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Bio-based water-borne wood coating and preparation method thereof

A wood coating and bio-based technology, applied in polyurea/polyurethane coatings, coatings, etc., can solve problems such as resource and energy shortages, environmental pollution, etc.

Pending Publication Date: 2020-12-29
珠海展辰新材料股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Bio-based coatings have the advantages of being green, environmentally friendly, and resource-saving, so they help solve the problems of resource and energy shortages and environmental pollution faced by global economic and social development.

Method used

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  • Bio-based water-borne wood coating and preparation method thereof
  • Bio-based water-borne wood coating and preparation method thereof
  • Bio-based water-borne wood coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～6

[0030] The raw material components and mass fractions of a kind of bio-based water-based wood coatings of embodiments 1-6 are listed in Tables 1-6 respectively. The preparation method of this bio-based water-based wood coatings comprises the following steps:

[0031] (1) Put the water-based bio-based film-forming substance into the dispersion tank, add the defoamer, substrate wetting agent and wetting and dispersing agent in order, and stir and disperse for 15 minutes at a speed of 600-800r / min; (2) Slowly add the pigment, matting aid, hand feeling aid and anti-sagging aid; then add a thickener to increase the viscosity, and stir and disperse at a speed of 1000-1500r / min for 25-35min to make the fineness ≤25um and no shrinkage cavity; (3) After mixing the bio-based film-forming aid and deionized water, slowly add it into the dispersion tank under stirring at a speed of 600-800r / min, and then add the above-mentioned anti-scratch additive and leveling agent, use the thickener to...

Embodiment 2

[0034] Components and proportioning of Table 2 Example 2 (water-based bio-based semi-dull white flour)

[0035]

[0036]

Embodiment 3

[0037] Components and proportioning of Table 3 Example 3 (water-based bio-based bright white flour)

[0038]

[0039]

[0040] Components and proportioning of Table 4 Example 4 (water-based bio-based matte clear surface)

[0041]

[0042]

[0043] Components and proportioning of Table 5 Example 5 (water-based bio-based semi-matte clear face)

[0044]

[0045]

[0046] Components and proportioning of Table 6 Example 6 (water-based bio-based bright light clear face)

[0047]

[0048]

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Abstract

The invention provides a bio-based water-borne wood coating and a preparation method thereof. The bio-based water-borne wood coating is prepared from the following components in percentage by mass: 55-85% of a water-borne bio-based film-forming substance, 0.2%-1% of a defoaming agent; 0.2%-1% of a substrate wetting agent; 0.5%-3% of a wetting dispersant; 0-25% of a pigment; 0-3% of an extinction auxiliary agent; 0.2%-1% of a hand feeling auxiliary agent; 0.1%-0.5% of an anti-sagging auxiliary agent; 0.2%-1.0% of a thickening agent; 3%-6% of a bio-based coalescing agent; 1%-5% of a scratch-resistant auxiliary agent; 0.2%-1% of a leveling agent; 2%-10% of deionized water. The bio-based content is larger than 20%, the requirements of GB18581-2020 are met, and the properties such as the hardness, the adhesive force, the adhesion resistance, the scratch resistance and the chemical resistance of the product can meet the requirements of GB23999-2009.

Description

technical field [0001] The invention belongs to the field of water-based wood coatings, in particular to a bio-based water-based wood coating and a preparation method thereof. [0002] technical background [0003] As problems such as climate change and resource shortage become more and more serious, human beings gradually realize the importance of circular economy. Recently, as a concept of environmental protection and circular economy, bio-based coatings have been gradually known to people. Some domestic coating companies have launched some bio-based coatings in architectural coatings, which have achieved good social and economic benefits. However, water-based wood In terms of coatings, there is no such product to appear. [0004] Bio-based products are derived from plants and other renewable agricultural, marine and forestry materials and are an alternative to traditional petroleum-derived products. Biobased content refers to the percentage of biomass-derived carbon in a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/04C09D175/14C09D175/04C09D7/61C09D7/63C09D7/65C09D7/47C09D7/42
CPCC08K2003/2241C08K2201/014C08L2205/02C08L2205/035C09D133/04C09D175/04C09D7/42C09D7/47C09D7/61C09D7/63C09D7/65C08L75/14C08L83/04C08K5/06C08L83/12C08L23/12C08K3/22C08L33/04
Inventor 王维宏陈寿生王向科夏正明刘锋刘志刚
Owner 珠海展辰新材料股份有限公司
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