柳鑫华,杜娇,王庆辉,孙彩云.氨基酸类酸洗缓蚀剂缓蚀机理及其缓蚀性能的影响因素研究[J].表面技术,2010,39(6):51-54.
LIU Xin-hua,DU Jiao,WANG Qing-hui,SUN Cai-yun.Study on Inhibition Mechanism and Inhibition Action of Amino Acid Pickling Corrosion Inhibitor[J].Surface Technology,2010,39(6):51-54 |
| 氨基酸类酸洗缓蚀剂缓蚀机理及其缓蚀性能的影响因素研究 |
| Study on Inhibition Mechanism and Inhibition Action of Amino Acid Pickling Corrosion Inhibitor |
| 投稿时间：2010-07-27 修订日期：2010-12-10 |
| DOI： |
| 中文关键词: 硫酸 碳钢 氨基酸类缓蚀剂 缓蚀机理 影响因素 |
| 英文关键词:sulfuric acid carbon steel aminl acid inhibitor inhibition mechanism influence factor |
| 基金项目: |
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| Author | Institution |
| LIU Xin-hua | College of Light Industry, Hebei Polytechnic University, Tangshan 063000, China |
| DU Jiao | College of Light Industry, Hebei Polytechnic University, Tangshan 063000, China |
| WANG Qing-hui | College of Light Industry, Hebei Polytechnic University, Tangshan 063000, China |
| SUN Cai-yun | College of Light Industry, Hebei Polytechnic University, Tangshan 063000, China |
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| 中文摘要: |
| 采用失重法、电化学法研究了在硫酸介质中,氨基酸类复合缓蚀剂对碳钢的缓蚀性能及缓蚀机理。动电位极化曲线测试证明,氨基酸复合酸洗缓蚀剂是抑制阳极和阴极反应的混合型缓蚀剂;交流阻抗测试了Nyquist图、Bode图及phase angle图,通过分析阻抗Rt、双电层电容Cdl、阻抗模值︱ Z︱和相角的大小,证明三元氨基酸类复合缓蚀剂各组分有很好的协同效应,缓蚀率很高。通过失重法确定,在酸洗时间0～ 16 h,酸洗温度30～ 50℃ ,硫酸浓度0.4～ 2.0 mol/ L范围内,该三元复合缓蚀剂的缓蚀率都在90%以上。 |
| 英文摘要: |
| Inhibition action of steel on inhibitator of amino acid and inhibition mechanism were studied by weightloss and electrochemical method in H2SO4solutions. The potentiodynamic polarization curve results manifested that compound amino acid pickling inhibitors were mixed-type inhibitors which inhibit the reactions of anode and cathode. AC impedance results showed that the ternary complex inhibitors had a good synergistic effect and a high inhibition efficiency which could be proved by Resistance(Rt), double-layer capacitance(Cdl), resistance modulus(︱ Z︱), and phase angle from the Nyquist chart, Bode chart and phase angle chart. The weight-loss method showed that the corrosion efficiency of composite amino acids was over 90% in 0～ 16 hours, 30～ 50℃ and 0.4～ 2.0 mol/ L sulfuric acid. |
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