摘要
用石英晶体微天平（ＱＣＭ）和电化学方法研究了钢在０．５ｍｏｌ／Ｌ Ｎａ２ＳＯ４溶液中的腐蚀行为．在该介质中，铜表面形成由多种硫酸盐构成的不具保护性的腐蚀产物膜，铜表现为线性增重．当加入１ｍｍｏｌ／Ｌ２－巯基苯并恶唑（ＭＢＯ）时，腐蚀过程被大大抑制．含ＭＢＯ的Ｎａ２ＳＯ４溶液中形成的缓蚀膜具有较好的稳定性．
The corrosion behavior of copper and inhibition of 2-mercaptobenzoxazole(MBO) in 0.5 mol/L Na2SO4 solution was investigated by means of quartz crystal microbalance (QCM), potentiodynamic polarization, SEM, FTIR and X-ray diffraction (XRD). In 0. 5 mol/L Na2SO4 solution, copper corroded and produced a film of corrosion products that lacked protection, resulting in approximately linear mass gain. It was verified by XRD that the corrosion film was mainly composed of several kinds of copper sulfate. With 1 mmol/L MBO, the corrosion was inhibited greatly and an inhibition efficiency of 99% was reached. It was found that the copper electrode immersed in Na2SO4 + MBO solution possessed evident corrosion resistance, indicating that a stable and protection film formed in the immersing treatment.
出处
《中国腐蚀与防护学报》
CAS
CSCD
2000年第4期253-256,共4页
Journal of Chinese Society For Corrosion and Protection
基金
国家自然科学基金!(59899144)
辽宁省自然科学基金!(962142)
关键词
铜
硫酸钠
腐蚀
巯基苯并恶唑
缓蚀
copper, sulfate, corrosion, 2-mercaptobenzoxazole (MBO), inhibition
