A stable and transparent superhydrophobic or superamphiphobic coating and its preparation method and application

Abstract

The invention belongs to the field of super-amphiphobic materials, and discloses a stable and transparent super-hydrophobic or super-amphiphobic coating as well as a preparation method and the application thereof. The preparation method for the coating comprises the steps as follows: blending nanoparticles, epoxy resin with a solvent to obtain the epoxy resin hybridization solution; dissolving fluorine-containing substances and a catalyst into a solvent to obtain the fluorine-containing solution; spraying the epoxy resin hybridization solution on the surface of a substrate, drying the substrate for 0.5-5 h at the temperature of 80-130 DEG C, spraying the fluorine-containing solution on the surface of the substrate, drying the substrate for 0.5-5 h at the temperature of 80-130 DEG C after the solvent is volatilized, and finally washing the surface of the substrate by using the solvent, so as to obtain the stable and transparent super-hydrophobic or super-amphiphobic coating. The super-hydrophobic or super-amphiphobic coating can be applied to hydrophobic and oleophobic modification of surfaces of the vast majority of substrates.

Description

technical field [0001] The invention belongs to the field of super-amphiphobic materials, and in particular relates to a stable and transparent super-hydrophobic or super-amphiphobic coating and a preparation method and application thereof. Background technique [0002] Due to its unique hydrophobic and oleophobic properties, superamphiphobic surfaces can be applied in many fields. The superamphiphobic surface has a self-cleaning function and can be used for solar panels or some mirrors that need to be kept clean, such as the surface of a gas cooker. Furthermore, the formation of a superamphiphobic surface on the metal surface can also greatly improve the corrosion resistance of the metal surface. In addition, if a super-amphiphobic surface is built on the wire or high-voltage power grid, it can prevent the wire from forming a frozen layer on the surface of the ice storm or snowstorm, which will cause a short circuit and cause a large-scale power outage to stop production, ...

AI Technical Summary

Problems solved by technology

This method requires the preparation of block copolymers with complex processes and harsh assembly conditions

[0006] The Chinese patent application with the application number 201110266897.9 proposes a method of blending fluorine-containing silicon-containing copolymers and silicon dioxide to form a film on the surface containing active groups, which can endow the surface with good super-amphiphobic properties , this method uses more fluorine-containing silicon-containing copolymers, and requires blending and assembly reactions when used, and the process is more complicated

[0007] Although in recent years, there have been many reports on the use of fluoropolymers to construct super-amphiphobic surfaces, but most of the fluoropolymers reported in the literature have weak adhesion between the surface of the substrate, which leads to the construction of super-amphiphobic surfaces. The hydrophobic surface has disadvantages such as instability, friction resistance, and poor washing resistance. At the same time, the construction methods of super-amphiphobic materials mentioned in most literatures are complicated and costly.

And because a coating with a general crosslinking effect cannot be provided, the super-amphiphobic coatings in most patents can only be aimed at a specific field, and its application is narrow