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赵鹏艳、闫瑾、闫慧敏同学论文在《Progress in Organic Coatings》上发表
发布时间:2023-02-22

Wear and corrosion resistance of self-healing epoxy coatings filled by polydopamine-modified graphene oxide assembly of polysulfone double-walled microcapsules

   为了制备具有突出的耐磨性和耐腐蚀性的微胶囊自修复涂层,通过聚多巴胺(PDA)改性,将氧化石墨烯(GO)组装到聚砜(PSF)的外壳层,制备了一种新型双壁微胶囊填充环氧树脂(EP)涂层。所制备的双壁微胶囊表面粗糙,颗粒大小为60-70μm,壁厚为2-3μm。随着分散性和兼容性的增强,双壁微胶囊填充复合涂层显示出更高的机械性能和热稳定性。填充10.0wt%微胶囊的EP涂层的平均摩擦系数和磨损率较纯EP涂层分别降低37.0%和75.2%。浸泡7天后,涂层的阻抗值和低频阻抗模量分别为纯EP的17.5和10.7倍。经72小时自我修复后,划痕愈合明显,表面疏水性增强。

原文链接:Wear and corrosion resistance of self-healing epoxy coatings filled by polydopamine-modified graphene oxide assembly of polysulfone double-walled microcapsules - ScienceDirect