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应用计算机控制的动电位扫描法研究了油溶性咪唑啉类缓蚀剂对碳钢在弱酸性H_2S水溶液中的缓蚀作用,并采用三参数拟合方法对阴阳极极化曲线进行拟合计算,算出相应的β_Aβ_K,I_corr等值.发现“HT01”的缓蚀作用要优于“WS-1”,进一步计算表明:“WS-1”在碳钢表面的吸附服从Langmuir吸附等温式,而“HT01’则不完全符合.
The corrosion inhibition effect of oil-soluble imidazoline inhibitors on carbon steel in weak acid H 2 S aqueous solution was studied by computer-controlled potentiodynamic scanning. The three-parameter fitting method was used to calculate the cathodic polarization curves. The results showed that the corrosion inhibition effect of “HT01” was better than that of “WS-1”. Further calculations showed that the adsorption of “WS-1” on the surface of carbon steel obeys the Langmuir adsorption isotherm, ’Does not exactly match.