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Superhydrophobicity, conductivity and anticorrosion of robust siloxane-acrylic coatings modified with graphene nanosheets
Uzoma, Paul C.; Liu, Fuchun; Xu, Long; Zhang, Zhichao; Han, En-Hou; Ke, Wei; Arukalam, I. O.
2019-02-01
Source PublicationPROGRESS IN ORGANIC COATINGS
ISSN0300-9440
Volume127Pages:239-251
AbstractThe effects of low-cost graphene nanosheets in organic coatings were investigated. The hydrophobic organic siloxane-acrylic resin was synthesized by solution polymerization of acrylic monomers while the graphene nanosheets were modified using fluorosilane, and applied on LY12 aluminum substrate via spraying and a two-step coating system. The superhydrophobic, conductive, anticorrosion, self-cleaning, oleophilic and physical behaviors were comprehensively characterized. The results obtained revealed that addition of modified graphene increases the surface conductivity >= 2 mu S/cm) and the water contact angle >= 152 degrees) with low sliding angle (<= 7 degrees). The polarization measurement showed a positive shift in the corrosion potential signifying an inhibition of the cathodic reaction. Also, the two-step coated sample gave a good corrosion protection barrier as further confirmed by the electrochemical impedance parameters. The coating revealed good resistance to dirt adhesion, and its superhydrophobic-oleophilic property offered a promising application in oil-water separation. The physical integrity of the coatings was not extensively affected including after 120 days of outdoor exposure to snowing, de-freezing and surface wetting.
KeywordSuperhydrophobic Graphene Organic coatings Aluminum Anticorrosion
Indexed BySCI
Language英语
WOS IDWOS:000456755300026
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/81412
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Uzoma, Paul C.,Liu, Fuchun,Xu, Long,et al. Superhydrophobicity, conductivity and anticorrosion of robust siloxane-acrylic coatings modified with graphene nanosheets[J]. PROGRESS IN ORGANIC COATINGS,2019,127:239-251.
APA Uzoma, Paul C..,Liu, Fuchun.,Xu, Long.,Zhang, Zhichao.,Han, En-Hou.,...&Arukalam, I. O..(2019).Superhydrophobicity, conductivity and anticorrosion of robust siloxane-acrylic coatings modified with graphene nanosheets.PROGRESS IN ORGANIC COATINGS,127,239-251.
MLA Uzoma, Paul C.,et al."Superhydrophobicity, conductivity and anticorrosion of robust siloxane-acrylic coatings modified with graphene nanosheets".PROGRESS IN ORGANIC COATINGS 127(2019):239-251.
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