聚天冬氨酸和钨酸钠复配对3%NaCl溶液中白铜B10的缓蚀作用  

The Complex of PASP and Tungstate as Inhibitors of Cupronickel B10′s Corrosion in 3% NaCl Solution

作　　者：徐群杰[1] 周国定[1] 王会峰 蔡文斌[1] 

机构地区：[1]上海电力学院能源与环境工程学院国家电力公司热力设备腐蚀与防护重点实验室,上海200090 [2]复旦大学化学系,上海200433

出　　处：《电化学》2006年第1期65-68,共4页Journal of Electrochemistry

基　　金：国家自然科学基金(20446009);上海市青年科技启明星项目(02QF14022);上海市曙光计划项目(04SG55);上海市重点学科建设项目(P1304);上海市教委重点培育学科资助

摘　　要：应用交流阻抗法和极化曲线法,研究了两种环境友好型水处理药剂,即聚冬天氨酸(PASP)和钨酸钠的单一配方及其复配对白铜(B10)在3%NaC l溶液中的缓蚀效果.研究表明:单一聚冬天氨酸或钨酸钠配方对B10均具有一定的缓蚀效果,其中聚冬天氨酸以浓度为40 mg/L,钨酸钠以浓度为60 mg/L时的缓蚀效果最佳.总浓度为40 mg/L的两者复配具有更加明显的缓蚀效果并显示出协同效应,其中以聚冬天氨酸与钨酸钠配比为3∶1的缓蚀效果最佳.AC impedance and polarization curve measurements were conducted to study the effects of environment-friendly inhibitors PASP,Na2WO4and their complexes on the corrosion of cupronickel B10 in 3% NaCl solution. The results indicate that PASP or Na2WO4 alone does inhibit the corrosion of B10,and most effective concentrations are 40 mg/L and 60 mg/L for PASP and Na2 WO4, respectively. With the total concentration of 40mg/L for the complex inhibitors ,the optimum complex ratio of PASP to Na2W04 was 3 ： 1. The complex of such a combination showed a significantly synergetic inhibition effect on the corrosion of B10.

关 键 词：聚天冬氨酸 钨酸钠 白铜B10 缓蚀剂 交流阻抗 

分 类 号：TG174.42[金属学及工艺—金属表面处理]