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摘要应用Design-Expert软件Box-Behnken响应面法设计硫脲、乌洛托品、二元共聚、BTA缓蚀剂配方，采用旋转挂片法和重量法研究四种单一缓蚀剂及它们的复合配方在1MHCl条件下对钢、铜的缓蚀性能，并通过电化学极化法中的塔菲尔极化曲线探讨缓蚀剂配方的缓蚀类型。研究结果表明，复合缓蚀剂硫脲、乌洛托品、二元共聚、BTA的最佳配方浓度分别为60 mg/L、194 mg/L、193 mg/L、100 mg/L；缓蚀剂溶液的缓蚀类型以阴极抑制型为主；在清洗钢铜混合材料时，易出现镀铜现象，自腐蚀电流密度差越大，镀铜现象越不明显。43198
关键词 缓蚀剂 钢铜 重量法 电化学极化法
毕业论文设计说明书外文摘要
Title Study on the development of high efficient corrosion inhibitor for steel
and copper in acid condition
Abstract
Using the Box-Behnken response surface method of Design-Expert soft designs inhibitor formulation of thiourea, urotropine, binary copolymerization and BTA , adopting rotation hanging plate method and gravimetric method study four single corrosion inhibitor and their compound formula of corrosion inhibition performance for steel, copper in 1MHCl conditions,and probing into the corrosion inhibitor formula of corrosion types through the Tafel curves of electrochemical polarization method.Research result shows that the composite corrosion inhibition agent thiourea, urotropine, binary copolymerization and BTA in the optimum formula of the concentration of 60 mg/L, 194 mg/L, 193 mg/L, 100 mg/L respectively;the corrosion types of corrosion inhibitor solution are based on cathodic inhibition type;when cleaning steel mixed copper material,it Prones to the copper plating phenomenon,if the corrosion current density difference is large, the copper plating phenomenon is not abvious.
Keywords Corrosion inhibitor Steel-copper gravimetric method electrochemical polarization method
目 次
1 绪论 3
1.1 缓蚀剂研究背景 3
1.2 缓蚀剂分类 3
1.3 缓蚀剂作用机理 4
1.3.2 缓蚀剂的物理化学机理 4
1.4 缓蚀剂研究方法 4
1.5 常用酸洗缓蚀剂 6
1.6 本课题研究目的和主要内容 7
2 实验部分 8
2.1 缓蚀性能研究 8
2.2 仪器及设备 8
2.3 实验条件 9
2.4 实验用药品储备液 9
2.5 实验方案设计 10
2.6 实验步骤 10
2.7 结果表示和计算 11
2.8 探究最佳浓度配比 12
2.9 电化学测量 12
3 实验结果和分析 14
3.1空白实验腐蚀率 14
3.2 缓蚀剂缓蚀性能分析 14
3.3 单一缓蚀剂的缓蚀性能分析 17
3.4 复合缓蚀剂的缓蚀性能分析 20
3.5电化学分析 23
结 论 30
致 谢