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Anti-cracking ultraviolet-cured coating system for solid-wood sheet material

A technology of anti-cracking and ultraviolet light, which is applied in the direction of coating, polyester coating, epoxy resin coating, etc., and can solve the problem of high comprehensive production cost

Active Publication Date: 2015-09-23
HUNAN JINHAI SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 3. The overall cost of production is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0057] 1. Preparation of water-based color-adding primer:

[0058] The water-based polyurethane acrylic resin, water-based auxiliary agent, water-based auxiliary solvent, etc. are sequentially put into the reaction kettle according to the mass ratio, and stirred at room temperature and low speed for 30 minutes to obtain the invented water-based color-adding primer.

[0059] 2. Preparation of UV flexible primer:

[0060] Put special modified acrylic resin, multifunctional urethane acrylate, hydroxyethyl methacrylate, ultrafine transparent powder, photoinitiator, etc. into the reaction kettle in sequence according to the mass ratio, heat to 50-70°C, and stir at high speed Just get the invented UV flexible primer in 2 hours.

[0061] 3. Preparation of UV hard primer:

[0062] Put the modified epoxy acrylic resin, modified polyester acrylic resin, dipropylene glycol diacrylate, hydroxyethyl methacrylate, ultrafine transparent powder, photoinitiator, etc. into the reaction ket...

Embodiment 1

[0067] The formula mass percent of water-based color-adding primer:

[0068] Water-based polyurethane acrylic resin: 88%

[0069] Water-based additives: 2%

[0070] Water-based co-solvent: 10%

[0071] Formula mass percent of UV flexible primer:

[0072] Specially modified acrylic resin: 60%

[0073] Multifunctional polyurethane acrylic resin: 10%

[0074] Hydroxyethyl methacrylate: 8%

[0075] Ultrafine transparent powder: 15%

[0076] Photoinitiator: 6%

[0077] Auxiliary: 1%

[0078] Formula mass percent of UV hard primer:

[0079] Modified epoxy acrylic resin: 49%

[0080] Modified polyester acrylic resin: 15%

[0081] Dipropylene glycol diacrylate: 10%

[0082] Hydroxyethyl methacrylate: 6%

[0083] Ultrafine transparent powder: 15%

[0084] Photoinitiator: 4%

[0085] Auxiliary: 1%

[0086] Formula mass percentage of UV topcoat:

[0087] Modified epoxy acrylic resin: 20%

[0088] High functionality urethane acrylate: 20%

[0089] Dipropylene glycol diac...

Embodiment 2

[0097] The formula mass percent of water-based color-adding primer:

[0098] Water-based polyurethane acrylic resin: 90%

[0099] Water-based additives: 2%

[0100] Water-based co-solvent: 8%

[0101] Formula mass percent of UV flexible primer:

[0102] Specially modified acrylic resin: 70%

[0103] Multifunctional urethane acrylate: 10%

[0104] Hydroxyethyl methacrylate: 8%

[0105] Ultrafine transparent powder: 5%

[0106] Photoinitiator: 6%

[0107] Auxiliary: 1%

[0108] Formula mass percent of UV hard primer:

[0109] Modified epoxy acrylic resin: 42%

[0110] Modified polyester acrylic resin: 20%

[0111] Dipropylene glycol diacrylate: 15%

[0112] Hydroxyethyl methacrylate: 10%

[0113] Ultrafine transparent powder: 10%

[0114] Photoinitiator: 2%

[0115] Auxiliary: 1%

[0116] Formula mass percentage of UV topcoat:

[0117] Modified epoxy acrylic resin: 25%

[0118] High functionality urethane acrylate: 20%

[0119] Dipropylene glycol diacrylate: 20...

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Abstract

The invention belongs to the field of ultraviolet-cured new materials, and particularly relates to a coating system which is mainly applied to the protection and the decoration of solid-wood sheet materials of a solid-wood floor, a multilayer solid-wood floor, a bamboo-wood floor and other solid-wood floors. The invention provides a coating system which is used for solving the problem that a paint film cracks as a sheet material cracks when the solid-wood sheet material is used in an environment of which the diurnal temperature difference is relatively large. An anti-cracking ultraviolet-cured coating system for a solid-wood sheet material consists of aqueous additive color priming paint, UV (ultraviolet) flexible priming paint, UV hard priming paint and UV surface paint. The UV flexible priming paint forms a paint film which is high in binding force and high in flexibility by means of the coloring and the adhesive force of the aqueous additive color priming paint; then the UV hard priming paint and the UV surface paint are coated, and are cured by ultraviolet light to respectively form films under the action of a light initiator, so as to form a multilayer coating film structure which is high in binding force, good in flexibility and high in interlayer adhesive force, and the characteristics of anti-cracking, high hardness and high scratch resistance are realized.

Description

technical field [0001] The invention belongs to the field of ultraviolet curing new materials. In particular, it relates to a coating system mainly used for the protection and decoration of solid wood panels such as solid wood floors, multi-layer solid wood floors, and bamboo wood floors. technical background [0002] Ultraviolet radiation curing technology is an increasingly mature and widely used green technology. The ultraviolet curing coatings produced by this technology are referred to as UV coatings. At present, more and more types of wood are used for flooring. After some wood types are UV-coated, cracking will occur on the surface of the board and the coating when used in an environment with a relatively large temperature difference between day and night. To solve this problem, we provide a An anti-cracking UV-curable coating system used on solid wood boards and its construction technology. [0003] Many UV coating companies have carried out related experiments. Ac...

Claims

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Application Information

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IPC IPC(8): C09D175/14C09D133/00C09D7/12C09D163/10C09D167/06
Inventor 刘立新王石青李祥陈国栋
Owner HUNAN JINHAI SCI & TECH
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