新型复合型铜缓蚀剂的实验研究  

A NEW TYPE OF COMPOSITE INHIBITOR FOR COPPER

作　　者：李自托[1] 贾丰春[1] 董泉玉[1] 生群 

机构地区：[1]大连理工大学化工学院电化学工程系,大连116012 [2]大连造船重工有限公司涂装公司,大连116001

出　　处：《腐蚀科学与防护技术》2006年第1期58-60,共3页Corrosion Science and Protection Technology

摘　　要：用电化学和失重法,研究了一种以DG1和BTA为成分的复配缓蚀剂对黄铜的缓蚀作用,并同BTA单独使用时的缓蚀效果比较,发现这种复配缓蚀剂有更优的缓蚀性能,并通过实验找出了两种缓蚀剂的最佳配比:在总浓度为5 mg/L和质量比DG1∶BTA=3∶2时缓蚀效果最好,使用最经济,通过极化曲线分析,复配缓蚀剂为偏阳极混合型缓蚀剂.The performance of a new type composite inhibitor comprised of BTA and DG1 for copper was investigated by weight-loss and electrochemical method, which was then compared with that of BTA alone. The results indicated that the composite inhibitor exhibited better performance than BTA in freshwater and seawater. The polarization resistance was bigger, and the weight loss is less for the former inhibitor. The new kind of inhibitor is multifunctional because it could inhibit not only the corrosion current of anode but also that of cathode. The composite inhibitor of 3 mg/L DG1 plus 2 mg/L. BTA is the optimal one.

关 键 词：铜缓蚀剂 DG1 BTA复配 

分 类 号：TG174.42[金属学及工艺—金属表面处理]