羟基石墨烯封闭剂在铝合金阳极氧化工艺中的应用  

Application of hydroxylated-graphene-containing sealer in anodic oxidation of aluminum alloy

作　　者：王琪 郭崇武[2] 和锡明 姚志辉 WANG Qi;GUO Chongwu;HE Ximing;YAO Zhihui(Shanghai Mirror Metal Surface Treatment Technology Co.,Ltd.,Shanghai 201305,China;Guangzhou Ultra Union Chemicals Co.,Ltd.,Guangzhou 510460,China;Fine Chemicals group Ltd.,Taizhou 510460,China)

机构地区：[1]上海脉诺金属表面处理技术有限公司,上海201503 [2]广州超邦化工有限公司,广东广州510460 [3]精细化学品集团有限公司,浙江台州318020

出　　处：《电镀与涂饰》2022年第13期965-968,共4页Electroplating & Finishing

摘　　要：采用由纳米二氧化硅溶胶、水性硅烷聚合物、水性聚氨酯、氧化石墨烯、流平剂、消泡剂、去离子水等制成的新型羟基石墨烯封闭剂对经过镍盐封孔的铝合金阳极氧化膜进行处理,所得试样在中性盐雾试验1000 h内无腐蚀产物生成,耐蚀性远高于航空工业标准的要求。A novel hydroxylated-graphene-containing sealer composed of silica sol,waterborne silane polymer,waterborne polyurethane,graphene oxide,leveling agent,defoaming agent,and deionized water was used to treat the anodic aluminum oxide film after being sealed with nickel salt.The anodized aluminum alloy specimen treated therewith had no corrosion products on its surface within 1000 h of neutral salt spray test,indicating that its corrosion resistance was much higher than the requirement of the aerospace industry standard.

关 键 词：铝合金 阳极氧化 镍盐封孔 羟基石墨烯 封闭剂 耐蚀性 

分 类 号：TG178[金属学及工艺—金属表面处理]