Performance investigation of a new carbon-silver microspheres/epoxy resin superhydrophobic coating

Based on the reaction of AgNO 3 and dopamine-hydrochloride in the weak alkaline conditions, carbon-silver microspheres with layered structure were produced, which subsequently were surface-modified with 1H,1H,2H,2H-perfluorodecyltriethoxysilane to produce a superhydrophobic carbon-silver powder. By...

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Bibliographic Details
Published inSurface engineering Vol. 36; no. 6; pp. 565 - 573
Main Authors Zhao, Meiyun, Tian, Sen, Zhao, Xinze, Wu, Yang, Tan, Mingyi, Xing, Jing Tang
Format Journal Article
LanguageEnglish
Published London, England Taylor & Francis 02.06.2020
SAGE Publications
Subjects
Carbon-silver microsphere
chemical durability
superhydrophobic coating
surface topography
thermal stability
Carbon–silver microsphere
chemical durability
thermal stability
superhydrophobic coating
surface topography
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Summary:Based on the reaction of AgNO 3 and dopamine-hydrochloride in the weak alkaline conditions, carbon-silver microspheres with layered structure were produced, which subsequently were surface-modified with 1H,1H,2H,2H-perfluorodecyltriethoxysilane to produce a superhydrophobic carbon-silver powder. By using the advantage of high viscosity epoxy resin, this powder can be used to various nonmetal substrates to form robust superhydrophobic coatings. The hydrophobicity, surface morphology, chemical composition, mechanical stability, chemical durability, self-cleaning, antifouling and thermal stability are studied by means of the contact angle metre, scanning electron microscope, X-ray photoelectron spectroscope measurements, three-dimensional topography metre and thermal gravimetric analyses. The results indicate that the prepared powder can be applied to most nonmetal substrates to form excellent superhydrophobic coatings with very good comprehensive performance.
ISSN:0267-0844
1743-2944
DOI:10.1080/02670844.2018.1541297