4.7 Article

Durable superhydrophobic PVDF/FEVE/GO@TiO2 composite coating with excellent anti-scaling and UV resistance properties

期刊

CHEMICAL ENGINEERING JOURNAL
卷 411, 期 -, 页码 -

出版社

ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2021.128632

关键词

Superhydrophobic; Graphene oxide; Wear-resistance; UV resistance; Anti-scaling

资金

  1. Natural Science Foundation of Heilongjiang Province [LH2020E011]
  2. Heilongjiang Postdoctoral Fund [LBH-Z20124]
  3. National Science Fund for Distinguished Young Scholars [51925403]
  4. National Science Foundation of China [21676052]
  5. Northeast Petroleum University Youth Science Foundation [2019QNL-04]
  6. Northeast Petroleum University Scientific Research Foundation for Advanced Talents [2019KQ85]

向作者/读者索取更多资源

A robust superhydrophobic PVDF/FEVE/GO@TiO2 composite coating with high water contact angle and low sliding angle was successfully fabricated, showing excellent mechanical durability and chemical stability. The coating can maintain stability under strong acidic and alkaline conditions and inhibit the formation of CaCO3 scale.
Biomimetic superhydrophobic surfaces with excellent self-cleaning, antifouling and anticorrosion properties often suffer from mechanical damage and stop functioning when exposed to corrosive solutions or UV light in practical applications. In this study, a robust superhydrophobic PVDF/FEVE/GO@TiO2 composite coating with a high water contact angle of 158 +/- 1.6 degrees and low sliding angle of 6 +/- 0.5 degrees has been successfully fabricated via the combination of hydrothermal synthesis and spraying techniques. The GO@TiO2 composite particles were synthesized by in-situ growth of TiO2 on the GO surface through chemical condensation with the active sites of GO under hydrothermal conditions. Owing to the interfacial enhancement of GO@TiO2 and the adhesion enhancement of FEVE, the prepared superhydrophobic coating demonstrated excellent mechanical durability and retained its superhydrophobicity after 1000 abrasion cycles. Moreover, due to the orientation of lamellar GO, TiO2 was evenly distributed on the coating surface to construct uniform micro-/nanostructures, which can capture stable air film to prevent the permeation of H+, Cl-, OH- from water and simultaneously absorb more UV irradiation. Thus, the prepared coating demonstrated outstanding chemical stability under strong acidic and alkaline conditions for 7 days and after exposure to UV radiation (300 W) for 20 days. Furthermore, under the cooperative effect of the air film and hierarchical structures, the prepared superhydrophobic coating can inhibit the nucleation of CaCO3 scale and induce the formation of unstable needle-like CaCO3 on the coating surface. Therefore, it is anticipated that this durable superhydrophobic coating will be an excellent candidate for technological applications, such as anti-scaling, antifouling, and self-cleaning materials.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据