杨秀芳,唐敏敏,刘杨杨,马养民.一种曼尼希碱缓蚀剂的复配研究[J].表面技术,2018,47(5):77-82.
YANG Xiu-fang,TANG Min-min,LIU Yang-yang,MA Yang-min.Compound of Mannich Base Corrosion Inhibitor[J].Surface Technology,2018,47(5):77-82
一种曼尼希碱缓蚀剂的复配研究
Compound of Mannich Base Corrosion Inhibitor
投稿时间:2017-11-13  修订日期:2018-05-20
DOI:10.16490/j.cnki.issn.1001-3660.2018.05.012
中文关键词:  缓蚀剂  曼尼希碱  复配  腐蚀速率  花椒籽油  吸附
英文关键词:corrosion inhibitor  mannich base  complex  pepper seed oil  adsorption
基金项目:陕西省教育厅重点实验室项目(15JS012);陕西省科技统筹创新工程计划项目(2016KTTSNY03-04)
作者单位
杨秀芳 陕西科技大学 化学与化工学院 陕西省轻化工助剂重点实验室,西安 710021 
唐敏敏 陕西科技大学 化学与化工学院 陕西省轻化工助剂重点实验室,西安 710021 
刘杨杨 陕西科技大学 化学与化工学院 陕西省轻化工助剂重点实验室,西安 710021 
马养民 陕西科技大学 化学与化工学院 陕西省轻化工助剂重点实验室,西安 710021 
AuthorInstitution
YANG Xiu-fang Shaanxi Key Laboratory of Chemical Additives for Industry, School of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi′an 710021, China 
TANG Min-min Shaanxi Key Laboratory of Chemical Additives for Industry, School of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi′an 710021, China 
LIU Yang-yang Shaanxi Key Laboratory of Chemical Additives for Industry, School of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi′an 710021, China 
MA Yang-min Shaanxi Key Laboratory of Chemical Additives for Industry, School of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi′an 710021, China 
摘要点击次数:
全文下载次数:
中文摘要:
      目的 利用常用复配剂对缓蚀剂进行复配,以获得更好的缓蚀效果。方法 利用静态失重法测量缓蚀剂与KI、硫脲、花椒籽油、六次甲基四胺复配前后腐蚀速率的变化,通过电化学方法测量缓蚀剂复配前后交流阻抗谱和极化曲线的变化,借助等温吸附模型对缓蚀剂机理进行探讨。结果 缓蚀剂单独使用且质量浓度为50 mg/L时,腐蚀速率为6.94 g/(m2∙h),随着复配剂KI、硫脲、花椒籽油、六次甲基四胺浓度的升高,金属的腐蚀速率逐渐下降,在复配剂质量浓度为100 mg/L时,腐蚀速率分别下降为4.22、3.69、5.97、3.28 g/(m2∙h)。极化曲线表明,缓蚀剂复配前后都为阴极抑制为主的混合型缓蚀剂。添加复配剂前后缓蚀剂在金属表面的吸附模型均未发生变化,都为Langmuir等温吸附,分别添加复配剂KI、硫脲、花椒籽油、六次甲基四胺后,缓蚀剂在金属表面吸附的ΔGθ分别为–26.1、–25.3、–26.8、–27.4 kJ/mol,说明缓蚀剂在金属表面物理吸附与化学吸附同时存在。结论 KI、硫脲、六次甲基四胺与缓蚀剂的协同作用良好。
英文摘要:
      The work aims to obtain better corrosion inhibition effects by complexing mannich base inhibitor with common compounds. The corrosion rate of corrosion inhibitor before and after complexed with KI, thiourea, pepper oil and hexamethylenetetramine was measured by static weight loss method. The changes of AC impedance and polarization curves for corrosion inhibitor before and after compounding were measured by electrochemi cal method and the mechanism of corrosion inhibitor was discussed by isothermal adsorption model. When the corrosion inhibitor of 50 mg/L was used alone, the corrosion rate was 6.94 g/(m2∙h). As the concentration of KI, thiourea, pepper oil and hexamethylenetetramine increased, the corrosion rate of the metal gradually decreased. When the concentration of the compound was 100 mg/L, the corrosion rates respectively dropped to 4.22, 3.69, 5.97 and 3.28 g/(m2∙h). Through the polarization curves, the corrosion inhibitor was a kind of mixed type corrosion inhibitor mainly depressing cathode before and after compounding. The adsorption model of the corrosion inhibitor on the metal surface before and after the compound was added did not change and was Langmuir isothermal adsorption. The ΔGθ of the corrosion inhibitor adsorbed on the metal surface was respectively –26.1, –25.3, –26.8 and –27.4 kJ/mol after KI, thiourea, pepper oil and, hexamethylenetetramine were added, which indicated that both physical adsorption and chemical adsorption of corrosion inhibitor existed on the metal surface. Corrosion inhibitor has good synergistic effect with KI, thiourea and hexamethylenetetramine.
查看全文  查看/发表评论  下载PDF阅读器
关闭

关于我们 | 联系我们 | 投诉建议 | 隐私保护 | 用户协议

您是第19505457位访问者    渝ICP备15012534号-3

版权所有:《表面技术》编辑部 2014 surface-techj.com, All Rights Reserved

邮编:400039 电话:023-68792193传真:023-68792396 Email: bmjs@surface-techj.com

渝公网安备 50010702501715号