周祉存,王婷婷,吴方,张培强,张静,于锦.三乙醇胺及三乙醇胺/尿素复配物对氧化锆转化膜性能的影响[J].表面技术,2017,46(7):173-177.
ZHOU Zhi-cun,WANG Ting-ting,WU Fang,ZHANG Pei-qiang,ZHANG Jing,YU Jin.Effects of Triethanolamine and Composite of Triethanolamine/Carbamide on Zirconia Conversion Film[J].Surface Technology,2017,46(7):173-177
三乙醇胺及三乙醇胺/尿素复配物对氧化锆转化膜性能的影响
Effects of Triethanolamine and Composite of Triethanolamine/Carbamide on Zirconia Conversion Film
投稿时间:2017-02-10  修订日期:2017-07-20
DOI:10.16490/j.cnki.issn.1001-3660.2017.07.029
中文关键词:  氧化锆转化膜  三乙醇胺  尿素  耐蚀性  硅醇  硅烷  附着力
英文关键词:zirconia conversion film  triethanolamine  carbamide  corrosion resistance  silanol silane  adhesion
基金项目:
作者单位
周祉存 沈阳工业大学理学院,沈阳 110870 
王婷婷 沈阳工业大学理学院,沈阳 110870 
吴方 沈阳工业大学理学院,沈阳 110870 
张培强 沈阳工业大学理学院,沈阳 110870 
张静 1.沈阳工业大学理学院,沈阳 110870;2.中国有色(沈阳)冶金机械有限公司,沈阳 110870 
于锦 沈阳工业大学理学院,沈阳 110870 
AuthorInstitution
ZHOU Zhi-cun School of Science,Shenyang University of Technology, Shenyang 110870, China 
WANG Ting-ting School of Science,Shenyang University of Technology, Shenyang 110870, China 
WU Fang School of Science,Shenyang University of Technology, Shenyang 110870, China 
ZHANG Pei-qiang School of Science,Shenyang University of Technology, Shenyang 110870, China 
ZHANG Jing 1.School of Science,Shenyang University of Technology, Shenyang 110870, China; 2.NFC (Shenyang) Metallurgical Machinery Co. Ltd, Shenyang 110870, China 
YU Jin School of Science,Shenyang University of Technology, Shenyang 110870, China 
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中文摘要:
      目的 为了提高钢铁表面氧化锆转化膜的耐蚀性。方法 以Q235钢片为研究对象,在基础成膜液中分别添加不同质量浓度的三乙醇胺及三乙醇胺与尿素复配物,制备氧化锆转化膜。通过Tafel极化曲线和交流阻抗探讨氧化锆转化膜在5%NaCl腐蚀液中的电化学行为,利用扫描电镜观察氧化锆转化膜的表面形貌,在氧化锆转化膜上涂不同底漆,采用划圈法测试漆膜的附着力。结果 在氧化锆基础成膜液中添加100 mg/L三乙醇胺所制得的氧化锆转化膜在5%NaCl腐蚀液中的自腐蚀电流密度为1.66×10−5 A/dm2,钝化区域最宽,阻抗最大,耐蚀性最好。用尿素代替50%三乙醇胺,其所制得的氧化锆转化膜在5%NaCl腐蚀液中的自腐蚀电位和自腐蚀电流密度变化不大,钝化区域略有加宽,但阻抗弧明显加大。在氧化锆基础成膜液中添加三乙醇胺及三乙醇胺与尿素复配物制得的氧化锆转化膜,分别经过2%硅醇封闭液和5%硅烷封闭液封闭处理后,与低表面处理环氧底漆和改性环氧底漆漆膜附着力为1级。结论 在基础成膜液中添加三乙醇胺和三乙醇胺与尿素复配物后可提高Q235钢耐蚀性,氧化锆转化膜分别经过2%硅醇封闭液和5%硅烷封闭液封闭处理后,均与低表面处理环氧底漆和改性环氧底漆保持良好的附着力。
英文摘要:
      The work aims to improve corrosion resistance of zirconia conversion film on steel.With Q235 steel sheets were studied as objects of study,a zirconia conversion film was preparedon the steel surface by adding containing different concentrations of triethanolamine or composite of triethanolamine/carbamide to the zirconium solution. Electrochemical behavior of the zirconia conversion film in 5% NaCl corrosive liquidwas discussed with polarization curves and electrochemical impedance spectroscopy. Morphology of the zirconia conversion film was observed with SEM. After coating the films with different primers, properties of zirconia conversion film was assessed by performing adhesion test by scratch. Forthe zirconia conversion film prepared by adding 100mg/L triethanolamine to zirconia basic film-forming liquid in 5% NaCl corrosive liquid, the self-corrosion current was 1.66×10−5 A/dm2, passivation areawaswidest, impedance was the highest and corrosion resistance was the best. However, for the zirconia conversion film made from carbamide instead of 50%triethanolaminein 5% NaCl corrosive liquid, the self-corrosion potential and current changed slightly, the passivation area was wider while impedance arc increased obviously. For the zirconia conversion filmprepared by adding triethanolamine and composite of triethanolamine/carbamide in zirconia basic film-forming liquid treated with 2% silanol confining liquidand 5% silane confining liquid, the adhesion to low-treated surfaceepoxy primer and modified epoxy primer coating was grade 1. The corrosion resistance of Q235 steel can be enhanced by adding triethanolamine or composite of triethanolamine/carbamide to the zirconium solution. After being treatedwith 2% silanol confining liquid and 5% silaneconfining liquid, respectively,the zirconia conversion film keeps good adhesion to low pretreated surface epoxy primer andmodified epoxy primer.
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