合成了四种Mannich碱，利用Bockris置换模型与统计模型， 计算得出盐酸介质中其在A3钢表面的吸附是一个以化学吸附为主，放热、熵减、可以自动发 生的过程.两模型计算所得到的热力学函数不同的原因在于研究的反应不同.
Four kinds of Mannich bases were synthesized.Their inhibitive behavior on A3 carbon steel in hydrochloric acid medium was studied.B y means of statistical model and displacement model (Bockris equation),two sets of thermodynamic functions were determined.It was shown that the inhibitive proc ess was exothermic,mainly due to chemical adsorption.Negative values of ΔS revealed that the order of inhibitor molecule was enhanced during adsorption.Neg ative values of ΔG were in accordance with spontaneity of the reaction.The difference between two sets of thermodynamic functions was explained and discuss ed with relevant calculations.
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