CN113248995A

CN113248995A - Chinese herbal medicine deodorization paint and preparation method thereof

Info

Publication number: CN113248995A
Application number: CN202110321894.4A
Authority: CN
Inventors: 胡中源; 陈燕; 郑毅
Original assignee: Dragon Brand Coating Beijing Co ltd
Current assignee: Dragon Brand Coating Beijing Co ltd
Priority date: 2021-03-25
Filing date: 2021-03-25
Publication date: 2021-08-13

Abstract

The application discloses a Chinese herbal medicine deodorization coating composition, which comprises the following raw materials in parts by weight: 120-140 parts of water, 1-2 parts of wetting agent, 1-2 parts of pH value regulator, 4-6 parts of dispersant, 10-12 parts of antifreeze, 100-250 parts of titanium dioxide, 80-100 parts of kaolin, 80-200 parts of heavy calcium carbonate, 10-15 parts of diatomite, 60-100 parts of Chinese herbal medicine deodorant, 300 parts of aqueous synthetic resin emulsion, 1-3 parts of bactericide, 15-25 parts of film-forming assistant, 2-4 parts of defoaming agent, 4-8 parts of flatting agent and 4-6 parts of thickener, wherein the Chinese herbal medicine deodorant is ethanol extract of aloe, yucca, camellia and ginkgo leaf.

Description

Chinese herbal medicine deodorization paint and preparation method thereof

Technical Field

The application relates to the field of coatings, in particular to a Chinese herbal medicine deodorization coating and a preparation method thereof. The coating can play a role in purifying air when applied to the field of coatings.

Background

With the development of society, the requirements of people on rooms become various, but the requirements are accompanied by a great deal of indoor pollution, because a great deal of artificial boards, adhesives, coatings and the like are used in the decoration process, the newly decorated rooms contain a great deal of various harmful pungent smells, researches show that the harm of indoor harmful gases is not only nose and eyes stimulation, but also great harm to human bodies after a long time, and on the other hand, the existing coatings do not have the capacity of purifying malodorous components in indoor air, so that the development of a deodorizing coating is urgently needed.

Disclosure of Invention

The present application relates to a deodorant paint containing herbal ingredients, wherein the herbal ingredients are natural ingredients separated and extracted from natural plants. Through specific selection of natural plants, the Chinese herbal medicine components have antibacterial, bactericidal and deodorant effects, have good adsorption and decomposition effects on inorganic substances such as ammonia and hydrogen sulfide and malodors such as low-molecular fatty acid, amines, aldehydes, ketones, ethers, halogenated hydrocarbons and organic substances, promote the original molecular structure of peculiar smell molecules to be changed, so that the peculiar smell is lost, and the effect of removing the peculiar smell is achieved; and it contains highly reactive functional compounds and terpenoids. Because the coating diameter of this application is little, and specific surface area increases, and specific surface effect increases, and the activity is strong, can adsorb the smell molecule in the air and it contains hundreds of active ingredient, and the environmental protection is no secondary pollution.

In order to achieve the purpose of the application, the application provides a Chinese herbal medicine deodorization coating composition, which comprises the following raw materials in parts by weight:

wherein the Chinese herbal medicine deodorant is aloe: and (3) yucca: and (3) camellia: ginkgo leaf: the Chinese herbal medicine deodorant extract with the total effective component of 25 percent is obtained by mixing and extracting ethanol according to the mass ratio of 1:1:1: 12. In the present application, ethanol may be anhydrous ethanol or ethanol containing a water content within 5%.

In the present application, "25% of total effective components" means a ratio of the weight of aloe, yucca, camellia and ginkgo leaves to the total weight of aloe, yucca, camellia, ginkgo leaves and ethanol.

In some embodiments, the aqueous synthetic resin emulsion may be an aqueous emulsion of a styrene-acrylate copolymer, such as commercially available ACRONAL 296DS emulsion from basf.

In some embodiments, the water may be deionized water or other purified water.

In some embodiments, the wetting agent may be one of polyoxyethylene alkylphenol ethers, polyoxyethylene fatty alcohol ethers, polyoxyethylene polyoxypropylene block copolymers, or mixtures thereof, for example, LCN407 manufactured by clariant corporation.

In some embodiments, the thickener may be a polyurethane-based thickener, such as RM-8W manufactured by the Dow company; the dispersant may be ammonium polyacrylate dispersant, such as SN-DISPERSANT 5027 manufactured by Nopock; the antifoaming agent may be a mineral oil type antifoaming agent, such as NXZ of nippon family; the leveling agent may be a polyurethane-based leveling agent such as RM-2020 manufactured by dow corporation; the titanium dioxide can be rutile type titanium dioxide, such as R-996 titanium dioxide of Tetrapython.

In some embodiments, the herbal deodorant is an extract obtained by: by mixing aloe: and (3) yucca: and (3) camellia: ginkgo leaf: soaking in ethanol (such as 95% ethanol) at a mass ratio of 1:1:1:1:12 for 24 hr, extracting at a temperature below 10 deg.C under negative pressure for 24 hr, and filtering to obtain Chinese medicinal deodorant extractive solution containing 25% of total effective components.

In some embodiments, the antifreeze agent can be propylene glycol, such as, for example, propylene glycol produced petrochemically in china; the coalescent may be an alcohol ester-12, such as alcohol ester-12 of Istman, USA.

In some embodiments, the biocide may be 2-methyl-4-isothiazolin-3-one, such as AMP-95, a mixture of about 95% 2-amino-2-methyl-1-propanol and about 5% water, developed by dow america.

In some embodiments, the pH adjusting agent may be 2-amino-2-methyl-1-propanol.

In another aspect, the present application provides a method of preparing the herbal deodorant coating composition as described above, comprising the steps of:

according to the raw material component ratio, sequentially adding a bactericide, a dispersing agent, a wetting agent, an antifreezing agent, a pH regulator and a film-forming aid into water under a stirring state, and uniformly mixing to obtain a mixture 1;

sequentially adding the Chinese herbal medicine deodorant, rutile titanium dioxide, kaolin, heavy calcium and diatomite into the mixture 1, and uniformly mixing to ensure that the fineness of the obtained feed liquid is less than or equal to 55 mu m, thereby obtaining a mixture 2;

sequentially adding the aqueous synthetic resin emulsion and the defoaming agent into the mixture 2, and uniformly mixing to obtain paint paste;

adding a leveling agent into the paint paste, uniformly mixing, adding a thickening agent, and adjusting the viscosity to 90-100KU to obtain the Chinese herbal medicine deodorizing coating composition.

Compared with the prior art, the traditional Chinese medicine deodorant is a plant deodorant added in the deodorant coating, so that the traditional Chinese medicine deodorant is better in environment-friendly effect and free of secondary pollution compared with the deodorant coating on the market. The plant deodorant is prepared and produced by utilizing the principle that natural plants adsorb and decompose various odor molecules, such as: the aloe absorbs and decomposes formaldehyde; absorbing and decomposing sulfur dioxide and ammonia by using yucca; absorbing and decomposing benzene and cresol by camellia; the ginkgo leaves absorb and decompose hydrogen sulfide. The plant deodorant generally has no strong fragrance, and fundamentally decomposes stink gas to really and effectively purify the environment.

According to the application, the selected traditional Chinese medicine deodorant is optimized through repeated comparison tests, and finally fresh aloe, yucca, camellia and ginkgo leaves on the market are selected, mixed according to the weight ratio of 1:1:1:1, smashed, added with 12 parts of 95% ethanol, soaked for 24 hours, extracted for 24 hours at low temperature under negative pressure, and filtered to obtain the traditional Chinese medicine deodorant extracting solution with 25% of total effective components. The traditional Chinese medicine deodorant has wide raw material sources and simple preparation process. Moreover, the Chinese herbal medicine raw materials are matched and optimized to obtain a better synergistic deodorization effect. The biggest difficulty of applying the Chinese herbal medicine deodorant to the paint is compatibility with the paint, the Chinese herbal medicine extracts are often essential oils and have incompatibility in the water-based paint, the 95% ethanol is adopted for extraction, and the obtained extract has good water-phase compatibility and can be well mixed into the water-based paint and keep stability.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims thereof.

Detailed Description

Reference will now be made in detail to various exemplary embodiments of the present application, which should not be taken as limiting the application, but rather as a more detailed description of certain aspects, features and embodiments of the application.

It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. In addition, for numerical ranges in this application, it is understood that each intervening value, between the upper and lower limit of that range, is also specifically disclosed. Every smaller range between any stated value or intervening value in a stated range and any other stated or intervening value in a stated range is also encompassed within the application. The upper and lower limits of these smaller ranges may independently be included or excluded in the range.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. Although only the preferred methods and materials are described herein, any methods and materials similar or equivalent to those described herein can be used in the practice or testing of the present application. All documents mentioned in this specification are incorporated by reference herein for the purpose of disclosing and describing the methods and/or materials associated with the documents. In case of conflict with any incorporated document, the present specification will control.

It will be apparent to those skilled in the art that various modifications and variations can be made in the specific embodiments described herein without departing from the scope or spirit of the application. Other embodiments will be apparent to the skilled person from the description of the present application. The specification and examples are exemplary only.

As used herein, the terms "comprising," "including," "having," "containing," and the like are open-ended terms that mean including, but not limited to.

The "parts" mentioned in the present application are in terms of parts by mass unless otherwise specified. Furthermore, the starting materials cited in the present application are commercially available.

Example 1

The Chinese herbal medicine deodorization coating composition is prepared by mixing the following components in parts by weight: 140 parts of water, 1 part of wetting agent, 1 part of pH value regulator, 4 parts of dispersing agent, 10 parts of antifreezing agent, 150 parts of rutile titanium dioxide, 80 parts of kaolin, 100 parts of triple superphosphate, 10 parts of diatomite, 60 parts of Chinese herbal medicine deodorant, 300 parts of aqueous synthetic resin emulsion, 1 part of bactericide, 15 parts of film forming aid, 3 parts of defoaming agent, 4 parts of flatting agent and 4 parts of thickening agent.

The Chinese herbal medicine deodorizing coating is prepared by the following preparation method:

(1) weighing the raw material components according to the proportion, adding deionized water into a reaction tank, stirring at the speed of 150rpm, sequentially adding a bactericide, a pH value regulator, a dispersant, a wetting agent and an antifreezing agent, slowly adding a film forming auxiliary agent, and then stirring at the speed of 150rpm for 5 min;

(2) continuously and slowly adding rutile titanium dioxide, Chinese herbal medicine deodorant extract, kaolin, coarse whiting and diatomite into a reaction tank in sequence, stirring at 1200rpm for 30min until the mixture is uniform, and then using a scraper fineness meter to ensure that the scraping fineness is up to 55um, wherein the requirement on the fineness is less than or equal to 55 um;

(3) sequentially adding the aqueous synthetic resin emulsion and the defoaming agent into a reaction tank, and stirring at the dispersion speed of 700rpm for 10 minutes until the paint slurry is uniform;

(4) and slowly adding a leveling agent into the reaction tank, stirring at 900rpm for 5 minutes, measuring the initial viscosity, adding a thickening agent according to the initial viscosity, thickening to 25 ℃ and 100KU by using a stormer viscometer, and preparing the Chinese herbal medicine deodorizing coating.

The aqueous synthetic resin emulsion used in this example is an acrylic ester-acrylic acid copolymer aqueous emulsion, i.e., ACRONAL 296DS emulsion produced by basf corporation; the wetting agent is a colaine alkyl polyoxyethylene ether wetting agent LCN 407; the dispersant is ammonium polyacrylate dispersant 5027 of Nopochaceae; the antifoaming agent used was NXZ from Nopock.

The Chinese herbal medicine deodorant is an extracting solution obtained by the following steps: mixing aloe: and (3) yucca: and (3) camellia: ginkgo leaf: stirring and soaking 95% ethanol at a mass ratio of 1:1:1:12 for 24h, extracting at low temperature under negative pressure for 24h, and filtering the residue to obtain Chinese herbal medicine deodorant extractive solution with 25% of effective components.

The titanium dioxide is rutile titanium dioxide produced by chlorination process, and LR996 of python. The kaolin used is calcined kaolin DB80 of Shanxi Jinyu, and the ground calcium carbonate used is ground calcium carbonate CC-700 of Guangfu. The thickener is polyurethane, Dow RW-8W. The flatting agent is solvent-free polyurethane flatting agent, Dow RW-2020. The film-forming auxiliary agent is selected from Qilu Issman Special chemical industry Co

An ester alcohol. The antifreeze agent is propylene glycol of China petrochemical company Limited. The bactericide used is Dow RS.

Example 2

The Chinese herbal medicine deodorization coating composition is prepared by mixing the following components in parts by weight: : 130 parts of water, 1.5 parts of wetting agent, 1.5 parts of pH value regulator, 5 parts of dispersing agent, 11 parts of anti-freezing agent, 180 parts of rutile titanium dioxide, 90 parts of kaolin, 140 parts of heavy calcium carbonate, 12 parts of diatomite, 75 parts of Chinese herbal medicine deodorant, 350 parts of aqueous synthetic resin emulsion, 1.5 parts of bactericide, 20 parts of film-forming assistant, 3 parts of defoaming agent, 6 parts of flatting agent and 5 parts of thickening agent.

The preparation method and the raw material source of this example are the same as those of example 1.

Example 3

The Chinese herbal medicine deodorization coating composition is prepared by mixing the following components in parts by weight: 140 parts of water, 2 parts of wetting agent, 2 parts of pH value regulator, 6 parts of dispersing agent, 12 parts of antifreezing agent, 200 parts of rutile titanium dioxide, 100 parts of kaolin, 110 parts of heavy calcium, 15 parts of diatomite, 90 parts of Chinese herbal medicine deodorant, 450 parts of aqueous synthetic resin emulsion, 2 parts of bactericide, 25 parts of film-forming assistant, 4 parts of defoaming agent, 7 parts of flatting agent and 6 parts of thickening agent.

Example 4

The Chinese herbal medicine deodorization coating composition is prepared by mixing the following components in parts by weight: 140 parts of water, 2 parts of wetting agent, 2 parts of pH value regulator, 6 parts of dispersing agent, 12 parts of antifreezing agent, 220 parts of rutile titanium dioxide, 100 parts of kaolin, 80 parts of triple superphosphate, 15 parts of diatomite, 100 parts of Chinese herbal medicine deodorant, 450 parts of aqueous synthetic resin emulsion, 2 parts of bactericide, 25 parts of film-forming assistant, 4 parts of defoaming agent, 7 parts of flatting agent and 6 parts of thickening agent.

The Chinese herbal medicine deodorizing coating compositions prepared in examples 1 to 4 of the present application were compared with a commercially available conventional interior wall coating (comparative example 1) and a commercially available bamboo charcoal interior wall coating having harmful substances adsorbed (comparative example 2), and examined, and are shown in Table 2

As can be seen from the above table, the conventional interior wall coating sold in the market has no function of eliminating odor gases such as formaldehyde, ammonia and the like, the bamboo charcoal interior wall coating sold in the market has a good effect of eliminating formaldehyde and ammonia, but has a poor effect of eliminating sulfur dioxide and hydrogen sulfide gases, and after the herbal deodorant disclosed by the application is added into the coating, the bamboo charcoal interior wall coating has a good deodorizing effect on harmful odors such as formaldehyde, ammonia, sulfur dioxide, hydrogen sulfide and the like, so that the bamboo charcoal interior wall coating is a high-performance coating which has high environmental protection performance, scrubbing resistance and deodorizing performance.

Although the embodiments disclosed in the present application are described above, the descriptions are only for the convenience of understanding the present application, and are not intended to limit the present application. It will be apparent to those skilled in the art that various modifications and variations can be made in the form and details of the disclosed embodiments without departing from the spirit and scope of the disclosure, but the scope of the disclosure is to be determined only by the appended claims.

Claims

1. A Chinese herbal medicine deodorization coating composition comprises the following raw materials in parts by weight:

wherein the Chinese herbal medicine deodorant is aloe: and (3) yucca: and (3) camellia: ginkgo leaf: mixing ethanol at a mass ratio of 1:1:1:1:12, and extracting to obtain Chinese herbal medicine deodorant extract with total effective component of 25%, wherein the ethanol is anhydrous ethanol or ethanol containing water content within 5%.

2. The composition of claim 1, wherein the aqueous synthetic resin emulsion is a styrene-acrylate copolymer aqueous emulsion.

3. The composition of claim 1, wherein the water is deionized water.

4. The composition of claim 1, wherein the wetting agent is one of polyoxyethylene alkylphenol ethers, polyoxyethylene fatty alcohol ethers, polyoxyethylene polyoxypropylene block copolymers, or mixtures thereof.

5. The composition of claim 1, wherein the thickener is a polyurethane-based thickener; the dispersant is ammonium polyacrylate dispersant; the defoaming agent is mineral oil defoaming agent; the flatting agent is a polyurethane flatting agent; the titanium dioxide is rutile type titanium dioxide.

6. The composition according to claim 1, wherein the herbal deodorant is obtained by: by mixing aloe: and (3) yucca: and (3) camellia: ginkgo leaf: stirring and soaking the mixture for 24 hours by using ethanol according to the mass ratio of 1:1:1:1:12, extracting the mixture for 24 hours at the temperature lower than 10 under negative pressure, and filtering the dregs to obtain the Chinese herbal medicine deodorant extract with the total effective component of 25%.

7. The composition of claim 1, wherein the anti-freeze agent is propylene glycol and the coalescent is alcohol ester-12.

8. The composition of claim 1, wherein the bactericide is 2-methyl-4-isothiazolin-3-one.

9. The composition of claim 1, wherein the pH adjusting agent is 2-amino-2-methyl-1-propanol.

10. A method of preparing a herbal deodorant coating composition according to any one of claims 1-9, comprising the steps of:

according to the raw material component ratio, under the stirring state, sequentially adding a bactericide, a dispersing agent, a wetting agent, an antifreezing agent, a pH regulator and a film-forming aid into water, and uniformly mixing to obtain a mixture 1;

sequentially adding a Chinese herbal medicine deodorant, rutile titanium dioxide, kaolin, heavy calcium and diatomite into the mixture 1, and uniformly mixing to ensure that the fineness of the obtained feed liquid is less than or equal to 55 mu m, thereby obtaining a mixture 2;

sequentially adding the aqueous synthetic resin emulsion and the defoaming agent into the mixture 2, and uniformly mixing to obtain paint slurry;