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Two-component water-based matte finish varnish and preparation method thereof

A matt finish varnish, two-component technology

Active Publication Date: 2017-02-22
FIRST NEW MATERIAL TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitation of the characteristics of the matting powder material itself, it is difficult to disperse the matting powder in the polymer emulsion, and it is prone to sedimentation after long-term storage
Moreover, due to the poor transparency of the matting powder, it is easy to cause the problem of whitening the paint film and reducing the permeability

Method used

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  • Two-component water-based matte finish varnish and preparation method thereof
  • Two-component water-based matte finish varnish and preparation method thereof
  • Two-component water-based matte finish varnish and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The two-component water-based matte finish varnish of the present embodiment comprises A, B components, and each raw material of A, B components is as follows:

[0026]

[0027] In the above component A, Henkel 2800 emulsion is used for acrylic emulsion; polyurethane thickener SN-612NC is used as thickener; silicone defoamer BYK024 is used as defoamer; alcohol ester twelve is used as film-forming aid; Propylene glycol is used; in the above-mentioned component B, anhydrous calcium chloride is used as a flocculant; tap water is used as water.

[0028] The preparation method of the two-component water-based matte finish varnish of the present embodiment may further comprise the steps:

[0029] (1) Prepare component A, specifically: weigh the raw materials of component A according to the weight ratio, first add water to the container, add acrylic emulsion, film-forming aids, antifreeze and defoamer while stirring, 300- Stir at 500rmp for 5 minutes until uniform dispersi...

Embodiment 2

[0033] The two-component water-based matte finish varnish of the present embodiment comprises A, B components, and each raw material of A, B components is as follows:

[0034]

[0035] The above-mentioned acrylic emulsion adopts Henkel 2800 emulsion; the thickener adopts alkali swelling thickener TT935; the defoamer adopts organosilicon defoamer BYK024; Polyaluminum chloride; Water adopts tap water.

[0036] The preparation method of the two-component water-based matte finish varnish of the present embodiment may further comprise the steps:

[0037] (1) Prepare component A, specifically: weigh the raw materials of component A according to the weight ratio, first add water to the container, add acrylic emulsion, film-forming aids, antifreeze and defoamer while stirring, 300- Stir at 500rmp for 5 minutes until uniform dispersion, then add thickener, stir at 300-700rmp for 5 minutes and mix evenly to obtain component A;

[0038] (2) Preparation of component B, specifically: ...

Embodiment 3

[0041] The two-component water-based matte finish varnish of the present embodiment comprises A, B components, and each raw material of A, B components is as follows:

[0042]

[0043]

[0044] The above-mentioned acrylic emulsion adopts Henkel 2800 emulsion; the thickener adopts alkali swelling thickener ASE60; the defoamer adopts organosilicon defoamer BYK024; 35% polydimethyldiallylammonium chloride solution; tap water is used for water.

[0045] The preparation method of the two-component water-based matte finish varnish of the present embodiment may further comprise the steps:

[0046] (1) Prepare component A, specifically: weigh the raw materials of component A according to the weight ratio, first add water to the container, add acrylic emulsion, film-forming aids, antifreeze and defoamer while stirring, 300- Stir at 500rmp for 5 minutes until uniform dispersion, then add thickener, stir at 300-700rmp for 5 minutes and mix evenly to obtain component A;

[0047] (...

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Abstract

The invention discloses double-component water-based matte coating varnish and a preparation method thereof. The varnish comprises a component A and a component B, wherein the component A consists of the following components in percentage by mass: 60-90% of acrylic emulsion, 0.1-3.0% of a thickening agent, 0.1-2.0% of a defoaming agent, 3.0-8.0% of a coalescing agent, 0.5-6.0% of an antifreezing agent and 0.1-36% of water; and the component B consists of the following components in percentage by mass: 0.1-10.0% of a flocculating agent and 90.0-99.9% of water. According to the varnish, the component B contains the flocculating agent, so that the varnish film flatness is reduced and the glossiness is reduced as flocculation can be generated in an emulsion film-forming process of spraying the components A and B, the matte effect can be realized by not adding matting powder, and adverse effects caused by adding the matting powder are avoided; and especially, the component B containing the flocculating agent is separated from the component A containing the emulsion, the component B and the component A are simultaneously sprayed during use, so that a problem that the product storage stability is reduced when the component A and the component B are mixed is avoided.

Description

technical field [0001] The invention relates to the field of architectural coatings, in particular to a two-component water-based matte finish varnish with matte effect and a preparation method thereof. Background technique [0002] In order to further protect the exterior wall coating, the exterior wall architectural coating usually needs to be brushed with a clear varnish after construction, so as to improve the weather resistance, stain resistance and special decorative effect of the coating. Finish varnishes can be divided into water-based finish varnishes and oil-based finish varnishes by type. The main component of commonly used water-based varnish is polymer emulsion, which is characterized by smooth paint film and high gloss, and it is easy to produce light difference and blooming phenomenon in the process of large-scale construction. A water-based matte finish varnish can easily solve this problem. [0003] At present, the preparation method of water-based matte f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/00C09D7/12
CPCC08K3/16C08K5/053C08K2003/164C09D7/40C09D7/61C09D7/63C09D7/65C09D133/00C08L75/04C08K2003/162C08L39/00
Inventor 宫理想张淑平赵雅文刘东华
Owner FIRST NEW MATERIAL TECH DEV
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