阅读说明：本技术 一种薄涂型内墙面漆及其制备方法 (Thin-coating type interior wall paint and preparation method thereof ) 是由 王创标 于 2021-09-09 设计创作，主要内容包括：本发明涉及建筑物内墙面漆领域,具体公开了一种薄涂型内墙面漆及其制备方法,该薄涂型内墙面漆,按重量百分数计,由以下原料组成：水25％～30％、乳液30％～40％、钛白粉23％～27％、钙粉6％～10％、成膜剂1％～2％、防冻剂1％～2％、分散剂1％～1.5％、流平剂0.3％～1％、消泡剂0.1％～0.5％、羟乙基纤维素0.1％～0.3％、多功能助剂0.05％～0.15％、润湿剂0.05％～0.15％。本发明提供的薄涂型内墙面漆,易干燥,附着力强,涂膜丰满度高,有良好的流平性,不透底色、不发花,不易脱落,不起皮,有良好的抗渗透性,在粉刷建筑物内部墙体时,只需要在干燥的底漆漆膜上粉刷一遍该薄涂型内墙面漆,即可替代传统墙面在粉刷过程中至少粉刷2-3遍面漆才能达到的装饰效果,有效地缩短了装修工期,节约了装修成本。(The invention relates to the field of building interior wall paint, and particularly discloses thin-coating interior wall paint and a preparation method thereof, wherein the thin-coating interior wall paint comprises the following raw materials in percentage by weight: 25 to 30 percent of water, 30 to 40 percent of emulsion, 23 to 27 percent of titanium dioxide, 6 to 10 percent of calcium powder, 1 to 2 percent of film forming agent, 1 to 2 percent of antifreeze agent, 1 to 1.5 percent of dispersant, 0.3 to 1 percent of flatting agent, 0.1 to 0.5 percent of defoamer, 0.1 to 0.3 percent of hydroxyethyl cellulose, 0.05 to 0.15 percent of multifunctional additive and 0.05 to 0.15 percent of wetting agent. The thin-coating type interior wall finish provided by the invention is easy to dry, strong in adhesive force, high in coating fullness, good in leveling property, impermeable in ground color, free of floating, not easy to fall off, free of peeling and good in anti-permeability, and when the interior wall of a building is painted, the decorative effect which can be achieved by painting the finish for at least 2-3 times in the painting process of the traditional wall surface can be replaced by painting the finish for one time on the dried primer paint film, so that the decoration period is effectively shortened, and the decoration cost is saved.)

1. A thin-coating type interior wall finish comprises water, emulsion, titanium dioxide, a film forming agent and a dispersing agent, and is characterized by comprising the following raw materials in percentage by weight: 25 to 30 percent of water, 30 to 40 percent of emulsion, 23 to 27 percent of titanium dioxide, 6 to 10 percent of calcium powder, 1 to 2 percent of film forming agent, 1 to 2 percent of antifreeze agent, 1 to 1.5 percent of dispersant, 0.3 to 1 percent of flatting agent, 0.1 to 0.5 percent of defoamer, 0.1 to 0.3 percent of hydroxyethyl cellulose, 0.05 to 0.15 percent of multifunctional additive and 0.05 to 0.15 percent of wetting agent. The titanium dioxide is rutile type nano titanium dioxide. The emulsion is a mixture of styrene-acrylic odor-free emulsion, monomer modified water-based pure acrylic odor-free emulsion and organic siloxane modified emulsion, and the mass ratio of the emulsion to the water-based pure acrylic odor-free emulsion is 1:1: 1.

2. the thin-coating type interior wall finish according to claim 1, wherein the finish comprises the following components in percentage by weight: 27-28% of water, 35-36% of emulsion, 25-26% of titanium dioxide, 8-9% of calcium powder, 1-2% of film forming agent, 1-2% of antifreezing agent, 1.2-1.4% of dispersing agent, 0.5-0.7% of flatting agent, 0.3-0.4% of defoaming agent, 0.1-0.3% of hydroxyethyl cellulose, 0.1-0.12% of multifunctional auxiliary agent and 0.1-0.12% of wetting agent.

3. The thin-coating type interior wall finish according to claim 1, wherein the calcium powder has a particle size of 800-1200 meshes.

4. The thin-coating type interior wall finish according to claim 1, wherein the film forming agent is 2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, the anti-freezing agent is propylene glycol, the leveling agent is a thickening acetylene glycol nonionic surfactant, and the wetting agent is a polyoxyethylene alkylated ether.

5. The thin-coating type interior wall finish according to claim 1, wherein the dispersant is a mixture of a sodium hexametaphosphate solution with a mass concentration of 20% and a sodium polycarboxylate dispersant, and the mass ratio of the sodium hexametaphosphate solution to the sodium polycarboxylate dispersant is 1: 1.

6. the thin-coating type interior wall finish according to claim 1, wherein the defoaming agent is a mixture of a foam-suppressing type mineral oil defoaming agent and a foam-breaking type mineral oil defoaming agent, and the mass ratio of the foam-suppressing type mineral oil defoaming agent to the foam-breaking type mineral oil defoaming agent is 1: 1.

7. The thin-coating type interior wall finish paint as claimed in claim 1, wherein the multifunctional auxiliary is a multifunctional auxiliary mixture containing nano bamboo charcoal factors and organic-inorganic composite modified diatomite, and the mass ratio of the multifunctional auxiliary mixture to the organic-inorganic composite modified diatomite is 1: 1.

8. the thin-coating type interior wall finish paint according to claim 1, characterized in that the finish paint further comprises plant extracts and color paste in different weight percentages, wherein the addition amount of the plant extracts is 0-1%, and the addition amount of the color paste is 0-18%.

9. A method for preparing a thin coat type interior wall finish according to any one of claims 1 to 8, comprising the steps of:

(1) adding 4/5 water, 1/3 defoaming agent, dispersant, wetting agent and multifunctional auxiliary agent into the raw materials according to the proportion, mixing in a dispersion cylinder, and stirring and dispersing at the dispersion temperature of 20-40 ℃ and the rotation speed of 300-500 rpm for 10-15 minutes to obtain a uniformly dispersed mixture A;

(2) sequentially adding titanium dioxide and calcium powder into the mixture A obtained in the step (1), stirring and dispersing at the dispersion temperature of 40-60 ℃ at 800-1200 rpm, and grinding for 30-40 minutes to obtain a uniformly dispersed mixture B;

(3) sequentially adding an antifreezing agent, a film forming agent, an 1/3 antifoaming agent, a leveling agent and hydroxyethyl cellulose into the mixture B obtained in the step (2), and stirring and dispersing at the dispersion temperature of 40-60 ℃ and the rotation speed of 800-1200 rpm for 10-15 minutes to obtain a uniformly dispersed mixture C;

(4) and (4) adding the emulsion, 1/3 defoamer and 1/5 water into the mixture C obtained in the step (3) in sequence, stirring and dispersing at the dispersion temperature of 60-70 ℃ and at the speed of 80-120 rpm, and obtaining the thin-coating type interior wall finish when the viscosity of the system reaches 100-110 KU.

10. The thin-coating type interior wall finish paint according to claim 9, wherein plant extracts and/or color pastes are added in the step (4) for mixing and dispersing.

Technical Field

The invention relates to the field of preparation of building interior wall finish, in particular to thin-coating interior wall finish and a preparation method thereof.

Background

With the improvement of living standard of people, the living environment is continuously improved, and the interior decoration is luxurious and beautiful day by day. The paint is widely used as the building interior wall finish paint and consists of water, emulsion, pigment, filler, additive and the like. When the inner wall of a building is painted and decorated, the good decoration effect can be achieved only by painting finish paint for at least 2-3 times on a dried primer paint film under the limitation of the current paint raw materials and the paint preparation level.

At present, people research on finish paint mainly focuses on the aspects of radiation protection, environmental protection, pollution resistance, mould resistance, odor purification, bacteriostasis, heat preservation, heat insulation, noise reduction, wear resistance, scrub resistance, hardness, adhesive force, impact resistance, flexibility, smoothness, yellowing resistance and the like, and an interior wall finish paint product which is easy to construct and shortens the decoration period does not exist.

Chinese patent No. CN201410148959.X discloses a brightening interior wall latex paint, which is composed of pigment and filler with extremely high brightness, such as titanium dioxide, kaolin, aluminum silicate, heavy calcium, diatomite and the like according to a proportion relation, and a composite assistant water-soluble film forming material, water and the like, so that the paint has the highest brightness and covering power, and the problems of rough hand feeling, poor adhesion, easy falling, peeling and the like existing in the process of only painting one time of the finish paint on the basis of the primer paint are still not solved.

The primer is used as the foundation of the finish paint, is used for improving the adhesive force of the finish paint, increasing the fullness of the finish paint, improving the alkali resistance and the corrosion resistance of the finish paint, and simultaneously can ensure the uniform absorption of the finish paint. Chinese patent CN201811403037.3 (application number) discloses a high-covering-power high-sealing interior wall primer and a preparation method thereof, wherein the high-covering-power high-sealing interior wall primer comprises water, attapulgite, hydroxyethyl cellulose, a sterilization preservative, a dispersing agent and the like, and the high-sealing interior wall primer disclosed by the invention has excellent sealing performance, alkali resistance, adhesive force and high covering power, effectively seals alkaline substances of a substrate from permeating into a finish paint layer and improves the fullness of a finish paint film, but the problems of the covering power of the finish paint and the fullness of the paint film are not fundamentally solved.

Therefore, based on the background technology, the technical personnel in the field provide the thin-coating type interior wall finish, solve the problem that the existing interior wall finish needs to be painted for at least 2-3 times, effectively save the decoration cost and shorten the decoration period.

Disclosure of Invention

The first purpose of the invention is to provide the thin-coating type interior wall finish with high fullness of a paint film, fine and smooth hand feeling, good adhesion, difficult peeling and good anti-permeability through reasonable selection of raw materials and optimized design of a formula, when the interior wall of a building is painted, the thin-coating type interior wall finish only needs to be painted on a dry primer paint film for one time, and the decoration effect which can be achieved by painting the finish for at least 2-3 times in the painting process of the traditional wall surface can be replaced, the decoration construction period is effectively shortened, and the decoration cost is saved.

The second purpose of the invention is to provide a preparation method of the thin-coating type interior wall finish, which is simple and easy to operate.

In order to achieve the first object, the invention adopts the following technical scheme:

a thin-coating type interior wall finish comprises the following components in percentage by weight: 25 to 30 percent of water, 30 to 40 percent of emulsion, 23 to 27 percent of titanium dioxide, 6 to 10 percent of calcium powder, 1 to 2 percent of film forming agent, 1 to 2 percent of antifreeze agent, 1 to 1.5 percent of dispersant, 0.3 to 1 percent of flatting agent, 0.1 to 0.5 percent of defoamer, 0.1 to 0.3 percent of hydroxyethyl cellulose, 0.05 to 0.15 percent of multifunctional additive and 0.05 to 0.15 percent of wetting agent.

Preferably, the titanium dioxide is 706 rutile type nano titanium dioxide purchased from DuPont of America; the calcium powder is BPR-F13 calcium carbonate powder purchased from Koron powder Co., Ltd, Guangxi Hezhou; the emulsion is a mixture of styrene-acrylic odor-free emulsion, monomer modified water-based pure acrylic odor-free emulsion and organic siloxane modified emulsion, and the mass ratio of the emulsion to the water-based pure acrylic odor-free emulsion is 1:1: 1. the styrene-acrylic odor-free emulsion is 7080 styrene-acrylic emulsion purchased from basf, ag, germany; the monomer modified water-based pure acrylic odor-free emulsion is TX100 pure acrylic emulsion purchased from Dow group of America; the organosilicone-modified emulsion was a CQ8616 emulsion available from badrich ltd.

By adopting the technical scheme, the rutile type nano titanium dioxide has good hydrophilicity and faintly acid, small and uniform particle size, and can be spontaneously dispersed to form a transparent dispersion liquid with uniform nano particle size and stable suspension when added into water. The calcium carbonate powder is used as a body filler, so that the covering effect of the titanium dioxide can be improved, the finish paint is more exquisite and uniform, the paint film strength of the finish paint can be improved, the water resistance and the scrubbing resistance are improved, and the color retention is improved. The styrene-acrylic odor-removing emulsion has strong adhesive force, and is water-resistant, oil-resistant, heat-resistant and alkali-resistant. The monomer modified water-based pure acrylic odor-free emulsion has the advantages of fine particle size, high gloss, excellent weather resistance, aging resistance, color and gloss retention. The organic siloxane modified emulsion has strong water resistance, adhesive force and mechanical property. The three emulsions with different properties are mixed according to the mass ratio of 1:1:1, so that the comprehensive properties of the emulsions are greatly improved, and the preparation method provides guarantee for preparing the finish paint with strong covering power and adhesive force, fine hand feeling, high paint film strength, water resistance, oil resistance, heat resistance, alkali resistance, scrubbing resistance, weather resistance, aging resistance, color retention and gloss retention, and excellent and stable performance.

Preferably, the finishing coat comprises the following components in percentage by weight: 27-28% of water, 35-36% of emulsion, 25-26% of titanium dioxide, 8-9% of calcium powder, 1-2% of film forming agent, 1-2% of antifreezing agent, 1.2-1.4% of dispersing agent, 0.5-0.7% of flatting agent, 0.3-0.4% of defoaming agent, 0.1-0.3% of hydroxyethyl cellulose, 0.1-0.12% of multifunctional auxiliary agent and 0.1-0.12% of wetting agent.

By adopting the technical scheme, the proportion of each substance is further optimized, and the substances exert the optimal performance due to the interaction among the substances, so that the finish paint has better performance.

Preferably, the film forming agent is 2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate, the antifreezing agent is propylene glycol, the leveling agent is an acetylene glycol nonionic surfactant, and the wetting agent is a polyoxyethylene alkylating ether.

By adopting the technical scheme, the 2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate has stronger hydrolytic stability, is an ideal film forming auxiliary agent, has low freezing point, can reduce the lowest film forming temperature of the finish paint under the condition of small amount of use, promotes the film forming of the finish paint, has low volatilization speed and good film forming continuity, can improve the adhesive force, the flatness, the brightness, the washing resistance and the sagging resistance of the finish paint, has proper volatility, is completely volatilized after the film forming of the finish paint, and cannot influence the hardness and the gloss of the finish paint. The propylene glycol is a transparent colorless viscous chemical reagent, can reduce the crystallization point of water, enables the product not to be easily frozen at subzero temperature, has moisturizing and anti-freezing effects, can prevent freezing and fast drying when added into the finish paint, and can help leveling, so that the finish paint can be well adapted to climate change all the year round. The acetylene glycol nonionic surfactant has excellent hydrophilicity, wettability and low foamability, can be fully wetted, can reduce the surface tension (static and dynamic) of the finish paint, and can prevent the surface defects of the finish paint film such as shrinkage cavity, needle eye, fish eye and the like. The polyoxyethylene alkylated ether is a substance which can enable solid materials to be more easily wetted by water, and water can spread on the surfaces of the solid materials or penetrate into the surfaces of the solid materials by reducing the surface tension or the interfacial tension of the materials, so that the solid materials are wetted.

Preferably, the dispersant is a mixture of sodium hexametaphosphate solution with the mass concentration of 20% and a sodium polycarboxylate dispersant, and the mass ratio of the sodium hexametaphosphate solution to the sodium polycarboxylate dispersant is 1: 1.

by adopting the technical scheme, sodium hexametaphosphate can be used as a dispersing agent and also can be used as a surfactant due to the chain length of the sodium hexametaphosphate solution, and the sodium hexametaphosphate solution has two surfactants with opposite properties of hydrophilicity and lipophilicity in a molecule, so that inorganic and organic solid particles which are difficult to dissolve in liquid can be uniformly dispersed, and the solid particles can be prevented from settling and coagulating. The sodium polycarboxylate dispersant has high dispersibility, maximum bearing capacity, excellent dispersibility for titanium dioxide and calcium carbonate powder, small dosage, high efficiency and good storage stability of a dispersion system. The mixture of the sodium hexametaphosphate solution with the mass concentration of 20% and the sodium polycarboxylate dispersant is selected as the dispersant, the advantages of the two dispersants are fully combined, and the prepared finish paint has better performance.

Preferably, the defoaming agent is a mixture of a foam-inhibiting mineral oil defoaming agent and a foam-breaking mineral oil defoaming agent, and the mass ratio of the foam-inhibiting mineral oil defoaming agent to the foam-breaking mineral oil defoaming agent is 1: 1.

By adopting the technical scheme, the mineral oil defoaming agent is an additive for eliminating foam, is easy to disperse in a foaming system, has low surface tension and is beneficial to eliminating the foam in the production process of the finish paint, and the foam inhibiting type mineral oil defoaming agent and the foam breaking type mineral oil defoaming agent are added according to the mass ratio of 1:1, so that the functions of inhibiting and breaking the foam are integrated, and the foaming problem in the production process of the finish paint is effectively solved.

Preferably, the multifunctional auxiliary agent is a multifunctional auxiliary agent mixture containing a nano bamboo charcoal factor and organic-inorganic composite modified diatomite, and the mass ratio of the multifunctional auxiliary agent mixture to the organic-inorganic composite modified diatomite is 1: 1.

by adopting the technical scheme, the bamboo charcoal factor is a natural air purification product which is prepared by taking natural bamboo charcoal as a raw material, adopting high temperature of more than 1000 ℃ and carrying out dry distillation and carbonization in an oxygen-free state, the highly developed pore structure of the bamboo charcoal has a huge surface area, a strong adsorption force field can strongly purify toxic and harmful air molecules, and the bamboo charcoal factor is added into the finish paint, so that the effect of purifying air can be achieved, and the environment-friendly effect is good; secondly, the finishing paint added with the bamboo charcoal also has a humidity adjusting effect and can effectively reduce the phenomena of moisture and overdry; moreover, the bamboo charcoal also has the effect of adsorbing formaldehyde, so that the finish paint is more environment-friendly, and the environment of window condensation and indoor mildew proliferation can be effectively inhibited. The organic-inorganic composite modified diatomite can enhance the adsorption of a finish paint film on formaldehyde molecules, purify air, enhance the strength of the paint film, has an anti-corrosion effect and further improves the value of the finish paint. The multifunctional auxiliary agent is also called pH regulator, and has the main function of regulating and controlling the pH value of the emulsion and the finish paint.

Preferably, the finish paint also comprises plant extracts and color pastes in different weight percentages, wherein the addition amount of the plant extracts is 0-1%, and the addition amount of the color pastes is 0-18%. .

By adopting the technical scheme, the natural smell and color of the interior wall finish are enriched by adding the plant extract and the color paste, the olfactory sensation and visual experience of people are enriched, and the beauty life is promoted. When the finish paint is prepared, a plurality of different plant extracts can be added according to different requirements, and the same plant extract can have different addition amounts, so that the finish paint with different fragrance intensities can be obtained; when the finish paint is prepared, color pastes with different colors can be added according to requirements, and the color pastes with the same color can have different addition amounts, so that the finish paint with different colors can be obtained. The plant extract and the color paste can be added simultaneously or only one of the plant extract and the color paste can be added.

The second purpose of the invention is to provide a preparation method of a thin-coating type interior wall finish, which comprises the following steps:

(1) adding 4/5 water, 1/3 defoaming agent, dispersant, wetting agent and multifunctional auxiliary agent into the raw materials according to the proportion, mixing in a dispersion cylinder, and stirring and dispersing at the dispersion temperature of 20-40 ℃ and the rotation speed of 300-500 rpm for 10-15 minutes to obtain a uniformly dispersed mixture A;

(2) sequentially adding titanium dioxide and calcium powder into the mixture A obtained in the step (1), stirring and dispersing at the dispersion temperature of 40-60 ℃ at 800-1200 rpm, and grinding for 30-40 minutes to obtain a uniformly dispersed mixture B;

(3) sequentially adding an antifreezing agent, a film forming agent, an 1/3 antifoaming agent, a leveling agent and hydroxyethyl cellulose into the mixture B obtained in the step (2), and stirring and dispersing at the dispersion temperature of 40-60 ℃ and the rotation speed of 800-1200 rpm for 10-15 minutes to obtain a uniformly dispersed mixture C;

(4) and (4) adding the emulsion, 1/3 defoamer and 1/5 water into the mixture C obtained in the step (3) in sequence, stirring and dispersing at the dispersion temperature of 60-70 ℃ and at the speed of 80-120 rpm, and obtaining the thin-coating type interior wall finish when the viscosity of the system reaches 100-110 KU.

By adopting the technical scheme, 1/3 defoamer, dispersant, wetting agent and multifunctional auxiliary agent are added into 4/5 water to be stirred and dispersed, which is beneficial to establishing a system environment in which the titanium dioxide and calcium powder to be added in the step (2) are stably and uniformly dispersed, the titanium dioxide and calcium powder are added to be stirred and dispersed, then the antifreeze agent, the film forming agent, the 1/3 defoamer, the leveling agent and the hydroxyethyl cellulose are sequentially added, which is beneficial to establishing a sequential and gradual uniform film forming process of the finish paint, and various excellent performances are integrated into a whole, and finally, the emulsion, the 1/3 defoamer and the 1/5 water are sequentially added to further stabilize and enrich various characteristics of the finish paint.

Preferably, the dispersing temperature in the step (1) is controlled to be 20-40 ℃, the stirring is carried out at the rotating speed of 300-500 rpm, and the dispersing time is controlled to be 10-15 minutes; the dispersing temperature in the step (2) is controlled to be 40-60 ℃, stirring is carried out at the rotating speed of 800-1200 rpm, and dispersing and grinding are carried out for 30-40 minutes; the dispersing temperature in the step (3) is controlled to be 40-60 ℃, stirring is carried out at the rotating speed of 800-1200 rpm, and the dispersing time is controlled to be 10-15 minutes; and (4) controlling the dispersion temperature in the step (4) to be 60-70 ℃, and stirring at the rotating speed of 80-120 rpm.

By adopting the technical scheme, the optimal preparation process is optimized by controlling the dispersion temperature, the stirring speed and the dispersion time in the preparation process of the interior wall finish, and the interior wall finish with excellent characteristics can be prepared.

Preferably, the plant extract and/or the color paste are added in the step (4) for mixing and dispersing.

In summary, the present application has the following beneficial effects:

1. according to the method, the emulsion, the titanium dioxide, the calcium powder, the film forming agent, the antifreezing agent, the dispersing agent, the leveling agent, the defoaming agent, the hydroxyethyl cellulose, the multifunctional assistant, the wetting agent and other specific raw materials are reasonably selected, and the proportioning optimization design among the raw materials is adopted, so that the interior wall finish with obvious advantages can be prepared, when the interior wall of a building is decorated, the finish can be painted on the surface of the primer for one time, the decoration effect which can be achieved by painting the traditional finish for 2-3 times can be replaced, the decoration cost is effectively saved, and the decoration period is shortened.

2. Plant extracts and/or color paste can be added into the interior wall paint, so that the natural smell and color of the interior wall paint are enriched, the olfactory sensation and visual experience of people are enriched, and the beauty life is oriented.

3. The interior wall finish disclosed by the application has the advantages of easiness in obtaining raw materials, simple preparation process and easiness in operation.

Detailed Description

The present application will be described in further detail with reference to examples.

Sources of feedstock in the following embodiments:

titanium dioxide: 706 rutile type nanometer titanium dioxide of DuPont of America;

calcium powder: BPR-F13 calcium carbonate powder from Kelong powder, Inc., of Guangxi congratulatory State;

styrene-acrylic odor-removing emulsion: 7080 styrene-acrylic emulsion from basf ag germany;

monomer modified aqueous pure acrylic odor-free emulsion: TX100 pure acrylic emulsion from dow group, usa;

organosiloxane modified emulsion: CQ8616 emulsion from badrich ltd;

2,2, 4-trimethyl-1, 3-pentanediol monoisobutyrate: alfa aesar (china) chemical ltd;

propylene glycol: 1, 2-propanediol, Guangdong Yilong industries, Inc.;

acetylenic diol nonionic surfactant: surfynol 440 from Sichuan Ruikapon chemical materials, Inc.;

polyoxyethylene alkylated ethers: break-Thai chemical Limited of Nantong city;

sodium hexametaphosphate solution: shandongfeng Tai chemical science and technology Co., Ltd;

sodium polycarboxylate dispersant: tao usa group 5040;

foam inhibition type mineral oil defoamer: norp technologies, Inc. 3410;

foam breaking type mineral oil defoaming agent: NXZ, Norpu technologies, Inc.;

hydroxyethyl cellulose: shandong Qingwangda chemical technology Co., Ltd;

nano bamboo charcoal factor: tuichang county Shenlonggu Tan Cao Co Ltd;

organic-inorganic composite modified diatomite: lingshou county Longjin mineral processing factory;

multifunctional auxiliary agent: break-Thai chemical Limited of Nantong city;

plant extracts: hunan Lanolin biological resources GmbH;

color paste: american color pigment, Inc.;

examples

Example 1

The thin-coating type interior wall finish of the present application was prepared by the following preparation method:

(1) mixing styrene-acrylic odor-free emulsion, monomer modified water-based pure acrylic odor-free emulsion and organic siloxane modified emulsion according to the mass ratio of 1:1:1, mixing to obtain emulsion for later use;

(2) mixing a sodium hexametaphosphate solution with the mass concentration of 20% and a sodium polycarboxylate dispersant according to the mass ratio of 1:1, mixing to obtain a dispersing agent for later use;

(3) mixing a foam-inhibiting mineral oil defoaming agent and a foam-breaking mineral oil defoaming agent according to the mass ratio of 1:1 to obtain a defoaming agent for later use;

(4) the preparation method comprises the following steps of (1) mixing a nano bamboo charcoal factor, organic-inorganic composite modified diatomite and a multifunctional auxiliary agent in a mass ratio of 1:1, mixing to obtain a standby multifunctional auxiliary agent;

(5) taking preparation of 1KG finish as an example, the addition amount of each raw material is calculated as follows: 27 percent of water (270g), 35 percent of emulsion (350g), 25 percent of titanium dioxide (250g), 8 percent of calcium powder (80g), 1.2 percent of film forming agent (12g), 1.2 percent of antifreeze agent (12g), 1.25 percent of dispersant (12.5g), 0.65 percent of flatting agent (6.5g), 0.3 percent of defoaming agent (3g), 0.2 percent of hydroxyethyl cellulose (2g), 0.1 percent of multifunctional auxiliary agent (1g) and 0.1 percent of wetting agent (1 g).

(6) Adding 1g of defoaming agent, 12.5g of dispersing agent, 1g of wetting agent and 1g of multifunctional auxiliary agent into 216g of water, mixing in a dispersion cylinder, and stirring and dispersing at the dispersion temperature of 30 ℃ and the speed of 400rpm for 12 minutes to obtain a uniformly dispersed mixture A;

(7) adding 250g of titanium dioxide and 80g of calcium powder into the mixture A obtained in the step (6) in sequence, stirring and dispersing at the dispersion temperature of 50 ℃ and at the speed of 1000rpm, and grinding for 35 minutes to obtain a uniformly dispersed mixture B;

(8) adding 12g of an antifreezing agent, 12g of a film forming agent, 1g of a defoaming agent, 6.5g of a leveling agent and 2g of hydroxyethyl cellulose into the mixture B obtained in the step (7) in sequence, and stirring and dispersing at the dispersion temperature of 50 ℃ and the rotation speed of 1000rpm for 12 minutes to obtain a uniformly dispersed mixture C;

(9) and (3) sequentially adding 350g of emulsion, 1g of defoaming agent and 54g of water into the mixture C obtained in the step (8), stirring and dispersing at the dispersion temperature of 65 ℃ and at 100rpm, and obtaining the 1KG thin-coating type interior wall finish when the viscosity of the system reaches 100-110 KU.

Thus, the thin coating type interior wall finish according to the present application was obtained.

Example 2

The thin-coating type interior wall finish of the present application was prepared by the following preparation method:

(1) mixing styrene-acrylic odor-free emulsion, monomer modified water-based pure acrylic odor-free emulsion and organic siloxane modified emulsion according to the mass ratio of 1:1:1, mixing to obtain emulsion for later use;

(2) mixing a sodium hexametaphosphate solution with the mass concentration of 20% and a sodium polycarboxylate dispersant according to the mass ratio of 1:1, mixing to obtain a dispersing agent for later use;

(3) mixing a foam-inhibiting mineral oil defoaming agent and a foam-breaking mineral oil defoaming agent according to the mass ratio of 1:1 to obtain a defoaming agent for later use;

(4) the preparation method comprises the following steps of (1) mixing a nano bamboo charcoal factor, organic-inorganic composite modified diatomite and a multifunctional auxiliary agent in a mass ratio of 1:1, mixing to obtain a standby multifunctional auxiliary agent;

(5) taking preparation of 1KG finish as an example, the addition amount of each raw material is calculated as follows: 25 percent of water (250g), 34 percent of emulsion (340g), 26 percent of titanium pigment (260g), 9 percent of calcium powder (90g), 1.4 percent of film forming agent (14g), 1.5 percent of antifreeze agent (15g), 1.35 percent of dispersant (13.5g), 0.8 percent of flatting agent (8g), 0.4 percent of defoaming agent (4g), 0.3 percent of hydroxyethyl cellulose (3g), 0.13 percent of multifunctional auxiliary agent (1.3g) and 0.12 percent of wetting agent (1.2 g).

(6) Adding 1.33g of defoaming agent, 13.5g of dispersing agent, 1.2g of wetting agent and 1.3g of multifunctional auxiliary agent into 200g of water, mixing in a dispersion cylinder, and stirring and dispersing at the dispersion temperature of 30 ℃ and the dispersion speed of 400rpm for 12 minutes to obtain a uniformly dispersed mixture A;

(7) adding 260g of titanium dioxide and 90g of calcium powder into the mixture A obtained in the step (6) in sequence, stirring and dispersing at the dispersion temperature of 50 ℃ and at the speed of 1000rpm, and grinding for 35 minutes to obtain a uniformly dispersed mixture B;

(8) adding 15g of an antifreezing agent, 14g of a film forming agent, 1.33g of a defoaming agent, 8g of a leveling agent and 3g of hydroxyethyl cellulose into the mixture B obtained in the step (7) in sequence, and stirring and dispersing at the dispersion temperature of 50 ℃ and the rotation speed of 1000rpm for 12 minutes to obtain a uniformly dispersed mixture C;

(9) and (3) sequentially adding 340g of emulsion, 1.33g of defoaming agent and 50g of water into the mixture C obtained in the step (8), stirring and dispersing at the dispersion temperature of 65 ℃ and at 100rpm, and obtaining the 1KG thin-coating type interior wall finish when the viscosity of the system reaches 100-110 KU.

Thus, the thin coating type interior wall finish according to the present application was obtained.

Example 3

A thin-coating type interior wall finish is different from the embodiment 1 in that 1108g of colored thin-coating type interior wall finish with natural fragrance is obtained by adding 8g of plant extract and 100g of color paste in the step (9) and mixing and dispersing.

Example 4

A thin-coating type interior wall finish is different from the embodiment 2 in that 10g of plant extract and 120g of color paste are added in the step (9) for mixing and dispersing to obtain 1130g of colored thin-coating type interior wall finish with natural fragrance.

Example 5

The thin-coating type interior wall finish of the present application was prepared by the following preparation method:

(1) mixing styrene-acrylic odor-free emulsion, monomer modified water-based pure acrylic odor-free emulsion and organic siloxane modified emulsion according to the mass ratio of 1:1:1, mixing to obtain emulsion for later use;

(2) mixing a sodium hexametaphosphate solution with the mass concentration of 20% and a sodium polycarboxylate dispersant according to the mass ratio of 1:1, mixing to obtain a dispersing agent for later use;

(3) mixing a foam-inhibiting mineral oil defoaming agent and a foam-breaking mineral oil defoaming agent according to the mass ratio of 1:1 to obtain a defoaming agent for later use;

(4) the preparation method comprises the following steps of (1) mixing a nano bamboo charcoal factor, organic-inorganic composite modified diatomite and a multifunctional auxiliary agent in a mass ratio of 1:1, mixing to obtain a standby multifunctional auxiliary agent;

(5) taking preparation of 1KG finish as an example, the addition amount of each raw material is calculated as follows: 29 percent (290g) of water, 31.1 percent (311g) of emulsion, 23 percent (230g) of titanium dioxide, 7 percent (70g) of calcium powder, 1.8 percent (18g) of film forming agent, 1.8 percent (18g) of antifreeze agent, 1.4 percent (14g) of dispersant, 0.7 percent (7g) of flatting agent, 0.2 percent (2g) of defoaming agent, 0.1 percent (1g) of hydroxyethyl cellulose, 0.05 percent (0.5g) of multifunctional additive, 0.05 percent (0.5g) of wetting agent, 0.5 percent (5g) of plant extract and 3.3 percent (33g) of color paste.

(6) Adding 0.67g of defoaming agent, 14g of dispersing agent, 0.5g of wetting agent and 0.5g of multifunctional auxiliary agent into 232g of water, mixing in a dispersing cylinder, and stirring and dispersing for 15 minutes at the dispersing temperature of 40 ℃ and at 500rpm to obtain a uniformly dispersed mixture A;

(7) adding 230g of titanium dioxide and 70g of calcium powder into the mixture A obtained in the step (6) in sequence, stirring and dispersing at the dispersion temperature of 60 ℃ and the rotation speed of 1200rpm, and grinding for 40 minutes to obtain a uniformly dispersed mixture B;

(8) adding 18g of an antifreezing agent, 18g of a film forming agent, 0.67g of a defoaming agent, 7g of a leveling agent and 1g of hydroxyethyl cellulose into the mixture B obtained in the step (7) in sequence, and stirring and dispersing at the dispersion temperature of 50 ℃ and the rotation speed of 1000rpm for 15 minutes to obtain a uniformly dispersed mixture C;

(9) adding 311g of emulsion, 0.67g of defoaming agent and 58g of water into the mixture C obtained in the step (8) in sequence, and stirring and dispersing for 15 minutes at the dispersion temperature of 60 ℃ and at the speed of 100rpm to obtain a uniformly dispersed mixture D;

(10) and (4) adding 5g of plant extract and 33g of color paste into the mixture D obtained in the step (9), mixing and dispersing, and obtaining 1KG of colored thin-coating type interior wall finish with natural fragrance when the system viscosity reaches 100-110 KU.

Thus, the thin coating type interior wall finish according to the present application was obtained. Wherein the plant extract can be any natural plant extract with fragrance or specific function, such as vanilla extract, lavender extract, tea essence extract, basil extract, etc. The color paste can be water-based color paste of any color.

Example 6

The thin-coating type interior wall finish of the present application was prepared by the following preparation method:

(1) mixing styrene-acrylic odor-free emulsion, monomer modified water-based pure acrylic odor-free emulsion and organic siloxane modified emulsion according to the mass ratio of 1:1:1, mixing to obtain emulsion for later use;

(2) mixing a sodium hexametaphosphate solution with the mass concentration of 20% and a sodium polycarboxylate dispersant according to the mass ratio of 1:1, mixing to obtain a dispersing agent for later use;

(3) mixing a foam-inhibiting mineral oil defoaming agent and a foam-breaking mineral oil defoaming agent according to the mass ratio of 1:1 to obtain a defoaming agent for later use;

(4) the preparation method comprises the following steps of (1) mixing a nano bamboo charcoal factor, organic-inorganic composite modified diatomite and a multifunctional auxiliary agent in a mass ratio of 1:1, mixing to obtain a standby multifunctional auxiliary agent;

(5) taking preparation of 1KG finish as an example, the addition amount of each raw material is calculated as follows: 30 percent of water (300g), 32 percent of emulsion (320g), 24 percent of titanium pigment (240g), 6 percent of calcium powder (60g), 1.6 percent of film forming agent (16g), 1 percent of antifreeze agent (10g), 1 percent of dispersant (10g), 0.3 percent of flatting agent (3g), 0.12 percent of defoaming agent (1.2g), 0.2 percent of hydroxyethyl cellulose (2g), 0.15 percent of multifunctional auxiliary agent (1.5g), 0.15 percent of wetting agent (1.5g), 1 percent of plant extract (10g) and 2.48 percent of color paste (24.8 g).

(6) Adding 0.4g of defoaming agent, 10g of dispersing agent, 1.5g of wetting agent and 1.5g of multifunctional auxiliary agent into 240g of water, mixing in a dispersing cylinder, and stirring and dispersing at the dispersing temperature of 25 ℃ and the speed of 400rpm for 10 minutes to obtain a uniformly dispersed mixture A;

(7) adding 240g of titanium dioxide and 60g of calcium powder into the mixture A obtained in the step (6) in sequence, stirring and dispersing at the dispersion temperature of 45 ℃ and at 800rpm, and grinding for 30 minutes to obtain a uniformly dispersed mixture B;

(8) adding 10g of an antifreezing agent, 16g of a film forming agent, 0.4g of a defoaming agent, 3g of a leveling agent and 2g of hydroxyethyl cellulose into the mixture B obtained in the step (7) in sequence, and stirring and dispersing at the dispersion temperature of 45 ℃ and the rotation speed of 1000rpm for 10 minutes to obtain a uniformly dispersed mixture C;

(9) adding 320g of emulsion, 0.4g of defoaming agent and 60g of water into the mixture C obtained in the step (8) in sequence, and stirring and dispersing for 10 minutes at the dispersion temperature of 65 ℃ and the rotation speed of 90rpm to obtain a uniformly dispersed mixture D;

(10) and (4) adding 10g of plant extract and 24.8g of color paste into the mixture D obtained in the step (9), mixing and dispersing, and obtaining 1KG of colored thin-coating type interior wall finish with natural fragrance when the system viscosity reaches 100-110 KU.

Thus, the thin coating type interior wall finish according to the present application was obtained. Wherein the plant extract can be any natural plant extract with fragrance or specific function, such as vanilla extract, lavender extract, tea essence extract, basil extract, etc. The color paste can be water-based color paste of any color.

Example 7

The thin-coating type interior wall finish of the present application was prepared by the following preparation method:

(1) mixing styrene-acrylic odor-free emulsion, monomer modified water-based pure acrylic odor-free emulsion and organic siloxane modified emulsion according to the mass ratio of 1:1:1, mixing to obtain emulsion for later use;

(2) mixing a sodium hexametaphosphate solution with the mass concentration of 20% and a sodium polycarboxylate dispersant according to the mass ratio of 1:1, mixing to obtain a dispersing agent for later use;

(3) mixing a foam-inhibiting mineral oil defoaming agent and a foam-breaking mineral oil defoaming agent according to the mass ratio of 1:1 to obtain a defoaming agent for later use;

(4) the preparation method comprises the following steps of (1) mixing a nano bamboo charcoal factor, organic-inorganic composite modified diatomite and a multifunctional auxiliary agent in a mass ratio of 1:1, mixing to obtain a standby multifunctional auxiliary agent;

(5) taking preparation of 1KG finish as an example, the addition amount of each raw material is calculated as follows: 25 percent (250g) of water, 37.8 percent (378g) of emulsion, 23 percent (230g) of titanium dioxide, 6 percent (60g) of calcium powder, 2 percent (20g) of film forming agent, 2 percent (20g) of antifreeze, 1.5 percent (15g) of dispersant, 1 percent (10g) of flatting agent, 0.5 percent (5g) of defoaming agent, 0.1 percent (1g) of hydroxyethyl cellulose, 0.05 percent (0.5g) of multifunctional additive, 0.05 percent (0.5g) of wetting agent and 1 percent (10g) of color paste.

(6) Adding 1.67g of defoaming agent, 15g of dispersing agent, 0.5g of wetting agent and 0.5g of multifunctional auxiliary agent into 200g of water, mixing in a dispersing cylinder, and stirring and dispersing at the dispersing temperature of 25 ℃ and the speed of 400rpm for 10 minutes to obtain a uniformly dispersed mixture A;

(7) adding 230g of titanium dioxide and 60g of calcium powder into the mixture A obtained in the step (6) in sequence, stirring and dispersing at the dispersion temperature of 45 ℃ and at 800rpm, and grinding for 30 minutes to obtain a uniformly dispersed mixture B;

(8) adding 20g of an antifreezing agent, 20g of a film forming agent, 1.67g of a defoaming agent, 10g of a leveling agent and 1g of hydroxyethyl cellulose into the mixture B obtained in the step (7) in sequence, and stirring and dispersing at the dispersion temperature of 45 ℃ and the rotation speed of 1000rpm for 10 minutes to obtain a uniformly dispersed mixture C;

(9) sequentially adding 378g of emulsion, 1.67g of defoaming agent and 50g of water into the mixture C obtained in the step (8), and stirring and dispersing at the dispersion temperature of 65 ℃ and the rotation speed of 90rpm for 10 minutes to obtain a uniformly dispersed mixture D;

(10) and (4) adding 10g of color paste into the mixture D obtained in the step (9), mixing and dispersing, and obtaining 1KG colored thin-coating type interior wall finish when the system viscosity reaches 100-110 KU.

Thus, the thin coating type interior wall finish according to the present application was obtained. Wherein, the color paste can be water-based color paste with any color.

Example 8

The thin-coating type interior wall finish of the present application was prepared by the following preparation method:

(1) mixing styrene-acrylic odor-free emulsion, monomer modified water-based pure acrylic odor-free emulsion and organic siloxane modified emulsion according to the mass ratio of 1:1:1, mixing to obtain emulsion for later use;

(2) mixing a sodium hexametaphosphate solution with the mass concentration of 20% and a sodium polycarboxylate dispersant according to the mass ratio of 1:1, mixing to obtain a dispersing agent for later use;

(3) mixing a foam-inhibiting mineral oil defoaming agent and a foam-breaking mineral oil defoaming agent according to the mass ratio of 1:1 to obtain a defoaming agent for later use;

(4) the preparation method comprises the following steps of (1) mixing a nano bamboo charcoal factor, organic-inorganic composite modified diatomite and a multifunctional auxiliary agent in a mass ratio of 1:1, mixing to obtain a standby multifunctional auxiliary agent;

(5) taking preparation of 1KG finish as an example, the addition amount of each raw material is calculated as follows: 25 percent (250g) of water, 40 percent (400g) of emulsion, 25.3 percent (253g) of titanium pigment, 6 percent (60g) of calcium powder, 1 percent (10g) of film forming agent, 1 percent (10g) of antifreeze agent, 1 percent (10g) of dispersing agent, 0.3 percent (3g) of flatting agent, 0.1 percent (1g) of defoaming agent, 0.1 percent (1g) of hydroxyethyl cellulose, 0.05 percent (0.5g) of multifunctional auxiliary agent, 0.05 percent (0.5g) of wetting agent and 0.1 percent (1g) of plant extract.

(6) Adding 0.33g of defoaming agent, 10g of dispersing agent, 0.5g of wetting agent and 0.5g of multifunctional auxiliary agent into 200g of water, mixing in a dispersing cylinder, and stirring and dispersing at the dispersing temperature of 25 ℃ and the speed of 400rpm for 10 minutes to obtain a uniformly dispersed mixture A;

(7) adding 253g of titanium dioxide and 60g of calcium powder into the mixture A obtained in the step (6) in sequence, stirring and dispersing at the dispersion temperature of 45 ℃ and at 800rpm, and grinding for 30 minutes to obtain a uniformly dispersed mixture B;

(8) adding 10g of an antifreezing agent, 10g of a film forming agent, 0.33g of a defoaming agent, 3g of a leveling agent and 1g of hydroxyethyl cellulose into the mixture B obtained in the step (7) in sequence, and stirring and dispersing at the dispersion temperature of 45 ℃ and the rotation speed of 1000rpm for 10 minutes to obtain a uniformly dispersed mixture C;

(9) adding 400g of emulsion, 0.33g of defoaming agent and 50g of water into the mixture C obtained in the step (8) in sequence, and stirring and dispersing for 10 minutes at the dispersion temperature of 65 ℃ and the rotation speed of 90rpm to obtain a uniformly dispersed mixture D;

(10) and (4) adding 1g of plant extract into the mixture D obtained in the step (9), mixing and dispersing, and obtaining 1KG of thin-coating type interior wall finish with natural fragrance when the system viscosity reaches 100-110 KU.

Thus, the thin coating type interior wall finish according to the present application was obtained. Wherein the plant extract can be any natural plant extract with fragrance or specific function, such as vanilla extract, lavender extract, tea essence extract, basil extract, etc.

Comparative example

Comparative example 1

The thin-coating type interior wall finish of the present application was prepared by the following preparation method:

(1) mixing styrene-acrylic odor-free emulsion, monomer modified water-based pure acrylic odor-free emulsion and organic siloxane modified emulsion according to the mass ratio of 1:1:1, mixing to obtain emulsion for later use;

(2) mixing a sodium hexametaphosphate solution with the mass concentration of 20% and a sodium polycarboxylate dispersant according to the mass ratio of 1:1, mixing to obtain a dispersing agent for later use;

(3) mixing a foam-inhibiting mineral oil defoaming agent and a foam-breaking mineral oil defoaming agent according to the mass ratio of 1:1 to obtain a defoaming agent for later use;

(4) the preparation method comprises the following steps of (1) mixing a nano bamboo charcoal factor, organic-inorganic composite modified diatomite and a multifunctional auxiliary agent in a mass ratio of 1:1, mixing to obtain a standby multifunctional auxiliary agent;

(5) taking preparation of 1KG finish as an example, the addition amount of each raw material is calculated as follows: 20 percent (200g) of water, 50 percent (500g) of emulsion, 20 percent (200g) of titanium dioxide, 5 percent (50g) of calcium powder, 0.5 percent (5g) of film-forming agent, 0.5 percent (5g) of antifreeze agent, 0.5 percent (5g) of dispersant agent, 0.1 percent (1g) of flatting agent, 0.9 percent (9g) of defoaming agent, 0.5 percent (5g) of hydroxyethyl cellulose, 0.3 percent (3g) of multifunctional auxiliary agent and 1.7 percent (17g) of wetting agent.

(6) Adding 3g of defoaming agent, 5g of dispersing agent, 17g of wetting agent and 3g of multifunctional auxiliary agent into 160g of water, mixing in a dispersing cylinder, and stirring and dispersing at the dispersing temperature of 30 ℃ and the speed of 400rpm for 12 minutes to obtain a uniformly dispersed mixture A;

(7) adding 200g of titanium dioxide and 50g of calcium powder into the mixture A obtained in the step (6) in sequence, stirring and dispersing at the dispersion temperature of 50 ℃ and at the speed of 1000rpm, and grinding for 35 minutes to obtain a uniformly dispersed mixture B;

(8) adding 5g of an antifreezing agent, 5g of a film forming agent, 3g of a defoaming agent, 1g of a leveling agent and 5g of hydroxyethyl cellulose into the mixture B obtained in the step (7) in sequence, and stirring and dispersing at the dispersion temperature of 50 ℃ and the rotation speed of 1000rpm for 12 minutes to obtain a uniformly dispersed mixture C;

(9) and (3) sequentially adding 500g of emulsion, 3g of defoaming agent and 40g of water into the mixture C obtained in the step (8), stirring and dispersing at the dispersion temperature of 65 ℃ and at 100rpm, and obtaining the 1KG thin-coating type interior wall finish when the viscosity of the system reaches 100-110 KU.

Comparative example 2

The thin-coating type interior wall finish of the present application was prepared by the following preparation method:

(1) mixing styrene-acrylic odor-free emulsion, monomer modified water-based pure acrylic odor-free emulsion and organic siloxane modified emulsion according to the mass ratio of 1:1:1, mixing to obtain emulsion for later use;

(2) mixing a sodium hexametaphosphate solution with the mass concentration of 20% and a sodium polycarboxylate dispersant according to the mass ratio of 1:1, mixing to obtain a dispersing agent for later use;

(3) mixing a foam-inhibiting mineral oil defoaming agent and a foam-breaking mineral oil defoaming agent according to the mass ratio of 1:1 to obtain a defoaming agent for later use;

(4) the preparation method comprises the following steps of (1) mixing a nano bamboo charcoal factor, organic-inorganic composite modified diatomite and a multifunctional auxiliary agent in a mass ratio of 1:1, mixing to obtain a standby multifunctional auxiliary agent;

(5) taking preparation of 1KG finish as an example, the addition amount of each raw material is calculated as follows: 40 percent of water (400g), 18 percent of emulsion (180g), 28 percent of titanium pigment (280g), 12 percent of calcium powder (120g), 0.5 percent of film forming agent (5g), 0.5 percent of antifreeze agent (5g), 0.5 percent of dispersant (5g) and 0.5 percent of hydroxyethyl cellulose (5 g).

(6) Adding 5g of dispersing agent into 320g of water, mixing in a dispersion cylinder, and stirring and dispersing for 12 minutes at the dispersion temperature of 30 ℃ and the speed of 400rpm to obtain a uniformly dispersed mixture A;

(7) adding 280g of titanium dioxide and 120g of calcium powder into the mixture A obtained in the step (6) in sequence, stirring and dispersing at the dispersion temperature of 50 ℃ and at the speed of 1000rpm, and grinding for 35 minutes to obtain a uniformly dispersed mixture B;

(8) adding 5g of an antifreezing agent, 5g of a film forming agent and 5g of hydroxyethyl cellulose into the mixture B obtained in the step (7) in sequence, and stirring and dispersing at the dispersion temperature of 50 ℃ and the rotation speed of 1000rpm for 12 minutes to obtain a uniformly dispersed mixture C;

(9) and (3) sequentially adding 180g of emulsion and 80g of water into the mixture C obtained in the step (8), stirring and dispersing at the dispersion temperature of 65 ℃ and at 100rpm, and obtaining the 1KG thin-coating type interior wall finish when the viscosity of the system reaches 100-110 KU.

Comparative example 3

A thin-coating type interior wall finish is different from the embodiment 1 in that anatase titanium dioxide is added in the step (7).

Comparative example 4

A thin-coating type interior wall finish is different from example 1 in that only a styrene-acrylic odor-removing emulsion is added in step (9).

Comparative example 5

A thin-coating type interior wall finish is different from that of example 1 in that only the monomer-modified aqueous pure acrylic odorless emulsion is added in step (9).

Thin coating type inner wall paint raw paint performance detection [ Table 1]

Thin coating type interior wall paint workability test [ Table 2]

Thin coating type interior wall paint coating performance test [ Table 3]

The test sample plate uses a substrate conforming to the GB/T9271-2008 specification and is a non-asbestos fiber cement board.

Workability test 1: workability

The finish paint samples of examples 1-8 and comparative examples 1-5 were applied to a 500mm x 200mm asbestos-free fiber cement board by the method of GB/T6753.6-1986, and the ease of application and the ability of the paint film to flow quickly without sagging, wrinkling, curling, bleeding, undercutting, yellowing, etc. were recorded. If the above phenomenon does not occur, "no obstacle" is recorded.

Workability test 2: drying time

The surface drying time (surface drying time) of the test panel topcoats applied in examples 1 to 8 and comparative examples 1 to 5 is recorded with reference to the standard of GB/T1728-1979 (1989), preferably 2h or less.

Workability test 3: thickness of coating film

The dry film thickness of the thin-coating type interior wall finish is tested by a mechanical method, and the thickness is preferably more than or equal to 50 mu m.

Workability test 4: hiding power (contrast ratio)

The higher the value, the stronger the hiding power of the product, as determined by reference to the method of GB/T1726-1979 (1989).

Film coating performance test 1: appearance of coating film

Under normal temperature, the front, back and edge of the test panel were coated with primers according to standard procedures, and after drying, the thin-coat interior wall finishes obtained in examples 1-8 and comparative examples 1-5 were coated on 10 test panels, respectively, and the back and edge of the test panels were also coated with the products to be tested.

Meanwhile, 3 kinds of common top coats on the market were selected and coated on 10 same test boards covered with the primer according to the same operation, and after the top coats of the first time were dried, the second time was coated as comparative examples 6 to 8.

After the above operations were completed and the coating films were dried, the test panel topcoats applied in examples 1 to 8 and comparative examples 1 to 8 were subjected to appearance tests, and the coating films were inspected for defects such as brush marks, particles, blisters, wrinkles, craters, etc. by visual observation under natural light, and if none of them, recorded as "defect-free".

Film coating performance test 2: adhesion force

The adhesion between the coating films of examples 1 to 8 and comparative examples 1 to 8 and the primers was measured by a special adhesion tester according to the GB/T1720-.

Film coating performance test 3: washing and brushing resistance

With reference to the method for measuring the scrub resistance of the coating in GB/T9266-2009 standard, the finish paint samples of examples 1-8 and comparative examples 1-5 are uniformly coated on an asbestos-free fiber cement board by a 120mm wire bar under a normal temperature condition.

Meanwhile, 3 samples of the common top coat on the market are uniformly coated on a non-asbestos fiber cement board by a 120mm wire rod in the first pass, and are coated on the second pass by an 80mm wire rod after 6 hours.

The samples were prepared in 2 portions, maintained for 7 days, and then subjected to parallel tests for further use.

Dissolving washing powder in distilled water to obtain 0.5 wt% washing powder solution as washing medium with pH of 9.5-11.0.

A12 mm part of a black bristle brush with the length of 19mm is immersed in water at the normal temperature for 30 minutes, the part is taken out and then brushed with clean water, and the brush is immersed in a brushing medium for 20 minutes for later use.

Fixing the test sample on a test table plate of a scrub resistant instrument horizontally, enabling the painting surface to face upwards, placing the pretreated brush on the painting surface of the test plate, enabling the brush to keep natural sagging, dripping about 2ml of scrubbing medium on the test area of the test plate, immediately starting a machine to brush in a reciprocating mode, and dripping about 0.04ml of scrubbing medium at the speed of dripping per second, namely the speed of disconnection and disconnection, so that the scrubbing surface is kept wet. And taking down the test sample plate after washing for 1000 times, washing with tap water, and recording whether the substrate leaks out of the middle area of the test plate or not, wherein the substrate which does not leak out is regarded as qualified.

Film coating performance test 4: alkali resistance

According to the method for determining alkali resistance of the coating in GB/T9265-2009 standard, 0.12g of calcium hydroxide is added into 100mL of distilled water under the normal temperature condition, the mixture is fully stirred to prepare an alkali solution with the pH value of 12-13, the peripheral edges and the north surface of test plates coated in examples 1-8 and comparative examples 1-8 for appearance test are sealed by a paraffin and rosin mixture (the mass ratio is 1: 1), and then 2/3 of the area of the test plates is immersed into a calcium hydroxide saturated solution for 48 hours. After soaking, the test plate is taken out and washed clean with water, water drops are sucked dry by filter paper, and whether the surface of the coating film has the phenomena of bubbling, cracking, peeling, pulverization, softening, dissolution and the like is observed. If the above phenomena do not appear in the test panel, the finish paint is judged to be "no abnormal".

As can be seen from Table 1, the original paint properties of the thin-coating type interior wall finishes prepared in examples 1 to 8 and comparative examples 1 to 5 all meet the product test standards.

As can be seen from Table 2, the thin coating type interior wall finishes prepared by comparative examples 1 to 8 and comparative examples 1 to 5 have better workability in workability, open time, coating film thickness, hiding power, in examples 1 to 8 and comparative examples 1 to 2.

As can be seen from Table 3, by comparing the film properties of the test sheets obtained in examples 1 to 8 and comparative examples 1 to 8, examples 1 to 8 and comparative examples 6 to 8 each had a better film property in terms of film appearance, adhesion, scrub resistance, alkali resistance, etc.

In conclusion, the thin-coating type interior wall finish prepared in embodiments 1 to 8 of the present application has the effect of brushing the primer once, which can replace the effect of brushing the common finish sold on the market twice (the common finish sold on the market needs to be brushed at least 2 to 3 times on the dried primer, and the middle needs to wait for drying at intervals of 2 hours).

In contrast, the formulations of comparative examples 1-5, which were outside the range of the present application, resulted in a decrease in overall performance of the topcoats prepared, indicating that compositions not in any formulation were able to achieve the performance of the topcoats of the present application.

The embodiments of the present application are only for explanation and not for limitation of the present application, and those skilled in the art can make modifications to the embodiments without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present application.