摘要
采用电化学阻抗谱和极化曲线方法研究了环境友好型缓蚀剂聚天冬氨酸和钨酸钠对模拟水中铜的缓蚀作用。实验结果表明,单一聚天冬氨酸,在[PASP]=7mg/L时,对铜的缓蚀性能最佳;而单一钨酸钠,在[Na2WO4]=35mg/L时,对铜的缓蚀性能最好。在缓蚀剂总浓度一定时(7mg/L),聚天冬氨酸和钨酸钠两者复配对铜的缓蚀效果要比单一配方明显增强,其中以配比为1∶1时缓蚀效果最好,并具有协同效应。
The inhibition effect of environmentally friendly inhibitors such as tungstate and poly-aspartate (PASP) on copper corrosion in simulated cooling water was studied by using EIS and polarization curves. PASP showed the best inhibition effect on copper corrosion when the concentration of PASP reached 7mg/L. Na2WO4 showed the best inhibition effect when the concentration of Naz WO4 reached 35mg/L. At the total inhibitor concentration of 7mg/L, the combination of PASP and tungstate had a good synergistic effect, and the best ratio of PASP to tungstate was 1 : 1.
出处
《腐蚀与防护》
CAS
北大核心
2005年第10期415-417,421,共4页
Corrosion & Protection
基金
国家自然科学基金(20406009)
上海市科委启明星计划(02QF14022)
上海市科委重点培育学科
上海市重点学科(P1304)
上海市曙光计划(04SG55)
关键词
聚天冬氨酸
钨酸钠
铜
缓蚀剂
交流阻抗
Poly-aspartate(PASP)
Sodium tungstate
Copper
Inhibitor
AC impedance