硫酸锰掺杂聚吡咯膜的制备和其耐腐蚀性能
Preparation and Corrosion Resistance of Manganese Sulfate Doped Polypyrrole Film
摘 要
采用直接接触氧化技术在不锈钢表面制备了硫酸锰掺杂聚吡咯膜。采用循环伏安曲线、显微形貌观察、动电位极化曲线和电化学阻抗谱研究了硫酸锰掺杂聚吡咯膜的微观形貌及耐腐蚀性能。结果表明：硫酸锰的掺杂改变了聚吡咯的结构，增强了膜结构的致密性，从而使硫酸锰掺杂聚吡咯膜具有较好的耐腐蚀性能，对不锈钢起到保护作用；与裸不锈钢相比，表面涂覆硫酸锰掺杂聚吡咯膜后，不锈钢的自腐蚀电位提高了约1.0 V，自腐蚀电流降低了约3个数量级。
硫酸锰
防腐蚀
聚吡咯
doping
manganese sulfate
corrosion resistance
polypyrrole (Ppy)
Abstract
Direct contact oxidation technology was used to prepare manganese sulfate doped polypyrrole film on the surface of stainless steel. The microstructure and corrosion resistance of manganese sulfate doped polypyrrole film were tested by cyclic voltammetry, microstructure observation, potentiodynamic polarization curve and electrochemical impedance spectroscopy. The results show that the doping of manganese sulfate changed the structure of polypyrrole and enhanced the compactness of film structure, which made the manganese sulfate doped polypyrrole film had good corrosion resistance and played a role in protection of stainless steel. Compared with the bare stainless steel, the free corrosion potential increased by about 1.0 V and free corrosion current density decreased by about 3 orders of magnitude after the surface of stainless steel covered with manganese sulfate doped polypyrrole film.
中图分类号 TG174 DOI 10.11973/fsyfh-201804008
所属栏目 试验研究
基金项目
收稿日期 2017/7/10
修改稿日期
网络出版日期
作者单位点击查看
联系人作者林琪(526673271@qq.com)
引用该论文: LIN Qi. Preparation and Corrosion Resistance of Manganese Sulfate Doped Polypyrrole Film[J]. Corrosion & Protection, 2018, 39(4): 286
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】侯保荣. 海洋腐蚀环境理论及其应用[M]. 北京:科学出版社,1998.
【2】LENDVAY-GYORIK G,MESZAROS G,LENGYEL B,et al. Electrochemical and quantum chemical studies on the formation of protective films by alkynols on iron[J]. Corrosion Science,2003,45(8):1685-1702.
【3】郭卫,刘瑞泉,王吉德,等. 一种酸洗缓蚀剂的合成及缓蚀性能研究[J]. 化学研究与应用,2004,16(6):851-853.
【4】周海晖,许岩,罗胜联,等. 我国防腐蚀涂料的现状及其发展[J]. 表面技术,2002,31(1):5-8.
【5】王少龙,龙晋明,王静. 低碳钢基体上电沉积聚苯胺膜及耐蚀性研究[J]. 腐蚀与防护,2004,25(4):142-146.
【6】MAHDAVIAN M,TEHRANI-BAGHA A R,HOLMBERG K. Comparison of a cationic gemini surfactant and the corresponding monomeric surfactant for corrosion protection of mild steel in hydrochloric acid[J]. J Surfact Deterg,2011,14:605-613.
【7】TANG L,LI X,MU G,et al. The synergistic inhibition between hexadecyl trimethyl ammonium bromide (HTAB) and NaBr for the corrosion of cold rolled steel in 0.5 M sulfuric acid[J]. J Mater Sci 2006,41(10):3063-3069.
【2】LENDVAY-GYORIK G,MESZAROS G,LENGYEL B,et al. Electrochemical and quantum chemical studies on the formation of protective films by alkynols on iron[J]. Corrosion Science,2003,45(8):1685-1702.
【3】郭卫,刘瑞泉,王吉德,等. 一种酸洗缓蚀剂的合成及缓蚀性能研究[J]. 化学研究与应用,2004,16(6):851-853.
【4】周海晖,许岩,罗胜联,等. 我国防腐蚀涂料的现状及其发展[J]. 表面技术,2002,31(1):5-8.
【5】王少龙,龙晋明,王静. 低碳钢基体上电沉积聚苯胺膜及耐蚀性研究[J]. 腐蚀与防护,2004,25(4):142-146.
【6】MAHDAVIAN M,TEHRANI-BAGHA A R,HOLMBERG K. Comparison of a cationic gemini surfactant and the corresponding monomeric surfactant for corrosion protection of mild steel in hydrochloric acid[J]. J Surfact Deterg,2011,14:605-613.
【7】TANG L,LI X,MU G,et al. The synergistic inhibition between hexadecyl trimethyl ammonium bromide (HTAB) and NaBr for the corrosion of cold rolled steel in 0.5 M sulfuric acid[J]. J Mater Sci 2006,41(10):3063-3069.
相关信息
