Fabrication and characterization of a TiO2/polysiloxane resin composite coating with full-thickness super-hydrophobicity

We present a simple approach for the fabrication of a full-thickness super-hydrophobic composite coating consisted of modified TiO 2 nanoparticles and polysiloxane resin. Scanning electron microscope (SEM), fourier transform infrared spectrometer (FTIR), contact angle meter and a simple self-made device were employed to characterize the surface morphologies, chemical compositions, contact angle and sliding angle of the modified TiO 2 nanoparticles and composite coating, respectively. Results show that for both the modified TiO 2 nanoparticles and the as-prepared composite coating the contact angle and sliding angle of is up to 152° and 0°, respectively. In addition, due to the coating design of full-thickness super-hydrophobicity, the composite coating also exhibited good thermal stability, abrasion resistance and corrosion resistance in the thermo-gravimetric analysis (TGA) experiment, abrasion test and immersion test, respectively.