Method for increasing wettability conversion rate of hydrophobic material coating

The invention provides a method for increasing wettability conversion rate of a hydrophobic material coating. The method comprises the following steps of: preparing oxide sol through a sol-gel method; doping metal or non-metal into the oxide sol to obtain doped oxide sol; performing thermal treatment to obtain oxide powder and depositing to form a film; and performing surface finish on a low-surface-energy substance to obtain a hydrophobic surface. The method is easy to operate and a process is easy to control; the prepared coating has higher hydrophobicity; and the wettability conversion rate of the coating is improved.