在磷酸盐无机涂料中添加不同量的氧化石墨烯(GO),通过X射线衍射仪(XRD)、扫描电镜(SEM)对其结构和微观形貌进行表征,并对涂层的电化学性能进行了测试.结果表明:磷酸盐无机涂层是由粒径大小不一的铝粉颗粒相互重叠而成,添加0.09％ GO的涂层表现出更好的防腐性能.相比空白涂层,腐蚀后涂层表面形貌更为致密;同时腐蚀电位(Ecorr)从-0.611 V增加至-0.559 V,腐蚀电流(Jcorr)从5.131 μA·cm-2降低至0.583 μA·cm-2,涂层的初期(10d以内)电化学阻抗提高了2～3倍,涂层显示出优异的耐腐蚀性能.
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