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Organic silicon hardening liquid with photocatalyst function and preparation method thereof

A technology of organosilicon and hardening fluid, applied in the direction of coating, etc., to achieve high transparency, ensure hardness and friction resistance, and excellent photocatalytic performance

Pending Publication Date: 2021-08-24
常州穗时新材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, photocatalyst technology has never had the opportunity to be applied in silicone hardening fluid formulations

Method used

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  • Organic silicon hardening liquid with photocatalyst function and preparation method thereof
  • Organic silicon hardening liquid with photocatalyst function and preparation method thereof
  • Organic silicon hardening liquid with photocatalyst function and preparation method thereof

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Embodiment Construction

[0026] The following clearly and completely describes the technical solutions in the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them.

[0027] The wetting and leveling agent used in the examples is BYK-333, and the rest of the raw materials are commercially available industrial products unless otherwise specified, and can be purchased through commercial channels.

[0028] Coating properties are measured using the following methods:

[0029] The hardness is measured by Chinese pencil according to the method of GB / T1730-1993, and the light transmittance is tested by UV-Vis spectrum. The PMMA board without coating is used as a blank.

[0030] (1) Synthesis and screening of titanium-containing methyl silicone resin

[0031] According to the proportion shown in Table 1, add deionized water and acidic catalyst into the reaction vessel, and stir evenly. After mixing the siloxane, ...

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Abstract

The invention relates to organic silicon hardening liquid with a photocatalyst function and a preparation method thereof The organic silicon hardening liquid with the photocatalyst function is prepared by mixing and dispersing the following raw materials in parts by weight: 10-25 parts of titanium methyl silicone resin, and 0-1 part of a curing agent; 20-50 parts of an alcohol solvent; 25-60 parts of butyl acetate; and 0.2-0.6 part of a wetting leveling agent. According to the preparation method, by controlling the hydrolytic condensation speed of the tetrabutyl titanate and the adding proportion of the tetrabutyl titanate and the siloxane monomer, in a siloxane network, the tetrabutyl titanate is subjected to hydrolytic condensation to form a titanium dioxide atom cluster, and the titanium dioxide atom cluster is chemically bonded in the resin through a Ti-O-Si bond, so that excellent photocatalytic performance can be shown, and high transparency of the coating is ensured. The whole coating is mainly composed of methyl silicone resin, so that the hardness and friction resistance of the cured coating are ensured, and the organic silicon hardening liquid is a novel surface-transparent hardening material.

Description

technical field [0001] The invention relates to the technical field of coatings, and more specifically relates to an organosilicon hardening liquid with a photocatalyst function and a preparation method thereof. Background technique [0002] The photocatalyst material represented by nano-titanium dioxide produces "hole-electron pairs" with strong epoxy oxidation effect under light excitation, which can play an excellent antibacterial, deodorizing, mildew-proof, and anti-fouling effect, and the effect is long-lasting. It has attracted widespread attention since its birth, and scientists began to use this phenomenon to prepare functional products such as self-cleaning coatings and antibacterial coatings more than ten years ago. However, due to the large refractive index of titanium dioxide and most of the film-forming resins, even if the particle size is reduced to the nanoscale, it cannot completely solve the problem of significant decrease in coating transparency (whitening)...

Claims

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Application Information

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IPC IPC(8): C09D183/04C08G77/06C08G77/04
CPCC08G77/04C08G77/06C09D183/04
Inventor 陈子辉林家祥李林芳
Owner 常州穗时新材料有限公司
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