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Photocuring paint for wood and preparation method thereof

A light-curing coating and wood technology, applied in the coating field, can solve the problems of strong odor and poor water resistance, and achieve the effects of low odor, good wear resistance and reduced odor

Inactive Publication Date: 2015-09-09
CHENGDU NASHUO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a light-cured coating for wood and a preparation method thereof, to improve the existing light-cured coatings with poor water resistance and relatively large odors.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] In parts by weight, the following components are used:

[0022] 40 parts of epoxy acrylate, 20 parts of polyurethane acrylate, 3 parts of fluorinated acrylate, 2 parts of modified nano titanium dioxide, 5 parts of nano filler, 25 parts of special diluent, 2 parts of cationic photoinitiator, 5 parts of dispersant, 0.5 parts of thickener, 7 parts of leveling agent, 9 parts of defoamer and 25 parts of anti-wear agent.

[0023] Cationic photoinitiator: The characteristic of cationic photoinitiator is that photoactivation makes the molecule go to the excited state, the molecule undergoes a series of decomposition reactions, and finally produces a super strong protonic acid (also called Bronsted acid or Lewis acid), which is used as the active species of cationic polymerization And initiate the polymerization such as epoxy acrylate.

[0024] Dispersant: A dispersant is a surfactant that has two opposite properties of lipophilicity and hydrophilicity in the molecule. It can ...

Embodiment 2

[0036] In parts by weight, the following components are used:

[0037] 70 parts of epoxy acrylate, 60 parts of polyurethane acrylate, 6 parts of fluorinated acrylate, 8 parts of modified nano titanium dioxide, 15 parts of nano filler, 40 parts of special diluent, 5 parts of cationic photoinitiator, 8 parts of dispersant, 1 part of thickener, 10 parts of leveling agent, 13 parts of defoamer and 32 parts of anti-wear agent.

[0038] Among them, the modified nano-titanium dioxide is selected from tetraethyl orthosilicate; the special diluent is selected from benzene-free monomer TPGDA; the cationic photoinitiator is selected from diaryliodonium salt I-250; the dispersant is selected from LBD-1; the thickener is selected from polyethylene Alcohol; leveling agent is selected from alkyl modified organosiloxane; defoamer is selected from emulsified silicone oil; anti-wear agent is selected from nano silicon dioxide.

[0039] Present embodiment also provides a kind of method for prep...

Embodiment 3

[0044] In parts by weight, the following components are used:

[0045] 45 parts of epoxy acrylate, 50 parts of polyurethane acrylate, 5 parts of fluorinated acrylate, 4 parts of modified nano titanium dioxide, 10 parts of nano filler, 30 parts of special diluent, 3 parts of cationic photoinitiator, 7 parts of dispersant, 1 part of thickener, 8 parts of leveling agent, 10 parts of defoamer and 28 parts of anti-wear agent.

[0046] Among them, the modified nano titanium dioxide uses a silane coupling agent containing double bonds; the special diluent chooses benzene-free monomer TMPTA; the cationic photoinitiator chooses triarylsulfonium salt photoinitiator I-160; the dispersant chooses Silok-7117W; Polyacrylate copolymer emulsion is used as the thickener; alkyl modified organosiloxane is used as the leveling agent; polyoxypropylene glyceryl ether is used as the defoamer; nano-silica is used as the wear-resistant agent.

[0047] Present embodiment also provides a kind of method f...

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Abstract

The invention provides a photocuring paint for wood, relating to the field of paints. The paint is prepared from the following components in parts by weight: 40-70 parts of epoxy acrylate, 20-60 parts of polyurethane acrylate, 3-6 parts of fluorinated acrylate, 2-8 parts of modified nano titanium dioxide, 5-15 parts of nano filler, 25-40 parts of special-type diluter, 2-5 parts of cationic photoinitiator, 5-8 parts of dispersing agent, 0.5-1 part of thickener, 7-10 parts of leveling agent, 9-13 parts of defoaming agent and 25-32 parts of anti-wear agent. The photocuring paint for wood has the advantages of favorable water resistance and low odor. The invention also provides a method for preparing the paint, which has the advantages of simple steps and high operability.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a light-curing coating for wood and a preparation method thereof. Background technique [0002] Light-curing coatings, also known as photosensitive coatings, are coatings that use ultraviolet light as the curing energy source. They can be quickly cured into films on flammable substrates such as paper, plastic, leather, and wood without heating. Light-curing coatings are widely used in the wood industry due to their fast curing speed, high-quality coating film, and the ability to coat heat-sensitive substrates. [0003] However, the existing light-cured coatings for wood have poor water resistance, and the irritating smell is also relatively large after coating construction. Contents of the invention [0004] In view of this, the present invention provides a photocurable coating for wood and a preparation method thereof, so as to improve the existing problems of poor water resistance an...

Claims

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Application Information

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IPC IPC(8): C09D163/10C09D175/14C09D7/12
Inventor 黄波
Owner CHENGDU NASHUO TECH