利用极化曲线和Mott-Schottky图研究了DP-1型缓蚀剂对含硫离子的模拟冷却水中不锈钢腐蚀的抑制作用.结果发现,硫离子降低了不锈钢的耐蚀性能;DP-1型缓蚀剂的加入使不锈钢钝态电流密度和钝化膜载流子浓度随硫离子浓度的增加而增大的幅度大大降低,说明该缓蚀剂抑制了硫离子对不锈钢钝化膜的侵蚀作用.
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