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摘要：铜有着很好的导热性、导电性，很好的加工性能，优良的耐磨性以及减摩擦性等特殊的机械性，色泽十分美观。但是随着使用时间的推移，铜会受到不同程度的损坏，一般破损的形式包括腐蚀、断裂和磨损。所以铜的腐蚀和防护是一个需要尽快解决的问题。本文分别研究了十二烷基硫醇、苯并三氮唑对铜表面腐蚀的抑制效果。通过极化曲线和交流阻抗等方法对各自组装膜对铜腐蚀的抑制效果进行试验，对不同浓度的溶液及不同时间做了实验，实验结果表明：不管是十二烷基硫醇还是苯并三氮唑，对铜表面的腐蚀都有抑制效果，能很好的防护铜表面的腐蚀。31824
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毕业论文关键词：铜；自组装膜；防腐蚀；极化曲线；交流阻抗；丙苯三氮唑；十二烷基硫醇
Effect of organic additives on the properties of Cu self - assembled films
Abstract:Copper has good physical properties, chemical properties, good processing performance, excellent wear resistance and friction reduction, and other special mechanical properties, color is very beautiful. But with the use of time, copper will be damaged by different degrees, the general damage form including corrosion, fracture and wear. So copper corrosion and protection is a problem that need to be solved as soon as possible.. The inhibition effect of twelve alkyl thiol, benzene and three nitrogen on the surface corrosion of copper was studied.. By polarization curves and AC impedance of each assembly films of copper corrosion inhibition effect carries on the experiment, the solution of different concentrations and different time to do the experiment. The experimental results show that: regardless of dodecyl mercaptan or benzene and three nitrogen thiazole, corrosion of copper surface has inhibitory effect, the corrosion of copper door surface can be a very good.
Keywords: copper; self-assembly; corrosion; polarization curve; AC impedance; three benzene azole; twelve alkyl mercaptan
目 录
1 绪论 4
1.1 铜的性质 4
1.2 铜的腐蚀 4
1.2.1 铜在大气中的腐蚀 4
1.2.2 铜在水中的腐蚀 4
1.3 自组装法铜的防变色研究现状 4
1.3.1 铜的防变色膜保护剂 5
1.3.2 钝化膜型保护剂 5
1.3.3 沉淀膜型保护剂 5
1.3.4 吸附型保护剂 6
1.4 金属铜防腐蚀的意义、目的及内容 7
1.4.1金属铜防腐蚀的意义 7
1.4.2 金属铜防腐蚀的目的 7
1.4.3 金属铜防腐蚀的内容 8
2 实验 9
2.1 实验的原理 9
2.2 实验材料 10
2.3 缓蚀膜的制备 10
2.3.1 苯并三氮唑溶液的制备 10
2.3.2 十二烷基硫醇自组装膜的制备 10
2.4 性能测试 10
2.4.1 试样处理 10
2.4.2 电化学测试 10
2.5 性能评价 11
2.5.1 交流阻抗 11
2.5.2 极化曲线 12
3 结果与讨论 14
3.1 苯并三氮唑的防腐蚀评价 14
3.1.1 不同浓度下的防腐蚀效果 14
3.1.2 不同时间下的腐蚀效果 15
3.1.3 小结 15
3.2 十二烷基硫醇的防腐蚀评价 16
3.2.1 不同浓度下的防腐蚀效果 16
3.2.2 不同时间下的腐蚀效果 17