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High-performance antifouling and easy-to-clean film and preparation method thereof

A clean film, high-performance technology, applied in antifouling/underwater coatings, biocide-containing paints, coatings, etc., can solve the problems of poor friction resistance and washing resistance, low film strength, and weak adhesion and other problems, to achieve the effect of good washing resistance, stable chemical performance and long service life

Active Publication Date: 2018-08-17
深圳市微思腾新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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  • High-performance antifouling and easy-to-clean film and preparation method thereof
  • High-performance antifouling and easy-to-clean film and preparation method thereof
  • High-performance antifouling and easy-to-clean film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Add 10 parts of water + 75 parts of ethanol into the reactor, then add dropwise glacial acetic acid to adjust the pH to 3.7, add 10 parts of inorganic-organic hybrid polymer, 3 parts of n-butyl titanate, and stir well. Get a stain-resistant, easy-to-clean coating fluid. Apply the coating solution obtained above evenly on the surface of the glass substrate (soda lime glass with a thickness of 2mm) by spraying method, and cure in an oven at 150°C for 10 minutes, and the film thickness is about 10nm, wherein the structural formula of the inorganic-organic hybrid polymer is :

[0029]

Embodiment 2

[0031] Add 20 parts of water + 39 parts of ethanol into the reaction kettle, then dropwise add hydrochloric acid to adjust the pH to 2.5, add 30 parts of inorganic-organic hybrid polymer, 10 parts of methyl orthosilicate, and stir evenly. Get a stain-resistant, easy-to-clean coating fluid. Apply the coating solution obtained above evenly on the surface of a glass substrate (soda lime glass with a thickness of 2mm) by spraying, and cure in an oven at 150°C for 10 minutes, and the film thickness is about 35nm. The structural formula of the inorganic-organic hybrid polymer is :

[0032]

Embodiment 3

[0034] Add 15 parts of water + 67 parts of ethanol to the reaction kettle, then add nitric acid dropwise to adjust the pH to 1.8, add 20 parts of inorganic-organic hybrid polymer, 7 parts of tetra-n-propyl zirconate, and stir well. Get a stain-resistant, easy-to-clean coating fluid. Apply the coating solution obtained above evenly on the surface of the glass substrate (soda-lime glass with a thickness of 2mm) by spraying method, and cure in an oven at 150°C for 10 minutes, and the film thickness is about 22nm, wherein the structural formula of the inorganic-organic hybrid polymer is :

[0035]

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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 and easy-to-clean film and a preparation method thereof. Background technique [0002] In daily life, glass is widely used due to 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. Microscopic irregularities can easily make various substances adsorb on the surface. Therefore, it is easy to be attached by fingerprints, sweat stains, dust and other dirt during use, and it is not easy to clean and erase; thus seriously affecting normal use and visual effects. [0003] In or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D185/00C09D183/08C09D5/16C09D7/63
CPCC09D5/1662C09D5/1675C09D183/08C09D185/00C09D7/63C08K5/10
Inventor 高乃心
Owner 深圳市微思腾新材料科技有限公司
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