一种酸化缓蚀剂的缓蚀性能
Corrosion Resistance of an Acidizing Inhibitor
摘 要
在一种咪唑啉衍生物（IMTO）基础上合成了一种新型曼尼希碱型缓蚀剂（IMTOM），通过腐蚀浸泡试验、电化学试验研究了IMTO和IMTOM缓蚀剂的缓蚀性能及缓蚀机理。结果表明：IMTO和IMTOM对36%（质量分数）盐酸溶液中的10钢具有良好的缓蚀作用，且缓蚀率随缓蚀剂添加量的增加而增大；与IMTO比，IMTOM的缓蚀作用更好，当IMTOM添加量为3 g/L时，由失重法计算的缓蚀率可达90%以上；IMTO和IMTOM均属于阳极型缓蚀剂，其在金属表面的吸附遵循Langmuir等温吸附。
曼尼希碱
缓蚀机理
corrosion inhibitor
mannitine
corrosion mechanism
Abstract
A new type of Mannich base corrosion inhibitor (IMTOM) was synthesized based on an imdizoline derivative (IMTO). The corrosion inhibition performance and corrosion inhibition mechanism of IMTO and IMTOM corrosion inhibitors were studied by corrosion immersion test and electrochemical test. The results show that IMTO and IMTOM had good corrosion inhibition effect on 10 steel in 36% (mass fraction) HCl solution. And their corrosion inhibition efficiency increased with the increase of the dosage of corrosion inhibitors. IMTOM had better corrosion inhibition effect than IMTO. When the dosage of IMTOM was 3 g/L, its corrosion inhibition efficiency calculated through weight loss method could reach to over 90%. Both IMTO and IMTOM were anodic corrosion inhibitors whose adsorption on metal surface followed Langmuir isothermal adsorption.
中图分类号 TG174.4 DOI 10.11973/fsyfh-201908005
所属栏目 试验研究
基金项目 国家自然科学青年基金项目（21403038）；广东省公益研究与能力建设项目（2014A010105051）；茂名市科技计划项目（201525）
收稿日期 2018/3/20
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引用该论文: GUO Wenshu,CONG Yufeng,SHEN Jian,HUANG Wei,CHENG Lihua. Corrosion Resistance of an Acidizing Inhibitor[J]. Corrosion & Protection, 2019, 40(8): 572
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【5】OK C Y, YOUNG K H. Checkpoint inhibitors in hematological malignancies. Journal of Hematology & Oncology, 2017, 10(1):103.
【6】袁玮,黄峰,胡骞,等.外加拉应力对X80管线钢点蚀电化学行为的影响.中国腐蚀与防护学报,2013,33(4):277-282.
【7】张静,杜敏,于会华,等.分子结构对咪唑啉缓蚀剂膜在Q235钢表面生长和衰减规律的影响.物理化学学报,2009,25(3):525-531.
【8】高秋英,张江江,杨祖国,等.20#碳钢管道内沉积物对腐蚀行为的影响.科技导报,2014,32(24):35-39.
【9】于湘,余俊良,陈长风,等.电化学噪声研究碳钢在高温环烷酸中的腐蚀行为.应用化工,2017,46(2):275-279.
【10】史艳华,梁平,王玉安,等.Q235和Q345钢在模拟海水中的腐蚀行为.辽宁石油化工大学学报,2013,33(1):5-8.
【11】刘瑕,郑玉贵.流动条件下两种不同亲水基团咪唑啉型缓蚀剂的缓蚀性能.物理化学学报,2009,25(4):713-718.
【12】SCHALLER G E, BINDER B M. Inhibitors of ethylene biosynthesis and signaling//Methods in Molecular Biology. New York, NY:Springer New York, 2017:223-235.
【13】贾志军,杜翠薇,李晓刚.316L不锈钢在FeCl3溶液中点蚀行为的电化学噪声检测.腐蚀与防护,2011,32:497-500.
【14】DENG Y, YE R, XU G F, et al. Corrosion behaviour and mechanism of new aerospace Al-Zn-Mg alloy friction stir welded joints and the effects of secondary Al3ScxZr1-x nanoparticles. Corrosion Science, 2015, 90:359-374.
【15】ARRABAL R, MINGO B, PARDO A, et al. Pitting corrosion of rheocast A356 aluminium alloy in 3.5wt.% NaCl solution.Corrosion Science, 2013, 73:342-355.
【16】朱元良,陈海玲,邱于兵,等.月桂酸根离子吸附对碳钢表面垢层性质的影响.腐蚀科学与防护技术,2010,22(5):427-430.
【17】霍东兴,梁精龙,李慧,等.腐蚀电化学技术应用研究进展.热加工工艺,2017,46(10):18-20.
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