3-(4-氯苯亚甲基-)氨基-1,2,4-三唑在盐酸溶液中对5052铝合金的缓蚀作用
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- 英文论文题名：Effect of 3-(4-Chlorophenyl Methylene-) Amino-1,2,4-Triazole on Corrosion of 5052 Aluminum Alloy in Hydrochloric Acid Solution
- 论文作者：朱麟 ; 杨文忠
- 英文论文作者：ZHU Lin ; YANG Wen-zhong ; School of Science ; Nanjing University of Technology
- 年：2012
- 作者机构：南京工业大学理学院;
- 论文关键词：盐酸溶液 ; 铝合金 ; 缓蚀剂 ; 极化 ; 电化学阻抗
- 英文论文关键词：hydrochloric acid ; aluminum alloy ; ppolarization ; electrochemical impedance spectroscoy ; corrosion inhibition
- 会议召开时间：2012-07-25
- 会议录名称：第十七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：第十七届全国缓蚀剂学术讨论及应用技术经验交流会
- 会议地点：中国重庆
- 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：5
- 文件大小：2200k
- 原文格式：O
- 会议级别：全国
摘要
以对氯苯甲醛和3-氨基-1,2,4-三氮唑为原料合成了3-(4-氯苯亚甲基-)氨基-1,2,4-三唑(AT-S),采用核磁和红外的方法表征产物,表明产物是目标产物。采用静态失重法、动电位极化曲线法、电化学阻抗法和扫描电子显微镜等研究其在1 mol·L~(-1)盐酸溶液中对5052铝合金的缓蚀性能。结果表明,3-(4-氯苯亚甲基-)氨基-1,2,4-三唑在1 mol·L~(-1)盐酸溶液中对5052铝合金具有良好的缓蚀作用,在浓度为5 mmol·L~(-1)时,对5052铝合金的缓蚀效率高达98.4%。缓蚀剂的缓蚀效率随其浓度增加而增大;化合物AT-S为阴极抑制型缓蚀剂,在5052铝合金表面上的吸附符合朗格缪尔吸附。
3-(4- chlorophenyl methylene-) amino-1,2,4- triazole was synthesized by 4-Chlorobenzaldehyde and3-Amino-l,2,4-triazole.The product was characterized by H-NMR and IR methods.The inhibition effect of 3-(4-chlorophenyl methylene-) amino-1,2,4- triazole on the corrosion of 5052 aluminum alloy in 1 mol · L~(-1) HCl has been studied by weight loss measurement,ppolarization,electrochemical impedance spectroscopy(EIS) and scanning electron microscopy techniques(SEM).Results showed that 3-(4-chlorophenyl methylene-) amino-1,2,4- triazole is excellent inhibitor for 5052 aluminum alloy in 1 mol · L~(-1) HCl,the inhibition efficiency of the inhibitor would up to98.4%at the concentration of 5mmol / L and the inhibition efficiency increases with increasing in concentration of the compound AT-S.The inhibitor acted as cathodic-type inhibitor and the adsorption of the compound AT-S on the 5052 aluminum alloy surface obeys a Langmuir adsorption isotherm.
3-(4- chlorophenyl methylene-) amino-1,2,4- triazole was synthesized by 4-Chlorobenzaldehyde and3-Amino-l,2,4-triazole.The product was characterized by H-NMR and IR methods.The inhibition effect of 3-(4-chlorophenyl methylene-) amino-1,2,4- triazole on the corrosion of 5052 aluminum alloy in 1 mol · L~(-1) HCl has been studied by weight loss measurement,ppolarization,electrochemical impedance spectroscopy(EIS) and scanning electron microscopy techniques(SEM).Results showed that 3-(4-chlorophenyl methylene-) amino-1,2,4- triazole is excellent inhibitor for 5052 aluminum alloy in 1 mol · L~(-1) HCl,the inhibition efficiency of the inhibitor would up to98.4%at the concentration of 5mmol / L and the inhibition efficiency increases with increasing in concentration of the compound AT-S.The inhibitor acted as cathodic-type inhibitor and the adsorption of the compound AT-S on the 5052 aluminum alloy surface obeys a Langmuir adsorption isotherm.
引文
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[6]Ashassi-Sorkhabi H,Shabani B,Aligholipour B,et al.The effect of some Schiff bases on the corrosion of aluminum in hydrochloric acid solution[J].Applied Surface Science,2006,252:4039-4047.
[7]Slacheva E,Petkova G,Andreev P.Inhibition of corrosion of AZ91 magnesium alloy in ethylene glycol solution in presence of chloride anions[J].Mater Corros,2005,56(2):83.
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