA对紫外线稳定性的影响。证实了CAs颗粒改善了环氧涂层的抗紫外线性。此外，盐雾试验和电阻抗谱的结果证明，CAs有效地提高了环氧涂料的耐蚀性。