通过失重、电化学测试以及量子化学计算方法研究了新型杂环恶二唑化合物5-[(1H-1,2,4-三氮唑-1-基)甲基]-1,3,4-噁二唑-2-硫醇(TAOT)在1 mol/L HC1中对Q235钢(碳钢)的缓蚀作用.结果表明,TAOT在1 mol/LHC1中对Q235钢的缓蚀作用高达89.1%,能同时抑制碳钢腐蚀的阴、阳极反应过程.碳钢的阻抗值随TAOT浓度增加而增大,其在碳钢表面的吸附符合Langmuir等温式,量子化学计算结果也表明,该化合物物可能是通过巯基提供电子与碳钢表面相互作用来起到缓蚀作用的.
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