阅读说明：本技术 一种零voc水性内墙调色涂料组合物的制备与应用 (Preparation and application of zero-VOC (volatile organic compound) water-based interior wall toning coating composition ) 是由 桂中秀 沈飞腾 孙伟 于 2018-06-28 设计创作，主要内容包括：本发明提供了一种零VOC水性内墙调色涂料组合物,所述组合物制备配方包括以下重量份数的组分：成膜物质30～50重量份；颜料0～30重量份；填料30～50重量份；水性微细氧化聚乙烯蜡乳化液0.5～1.5重量份；增稠剂0-2重量份；分散剂0.5-1.5重量份；润湿剂0.1-0.5重量份；成膜助剂1.5～2.5重量份；其他助剂0.5～3.0重量份；以及可接受量的水。本发明的涂料组合物形成的涂料具有高环保性能、高效的抗甲醛功能、优异的调色功能,与各种系列色浆相容性好；本发明的涂料组合物形成的漆膜具有较高的硬度、优异的抗湿擦掉粉性能、抗指划发白性能、疏水性和耐污渍性能。(The invention provides a zero-VOC water-based interior wall toning coating composition, which comprises the following components in parts by weight: 30-50 parts by weight of a film forming substance; 0-30 parts by weight of a pigment; 30-50 parts by weight of a filler; 0.5-1.5 parts by weight of aqueous superfine oxidized polyethylene wax emulsion; 0-2 parts of thickening agent; 0.5-1.5 parts by weight of a dispersant; 0.1-0.5 part by weight of wetting agent; 1.5-2.5 parts by weight of a film-forming assistant; 0.5-3.0 parts by weight of other additives; and an acceptable amount of water. The coating formed by the coating composition has the advantages of high environmental protection performance, high-efficiency formaldehyde resistance, excellent color matching function and good compatibility with various series of color pastes; a paint film formed by the paint composition has higher hardness, excellent wet rub powder resistance, finger scratch whitening resistance, hydrophobicity and stain resistance.)

1. The zero-VOC water-based interior wall toning coating composition is characterized by comprising the following components in parts by weight:

wherein the average particle diameter of the particles in the aqueous fine oxidized polyethylene wax emulsion is 0.01-0.1 μm,

the pigment volume concentration of the zero-VOC water-based interior wall toning coating composition is 30-50%.

2. The zero-VOC aqueous interior wall tinting coating composition of claim 1, wherein the other adjuvants comprise the following components in parts by weight:

3. the zero VOC aqueous interior wall tinting coating composition of claim 2, wherein the defoamer is selected from: silicone based defoamers, mineral oil based defoamers, or combinations thereof;

the pH regulator is selected from: an organic alcohol amine pH adjuster, an inorganic pH adjuster, or a combination thereof.

4. The zero-VOC aqueous interior wall tinting coating composition of claim 3, wherein the weight ratio of silicone defoamer to mineral oil defoamer in the defoamer is from 1 to 1.5: 1 to 1.5.

5. The zero VOC aqueous interior wall tinting coating composition of claim 1, wherein the composition is free of antifreeze, preferably ethylene glycol antifreeze or propylene glycol antifreeze.

6. The zero-VOC aqueous interior wall tinting coating composition of claim 1, wherein the thickener is selected from the group consisting of: cellulose ether, polyurethane rheology modifier, inorganic bentonite or combination thereof;

the dispersant is selected from: sodium salts, ammonium salts, or combinations thereof;

the wetting agent is an alkyl ether type wetting agent:

the film-forming assistant is alcohol ester type film-forming assistant.

7. The zero-VOC aqueous interior wall tinting coating composition of claim 1, wherein the pigment is titanium dioxide;

the filler is selected from the group consisting of: wollastonite, silica, mica powder, talcum powder, calcined kaolin, nepheline powder, heavy calcium or a combination thereof.

8. The zero-VOC aqueous interior wall tinting coating composition of claim 1, wherein the film-forming material is an acrylic copolymer emulsion.

9. The zero-VOC aqueous interior wall tinting coating composition of claim 8, wherein the acrylic copolymer emulsion has a particle size distribution of 150 to 240nm and a glass transition temperature Tg of: 40-50 ℃, and the minimum film forming temperature MFFT of the acrylic copolymer emulsion is as follows: 40-50 ℃.

10. A method of preparing a zero VOC aqueous interior wall tinting coating composition as claimed in any one of claims 1 to 9, comprising the steps of:

(1) putting water into a dispersion tank, and controlling the rotating speed to be 300-500 revolutions per minute;

(2) adding the dispersing agent, the wetting agent, the defoaming agent and the thickening agent into a dispersing tank in sequence, and stirring for 3 +/-1 minutes;

(3) adding pigment and filler into a dispersion tank, increasing the rotating speed to 1200-1800 rpm, and dispersing at high speed for 15 +/-3 minutes;

(4) after high-speed dispersion, reducing the rotating speed to 600-800 revolutions per minute, adding water, and stirring for 3 +/-1 minutes;

(5) slowly adding the film forming substance, and stirring for 5 +/-2 minutes;

(6) then adding a film forming aid, and stirring for 3 +/-1 minutes;

(7) then adding the mildew preventive and the preservative in sequence, and stirring for 3 +/-1 minutes;

(8) slowly adding the aqueous superfine oxidized polyethylene wax emulsion, and stirring for 3 +/-1 minutes;

(9) adding the thickening agent, stirring for 3 +/-1 min, and adjusting the leveling property;

(10) then adding a pH regulator to reach the required pH value (the pH value is 8-10);

(11) and finally, adding water to adjust the viscosity to obtain the zero-VOC water-based interior wall toning coating composition.

Technical Field

The invention relates to the field of the toning technology and application of water-based interior wall paint, in particular to preparation and application of a high-environmental-protection zero-VOC water-based interior wall toning paint composition.

Background

Along with the development of the country and the world, the living abundance of substances is increased day by day, and the attention on the safety damage of harmful substances in living environment to the human body is stronger and stronger. In recent years, the development of water-based architectural coatings is changing day by day, and new technologies emerge endlessly. The demand on the functionality of the water-based architectural coating on the market is more and more, and various special functional properties of the coating are concerned by the broad consumer groups while paying attention to the environmental protection performance requirement of the coating.

The world in which we live is a colorful space, which gives the need for colorful coatings to decorate our homes, recreational malls, movie theaters, restaurants, and the like. The existing water-based dark-color toning paint needs to be added with a large amount of color paste for toning, so that the hydrophilic property of a paint film coating is stronger, and the excellent wet rubbing powder-falling property is always a challenge target of the water-based dark-color toning paint.

In summary, there is an urgent need in the art to develop a zero-VOC aqueous interior wall toning coating for building wall surfaces, and the product needs to meet the requirements of high environmental protection; excellent wet rub dusting resistance and finger scratch whitening resistance; the color paste has good color matching function and good compatibility with various series of color pastes; the hydrophobicity and the stain resistance are good, and the hardness of a paint film is high; and has high-efficiency anti-formaldehyde function.

Disclosure of Invention

The invention aims to develop a zero-VOC water-based interior wall toning coating composition which is used for building wall surfaces, so that the composition has excellent requirements on wet rubbing powder resistance and finger scratch whitening resistance, and simultaneously the product meets the requirements on high environmental protection, excellent formaldehyde resistance and excellent stain resistance.

The invention provides a zero-VOC water-based interior wall toning coating composition, which comprises the following components in parts by weight:

an acceptable amount of water is added to the water,

wherein the average particle diameter of the particles in the aqueous fine oxidized polyethylene wax emulsion is 0.01-0.1 μm,

the pigment volume concentration of the zero-VOC water-based interior wall toning coating composition is 30-50%.

In another preferred embodiment, the other auxiliary agent comprises the following components in parts by weight:

in another preferred embodiment, the defoaming agent is selected from: silicone based defoamers, mineral oil based defoamers, or combinations thereof;

the pH regulator is selected from: an organic alcohol amine pH adjuster, an inorganic pH adjuster, or a combination thereof.

In another preferred example, in the defoaming agent, the weight ratio of the organic silicon defoaming agent to the mineral oil defoaming agent is 1-1.5: 1 to 1.5.

In another preferred embodiment, the composition does not contain an antifreeze agent, preferably does not contain an ethylene glycol antifreeze agent or a propylene glycol antifreeze agent.

In another preferred embodiment, the thickener is selected from the group consisting of: cellulose ether, polyurethane rheology modifier, inorganic bentonite or combination thereof;

the dispersant is selected from: sodium salts, ammonium salts, or combinations thereof;

the wetting agent is an alkyl ether type wetting agent:

the film-forming assistant is alcohol ester type film-forming assistant.

In another preferred embodiment, the wetting agent is selected from the group consisting of: sodium alkyl ether sulfate, sodium alkyl phenol ether disulfonate, sodium alkyl benzene sulfonate, or combinations thereof.

In another preferred embodiment, the coalescing agent is a dodecanol ester-type coalescing agent.

In another preferred embodiment, the pigment is titanium dioxide;

the filler is selected from the group consisting of: wollastonite, silica, mica powder, talcum powder, calcined kaolin, nepheline powder, heavy calcium or a combination thereof.

In another preferred embodiment, the pigment is rutile type titanium dioxide

In another preferred embodiment, the film-forming material is an acrylic copolymer emulsion.

In another preferred embodiment, the acrylic copolymer emulsion has a particle size distribution of 150-240 nm, a glass transition temperature Tg of: 40-50 ℃, and the minimum film forming temperature MFFT of the acrylic copolymer emulsion is as follows: 40-50 ℃.

In a second aspect, the present invention provides a method for preparing a zero-VOC aqueous interior wall tinting coating composition according to the first aspect of the invention, the method comprising the steps of:

(1) putting water into a dispersion tank, and controlling the rotating speed to be 300-500 revolutions per minute;

(2) adding the dispersing agent, the wetting agent, the defoaming agent and the thickening agent into a dispersing tank in sequence, and stirring for 3 +/-1 minutes;

(3) adding pigment and filler into a dispersion tank, increasing the rotating speed to 1200-1800 rpm, and dispersing at high speed for 15 +/-3 minutes;

(4) after high-speed dispersion, reducing the rotating speed to 600-800 revolutions per minute, adding water, and stirring for 3 +/-1 minutes;

(5) slowly adding the film forming substance, and stirring for 5 +/-2 minutes;

(6) then adding a film forming aid, and stirring for 3 +/-1 minutes;

(7) then adding the mildew preventive and the preservative in sequence, and stirring for 3 +/-1 minutes;

(8) slowly adding the aqueous superfine oxidized polyethylene wax emulsion, and stirring for 3 +/-1 minutes;

(9) adding the thickening agent, stirring for 3 +/-1 min, and adjusting the leveling property;

(10) then adding a pH regulator to reach the required pH value (the pH value is 8-10);

(11) and finally, adding water to adjust the viscosity to obtain the zero-VOC water-based interior wall toning coating composition.

It is to be understood that within the scope of the present invention, the above-described features of the present invention and those specifically described below (e.g., in the examples) may be combined with each other to form new or preferred embodiments. Not to be reiterated herein, but to the extent of space.

Drawings

FIG. 1 shows the color paste compatibility chart of example 1.

FIG. 2 is a graph showing a comparison of wet rub dusting for example 1 and a commercial auction.

Detailed Description

The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. The experimental methods of the following examples, which are not specified under specific conditions, are generally determined according to national standards. If there is no corresponding national standard, it is carried out according to the usual international standards, to the conventional conditions or to the conditions recommended by the manufacturer. Unless otherwise indicated, all parts are parts by weight, all percentages are percentages by weight, and the molecular weight of the polymer is the number average molecular weight.

Unless defined or stated otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In addition, any methods and materials similar or equivalent to those described herein can be used in the methods of the present invention.

zero-VOC (volatile organic compound) water-based interior wall toning coating composition

The preparation formula of the zero-VOC water-based interior wall toning coating composition comprises the following components in parts by weight:

an acceptable amount of water is added to the water,

wherein the average particle diameter of the particles in the aqueous fine oxidized polyethylene wax emulsion is 0.01-0.1 μm,

the pigment volume concentration of the zero-VOC water-based interior wall toning coating composition is 30-50%.

The other auxiliary agents comprise the following components in parts by weight:

in the present invention, the defoaming agent is selected from: silicone based defoamers, mineral oil based defoamers, or combinations thereof; the pH regulator is selected from: an organic alcohol amine pH adjuster, an inorganic pH adjuster, or a combination thereof.

The defoaming agent comprises:

1.0-1.5 parts by weight of an organosilicon defoaming agent; and

1.0-1.5 parts by weight of mineral oil defoaming agent.

Preparation method

A preparation method of a zero-VOC water-based interior wall toning coating composition comprises the following steps:

(1) putting water into a dispersion tank, and controlling the rotating speed to be 300-500 revolutions per minute;

(2) adding the dispersing agent, the wetting agent, the defoaming agent and the thickening agent into a dispersing tank in sequence, and stirring for 3 +/-1 minutes;

(3) adding pigment and filler into a dispersion tank, increasing the rotating speed to 1200-1800 rpm, and dispersing at high speed for 15 +/-3 minutes;

(4) after high-speed dispersion, reducing the rotating speed to 600-800 revolutions per minute, adding water, and stirring for 3 +/-1 minutes;

(5) slowly adding the film forming substance, and stirring for 5 +/-2 minutes;

(6) then adding a film forming aid, and stirring for 3 +/-1 minutes;

(7) then adding the mildew preventive and the preservative in sequence, and stirring for 3 +/-1 minutes;

(8) slowly adding the aqueous superfine oxidized polyethylene wax emulsion, and stirring for 3 +/-1 minutes;

(9) adding the thickening agent, stirring for 3 +/-1 min, and adjusting the leveling property;

(10) then adding a pH regulator to reach the required pH value (the pH value is 8-10);

(11) and finally, adding water to adjust the viscosity to obtain the zero-VOC water-based interior wall toning coating composition.

The invention has the advantages that:

1. has high formaldehyde resistance.

2. Has excellent color matching function and good compatibility with various series of color pastes.

3. Has excellent wet rub powder resistance and finger scratch whitening resistance.

4. Specific hydrophobicity, better stain resistance and higher hardness.

5. The paint film formed by the paint composition improves the quality of the interior wall toning paint product.