Fabrication of Silica Nanoparticle-Based Transparent Superhydrophobic Coatings

摘要

One-step dip-coating process was employed to fabricate transparent superhydrophobic coating on the glass surface by using the mixture of silica nanopartilces and hexadecyltrimethoxysilane in anhydrous ethanol using triethylamine as hydrolysis catalyst. The water contact angle and optical transmittance were measured for samples using all particle-substrate combination. The results indicate that the superhydrophobicity and transparency of the obtained coatings depend on the aggregation states of silica nanoparticles, which are determined by the concentration of silica nanoparticle in the suspensions.