摘要
在众多金属防腐方法中,缓蚀剂具有用量少、效果明显、方便经济等优点,备受研究人员的关注,而近年来,植物提取物由于其来源广泛,绿色环保等优势更是研究热点。使用超声提取法从绿茶中提取活性物质作金属酸洗缓蚀剂,采用了失重法探究了其在1mol·L^(-1)HCl溶液中对碳钢片的缓蚀作用,并通过单因素实验和正交实验(L9(3~3))探究不同温度、不同时间和不同绿茶提取物浓度下对碳钢片的缓蚀效率,为后续工作提供一定的数据支撑。通过实验发现,在实验温度为30℃,作用时间为10h,缓蚀剂用量为0.16mg·mL^(-1)时,具有良好的缓蚀效率,可以达到88.60%。最后通过红外表征初步探讨了其缓蚀机理。
Among the many metal corrosion inhibition methods,corrosion inhibitors have the advantages of low dosage,obvious effect,convenience and economy,etc.,which have attracted the great attention of researchers,and in recent years,plant extracts are the research hotspots due to their wide sources,green and environmental protection advantages.In this paper,ultrasonic extraction method was used to extract active substances from green tea as metal pickling corrosion inhibitor,and the weightlessness method was adopted to investigate its corrosion inhibition effect on carbon steel sheet in 1 mol·L^(-1) HCl solution,and through the single factor experiment and orthogonal test(L9(33))to investigate the corrosion inhibition efficiency of carbon steel sheet at different temperatures,different time and different concentrations of green tea extracts,in order to provide a certain degree of data support for the subsequent work.It was found that good corrosion inhibition efficiency of 88.60%was achieved at the experimental temperature of 30℃,the action time of 10 h and corrosion inhibitor dosage of 0.16 mg·mL^(-1).Finally,the corrosion inhibition mechanism was initially explored by infrared characterization.
作者
何激忠
苏柯
张玉芳
刘芯言
陈琳
李晓靖
傅浩
王将
HE Jizhong;SU Ke;ZHANG Yufang;LIU Xinyan;CHEN Lin;LI Xiaojing;FU Hao;WANG Jiang(Aba Teachers University,Wenchuan Sichuan 623002,China)
出处
《辽宁化工》
CAS
2024年第8期1186-1189,1194,共5页
Liaoning Chemical Industry
基金
国家级大学生创新创业训练计划(项目编号:S2023106460022
S2023106460036
S2023106460012)。
关键词
超声提取
绿茶
缓蚀剂
正交实验
Ultrasonic extraction
Green tea
Corrosion inhibitor
Orthogonal experiment
