三角枫叶提取物在HCl中对钢的缓蚀作用
Corrosion Inhibition of Acer Buergerianum Leave Extractive for Steel in HCl Solution
摘 要
从三角枫叶(Acer buergerianum)中提取出的固体物质,可以作为一种环境友好型植物缓蚀剂.本工作用失重法、Tafel极化曲线和电化学阻抗(EIS)法首次研究了三角枫叶提取物在1.0 mol/L HCl溶液中对冷轧钢的缓蚀作用.结果表明:三角枫叶提取物对冷轧钢具有良好的缓蚀作用,为混合抑制型缓蚀剂,在钢表面的吸附符合Langmuir吸附等温式；EIS谱呈半圆容抗弧,电荷转移电阻随缓蚀剂浓度的增加而增大.
盐酸
三角枫
缓蚀剂
吸附
提取物
steel
hydrochloric acid
acer buergerianum
inhibitor
adsorption
extractive
Abstract
Solid extracted from acer buergerianum leaves was investigated as a good environmental-friendly plant inhibitor.The inhibition effect of the plant extractive on the corrosion of cold rolled steel (CRS) in 1.0 mol/L HCl has been studied by weight loss,Tafel polarization and electrochemical impedence spectroscopy (EIS) methods.The results showed that the acer buergerianum leave extractive was a good inhibitor in hydrochloric acid for CRS,and the adsorption of the plant inhibitor on the CRS surface followed the Langmuir adsorption isotherm equation.Polarization curves showed that the plant inhibitor was a mixed-type inhibitor in hydrochloric acid.All EIS spectra exhibited one capacitive loop,and the charge transfer resistance increased with the increase of inhibitor concentration.
中图分类号 TG174.42
所属栏目 试验研究
基金项目 西南山地森林资源保育与利用省部共建教育部重点实验室(西南林学院)资助项目(200605Z);西南林学院产化工加工工程校级重点学科建设项目;西南林学院重点科研基金项目(200605z)
收稿日期 2009/5/16
修改稿日期 2009/6/15
网络出版日期
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备注李向红,副教授.
引用该论文: LI Xiang-hong,DENG Shu-duan,FU Hui,LIU Xiang-yi. Corrosion Inhibition of Acer Buergerianum Leave Extractive for Steel in HCl Solution[J]. Corrosion & Protection, 2010, 31(4): 287～290
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参考文献
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【2】李向红,邓书端,付惠,等.植物型缓蚀剂研究历程及展望[J].清洗世界,2008,24(10):23-30.
【3】Rajia P B,Sethuraman M G.Natural products as corrosion inhibitor for metals in corrosive media-A review[J].Materials Letters,2008,62:113-116.
【4】刘学虎,辛剑,马伟.海带提取液作为酸洗缓蚀剂的研究[J].腐蚀科学与防护技术,2003,15(3):172-174.
【5】李焰,赵澎,侯保荣.黄连提取物在1 mol/L HCl中对Q235的缓蚀作用[J].腐蚀科学与防护技术,2006,18(1):1-4.
【6】肖旭萍,李向红,付惠.撑绿杂交竹竹叶提取物在盐酸介质中对冷轧钢的缓蚀作用[J].清洗世界,2009,25(2):16-19.
【7】曹楚南.腐蚀电化学原理(第二版)[M].北京:化学工业出版社,2004:235-239.
【8】Abdel-Gaber A M,Khalii N,Abou Fetou A.The dissolution mechanism of steel in inorganic acids[J].Anti-Corrosion Methods and Materials,2003,50(6):442-447.
【9】Sekine I,Hirakawa Y.Effect 1-Hydroxyethylidene-1,1-diphosphonin acid on the corrosion of ss 41steel in 0.3% sodium chloride solution[J].Corrosion,1986,42(5):272-277.
【10】Hossain S A,Almarshad A I.Inhibiting effect of thiosemicarbazide on cold rolled steel[J].Corrosion Engineering Science and Technology,2006,41:77-81.
【11】Priya A R S,Muralidharan V S,Subramania A.Development of novel acidizing inhibitors for carbon steel corrosion in 15% boiling hydrochloric acid[J].Corrosion,2008,64(6):541-552.
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