采用失重法、动电位极化法和电化学阻抗谱评价了1-(1-苯胺基-3-苯基-2-丙烯基)-2,3-二氢苯并咪唑(AP-PB)在盐酸介质中对A3钢的缓蚀作用.结果表明,APPB的缓蚀率随着盐酸浓度的升高和缓蚀剂浓度增大而升高,随着温度升高而下降.加入APPB后,提高了腐蚀反应的活化能.APPB能自发地吸附在A3钢表面,其吸附行为符合Langmuir吸附等温式.同时用量子化学方法研究了APPB分子结构与缓蚀性能的关系.
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