Controlled hydrophilic/hydrophobic property of silica films by manipulating the hydrolysis and condensation of tetraethoxysilane

- The silica films exhibiting controllable and wide range wettability are prepared.
- Hydrophilic and hydrophobic groups on particles are controlled by one step method.
- The wettability of films can be changed from hydrophobicity to hydrophilicity.
- The change trend of contact angle is indicated by an equation.
- The silica film is useful for the wettability change of different materials surface.