• 文献标题:   Graphene oxide modified by zirconium dioxide to enhance the corrosion resistance of Zinc/Aluminum coatings
  • 文献类型:   Article
  • 作  者:   LIU SL, ZHU YS, ZHENG XP, LAI XY, JIA RN, YUAN XS
  • 作者关键词:   zn/al coating, graphene oxide, zirconium dioxide, corrosion resistance, intercalated structure
  • 出版物名称:   DIAMOND RELATED MATERIALS
  • ISSN:   0925-9635 EI 1879-0062
  • 通讯作者地址:   Changan Univ
  • 被引频次:   1
  • DOI:   10.1016/j.diamond.2020.107868
  • 出版年:   2020

▎ 摘  要

In order to improve the corrosion resistance and microhardness of Zinc/Aluminum coatings (Zn/Al coatings), ZrO2, GO and ZrO2 + GO hybrid nanofillers structures were introduced into the Zn/Al coatings respectively. The effect of nanofillers filled in the Zn/Al coatings on the structure, corrosion resistance and micro-hardness was analyzed. The gamma-(2, 3-epoxy propylene oxide) propyltrimethoxysilane (KH-560) was used to modify the surface of nanofillers. The results from FT-IR, XRD and XPS revealed that the KH-560 was successfully grafted onto the surface of nano-fillers. Electrochemical test showed that the nanofillers structure could significantly improve the corrosion resistance of Zn/Al coatings. Compared with ZrO2 nanoparticles, GO was more effective in shielding the corrosive medium. The ZrO2 + GO hybrid nanofillers structure achieves a synergistic effect, showing the best corrosion resistance of all the coatings. In the microhardness test, the introduction of nanofillers structure significantly improved the hardness of Zn/Al coatings, and ZrO2 + GO hybrid coatings showed the highest hardness value.