首先采用改进Hummers法制备氧化石墨烯分散液,再用原位聚合法制备石墨烯改性水性环氧-丙烯酸酯复合乳液,并制备其涂层.主要研究了石墨烯改性水性环氧-丙烯酸酯复合乳液的稳定性和复合乳液涂膜的耐腐蚀性.结果表明:石墨烯能够较好地分散在复合乳液中,成膜时能够很好地填充在涂层的细小缝隙中而产生屏障作用,阻碍腐蚀粒子从介质渗透到铁板表面.因此复合乳液的耐腐蚀性较未改性的水性环氧-丙烯酸酯乳液和直接共混乳液的耐腐蚀性明显增强.%Firstly,a graphene oxide (GO) dispersion was prepared by the improved Hummers method,then the waterborne epoxy-acrylate emulsion modified by graphene oxide was prepared with in-situ polymerization method.The dispersion stability and anticorrosion performance of the modified waterborne epoxy-acrylate emulsion were mainly studied in this paper.The results showed that graphene oxide could be well dispersed into the waterborne epoxy-acrylate emulsion.The anticorrosion performance of the modified waterborne epoxyacrylate emulsion with in-situ polymerization method was obviously higher than that of the base emulsion and the blended emulsion.
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