山东科学 ›› 2014, Vol. 27 ›› Issue (5): 28-32.doi: 10.3976/j.issn.1002-4026.2014.05.006

• 论文 • 上一篇    下一篇

纳米SiO2三价铬彩色钝化膜材料的制备及其性能研究

刘秀玉,宋繁永,张涛,刘丰,李剑,朱英   

  1. 1山东省科学院新材料研究所,山东 济南 250014; 2山东省分析测试中心,山东 济南 250014
  • 收稿日期:2014-05-06 出版日期:2014-10-20 发布日期:2014-10-20
  • 基金资助:
    山东省自然科学基金 (ZR2010BQ029;ZR2010EL032)

Preparation of nanosized SiO2 trivalent chromium colorful passivation film and its performance investigation

LIU Xiu-yu,SONG Fan-yong ,ZHANG Tao,LIU Feng,LI Jian,ZHU Ying   

  1. 1. New Material Institute, Shandong Academy of Sciences, Jinan 250014, China; 2. Shandong Analysis and Test Center, Jinan 250014, China
  • Received:2014-05-06 Online:2014-10-20 Published:2014-10-20

摘要: 通过调整温度、时间和pH值,在钝化液中加入SiO2纳米材料,制备性能优良的纳米三价铬彩色钝化剂。采用中性盐雾实验(NSS)、扫描电子显微镜(SEM)、能谱分析(EDS)和X射线荧光(XRF)等方法对加入SiO2前后的钝化膜的耐腐蚀性能进行比较,同时对钝化膜的结构、化学成分和空间分布进行表征。NSS实验结果表明,加入SiO2纳米材料的三价铬钝化膜的耐腐蚀性能提高了1倍。

关键词: XRF, Zn, 三价铬, 钝化膜, 耐腐蚀性

Abstract: We prepared nanosized trivalent chromium colorful passivator through the adjustment of temperature, time, pH value, and nanosized SiO2 adding into passivation liquid. We also employed neutral salt spray tests (NSS), scanning electronic microscope (SEM), energy dispersive spectrometer (EDS), and Xray fluorescence (XRF) to compare corrosion resistance of passivators between SiO2 preadding and postadding. We further characterized structure, chemical constituent and spatial distribution of passivation film. NSS experimental results indicate that anti corrosion performance of trivalent chromium passivation film increases by one time through SiO2 nanomaterial adding.

Key words: trivalent chromium, passivation film, XRF, Zinc, corrosion resistance

中图分类号: 

  • TG174.4