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High-glossiness, scratch-resistant, wear-resistant and environment-friendly waterborne wood varnish and preparation method thereof

A wood varnish, high gloss technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of stability, self-thickening solid content, insufficient gloss retention, etc., achieve excellent mechanical properties, high efficiency , The effect of scratch resistance and wear resistance

Inactive Publication Date: 2014-06-18
中山蓝海洋水性涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of resin product has deficiencies in stability, self-thickening, solid content, gloss retention, etc.

Method used

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  • High-glossiness, scratch-resistant, wear-resistant and environment-friendly waterborne wood varnish and preparation method thereof
  • High-glossiness, scratch-resistant, wear-resistant and environment-friendly waterborne wood varnish and preparation method thereof
  • High-glossiness, scratch-resistant, wear-resistant and environment-friendly waterborne wood varnish and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A high-gloss, scratch-resistant, wear-resistant, environmentally friendly water-based wood varnish, consisting of the following components in percentage by weight:

[0054]

[0055]

[0056] First, add aromatic polyurethane dispersion and PUA emulsion into the dispersion tank, and carry out medium-speed dispersion. The speed of the medium-speed dispersion is 600-800r / min, and then evenly mix dispersant, nano-alumina anti-scratch and wear-resistant Additives and bamboo charcoal powder, after high-speed dispersion for 15-30 minutes, wherein the speed of high-speed dispersion is 1000-1500r / min, add anti-scratch wax additives, water, defoamer, wetting agent and other components, After dispersing at a medium speed for 30 minutes, take a sample to test the fineness and viscosity of the finished product. If the fineness of the finished product reaches ≤35um and the viscosity is 20-50mm 2 / s is a qualified product, and then filtered, canned, and packaged.

[0057] Test r...

Embodiment 2

[0059] A high-gloss, scratch-resistant, wear-resistant, environmentally friendly water-based wood varnish, consisting of the following components in percentage by weight:

[0060]

[0061] Preparation method is the same as embodiment 1

[0062] Test results: TVOC: 167g / L, paint film gloss: 85° (measured according to GB / T9754, 60°), scratch resistance: no scratches under GB / T9279 standard, abrasion resistance loss: 0.017g (750g / 500r).

Embodiment 3

[0064] A high-gloss, scratch-resistant, wear-resistant, environmentally friendly water-based wood varnish, consisting of the following components in percentage by weight:

[0065]

[0066] The preparation method is the same as in Example 1.

[0067] Test results: TVOC: 169g / L, paint film gloss: 85° (measured according to GB / T9754, 60°), scratch resistance: no scratch under GB / T9279 standard, wear resistance loss: 0.016g (750g / 500r).

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Abstract

The invention discloses a high-glossiness, scratch-resistant, wear-resistant and environment-friendly waterborne wood varnish. The waterborne wood varnish comprises the following components in percentage by weight: 35-45 percent of aromatic polyurethane dispersion, 30-40 percent of acrylic modified polyurethane emulsion, 0.1-0.3 percent of dispersion agent, 0.5-3 percent of scratch and wear resisting accessory, 1-2 percent of bamboo charcoal powder, 1-3 percent of scratch resisting wax additive, 0.1-0.8 percent of defoaming agent, 0.2-0.6 percent of wetting agent and 7-20 percent of water and other components. The invention further discloses a preparation method of the waterborne wood varnish. The preparation method comprises the following steps: adding the aromatic polyurethane dispersion and the acrylic modified polyurethane emulsion in a dispersing cylinder and dispersing at an intermediate speed; uniformly mixing the dispersion agent, the scratch and wear resisting accessory and the bamboo charcoal powder into the mixture; dispersing at a high speed for 15-30 minutes; adding the scratch resisting wax additive, the water, the defoaming agent, the wetting agent, a leveling agent and other components and dispersing at an intermediate speed for 40 minutes; and sampling and detecting the fineness and the viscosity of a finished product; and filtering, canning and packaging. The waterborne wood finish disclosed by the invention has the advantages of greatly-reduced VOC (Volatile Organic Compounds) content of products, high glossiness and favorable wear and scratch resisting performances.

Description

【Technical field】 [0001] The invention relates to a water-based wood varnish, in particular to a high-gloss, scratch-resistant, wear-resistant, and environmentally-friendly water-based wood varnish, and also relates to a preparation method of the high-gloss, scratch-resistant, wear-resistant, and environment-friendly water-based wood varnish. 【Background technique】 [0002] Oil-based wood coatings use various organic solvents such as benzene, ketones, esters, ethers, etc. as dispersion media. And during the drying process, it will continue to volatilize into the air or be absorbed by the human body, which will seriously damage the environment and harm human health. Water-based wood coatings use water as the dispersion medium, which completely eliminates the harm of organic solvents to the human body, and has incomparable advantages over traditional oil-based coatings, such as green, environmental protection, health, energy saving, etc. [0003] Since the early 1990s, develo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D175/14C09D7/12
Inventor 陈小文蒋建平肖国钦
Owner 中山蓝海洋水性涂料有限公司