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UV finish paint as well as preparation method and application thereof

A topcoat and epoxy modification technology, applied in the field of coatings, can solve problems such as uneven curing of UV topcoats, photoinitiator migration, etc., to prevent outward migration, good light curing effect, wear resistance and adhesion excellent effect

Pending Publication Date: 2022-05-10
ZHEJIANG YASHA DECORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to overcome the problem of uneven curing of UV topcoats in the prior art and the migration of photoinitiators after the coating is cured, and provides a UV topcoat and its preparation method and application

Method used

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  • UV finish paint as well as preparation method and application thereof
  • UV finish paint as well as preparation method and application thereof
  • UV finish paint as well as preparation method and application thereof

Examples

Experimental program
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preparation example Construction

[0045] Preparation of epoxy-modified acrylate (E1):

[0046] (S.1) Under nitrogen protection, dissolve 2.08g (10mmol) tetraethoxysilane in 50ml toluene, add 3.76g (40mmol) dimethylchlorosilane and 0.5g ferric chloride to it, at 55°C After reacting for 8 hours, add 2 g of activated carbon therein, stir for 1 hour, and filter to evaporate the toluene in the filtrate to obtain the intermediate product A.

[0047] (S.2) Under nitrogen protection, take 3.28g (10mmol) of intermediate product A and dissolve it in 50ml of toluene, add 10mg of tris(pentafluorophenyl)borane, 0.43g (2mmol) of 4,4'-dihydroxydiphenyl Methanone and 7.65g (38mmol) polyethylene glycol 200, reacted at 35°C for 30min, then raised the temperature to 45°C, continued to mix and react for 3h, added 1g of activated carbon to it after the reaction, stirred and adsorbed for 30min, filtered, and distilled off the filtrate toluene to obtain the prepolymer B whose end group is hydroxyl.

[0048](S.3) Under the protecti...

Embodiment 1

[0082] A UV topcoat, including 40 parts of epoxy-modified acrylate E2, 40 parts of light-curing diluent isobornyl acrylate, 3 parts of antioxidant TPP, and 0.5 parts of leveling agent (BYK-327).

Embodiment 2

[0084] A UV topcoat, including 50 parts of epoxy-modified acrylate E2, 40 parts of light-curing diluent isobornyl acrylate, 3 parts of antioxidant TPP, and 0.5 parts of leveling agent (BYK-327).

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PUM

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Abstract

The invention relates to a UV finish paint and a preparation method and application thereof, the UV finish paint comprises the following components by weight: 40-60 parts of epoxy modified acrylate, 20-60 parts of a photocuring diluent and 2-6 parts of an auxiliary agent; wherein the epoxy modified acrylate has a branched or hyperbranched structure; the end group of each branched chain contains an epoxy group and an acrylate group; a photosensitive active group which can be used for initiating polymerization of an epoxy group and an acrylate group is also grafted on the branched chain. According to the invention, an acrylate group and an epoxy group are introduced into the same epoxy modified acrylate molecule at the same time, so that the hardness, wear resistance and adhesiveness of a coating obtained after curing are more excellent; therefore, a better photocuring effect can be realized at a lower concentration, and the photoinitiator can be fixed in the coating, so that the photoinitiator can be effectively prevented from being migrated outwards, and the influence on the health of a human body is prevented.

Description

technical field [0001] The invention relates to the field of coatings, and relates to a UV topcoat and a preparation method and application thereof. Background technique [0002] The development of society has led to industrialized prefabricated buildings gradually becoming the mainstream of the contemporary interior decoration industry. Industrialized prefabricated buildings are modularized, customized, efficient and green. Based on the above characteristics of industrial assembly, the corresponding base material also requires modularization, customization, high efficiency, and green requirements. This inevitably requires that the raw materials used in the production process of the material also need to have the above characteristics. [0003] Glass magnesium fireproof board is the most basic intermediate material in interior decoration. It needs to be surface decorated before it can be officially used. Therefore, the use of glass magnesium fireproof board is the same as t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D171/02C08G65/336C08G65/331C08G65/332
CPCC09D171/02C08G65/336C08G65/331C08G65/3322
Inventor 丁欣欣丁泽成周东珊胡耀清彭伟
Owner ZHEJIANG YASHA DECORATION