A high-performance antifouling and easy-to-clean film and its preparation method

Abstract

The present invention discloses a high-performance antifouling and easy-to-clean film and a preparation method thereof. Materials for preparing the cleaning film are prepared from a main film-formingsubstance, a catalyst, a crosslinking agent, and a solvent, wherein the main film-forming substance is an inorganic-organic hybrid polymer. In the preparation, the solvent is added to a reaction kettle, and the catalyst is added dropwise to adjust the pH to a predetermined range; then, the inorganic-organic hybrid polymer and the crosslinking agent are added in a metering ratio, and are uniformlystirred to obtain antifouling and easy-to-clean coating liquid. The coating liquid is uniformly coated on a substrate, and the solvent is volatilized, so as to form an antifouling and easy-to-clean film with a certain thickness by solidification. The main film-forming substance of the easy-to-clean film is the inorganic-organic hybrid polymer. The polymer contains a multi-dimensional hydrophobic,oleophobic F-C chain, and contains a large number of reactive functional groups that form a strong chemical bond with the surface of the substrate. Furthermore, a three-dimensional network structure can be formed by the action of the crosslinking agent, so that the film layer has excellent anti-friction performance, and has antifouling and easy-to-clean effects.

Description

technical field [0001] The invention relates to a high-performance antifouling, easy-to-clean film and a preparation method thereof. Background technique [0002] In daily life, glass is widely used because of its unique optical and mechanical properties, such as architectural glass, bathroom glass, automotive glass, kitchen and bathroom appliance glass, and display glass for electronic products such as mobile phones and computers. However, due to its structural characteristics, the surface of glass contains a large number of Si-O dangling bonds, so it is easy to absorb water. At the same time, the surface is not completely smooth, and there are microscopic depressions and protrusions. The microscopic irregularities are easy to adsorb various substances on the surface. Therefore, it is easy to be adhered by fingerprints, sweat, dust and other dirt during use, and at the same time, it is not easy to clean, and it is difficult to erase; thus seriously affecting the normal use ...

AI Technical Summary

Problems solved by technology

However, fluorocarbon resin films such as block copolymerized fluorinated acrylic resins have limited antifouling properties due to the low proportion of F-C bonds, while small molecule fluorosilanes have low film strength and low adhesion due to the steric hindrance effect of fluorocarbon chains. poor

[0006] Chinese patent CN104445218A prepares an easy-to-clean film by grafting fluorine-modified alkylsilane on the surface of silica particles, but the bond between the film and the substrate is not strong, the adhesion is not strong, and the friction resistance and washing resistance are poor.

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