一种中性介质缓蚀剂的合成与性能评价
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- 英文论文题名：Synthesis and Performance Evaluation of a Corrosion Inhibitor in Neutral Medium
- 论文作者：程鹏 ; 黄先球 ; 张万灵 ; 付朝阳
- 英文论文作者：CHENG Peng ; HUANG Xian-qiu ; ZHANG Wan-ling ; FU Chao-yang ; Reasearch and Development Center of WISCO ; School of Chemistry &Chemical Engineering of Huazhong University of Science and Technology
- 年：2014
- 作者机构：武钢研究院;华中科技大学化学与化工学院;
- 论文关键词：中性水介质 ; 腐蚀 ; 缓蚀剂
- 英文论文关键词：neutral medium ; corrosion ; corrosion inhibitor
- 会议召开时间：2014-07-28
- 会议录名称：第十八届全国缓蚀剂学术讨论会论文集
- 语种：中文
- 分类号：TG174.42
- 学会代码：ZGHA
- 会议名称：第十八届全国缓蚀剂学术讨论及应用技术经验交流会
- 会议地点：中国四川成都
- 主办单位：中国腐蚀与防护学会缓蚀剂专业委员会
- 学会名称：中国腐蚀与防护学会缓蚀剂专业委员会
- 页数：4
- 文件大小：2835k
- 原文格式：O
- 会议级别：全国
摘要
以脂肪酸和氨基酸为原料,合成了一种中性介质缓蚀剂。采用静态挂片失重法和电化学方法研究了其在自来水介质中对Q235钢的缓蚀性能。结果表明,该缓蚀剂在自来水体系中对Q235钢具有良好的缓蚀效果;动电位极化曲线表明,该缓蚀剂属于阳极抑制型缓蚀剂,腐蚀电流密度随着缓蚀剂浓度的增大而减小,EIS表明缓蚀剂浓度的增加使得双电层电容减小,电荷传递电阻增大;缓蚀剂在Q235钢表面的吸附是符合Langmuir吸附模型的自发进行的物理吸附过程。
With fatty acid and amino acid as raw materials,a neutral medium corrosion inhibitor was synthesized.The inhibitory performance of corrosion inhibitor for corrosion of Q235 steel in neutral water medium was investigated by weight loss and electrochemical method.Results showed that the inhibitor has excellent inhibition efficiency for corrosion of Q235 steel in neutral water medium.Potentiodynamic polarization curves showed that the corrosion inhibitor is a anode type corrosion inhibitor,the corrosion current density decreased with increase in inhibitor concentration.Electrochemical impedance spectroscopy(EIS) revealed that electric double layer capacitors decreased and charge transfer resistance increased with increase in inhibitor concentration.The adsorption of corrosion inhibitor on the surface of Q235 steel is spontaneous physical adsorption process and in line with the Langmuir adsorption model.
With fatty acid and amino acid as raw materials,a neutral medium corrosion inhibitor was synthesized.The inhibitory performance of corrosion inhibitor for corrosion of Q235 steel in neutral water medium was investigated by weight loss and electrochemical method.Results showed that the inhibitor has excellent inhibition efficiency for corrosion of Q235 steel in neutral water medium.Potentiodynamic polarization curves showed that the corrosion inhibitor is a anode type corrosion inhibitor,the corrosion current density decreased with increase in inhibitor concentration.Electrochemical impedance spectroscopy(EIS) revealed that electric double layer capacitors decreased and charge transfer resistance increased with increase in inhibitor concentration.The adsorption of corrosion inhibitor on the surface of Q235 steel is spontaneous physical adsorption process and in line with the Langmuir adsorption model.
引文
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[2]程鹏,付朝阳.生物型缓蚀剂研究现状与展望[J].全面腐蚀控制,2011,25(9):11-15
[3]郑杰,王亚娜,章柏林,等.酸性、中性、碱性介质中植物型缓蚀剂的研究进展[J].腐蚀科学与防护技术,2011,23(1):103-106
[4]张大全.缓蚀技术研究进展及在能源工业中的应用[J].上海电力学院学报,2013,29(4):355-363
[5]CUI R,GU N,LI C.Polyaspartic acid as a green corrosion inhibitor for carbon steel[J].Materials and Corrosion,2011,62(4):362-369
[6]陈燕妮,卢云,吴昊.N-酰基氨基酸系列表面活性剂的合成和应用[J].化学研究与应用,2001,13(2):192-195
[7]曾平,谢维跃.N-酰基氨基酸型表面活性剂的合成与应用进展[J].应用科技,2008,24(16):13-17
[8]ZNINI M,CRISTOFARI G,MAJIDI L,et al.Green approach to corrosion inhibition of mild steel by essential oil leaves of aslerisciis graveo/ens(Forssk.)in sulphuric acid medium[J].Int J Electrochem Sci,2012,7:3959-3981
[9]徐小连,陈义庆,钟彬,等.中性介质中Q420qD高强桥梁钢的腐蚀行为[J].腐蚀科学与防护技术,2010,22(2).136-138