WO2024050921A1

WO2024050921A1 - Antiviral dry powder art paint, and preparation method therefor and use thereof

Info

Publication number: WO2024050921A1
Application number: PCT/CN2022/125365
Authority: WO
Inventors: 李伟成; 胡中源; 陈燕; 唐智谋; 张晓军; 郑毅
Original assignee: 龙牌涂料(北京)有限公司
Priority date: 2022-09-09
Filing date: 2022-10-14
Publication date: 2024-03-14
Also published as: CN115449241A

Abstract

An antiviral dry powder art paint, and a preparation method therefor and the use thereof. The antiviral dry powder art paint comprises 1%-5% of Chinese herbal medicine powder. The Chinese herbal medicine powder comprises Lonicerae japonicae flos, Forsythiae fructus, Chrysanthemi indici flos, Isatidis radix, Taraxaci herba, Artemisiae argyi folium, Pogostemonis herba, Acori tatarinowii rhizoma, Caryophylli flos, Cinnamomi ramulus, Chuanxiong rhizoma, Eupatorii herba and borneol. The antiviral dry powder art paint comprises 0.1%-0.5% of thickener, 0.1%-0.3% of cellulose, 0.1%-0.3% of dispersant, 0.1%-0.3% of wetting agent, 0.05%-0.2% of defoaming agent, 0.5%-5% of titanium dioxide, 1%-5% of Chinese herbal medicine powder, 10%-20% of ground calcium carbonate powder, 20%-35% of gypsum powder, 43.5%-57.65% of quartz sand, 0.5%-3% of adhesive and 0.05%-0.3% of retarder. The antiviral dry powder art paint does not contain harmful substances, is non-combustible, has higher environmental protection performance, good coating film texture and higher artistic quality, is convenient and quick, and has cost effectiveness.

Description

An antiviral dry powder art paint and its preparation method and application

Technical field

This article relates to coating technology, especially an anti-viral dry powder art coating and its preparation method and application.

Background technique

At present, indoor walls generally use a coating system of 1-2 coats of plaster, 2-3 coats of interior wall putty, one coat of primer, and two coats of interior wall latex paint. Such a coating system has many construction passes, strict requirements on the flatness and roughness of each coating, and particularly high requirements on the construction skills of the construction workers, so the square meter cost is relatively high. At the same time, due to the widespread spread of the global COVID-19 epidemic in the past two years, some major domestic and foreign paint companies have launched anti-viral paints and have been favored by people. Most of the current anti-viral paints achieve anti-viral properties by adding additives containing silver ions and copper ions. This method makes it easy for heavy metals in the paint to exceed the standard. At the same time, the color of the paint film turns yellow after copper ions are added. In addition, the surface of the paint film The single appearance form cannot meet people's personalized needs for paint decoration effects.

Summary of the invention

The following is an overview of the topics described in detail in this article. This summary is not intended to limit the scope of the claims.

This application provides an antiviral dry powder art paint and its preparation method and application. The antiviral dry powder art paint provided by this application does not contain harmful substances, is non-flammable, has higher environmental performance, has good film texture, is more artistic, convenient and cost-effective.

In an embodiment of the present application, an antiviral dry powder art paint is provided. The antiviral dry powder art paint includes 1-5% Chinese herbal medicine powder; and the Chinese herbal medicine powder includes: honeysuckle, forsythia, wild chrysanthemum, and isatis root. , dandelion, mugwort, patchouli, calamus, clove, cinnamon twig, Ligusticum chuanxiong, Perilla, borneol.

In some embodiments of the present application, the Chinese herbal medicine powder may include: honeysuckle 13-17%, forsythia 13-17%, wild chrysanthemum 4-8%, isatis root 4-8%, dandelion 4-8%, mugwort 8-8 12%, patchouli 4-8%, Acorus 13-17%, clove 3-7%, cassia twig 3-7%, Ligusticum chuanxiong 3-7%, Perrin 3-7%, borneol 0.1-3%.

In some embodiments of the present application, the Chinese herbal medicine powder may include: 15% honeysuckle, 15% forsythia, 6% wild chrysanthemum, 6% isatis root, 6% dandelion, 10% mugwort, 6% patchouli, and 15% calamus. %, clove 5%, cassia twig 5%, Ligusticum chuanxiong 5%, Perrin 5%, borneol 1%.

Honeysuckle, forsythia, wild chrysanthemum, isatis root, dandelion, clove, cinnamon twig, perilla, patchouli, calamus, and chuanxiong adopt the same names of Chinese medicinal materials as in the 2020 edition of the Chinese Pharmacopoeia (see: https://zhiku.bopuyun. com/pc/book/4?zch＝QJNK8a,seobds)

The borneol may be selected from any one of dextroborneol, levoborneol or synthetic borneol.

In some embodiments of the present application, an anti-viral dry powder art paint is provided. In terms of weight percentage, the anti-virus dry powder art paint may include the following components:

Thickener 0.1-0.8%, cellulose 0.1-0.6%, dispersant 0.1-0.6%, wetting agent 0.1-0.6%, defoaming agent 0.05-0.5%, titanium dioxide 0.5-8%, Chinese herbal medicine powder 1-5 %, heavy calcium powder 10-30%, gypsum powder 20-45%, quartz sand 43.5-67.65%, adhesive 0.5-6%, retarder 0.05-0.6%.

In the embodiment of the present application, an antiviral dry powder art paint is provided. The antiviral dry powder art paint may include the following components in terms of weight percentage:

Thickener 0.1-0.5%, cellulose 0.1-0.3%, dispersant 0.1-0.3%, wetting agent 0.1-0.3%, defoaming agent 0.05-0.2%, titanium dioxide 0.5-5%, Chinese herbal medicine powder 1-5 %, heavy calcium powder 10-20%, gypsum powder 20-35%, quartz sand 43.5-57.65%, adhesive 0.5-3%, retarder 0.05-0.3%.

In some embodiments of the present application, the thickener may be calcium bentonite. The calcium bentonite may be highly purified modified calcium bentonite. Bentonite manufacturers (such as Xuanhua Yanbei Mining Co., Ltd.) use the flotation process to remove impurities such as iron and magnesium from the raw calcium bentonite to become highly purified calcium bentonite. This can improve the whiteness of the product and provide the basis for subsequent improvements. Prepare for sex. Highly purified calcium-based swelling and soda ash are uniformly mixed and stirred in a mixer in a weight ratio of 9:1 to become highly purified modified calcium-based bentonite.

In some embodiments of the present application, the cellulose may be propyl methylcellulose. The propyl methylcellulose can be powdered hydroxypropyl methylcellulose, and the viscosity is 30,000 to 200,000 centipoise.

The cellulose viscosity test method is as follows: add 98 parts of pure water to the container, add powdered hydroxypropyl methylcellulose in a thin stream under low-speed stirring (300-500 rpm), and stir for 30 minutes to form a uniform and transparent solution. Then use a Brookfield viscometer to measure and use the 64# rotor to test the Brookfield viscosity of the cellulose aqueous solution.

In some embodiments of the present application, the dispersant may be potassium polyphosphate. The potassium polyphosphate can be powdered potassium polyphosphate, with a particle size of more than 400 mesh.

In some embodiments of the present application, the wetting agent may be a polyoxyethylene ether material. The polyoxyethylene ether material can be a powdery polyoxyethylene ether material, which does not contain APEO substances and other limited substances specified in GB18582.

In some embodiments of the present application, the defoaming agent may be an organosiloxane. The organosiloxane may be powdery organosiloxane with a particle size of 300 mesh or more.

In some embodiments of the present application, the titanium dioxide may be of rutile type with a particle size of 325 mesh or more.

In some embodiments of the present application, the particle size of the heavy calcium powder may be 250-325 mesh.

In some embodiments of the present application, the gypsum powder can be industrially produced gypsum waste residue or natural gypsum crushed into a raw material of 250-400 mesh.

In some embodiments of the present application, the quartz sand may be a white raw material of 20-200 mesh natural ore crushed.

In some embodiments of the present application, the adhesive can be VAE latex powder alone, PVA rubber powder alone, or both.

In some embodiments of the present application, the retarder can be a protein powder material with a particle size of 800-1000 mesh.

In some embodiments of the present application, the Chinese herbal medicine powder may be a pulverized mixture.

In some embodiments of the present application, the highly purified modified calcium bentonite may have an effective pore volume of 0.4-0.6 cm ³ /g.

In some embodiments of the present application, the antiviral dry powder art paint may also include organic pigments and inorganic pigments dedicated to water-based paints, wherein the organic pigments are phthalocyanine blue, phthalocyanine green, bright red, medium yellow, carbon black, etc. , the inorganic pigments are iron oxide red, iron oxide yellow, and iron oxide black.

In the embodiment of the present application, a preparation method of the above-mentioned antiviral dry powder art paint is provided. The preparation method may include the following steps:

(1) Crush the Chinese herbal medicine in proportion to obtain Chinese herbal medicine powder for later use;

(2) Store thickener, cellulose, dispersant, wetting agent, defoaming agent, titanium dioxide, Chinese herbal medicine powder, heavy calcium powder, gypsum powder, quartz sand, adhesive and retarder in their respective storage silos ;

(3) Transport the gypsum powder, heavy calcium powder, and titanium dioxide into a dry powder mixer;

(4) Transport the thickener, the cellulose, the dispersant, the wetting agent, the defoaming agent, the Chinese herbal medicine powder, the adhesive, and the retarder to dry powder mixing Continue stirring in the machine;

(5) Transport quartz sand to the dry powder mixer;

(6) Then continue stirring for 3-5 minutes and stop, and then package after passing the test.

In some embodiments of the present application, step (3) can be conveyed by a screw conveyor.

In some embodiments of the present application, the dry powder mixer in step (3) may be in a stirring state.

In some embodiments of the present application, the Chinese herbal medicine powder can be obtained through the following steps:

(a) Mix 15% honeysuckle, 15% forsythia, 6% wild chrysanthemum, 6% isatis root, 6% dandelion, 10% moxa leaf, 6% patchouli, 15% calamus, 5% clove, 5% cassia twig, The long components of dried Chinese herbal medicines including Ligusticum Chuanxiong 5%, Peilan 5% and Borneolum 1% are cut into 2-5 cm segments;

(b) transport the Chinese herbal medicine in step (a) to a micronizer for crushing to obtain Chinese herbal medicine powder;

(c) Transport the Chinese herbal medicine powder to a cyclone separation device, recycle the dust in the Chinese herbal medicine powder through a dust removal device, and transport the Chinese herbal medicine powder to a Chinese herbal medicine powder packaging process for packaging and use.

In some embodiments of the present application, the cutting of step (a) can be performed in a cutting machine.

In some embodiments of the present application, the transportation of step (b) can be performed by a belt conveyor or a screw conveyor.

In some embodiments of the present application, the crushing of step (b) can be carried out for about 15-20 minutes to obtain Chinese herbal medicine powder of 100-400 mesh.

In the embodiment of the present application, it is provided that the above-mentioned antiviral dry powder art paint can be used in building decoration.

Unless otherwise specified in this application, percentages refer to weight percentages.

Compared with related technologies, this application contains no VOC components, no harmful substances specified in the GB18582--2020 standard, and is non-flammable. Compared with liquid paint products, it has higher environmental performance and good coating texture. It can be applied into different styles of coatings such as relief, imitation brick, imitation bark, and brushed. It is more artistic and improves the grade of wall decoration. Putty and topcoat can be omitted, reducing overall labor and material costs. Different colors can be made by adding pigments. Adding gypsum powder to the paint can independently adjust indoor humidity and reduce coating cracking compared with existing putty, and gypsum has auxiliary anti-viral functions. This application combines traditional Chinese anti-plague prescription literature and selects a variety of Chinese herbal medicines to be added to the coating to form an effective anti-virus and anti-epidemic coating to achieve anti-virus and anti-epidemic effects. The Chinese herbal medicine powder is non-toxic, harmless, safe and environmentally friendly.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the application. Other advantages of the application can be realized and obtained by the solutions described in the specification and drawings.

Figure overview

The drawings are used to provide an understanding of the technical solution of the present application and constitute a part of the specification. They are used to explain the technical solution of the present application together with the embodiments of the present application and do not constitute a limitation of the technical solution of the present application.

Figure 1 shows the preparation process of Chinese herbal medicine powder; 21 is a Chinese herbal medicine cutting machine, 22 is a micronizer, 23 is a cyclone separation device, and 24 is a dust removal device.

The device used in Figure 1 was purchased from Shandong Jingxin Powder Equipment Co., Ltd., or equipment with appropriate production capacity can be selected according to the daily dosage of Chinese herbal medicine powder.

Figure 2 is a preparation process diagram of antiviral Chinese herbal medicine dry powder art paint; 1 is a gypsum powder storage bin, 2 is a heavy calcium powder storage bin, 3 is a quartz sand storage bin, 4 is a titanium dioxide storage bin, and 5 is a titanium dioxide storage bin. Traditional Chinese medicine powder storage silo, 6 is the adhesive storage silo, 7 is the thickener storage silo, 8 is the cellulose storage silo, 9 is the dispersant storage silo, 10 is the wetting agent storage silo, and 11 is the disinfectant storage silo. Foaming agent storage bin, 12 is a retarder storage bin, 13 is a weighing scale, 14 is a weighing scale, and 15 is a dry powder mixer.

Silos 1-12 in Figure 2 are non-standard products and are outsourced (Suzhou Yigong Machinery Co., Ltd.). The specifications and models of each equipment are shown in the table below: Take the daily production of 50 tons of anti-viral Chinese herbal dry powder art paint as an example.

Elaborate

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the embodiments of the present application. Obviously, the described embodiments are part of the present application. Examples, not all examples. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

The thickener selected in this application is highly purified modified calcium bentonite, which enables the components of the dry powder paint to be evenly distributed without stratification when water is added to the dry powder paint. Bentonite manufacturers (such as Xuanhua Yanbei Mining Co., Ltd.) use the flotation process to remove impurities such as iron and magnesium from the raw calcium bentonite to become highly purified calcium bentonite. This can improve the whiteness of the product and provide the basis for subsequent improvements. Prepare for sex. Highly purified calcium-based swelling and soda ash are uniformly mixed and stirred in a mixer in a weight ratio of 9:1 to become highly purified modified calcium-based bentonite. Highly purified modified calcium bentonite has a large effective pore volume, so it has strong adsorption capacity and is non-toxic. At the same time, because it contains calcium ions, it can increase the strength of the coating.

In this application, a certain amount of powdered hydroxypropyl methylcellulose (Hercules GL450) can be added. The viscosity of the powdered hydroxypropyl methylcellulose is 30,000 to 200,000 centipoise.

The cellulose viscosity test method is as follows: add 98 parts of pure water to the container, add powdered hydroxypropyl methylcellulose in a thin stream under low-speed stirring (300-500 rpm), and stir for 30 minutes to form a uniform and transparent solution. Then use a Brookfield viscometer to measure the Brookfield viscosity of the cellulose aqueous solution. There are four rotor specifications from 61 ^# to 64 ^# in the supporting rotor. Choose the 64 ^# rotor to test the Brookfield viscosity of the cellulose aqueous solution.

In this application, a certain amount of powdered potassium polyphosphate (KC from Mingling Chemicals, Germany) can be added, with a particle size of more than 400 mesh.

This application can use powdered polyoxyethylene ether material (R66 from BASF, Germany), which does not contain APEO substances and other limited substances specified in GB18582, such as formaldehyde, lead, cadmium, chromium, mercury and soluble heavy metals. and other substances).

In this application, a certain amount of powdered organosiloxane (Dow Company SP100) can be added, with a particle size of 300 mesh or more.

In this application, a certain amount of heavy calcium powder (CC250 from Guangfu Building Materials Company) can be added.

A certain proportion of Chinese herbal medicine powder can be added in this application. The Chinese herbal medicine powder is a mixture of a variety of Chinese herbal medicines mixed together in a certain proportion and crushed to an appropriate mesh size. The Chinese herbal medicine of the present application continuously emits aromatic odor through the pore channels of the coating, stimulates the human respiratory mucosa to produce secretory immunoglobulin, and has a strong killing effect on viruses and bacteria, so it has a strong preventive effect on infectious diseases.

In this application, a certain amount of rutile titanium dioxide (product of Panzhihua Iron and Steel Vanadium Titanium Group Co., Ltd.) can be added, with a particle size of 325 mesh or more.

In this application, a certain amount of quartz sand (Guangfu Building Materials Company) with different mesh sizes can be added.

This application uses gypsum powder (natural gypsum from Hebei Anyi Gypsum Building Materials Co., Ltd. or gypsum waste residue from industrial by-products such as nearby power plants and phosphoric acid plants) as the main powder filler. Dry powder coatings with added gypsum have high strength and good water resistance. At the same time, gypsum powder has an auxiliary anti-virus and epidemic prevention effect. Gypsum powder can be selected from industrial gypsum waste residue or natural gypsum crushed to a suitable mesh size.

In this application, a certain amount of adhesive (VAE latex powder from Wacker Company in Germany or PVA rubber powder from Shanxi Sanwei Company) can be added. The adhesive can be powdered rubber powder, which can be VAE latex powder or PVA rubber powder or both.

In this application, a certain amount of protein-based gypsum retarder (DH25 from Wacker Company of Germany) can be added.

This application can selectively add a certain amount of organic pigments and inorganic pigments special for water-based coatings (pigments from Bayer in Germany or Shanghai Yipin Company), where the organic pigments are phthalocyanine blue, phthalocyanine green, bright red, medium yellow, and carbon black. The inorganic pigments are iron oxide red, iron oxide yellow, and iron oxide black.

The present application will be further described in detail below in conjunction with specific implementation modes:

Example 1:

Ingredients of Chinese herbal medicine powder:

Honeysuckle 15% (using the flower part, purchased from the Chinese medicinal materials wholesale market in Linyi, Shandong or Fengqiu, Henan), 15% forsythia (using the fruit part, purchased from the Chinese medicinal materials wholesale market in Shexian, Handan City, Hebei Province), 6% wild chrysanthemum (The flower part is used, purchased from the Chinese medicinal materials market in Tongxiang City, Zhejiang Province), 6% of Radix isatidis (the roots are used, purchased from the Chinese medicinal materials wholesale market in Taihe County, Fuyang City, Anhui Province), 6% of Dandelion (the whole plant is used, purchased from Jixi, Heilongjiang Province) purchased from the Municipal Traditional Chinese Medicine Wholesale Market), 10% mugwort leaves (purchased from the whole plant, purchased from the Traditional Chinese Medicine Wholesale Market in Qichun County, Hubei Province), 6% patchouli (purchased from the stem and leaf parts, purchased from the Traditional Chinese Medicine Wholesale Market in Zhanjiang City, Guangdong Province) ), Acorus 15% (using the rhizome part, purchased from the Traditional Chinese Medicine Wholesale Market of Pujiang County, Jinhua City, Zhejiang Province), Clove 5% (using the bud part, purchased from the Traditional Chinese Medicine Wholesale Market of Changbai County, Baishan, Jilin Province), Guizhi 5 % (using the branch part, purchased from the Chinese herbal medicine wholesale market in Yulin City, Guangxi Province), 5% of Ligusticum chuanxiong (using the rhizome part, purchased from the Chinese herbal medicine wholesale market in Dujiangyan City, Sichuan Province), Perrin 5% (using the whole plant, purchased from Suqian, Jiangsu Province) Purchased from Siyang County Traditional Chinese Medicine Wholesale Market), borneol 1% (purchased from Jiangxi Cedar Natural Medicinal Oil Co., Ltd.).

Preparation method of Chinese herbal medicine powder (see Figure 1):

(a) Cut the long components of the above dried Chinese herbal medicine into 2-5 cm in a cutting machine in advance to facilitate subsequent powdering;

(b) The chopped Chinese herbal medicine is transported to a micron powder machine through a belt conveyor or screw conveyor, crushed and mixed into 100-400 mesh in about 15-20 minutes;

(c) The crushed Chinese herbal medicine powder enters the cyclone separation device, and the upper dust removal device is recycled. The lower product goes to the Chinese herbal medicine powder packaging process, and the packaged Chinese herbal medicine is ready for use.

Example 2 (see Figure 2):

Preparation method of antiviral Chinese herbal dry powder art paint:

(1) Store the ingredients in the formula in their respective storage silos in advance;

(2) During production, bulk gypsum powder, heavy calcium powder, titanium dioxide and other powders are transported to the mixer under paint stirring state through a screw conveyor according to the measurement in the formula;

(3) Transport the thickener, cellulose, dispersant, wetting agent, defoaming agent, mixed Chinese herbal medicine powder 1-2%, adhesive, retarder and other small additives into the mixer to continue stir; stir;

(4) Transport the quartz sand with a specific gravity into the mixer;

(5) After all the materials are added, continue stirring for 3-5 minutes and stop the machine. Pack after passing the test.

Example 3:

The antiviral Chinese herbal medicine dry powder art coating provided by this application includes the following components in terms of weight percentage:

Thickener 0.5%, cellulose 0.1%, dispersant 0.1%, wetting agent 0.1%, defoaming agent 0.05%, titanium dioxide 0.5%, Chinese herbal medicine powder 1%, heavy calcium powder 20%, gypsum powder 20%, quartz 57.65% sand, 0.5% adhesive, 0.05% retarder.

Example 4:

Thickener 0.3%, cellulose 0.2%, dispersant 0.2%, wetting agent 0.2%, defoaming agent 0.12%, titanium dioxide 2.5%, Chinese herbal medicine powder 1.5%, heavy calcium powder 15%, gypsum powder 28%, quartz 49.78% sand, 2.0% adhesive, 0.2% retarder.

Example 5:

Thickener 0.1%, cellulose 0.3%, dispersant 0.3%, wetting agent 0.3%, defoaming agent 0.2%, titanium dioxide 5%, Chinese herbal medicine powder 2%, heavy calcium powder 10%, gypsum powder 35%, quartz 43.5% sand, 3.0% adhesive, 0.3% retarder.

The product performance indicators of the above embodiments 3-5 meet the gypsum indicator requirements of JC/T517-2004 stucco gypsum bottom layer, as shown in Table 1.

Table 1

The products of the above-mentioned Examples 3-5 were subjected to the following but not limited to the following environmental index tests, and the results met the requirements specified in the GB18582-2020 standard, as shown in Table 2.

Table 2

The product of the above-mentioned Example 3 was tested for the anti-viral data indicators of the following but not limited to the following viruses in accordance with ISO 21702:2019, using three types of but not limited to the three experimental viruses and host tests, as shown in Table 3, Table 4, Table 5 shown. The addition amounts of the Chinese herbal medicine powder and gypsum in Examples 4 and 5 are higher than in Example 3, and theoretically the antiviral effect will be better.

table 3

Table 4

table 5

This application discloses a Chinese herbal dry powder art coating with anti-virus and epidemic prevention properties and a preparation method thereof. When using this product, add water in proportion and mix evenly before use. Various construction methods such as spraying, roller coating, and troweling can be used to create coating effects in different artistic styles. At the same time, the putty and interior wall latex paint processes can be omitted, thereby reducing the overall cost. In addition, the product has good anti-virus and anti-epidemic properties by adding specific compound Chinese herbal medicine and gypsum powder, which is particularly suitable for promotion and application under the current global COVID-19 epidemic situation. The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included in the protection scope of this application.

Claims

An anti-viral dry powder art paint, wherein the anti-viral dry powder art paint includes 1-5% Chinese herbal medicine powder; and

The Chinese herbal medicine powder includes: honeysuckle, forsythia, wild chrysanthemum, isatis root, dandelion, mugwort leaf, patchouli, calamus, clove, cinnamon twig, chuanxiong, peilan, and borneol.
The antiviral dry powder art paint according to claim 1, wherein the Chinese herbal medicine powder includes: honeysuckle 13-17%, forsythia 13-17%, wild chrysanthemum 4-8%, isatis root 4-8%, dandelion 4 -8%, Mugwort 8-12%, Patchouli 4-8%, Acorus 13-17%, Clove 3-7%, Guizhi 3-7%, Ligusticum chuanxiong 3-7%, Perrin 3-7%, Borneolin 0.1-3%;

Preferably, honeysuckle 15%, forsythia 15%, wild chrysanthemum 6%, isatis root 6%, dandelion 6%, mugwort 10%, patchouli 6%, calamus 15%, clove 5%, cassia twig 5%, chuanxiong 5%, Perrin 5%, Borneolan 1%.
The antiviral dry powder art paint according to any one of claims 1 to 2, wherein, by weight percentage, the antiviral dry powder art paint includes the following components: 1-5% Chinese herbal medicine powder, thickener 0.1-0.5%, cellulose 0.1-0.3%, dispersant 0.1-0.3%, wetting agent 0.1-0.3%, defoaming agent 0.05-0.2%, titanium dioxide 0.5-5%, heavy calcium powder 10-20%, Gypsum powder 20-35%, quartz sand 43.5-57.65%, adhesive 0.5-3%, retarder 0.05-0.3%.
The antiviral dry powder art paint according to claim 3, wherein the thickener is calcium bentonite;

The cellulose is hydroxypropyl methylcellulose;

The dispersant is potassium polyphosphate;

The wetting agent is a polyoxyethylene ether material, which does not contain APEO substances and other limited substances specified in GB18582;

The defoaming agent is organosiloxane;

The titanium dioxide is rutile type, with a particle size of 325 mesh or more;

The particle size of the heavy calcium powder is 250-325 mesh;

The gypsum powder is the raw material of industrially produced gypsum waste residue or natural gypsum crushed to 250-400 mesh;

The quartz sand is a white 20-200 mesh natural ore crushed raw material;

The adhesive is VAE latex powder or PVA rubber powder or both;

Or the retarder is a protein retarder.
The antiviral dry powder art paint according to claim 4, wherein the calcium bentonite has an effective pore volume of 0.4-0.6 cm 3 /g.
The antiviral dry powder art paint according to any one of claims 1 to 2, wherein the Chinese herbal medicine powder is a pulverized mixture.
The antiviral dry powder art paint according to any one of claims 1 to 2, wherein the antiviral dry powder art paint also includes organic pigments and inorganic pigments dedicated to water-based paints, wherein the organic pigment is phthalocyanine blue , phthalocyanine green, bright red, medium yellow, carbon black, and the inorganic pigments are iron oxide red, iron oxide yellow, and iron oxide black.
The preparation method of antiviral dry powder art paint according to any one of claims 1 to 7, said preparation method includes the following steps:

(1) Crush the Chinese herbal medicine in proportion to obtain Chinese herbal medicine powder for later use;

(2) Store thickener, cellulose, dispersant, wetting agent, defoaming agent, titanium dioxide, Chinese herbal medicine powder, heavy calcium powder, gypsum powder, quartz sand, adhesive and retarder in their respective storage silos ;

(3) Transport the gypsum powder, heavy calcium powder, and titanium dioxide into a dry powder mixer;

(4) Transport the thickener, the cellulose, the dispersant, the wetting agent, the defoaming agent, the Chinese herbal medicine powder, the adhesive, and the retarder to the Continue stirring in the dry powder mixer;

(5) Transport quartz sand into the dry powder mixer;

(6) Then continue stirring for 3-5 minutes and stop, and then package after passing the test.
The preparation method according to claim 8, wherein step (3) is transported by a screw conveyor;

Or the dry powder mixer in step (3) is in a stirring state.
The preparation method according to claim 8, wherein the Chinese herbal medicine powder is obtained by the following steps:

(a) Mix 15% honeysuckle, 15% forsythia, 6% wild chrysanthemum, 6% isatis root, 6% dandelion, 10% moxa leaf, 6% patchouli, 15% calamus, 5% clove, 5% cassia twig, The long components of dried Chinese herbal medicines including Ligusticum Chuanxiong 5%, Peilan 5% and Borneolum 1% are cut into 2-5 cm segments;

(b) transport the Chinese herbal medicine in step (a) to a micronizer for crushing to obtain Chinese herbal medicine powder;

(c) Transport the Chinese herbal medicine powder to a cyclone separation device, recycle the dust in the Chinese herbal medicine powder through a dust removal device, transport the Chinese herbal medicine powder to the Chinese herbal medicine powder packaging process, and package it for later use; optionally

The cutting of step (a) is performed in a cutting machine;

The transportation in step (b) is carried out by belt conveyor or screw conveyor;

The crushing of step (b) is carried out for about 15-20 minutes to obtain Chinese herbal medicine powder of 100-400 mesh.
The application of the antiviral dry powder art paint according to any one of claims 1 to 7 in building decoration.