A facile dip-coating process for preparing highly durable superhydrophobic surface with multi-scale structures on paint films

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DOIResolve DOI: http://doi.org/10.1016/j.cis,2009.05.061
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TypeArticle
Journal titleJournal of Colloid and Interface Science
Volume337
Issue2
Pages531537; # of pages: 7
SubjectSuperhydrophobic; Multi-scale structure; Epoxy paing; pH and solvent resistance; High speed scouring resistance
AbstractSuperhydrophobic surfaces with multi-scale nano/microstructures have been prepared on epoxy paint surfaces using a feasible dip-coating process. The microstructures with 5–10 µm protuberances were first prepared on epoxy paint surface by sandblast. Then the nanostructures were introduced on the microstructure surface by anchoring 50–100 nm SiO₂ particles (nano-SiO₂) onto the sandblasted paint surface, which was completed by dip-coating with a nano-SiO₂/epoxy adhesive solution (M1). At last the surface was further modified for enhancing hydrophobicity by another dip-coating with a solution of a low surface energy polymer, aminopropyl terminated polydimethylsiloxane (ATPS) modified epoxy adhesive (M2). The water contact angle of the as-prepared samples reached as high as 167.8° and the sliding angle was 7°. The prepared superhydrophobic surface exhibited excellent durability to the high speed scouring test and high stability in neutral and basic aqueous solutions and some common organic solvents. In addition, this method can be adopted to fabricate large scale samples with a good homogeneity of the whole surface at very low cost.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Institute for Chemical Process and Environmental Technology
Peer reviewedYes
NRC number52078
NPARC number15093655
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Record identifierd198ebd6-4cca-4059-ac1b-1282c30847b5
Record created2010-04-27
Record modified2016-05-09
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