用失重法研究了1 mol/L盐酸溶液中羧甲基壳聚糖(Carboxymenthylchitosan(CM-chitosan))对碳钢的缓蚀作用.结果表明,CM-chitosan对碳钢在盐酸介质中的腐蚀具有良好的缓蚀作用,随着浓度的增加缓蚀效率增大.在200 mg/L的浓度下达到最高.用电化学阻抗法测定了碳钢在盐酸溶液中的零电荷电位,确立了CM-chitosan的吸附模型.303K～343K内CM-chitosan在碳钢表面的吸附遵循Langmuir规律,并获得吸附过程△G°、△H°和△S°等重要热力学参数.
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