Phobic surfaces exhibit high resistance to fouling

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phobic surfaces exhibit high resistance to fouling over a 184 J Sol-Gel Sci Technol (2010) 54:174–187 123
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6-month period. However, after periods exceeding 2 months under ocean conditions, the films show limited anti-fouling properties [ 106 ]. 6 Conclusion Inorganic component of hybrid coatings is selected to form the network for the film, while the organic component is selected to repel water and fill porosity in brief. The hybrid coatings have excellent mechanic strength and good adhesion to metal substrates. The hybrid coatings doped with slow release of corrosion inhibitors provide long-term anticorrosion of metals. Super-hydrophobic coatings derive from low surface tension and surface roughness of hybrid coatings. Although super-hydrophobic coatings need to prolong their durable property, they provide a brilliant perspective to fight corrosion of metals. It is obvious that combination of these techniques can provide superior anti-corrosion. An ideal model of multiple hybrid coatings for anti-corrosion of metals is proposed here: Metal substrate þ Hybrid coatings (doped with slow release of corrosion inhibitors) þ Super-hydrophobic coating The schematic flow chart of the ideal multiple hybrid coatings model is shown in Fig. 4 . Super-hydrophobic coatings repulse the corrosive spe- cies such as water, ions to reach the surface of underlying hybrid coating within a certain period. Even if the super- hydrophobic coatings are damaged or their super-hydro- phobic properties disappear, prolonged release of corrosion inhibitors within the qualified hybrid coatings to damaged zones can confer active corrosion protection with a self- healing ability on demand. References 1. Dave BC, Hu X, Devaraj Y, Dhali SK (2004) J Sol-Gel Sci Technol 32:143–147 2. Anon (2007) Mater Perform 46(11):14–15 3. Zheludkevich ML, Miranda Salvado I, Ferreira MGS (2005) J Mater Chem 15:5099–5111 4. Brinker CJ, Scherer GW (1990) Sol–gel science: the physics and chemistry of sol–gel processing. Academic Press, San Diego, pp 787, 839–880 5. Ono S, Tsuge H, Nishi Y, Hirano S-I (2004) J Sol-Gel Sci Technol 29(3):147–153 6. Du YJ, Damron M, Tang G, Zheng H, Chu C, Osborne JH (2001) Prog Org Coat 41:226 7. Mosher BP (2006) Synthesis and characterization of sol–gel nanocomposites demonstrating enhanced mechanical properties. MSc Dissertation, North Carolina State University 8. Yuan J, Zhou S, Gu G, Wu L (2005) J Mater Sci 40(15):3927– 3932 9. Greegor RB, Blohwiak KY, Osborne JH, Krienke KA, Cherian JT, Lytle FW (2001) J Sol-Gel Sci Technol 20:35–50 10. Mayrand M, Quinson JF, Roisne V, Guyon H (1998) J Sol-Gel Sci Technol 13:779–782 11. Chang K-C, Lin H-F, Lin C-Y et al (2008) J Nanosci Nano- technol 8(6):3040–3049 12. Khramov AN, Balbyshev VN, Kasten LS, Mantz RA (2006) Thin Solid Films 514:174 13. Lamakaa SV, Montemorc MF, Galio AF, Zheludkevich ML, Trindade C, Dick LF, Ferreira MGS (2008) Electrochim Acta 53:4773–4783 14. Deflorian F, Rossi S, Fedrizzi L, Fedel M (2008) Prog Org Coat 63:338–344 15. Andreatta F, Aldighieri P, Paussa L, Di Maggio R, Rossi S, Fedrizzi L (2007) Electrochim Acta 52(27):7545–7555 16. Narita T, Kikuchi N, Kawasaki K, Ozaki Y (1996) J Ceram Soc Japan 104(6):504–509 17. Zheng SX, Lin YJ, Lv ZP (2008) Acta Polym Sin 10:979–984 18. Pellice SA, Fasce DP, Williams RJJ (2007) J Appl Polym Sci
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