Corrosion Inhibition Behavior of Salt-Type Vapor Phase Corrosion Inhibitor for Carbon Steel
摘 要
采用固相化学反应制备了高效无毒的盐型气相缓蚀剂苯甲酸吗啉、肉桂酸油胺,并利用传统的气相防锈甄别试验、气相缓蚀能力试验和电化学试验对苯甲酸吗啉、肉桂酸油胺两种气相缓蚀剂的防锈性能进行了评价和比较。结果表明:两种气相缓蚀剂的加入,使碳钢电极的电化学阻抗增大,减缓了电化学反应;同时导致碳钢电极的自腐蚀电位正移,腐蚀电流密度下降,属于阳极作用型气相缓蚀剂,对腐蚀电化学的阴极过程也有一定的抑制作用。相对于肉桂酸油胺,苯甲酸吗啉对碳钢具有更好的缓蚀作用。
Abstract
High-efficiency and non-toxic salt-type vapor phase corrosion inhibitors, morpholine benzoate and cinnamic acid oleic acid, were prepared by solid phase chemical reaction. The anti-rust performance of the two vapor phase corrosion inhibitors, benzoic acid morpholine and cinnamic acid oleic acid, was evaluated and compared by traditional vapor phase rust prevention test, vapor phase corrosion inhibition test and electrochemical test. The results show that the addition of two vapor phase inhibitors increased the electrochemical impedance of the carbon steel electrode and slowed down the electrochemical reaction. At the same time, the self-corrosion potential of the carbon steel electrode shifted positively and the corrosion current density decreased. These two corrosion inhibitors belonged to the anodic vapor phase corrosion inhibitor, which also had a certain inhibitory effect on the cathodic process of corrosion electrochemistry. Compared with cinnamate oleic acid, morpholine benzoate had better corrosion inhibition effect to carbon steel.
中图分类号 TG174.4 DOI 10.11973/fsyfh-201901006
所属栏目 试验研究
基金项目 上海市产业化标准项目(14DZ0500700)
收稿日期 2017/8/23
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引用该论文: FENG Likui,YU Zhiyong,QIAN Zhouhai,LUO Guoming,LIU Zhenhua,ZHANG Daquan. Corrosion Inhibition Behavior of Salt-Type Vapor Phase Corrosion Inhibitor for Carbon Steel[J]. Corrosion & Protection, 2019, 40(1): 28
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参考文献
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【3】MARKHALI B P,NADERI R,MAHDAVIAN M,et al. Electrochemical impedance spectroscopy and electrochemical noise measurements as tools to evaluate corrosion inhibition of azole compounds on stainless steel in acidic media[J]. Corrosion Science,2013,75:269-279.
【4】刘刚连,强明礼. VCI气相防锈包装技术[J]. 中国包装,2010(9):41-44.
【5】高国,梁成浩. 气相缓蚀剂的研究现状及发展趋势[J]. 中国腐蚀与防护学报,2007,27(4):252-255.
【6】张大全,陈雪,朱瑞佳,等. 蒙脱土改性气相缓蚀剂的制备及性能研究[J]. 材料保护,2008,41(2):57-59.
【7】GALWEY A K. Solid state reaction kinetics,mechanisms and catalysis:a retrospective rational review[J]. Reaction Kinetics,Mechanisms and Catalysis,2015,114(1):1-29.
【8】张大全,俞路. 苯甲酸吗啉盐气相缓蚀性能的研究[J]. 腐蚀与防护,1998,19(6):250-252.
【9】安仲勋,潘庆谊,张大全,等. 新型吗啉类气相缓蚀剂的电化学阻抗研究[J]. 材料保护,2003,36(5):14-16.
【10】滕飞,井宇阳,胡钢. 铸铁文物复合气相缓蚀剂的复配与研究[J]. 中国腐蚀与防护学报,2015,35(3):265-270.
【11】曹楚南,张鉴清. 电化学阻抗谱导论[M]. 北京:北京科学出版社,2002:190.
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