十六烷基三甲基溴化铵与氯化钠对不同浓度硫酸中冷轧钢的缓蚀协同作用

Synergistic inhibition between cetyltrimethyl ammonium bromide (CTAB) and NaCl on the corrosion of cold rolled steel in the various concentrations of sulfuric acid

    摘要
  • 摘要: 用失重法和电化学方法研究了0.5-2.0mol/L硫酸中十六烷基三甲基溴化铵(CTAB)与氯化钠对冷轧钢的腐蚀影响.研究表明:CTAB与NaCl的混合物表现为阴极为主的混合型缓蚀剂,混合物的吸附符合Langmuir等温式.失重法和电化学方法都表明CTAB与NaCl对硫酸中钢的腐蚀存在缓蚀协同作用.

     

    Abstract: The effect of cetyltrimethyl ammonium bromide (CTAB) and NaCl on the corrosion of cold rolled steel in 0.5-2.0mol/L sulfuric acid was investigated by using weight loss and electrochemical methods.The complex of CTAB and NaCl acts as a mixed type inhibitor,which mainly inhibits cathodic reaction.The adsorption of complex follows with the Langmuir adsorption isotherm.A synergistic inhibition between CTAB and NaCl against steel corrosion in sulfuric acid was demonstrated.

     

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