Inorganic-organic hybrid super-hydrophilic self-cleaning coating and production method thereof

Abstract

The invention discloses an inorganic-organic hybrid super-hydrophilic self-cleaning coating and a production method thereof. The inorganic-organic hybrid super-hydrophilic self-cleaning coating is prepared from the following raw materials in percentage by weight: 60-90% of a solvent, 5-20% of a compound binder, 3-10% of a curing agent and 1-10% of a functional material. By adopting an inorganic-organic hybrid process, the inorganic-organic hybrid super-hydrophilic self-cleaning coating which is excellent in various performances such as hydrophilicity, dust resistance, pollution prevention, mildew resistance, weather resistance and durability is prepared. The coating is coated on the surface of a base material to form a concave-convex film of a micro-nano structure, so that the surface of the base material obtains the functions of hydrophilicity, dust resistance, pollution prevention, self-cleaning property and the like. The coating disclosed by the invention is suitable for large-area construction, has the advantages of high film forming hardness, high self-cleaning property, good wear resistance and good durability, and can be applied to surfaces of building external walls, glass, tiles, marbles, artificial stones, plastic, aluminum sheets, displays, walls and the like.

Description

technical field [0001] The invention relates to a self-cleaning coating and a production method thereof, in particular to an inorganic-organic hybrid superhydrophilic self-cleaning coating and a production method thereof. Background technique [0002] Since the concept of "self-cleaning" was proposed in the 1990s, its research and commercialization have developed rapidly. According to the different self-cleaning principles, self-cleaning coating materials can be divided into two types: super-hydrophobic and super-hydrophilic. They all achieve their own self-cleaning effect through the action of water. Super-hydrophobic coating materials take away pollutants through the rolling of water droplets to achieve a self-cleaning function similar to that of lotus leaves; while super-hydrophilic coating materials realize self-cleaning by forming a water film on its surface and taking away or isolating pollutants. cleansing effect. However, in the actual environment with a wide v...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the coating materials produced according to the methods reported in some patents have certain photocatalytic self-cleaning properties, but there are still many problems as self-cleaning coatings: (1) Traditional self-cleaning coatings use photocatalysts such as titanium oxide Catalytic materials are highly dependent on ultraviolet rays and light; (2) When traditional organic polymers are used as binders, due to the service life of the organic matter itself, the self-cleaning coating is prone to aging and damage, resulting in coating The service life is reduced; (3) Since the main pollution sources in China are dust, dust, yellow sand, carbon ash, and automobile exhaust, the traditional self-cleaning coating has a single structure and is easily covered by pollutants, which affects the self-cleaning of the coating Effect