赵红冉,周玉丰,刘栓,苏胜培,余海斌.2,3-二巯基丁二酸对铜的缓蚀性能研究[J].表面技术,2015,44(10):79-85.
ZHAO Hong-ran,ZHOU Yu-feng,LIU Shuan,SU Sheng-pei,YU Hai-bin.Corrosion Inhibition Performance of 2,3-dimercaptosuccinic Acid on Copper[J].Surface Technology,2015,44(10):79-85 |
| 2,3-二巯基丁二酸对铜的缓蚀性能研究 |
| Corrosion Inhibition Performance of 2,3-dimercaptosuccinic Acid on Copper |
| 投稿时间：2015-06-25 修订日期：2015-10-20 |
| DOI：10.16490/j.cnki.issn.1001-3660.2015.10.014 |
| 中文关键词: 2,3-二巯基丁二酸 硫醇 交流阻抗谱 铜 缓蚀剂 腐蚀 |
| 英文关键词:2,3-dimercaptosuccinic acid thiol AC impedance spectroscopy copper corrosion inhibitor corrosion |
| 基金项目:国家自然科学基金(41506098);中国科学院海洋新材料与应用技术重点实验开放基金资助(LMMT-KFKT-2014-008) |
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| Author | Institution |
| ZHAO Hong-ran | 1. College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China;2. Ningbo Institute of Materials Technologies and Engineering, Chinese Academy of Sciences, Ningbo 315201, China |
| ZHOU Yu-feng | Ningbo Institute of Materials Technologies and Engineering, Chinese Academy of Sciences, Ningbo 315201, China |
| LIU Shuan | Ningbo Institute of Materials Technologies and Engineering, Chinese Academy of Sciences, Ningbo 315201, China |
| SU Sheng-pei | College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China |
| YU Hai-bin | Ningbo Institute of Materials Technologies and Engineering, Chinese Academy of Sciences, Ningbo 315201, China |
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| 中文摘要: |
| 目的 以马来酸为原料制备 2,3-二巯基丁二酸(DMSA),研究 DMSA 对铜在 0. 5 mol/ L NaOH 溶液中的缓蚀作用。 方法 以马来酸为原料,通过加成、消去、加成再水解的方法制备 2,3-二巯基丁二酸,利用红外光谱和质谱对其结构进行表征。 通过静态腐蚀失重实验研究铜在添加不同含量 DMSA 的NaOH 溶液中的腐蚀速度,采用极化曲线和交流阻抗谱技术研究铜在添加不同含量 DMSA 的 NaOH 溶液中电化学行为,并用电子扫描电镜观察铜表面腐蚀形貌。 结果 红外光谱和质谱结合证明,目标产物为DMSA。 铜在 DMSA 质量浓度分别为 0,2. 5,5. 0 g/ L 的 NaOH 溶液中的腐蚀速率分别为 7. 60,3. 25,2. 13μg/ (cm2·h)。 当 NaOH 溶液中 DMSA 的质量浓度为 5. 0 g/ L 时,缓蚀率可达到 94. 92% 。 结论 DMSA在铜表面的吸附能降低水分子的侵蚀,增大铜表面的腐蚀产物膜电阻和电荷转移电阻,属于阳极型缓蚀剂。 |
| 英文摘要: |
| Objective 2,3-dimercaptosuccinic acid(DMSA) was synthesized with maleic acid as raw material, to study the corrosion inhibition performance of DMSA on copper in 0. 5 mol/ L NaOH solution. Methods DMSA was prepared by methods of addition, elimination, addition and hydrolysis with maleic acid as raw material, the structure of which was then characterized by Fourier infrared spectroscopy (IR) and mass spectrometry (MS). The corrosion rates of copper in 0. 5 mol/ L NaOH supplemented with different concentrations of DMSA were investigated by static weight loss tests, the corrosion inhibition performance was investigated by polarization curves and electrochemical impendence spectroscopy (EIS), respectively. Copper surface corrosion morphology was observed by scanning electronmicroscopy (SEM). Results IR and mass spectrometry jointly confirmed that the target product was DMSA. The corrosion rates of Cu in 0. 5 mol / L NaOH were 7. 60, 3. 25, 2. 13 μg / ( cm2 ·h) with supplementation of 0, 2. 5, 5. 0 g / L DMSA, respectively. When the DMSA concentration in NaOH solution was 5. 0 g / L, the inhibition efficiency reached 94. 92% . Conclusion DMSA could absorb on the copper surface, decrease water erosion and increase the corrosion product film resistance and the charge transfer resistance. DMSA was an anodic inhibitor. |
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