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High-performance quick-drying waterborne UV (ultraviolet) wood coating and preparation method thereof

A wood coating, fast-drying technology, applied in the field of coatings, can solve the problems of time-consuming and energy-consuming, low drying efficiency of water-based UV coatings, etc., and achieve the effect of low viscosity

Inactive Publication Date: 2019-02-15
JIANGSU HIMONIA TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The drying of solvent water is relatively time-consuming and energy-consuming, which makes the drying efficiency of water-based UV coatings relatively low. Improving the quick-drying performance of water-based UV wood coatings is particularly important for the application of this kind of coatings.

Method used

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  • High-performance quick-drying waterborne UV (ultraviolet) wood coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method of high-performance quick-drying water-based UV wood coating: add 44g of water to the reaction vessel, add 24g of acrylic acid, 4g of styrene, 7g of ethyl acrylate in turn, stir at 150r / min, add 8g of ammonium persulfate solution (mass concentration is 10%). Then, 96 g of remaining acrylic acid, 16 g of styrene, and 103 g of ethyl acrylate were added dropwise within 70-90 min. Add dropwise the remaining ammonium persulfate solution (mass concentration: 10%) 32g and KH550 36g within 90-110min. After the dropwise addition, adjust the temperature to 85 degrees Celsius and keep it warm for 4 hours. After the reaction is completed, filter to obtain an acrylic resin emulsion. After the resin emulsion is cooled, add 2% defoamer relative to the mass of the resin and 0.2% photoinitiator relative to the mass of the resin, 7 g of high-hardness water-soluble polyurethane powder, and stir for 10 min at a speed of 100 r / min.

Embodiment 2

[0028] A preparation method of a high-performance quick-drying water-based UV wood coating: add 96.4g of water to a reaction vessel, add 28g of acrylic acid, 4g of vinyl acetate, and 8g of butyl acrylate in turn, stir at a speed of 150r / min, and add 0.8g of persulfuric acid Ammonium solution (mass concentration is 10%). Then, 112 g of remaining acrylic acid, 16 g of styrene, and 71.6 g of ethyl acrylate were added dropwise within 70-90 min. Add the remaining ammonium persulfate solution (mass concentration: 10%) 3.2g and KH550 40g dropwise within 90-110min. After the dropwise addition, adjust the temperature to 85 degrees Celsius and keep it warm for 3 hours. After the reaction is completed, filter to obtain an acrylic resin emulsion . After the resin emulsion is cooled, add 1% defoamer relative to the mass of the resin and 0.2% photoinitiator relative to the mass of the resin, 5 g of high-hardness water-soluble polyurethane powder, and stir for 10 min at a speed of 100 r / min...

Embodiment 3

[0030] A preparation method of high-performance quick-drying water-based UV wood coating: add 8g of water to the reaction vessel, add 33g of acrylic acid, 11g of methyl acrylate, 11g of isooctyl acrylate, stir at 150r / min, add 8g of persulfuric acid Ammonium solution (mass concentration is 20%). Then, 102 g of remaining acrylic acid, 44 g of styrene, and 109 g of isooctyl acrylate were added dropwise within 70-90 min. Add 32 g of remaining ammonium persulfate (mass concentration: 20%) and 12 g of KH560 dropwise within 90-110 min. After the addition is complete, adjust the temperature to 80 degrees Celsius and keep it warm for 3 hours. After the reaction is completed, filter to obtain an acrylic resin emulsion. After the resin emulsion is cooled, add 4% defoamer relative to the mass of the resin, 0.4% photoinitiator relative to the mass of the resin, 7g of high-hardness water-soluble polyurethane powder, and stir at 100r / min for 10min.

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Abstract

The invention relates to a high-performance quick-drying waterborne UV (ultraviolet) wood coating. The high-performance quick-drying waterborne UV wood coating is prepared from acrylic resin emulsion,a defoaming agent, a photoinitiator and high-hardness water-soluble polyurethane, wherein the acrylic resin emulsion selectively comprises a hard monomer of acrylic acid, and a soft elastomer selected from one or more of ethyl acrylate, butyl acrylate and isooctyl acrylate; under the action of an initiator, organosilicone is added for crosslinking to obtain the high-solid content acrylic resin emulsion; the finally obtained wood coating has quick-drying performance and relatively good coating film hardness and wear resistance.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a wood coating. Background technique [0002] Water-based UV wood coatings take into account the advantages of both water-based coatings and UV coatings, with low viscosity, easy construction and transportation, and the film performance is close to that of similar UV coatings. However, compared with traditional UV coatings, which use water as a solvent, the coating drying process needs to go through evaporation and drying of solvent water and UV light-induced film-forming drying. The drying of solvent water is relatively time-consuming and energy-consuming, which makes the drying efficiency of water-based UV coatings relatively low. Improving the quick-drying performance of water-based UV wood coatings is particularly important for the application of such coatings. However, the coating performance of polyurethane is generally better. Appropriately introducing water-based polyurethane wit...

Claims

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Application Information

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IPC IPC(8): C09D133/02C09D175/04C09D125/14
CPCC09D125/14C09D133/02C08L75/04
Inventor 陈明贵龙玲徐建峰吴志飞
Owner JIANGSU HIMONIA TECH
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