Anticorrosion coating for magnesium alloys: electrospun superhydrophobic polystyrene/SiO$_{2}$ composite fibers

Authors : Nesrin Horzum POLAT, Özlem KAP, Amir FARZANEH

Pages : 672-683

View : 18 | Download : 8

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Superhydrophobic nanocomposite coatings for magnesium surfaces with remarkable corrosion resistance were fabricated by electrospinning in the presence of fluorosilane-functionalized silica insert ignore into journalissuearticles values(SiO$_{2});$ nanoparticles. The effects of surface-modified silica insert ignore into journalissuearticles values(mod-SiO$_{2});$ nanoparticles on the superhydrophobicity and corrosion resistance of polystyrene insert ignore into journalissuearticles values(PS);/mod-SiO$_{2}$ fiber coatings were evaluated. The incorporation of the SiO$_{2}$ nanoparticles endows PS fibers with rough surfaces exhibiting a water contact angle insert ignore into journalissuearticles values(WCA); of 165$^{\circ}$. The surface wettability, corrosion resistance, and their relation to the inorganic content in the PS fibers and the contact angle of the composite coatings were explored. Analysis of the corrosion results confirmed that the PS/mod-SiO$_{2}$ coating protected the Mg surface from corrosion. In addition, PS fibers containing mod-SiO$_{2}$ nanoparticles showed improved hydrophobicity, and excellent corrosion resistance was achieved with PS fibers containing 4 wt% SiO$_{2}$ nanoparticles.
Keywords : AZ31 magnesium alloy, electrospinning, nanocomposite, polystyrene SiO 2, superhydrophobicity