响应面法优化松香基咪唑啉合成工艺及缓蚀性能研究

doi:10.13218/j.cnki.csdc.2016.12.003

日用化学工业 ›› 2016, Vol. 46 ›› Issue (12): 684-689.doi: 10.13218/j.cnki.csdc.2016.12.003

响应面法优化松香基咪唑啉合成工艺及缓蚀性能研究

郭睿,李晓芳,唐宏科,王超

陕西科技大学教育部轻化工助剂化学与技术重点实验室,陕西西安 710021

出版日期:2016-12-22 发布日期:2019-04-18
通讯作者: 李晓芳,硕士,电话:18706772119,E-mail:1021361391@qq.com。
作者简介:郭睿(1959-),男,陕西咸阳人,教授,硕士,E-mail:guor@sust.edu.cn。
基金资助:
陕西省科技统筹创新工程计划资助项目(2014KTCL01-11);陕西省科学技术研究发展计划资助项目(2013K11-19)

Optimization of synthesis of rosin based imidazoline by response surface method and study of its corrosion inhibition performance

GUO Rui,LI Xiao-fang,TANG Hong-ke,WANG Chao

Key Laboratory of Auxiliary Chemistry &Technology for Chemical Industry of the Ministry of Education, Shaanxi University of Science and Technology,Xi'an,Shaanxi 710021,China

Online:2016-12-22 Published:2019-04-18

摘要/Abstract

摘要： 以3-氯-2-羟基丙烷磺酸钠为季铵化试剂,松香和二乙烯三胺为原料,聚乙二醇600为相转移催化剂,合成了松香基咪唑啉。在单因素试验的基础上,利用响应面法优化松香基咪唑啉的合成工艺条件为:反应时间5 h、催化剂用量为松香基咪唑啉中间体物质的量的14%、反应温度123 ℃、n(3-氯-2-羟基丙烷磺酸钠)∶n(松香基咪唑啉中间体)=0.89∶1、m(水)∶m(异丙醇)=2.14∶1,在此条件下松香基咪唑啉中间体进行S_N2亲核取代生成NaCl的含量最高,为12.73%。采用红外光谱和核磁共振(¹³C NMR)对较佳工艺条件下合成的松香基咪唑啉的结构进行了表征,同时测定了其在盐酸介质中的缓蚀性能,测试结果表明,以占盐酸质量0.6%的松香基咪唑啉作为缓蚀剂,在质量分数为15%的盐酸介质中30 ℃下腐蚀48 h,其对A3钢片的缓蚀率可达84.79%。

关键词: 松香基咪唑啉, 响应面法, 缓蚀性能

Abstract: Rosin based imidazoline was synthesized with rosin and diethylenetriamine as raw materials,sodium 3-chloro-2-hydroxy propane sulfonate as quaternization agent and polyethylene glycol 600 as phase transfer catalyst.Based upon results obtained from single factor experiments and using response surface method,the optimal synthesis conditions were determined as:reaction time,5 h;dosage of the catalyst,14% of the amount of matter of rosin based imidazoline intermediate;reaction temperature,123 ℃;n(sodium 3-chloro-2-hydroxy propane sulfonate)∶n(rosin based imidazoline intermediate),0.89∶1;m(water)∶m(isopropanol),2.14∶1.Under the above-mentioned conditions,S_N2 substitution of rosin based imidazoline intermediate could reach maximum,and the value is 12.73%.The structure of rosin based imidazoline was characterized by FT-IR and ¹³C NMR under the optimum conditions,and the corrosion inhibition performance of the product were measured.The results showed that when a steel sample that is dipped in 15% mass fraction hydrochloric acid under 30 ℃ for 48 h,with 0.6% mass fraction of rosin based imidazoline as corrosion inhibitor the corrosion inhibition rate of the steel sample could reach 84.79%.

Key words: rosin based imidazoline, response surface method, corrosion inhibition performance

中图分类号:

TQ423.3

郭睿,李晓芳,唐宏科,王超. 响应面法优化松香基咪唑啉合成工艺及缓蚀性能研究[J]. 日用化学工业, 2016, 46(12): 684-689.

GUO Rui,LI Xiao-fang,TANG Hong-ke,WANG Chao. Optimization of synthesis of rosin based imidazoline by response surface method and study of its corrosion inhibition performance[J]. China Surfactant Detergent & Cosmetics, 2016, 46(12): 684-689.

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响应面法优化松香基咪唑啉合成工艺及缓蚀性能研究

Optimization of synthesis of rosin based imidazoline by response surface method and study of its corrosion inhibition performance

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