为降低富锌涂料中锌粉含量,改善涂料的防腐性能,采用丙烯酸树脂-氨基树脂为基体,超细锌粉和铝粉为防腐填料,配制了富锌和富锌铝涂料.经中性盐雾试验2 500 h后观察其防腐性能差异,同时采用电化学极化曲线测试涂层的腐蚀电流和腐蚀电位变化,采用扫描电镜(SEM)分析腐蚀后涂层表面的微观形貌.研究表明:锌含量76％的富锌涂料防腐性能较差,而在91％的富锌涂料中添加1％～4％铝粉可以代替部分锌粉而起到更好的防腐效果.
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