Fabrication of durable superhydrophobic surface through silica-dissolution-assisted etching template approach. (4th March 2021)

• Record Type: Journal Article
• Authors: Zhang, Yan; Zhu, Xinrui; Liu, Yujian
• Is Part Of: Surface engineering. Volume 37:Number 3(2021)
• Page Start: 318
• Page End: 324
• Publication Date: 2021-03-04
• Subjects: Superhydrophobic -- template method -- fabrication -- epoxy resin -- durability -- self-cleaning -- resilience -- photocatalysis degradation; Surfaces (Technology) -- Periodicals; Coatings -- Periodicals; 620.4405
• DOI: 10.1080/02670844.2020.1787726
• Languages: English
• ISSNs: 0267-0844

Abstract

ABSTRACT: A convenient fabrication approach is proposed for a durable superhydrophobic epoxy surface. By duplicating micro-rough topography of the template, covalently grafting with TiO2 nanoparticles, and treating with perfluorooctyltriethoxysilane, the surface shows superhydrophobicity with a high static contact angle (162.0°) and a low sliding angle (2.5°), respectively. And its WCA has hardly changed along with the pH value of solutions. Besides, the superhydrophobic property remains constant even after 144 h long-term UV radiation or 16 cycles of friction tests. The surface also exhibits superior self-cleaning resilience for organic contaminants of oleic acid, kerosene, lubricants, and vegetable oil by TiO2 photocatalysis degradation of pollution.