采用失重法研究了pH=7.5的自来水中缓蚀剂聚环氧 琥珀酸和BTA、Zn2+、硅酸钠复配时对铜的缓蚀效果，实验表明，在缓蚀剂总浓度为54.5 mg/L，四种药剂复配复配时，显示较好的协同效应，其最佳配比为20 mg/L聚环氧琥珀酸+05 mg/L BTA+4 mg/L Zn2++30 mg/L硅酸钠；电化学动电位极化曲线测试的结果表明复合配方水处理剂对阳极、阴极均有缓蚀作用.
Using weight-loss method,the corrosion inhibition upon copper in the Nanyang municipal tap water of pH=7.5 of Polyepoxysuccinic acid combined with BTA,Zn2+and Na2SiO3 is studied.The experimental results show:the combination of four medicals shows excellent ability of corrosion inhibition,especially when their ratio is 20 mg/L Polyepoxysuccinic acid+0.5 mg/L BTA+4 mg/L Zn2++30 mg/L Na2SiO3.In addition,the results of potentiodyhamical polarization curves prove that the combination of water treatment agents show ability of corrosion inhibition on both of anode and cathode.
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