阅读说明：本技术 具有自清洁、美化功能的真石漆及其制备方法 (stone-like paint with self-cleaning and beautifying functions and preparation method thereof ) 是由 程志林 曹维维 李法鑫 于 2019-07-26 设计创作，主要内容包括：本发明公开了一种具有自清洁、美化环境功能的真石漆及其制备方法,真石漆包含以下重量份的原料：水100-160份、纤维素1-3份、多功能助剂1-3份、硅丙乳液140-190份、分散剂1-5份、防冻剂4-9份、成膜助剂6-11份、消泡剂0.5-3份、防腐剂1-5份、增稠剂0.5-2份、美化环境材料30-50份、自清洁功能材料30-50份以及天然彩砂600-650份。该配方制备的真石漆中包含能释放负离子的美化环境材料,可以实现环境净化；还能将美化环境材料和自清洁功能材料形成微米-纳米交替结构,提高涂层表面粗糙度,增强拒水性,实现自清洁作用。(the invention discloses a stone-like paint with self-cleaning and environment beautifying functions and a preparation method thereof, wherein the stone-like paint comprises the following raw materials in parts by weight: 160 parts of water, 1-3 parts of cellulose, 1-3 parts of multifunctional auxiliary agent, 190 parts of silicone-acrylic emulsion 140, 1-5 parts of dispersing agent, 4-9 parts of antifreezing agent, 6-11 parts of film forming auxiliary agent, 0.5-3 parts of defoaming agent, 1-5 parts of preservative, 0.5-2 parts of thickening agent, 30-50 parts of environment beautifying material, 30-50 parts of self-cleaning functional material and 650 parts of natural color sand 600. The stone-like paint prepared by the formula contains environment beautifying materials capable of releasing negative ions, so that the environment can be purified; and the environment beautifying material and the self-cleaning functional material can form a micron-nanometer alternate structure, so that the surface roughness of the coating is improved, the water repellency is enhanced, and the self-cleaning effect is realized.)

1. The stone-like paint with the functions of self cleaning and beautifying the environment is characterized by comprising the following raw materials in parts by weight: 160 parts of water, 1-3 parts of cellulose, 1-3 parts of multifunctional auxiliary agent, 190 parts of silicone-acrylic emulsion 140, 1-5 parts of dispersing agent, 4-9 parts of antifreezing agent, 6-11 parts of film forming auxiliary agent, 0.5-3 parts of defoaming agent, 1-5 parts of preservative, 0.5-2 parts of thickening agent, 30-50 parts of environment beautifying material, 30-50 parts of self-cleaning functional material and 650 parts of natural color sand 600.

2. the stone-like paint with self-cleaning and beautifying functions as claimed in claim 1, wherein said cellulose is high-performance hydroxyethyl cellulose.

The antifreezing agent is propylene glycol; the film-forming additive is any one of dodecyl alcohol ester, ethylene glycol monobutyl ether and benzyl alcohol;

the defoamer is a mineral oil based compound;

The preservative is benzisothiazolinone or carbazone;

the dispersant is a polyacrylic amine salt dispersant.

3. The stone-like paint with self-cleaning and beautifying functions as claimed in claim 1, wherein said thickener is one of nonionic polyurethane associated thickener, anionic alkali swelling thickener or hydrophobically modified associated anionic alkali swelling thickener.

4. The stone-like paint with self-cleaning and beautifying functions as claimed in claim 1, wherein the self-cleaning functional material is modified nano titanium dioxide; the environment beautifying material is modified natural mineral hexacyclic ring stone superfine micropowder.

5. A method for preparing the stone-like paint with self-cleaning and beautifying functions as claimed in any one of claims 1 to 4, which comprises the following steps:

S1: weighing the components, adding cellulose into water under a stirring state, and stirring at room temperature until the state is not changed any more to obtain a mixture;

S2: under the stirring state, sequentially adding a multifunctional auxiliary agent, a silicone-acrylic emulsion, a dispersing agent, an antifreezing agent, a film-forming auxiliary agent, a defoaming agent, a preservative, a thickening agent, an environment beautifying material and a self-cleaning functional material into the mixture to prepare a natural stone paint base material pre-slurry;

S3: and transferring the obtained base material pre-slurry of the real stone paint into a horizontal stirring kettle, pre-stirring for 5-10min at the rotating speed of 500 plus one year of 1000rpm, reducing the stirring rotating speed to 200 plus one year of 300rpm, adding the natural colored sand, and immediately stopping stirring after uniform stirring to obtain the finished product of the real stone paint.

6. the method for preparing a stone-like paint with self-cleaning and beautifying functions as claimed in claim 5, wherein the stirring conditions in S1 are as follows: stirring at 500-; the stirring speed in S2 was 500-.

7. The method for preparing a stone-like paint with self-cleaning and beautifying functions as claimed in claim 5, wherein the specific preparation method of the self-cleaning functional material in S2 is as follows: adding 5 parts by weight of gamma-ureidopropyltriethoxysilane into 50-60 parts by weight of nano titanium dioxide, mixing, adding 100 parts of water, stirring for 30-40min under the heating condition of 80 ℃, adding 45-50 parts of ethyl orthosilicate, and continuously stirring for 45-50min to obtain the self-cleaning functional material.

8. The method for preparing a stone-like paint with self-cleaning and beautifying functions as claimed in claim 5, wherein the specific preparation method of the environment beautifying material in S2 is as follows: preparing natural mineral hexacyclic ring stone into superfine powder by using a superfine mill, dropwise adding a nonionic fluorocarbon surfactant into the superfine powder, stirring for 20-30min after dropwise adding is finished, heating to 80-85 ℃ and keeping for 35-40min, and filtering, washing and drying to obtain the environment beautifying material.

9. The method for preparing stone-like paint with self-cleaning and beautifying functions as claimed in claim 8, wherein said superfine powder is 2000 mesh.

10. The method for preparing a stone-like paint with self-cleaning and beautifying functions as claimed in claim 8, wherein said non-ionic fluorocarbon surfactant is added in an amount of 8-10% of the total amount of said ultra-fine powder.

Technical Field

The invention relates to the technical field of environment-friendly coatings, in particular to a stone-like paint with self-cleaning and beautifying functions and a preparation method thereof.

Background

The stone-like paint is a kind of coating material whose decorative effect is exactly similar to marble and granite, and is mainly made up by using natural stone powder with various colours, and can be used for imitating stone effect of external wall of building, so that it is also called liquid stone. The building decorated by the stone paint has natural and real natural color, gives people elegant, harmonious and solemn aesthetic feeling, and is suitable for indoor and outdoor decoration of various buildings; especially, the decoration on the curved surface building is vivid and lifelike, and has an effect of returning to nature. Therefore, with the increasing demand of people for living environment in recent years, the usage amount of the real stone paint is also increased year by year.

at present, although many research reports and researches on environment-friendly coatings are carried out, and a large number of documents and application situations appear successively, most of the purification and environment-friendly coatings for buildings are inner wall flat coating coatings, the purification and environment-friendly sand wall coatings such as stone paint texture paints are mentioned, dust in the air easily erodes and pollutes the coatings for the outer walls of the buildings to seriously affect the appearance of the coatings, and the coatings can only be generally cleaned and then renovated, so that the building cost is greatly increased, and waste residues and waste liquids generated in the cleaning process also cause environmental pollution. At present, the market needs to provide a self-cleaning and environment-beautifying stone-like paint to meet the use requirements of people, and the self-cleaning function of buildings is realized through the erosion of rainwater.

The inventor of the application obtains a stone-like paint which is water-based, environment-friendly, good in construction performance, good in construction effect, self-cleaning and environment-beautifying, and fills the market gap by continuously screening raw materials, reasonably matching special functional auxiliaries and selecting a special process with the technical support of the existing paint industry.

Disclosure of Invention

An object of the present invention is to solve at least the above problems and to provide at least the advantages described later.

The invention also aims to provide the stone-like paint with self-cleaning and beautifying functions, which can release negative ions to beautify the environment, and the super-hydrophobic model is formed on the surface of the coating after being coated on the outer wall, so that the water repellency of the surface of the coating is increased, and the self-cleaning effect can be achieved.

the invention also aims to provide a preparation method of the stone-like paint with self-cleaning and beautifying functions, wherein the natural mineral hexacyclic stone superfine micropowder and the modified nano titanium dioxide are uniformly distributed under the action of a dispersing agent, so that the compatibility between the nano particles and the superfine micropowder is improved, a micron-nano alternate structure is constructed, the surface roughness of a coating is improved, and the water repellency is enhanced, so that the self-cleaning effect is realized.

in order to achieve the objects and other advantages of the present invention, a stone-like paint with self-cleaning and environmental-beautifying functions is provided, which comprises the following raw materials in parts by weight: 160 parts of water, 1-3 parts of cellulose, 1-3 parts of multifunctional auxiliary agent, 190 parts of silicone-acrylic emulsion 140, 1-5 parts of dispersing agent, 4-9 parts of antifreezing agent, 6-11 parts of film forming auxiliary agent, 0.5-3 parts of defoaming agent, 1-5 parts of preservative, 0.5-2 parts of thickening agent, 30-50 parts of environment beautifying material, 30-50 parts of self-cleaning functional material and 650 parts of natural colored sand 600.

Preferably, the cellulose is high potency hydroxyethyl cellulose.

the antifreezing agent is propylene glycol; the film-forming additive is any one of dodecyl alcohol ester, ethylene glycol monobutyl ether and benzyl alcohol;

The defoamer is a mineral oil based compound;

The preservative is benzisothiazolinone or carbazone;

The dispersant is a polyacrylic amine salt dispersant.

preferably, the thickener is one of nonionic polyurethane associated thickener, anionic alkali swelling thickener or hydrophobically modified associated anionic alkali swelling thickener.

Preferably, the self-cleaning functional material is modified nano titanium dioxide; the environment beautifying material is modified natural mineral hexacyclic ring stone superfine micropowder.

the invention also provides a preparation method of the stone-like paint with self-cleaning and beautifying functions, which comprises the following steps:

S1: weighing the components, adding cellulose into water under a stirring state, and stirring at room temperature until the state is not changed any more to obtain a mixture;

s2: under the stirring state, sequentially adding a multifunctional auxiliary agent, a silicone-acrylic emulsion, a dispersing agent, an antifreezing agent, a film-forming auxiliary agent, a defoaming agent, a preservative, a thickening agent, an environment beautifying material and a self-cleaning functional material into the mixture to prepare a natural stone paint base material pre-slurry;

s3: and transferring the obtained base material pre-slurry of the real stone paint into a horizontal stirring kettle, pre-stirring for 5-10min at the rotating speed of 500 plus one year of 1000rpm, reducing the stirring rotating speed to 200 plus one year of 300rpm, adding the natural colored sand, and immediately stopping stirring after uniform stirring to obtain the finished product of the real stone paint.

Preferably, the stirring conditions in S1 are: stirring at 500-; the stirring speed in S2 was 500-.

Preferably, the specific preparation method of the self-cleaning functional material in S2 is as follows: adding 5 parts by weight of gamma-ureidopropyltriethoxysilane into 50-60 parts by weight of nano titanium dioxide, mixing, adding 100 parts of water, stirring for 30-40min under the heating condition of 80 ℃, adding 45-50 parts of ethyl orthosilicate, and continuously stirring for 45-50min to obtain the self-cleaning functional material.

preferably, the specific preparation method of the material for beautifying the environment in S2 comprises the following steps: preparing natural mineral hexacyclic ring stone into superfine powder by using a superfine mill, dropwise adding a nonionic fluorocarbon surfactant into the superfine powder, stirring for 20-30min after dropwise adding is finished, heating to 80-85 ℃ and keeping for 35-40min, and filtering, washing and drying to obtain the environment beautifying material.

preferably, the ultrafine powder is 2000 meshes.

Preferably, the nonionic fluorocarbon surfactant is added according to 8% -10% of the total amount of the superfine powder.

The invention at least comprises the following beneficial effects:

the environment beautifying material is prepared by preparing superfine micropowder from natural mineral hexacyclic stone with a function of releasing negative ions, performing surface modification on the natural mineral hexacyclic stone by using a nonionic surfactant to prepare the environment beautifying material, stirring and blending the environment beautifying material with silicone-acrylate emulsion to prepare a real stone paint pre-slurry base material, adding natural colored sand, and applying the base material to an outer wall, so that the building is ensured to be attractive, the environment beautifying material also has a function of releasing negative ions, for pollutants of particulate matters such as PM2.5 in the air, the negative ions released in the air can adsorb the surrounding particulate matters, and the pollutants can be settled to the ground under the influence of gravity; for active pollutants such as bacteria and viruses, the negative ions can destroy the structure of the pollutants, so that the pollutants lose activity, and bacteria and the like can also fall to the ground; for hydrocarbons such as formaldehyde and benzene, negative ions can reduce the combination of the hydrocarbons, so that the hydrocarbons are decomposed into pollution-free carbon dioxide and water, and the generated negative ions can reduce pollutants in the environment through various ways to purify the environment.

the self-cleaning material is formed by modifying nano titanium dioxide by utilizing gamma- (methyl propenyl oxy) propyl trimethoxy silane and tetraethoxysilane, the compatibility of the self-cleaning material with natural mineral hexacyclic stone superfine powder is enhanced, the self-cleaning material and the natural mineral hexacyclic stone superfine powder are more uniformly dispersed in a silicone-acrylic emulsion under the action of a dispersing agent, the dispersibility of the self-cleaning material and the stability of the prepared real stone paint are improved, and meanwhile, the self-cleaning material and the real stone paint form a micron-nano alternative structure in the real stone paint, so that the surface roughness of the coating of the real stone paint can be improved, the surface of the formed coating conforms to a super-sulfur water model, the water repellency of the surface of the coating is enhanced, and the; in addition, the solvent of the stone-like paint is water, so that the environment is protected and pollution is avoided.

additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Detailed Description

The present invention is described in further detail below to enable those skilled in the art to practice the invention with reference to the description.

It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.

The following are used in the examples:

the cellulose is high-efficiency hydroxyethyl cellulose, and can be selected from hydroxyethyl cellulose with Japanese trade mark MH10007P 4;

The defoamer is a mineral oil based compound selected from the group consisting of a basf foamstar a10 defoamer and a DF-18 mineral oil defoamer from delfeng dongguan;

The preservative is benzisothiazolinone or kasong, and can be selected from BIT-20 preservative of Xintai new material Co., Ltd, Guangzhou city or kasong bactericide K9N of Jinsheng brother chemical engineering science Co., Ltd;

the dispersant is a polyacrylic amine salt dispersant, and any one of SG-B03 and 731A can be selected as the dispersant;

The thickener is one of nonionic polyurethane associated thickener, anionic alkali swelling thickener or hydrophobic modified associated anionic alkali swelling thickener, and can be selected from thickener HT925 of lake northern Qifei pharmaceutical chemical industry Limited, HT935 of Nantong City, or Guangzhou City, such as HS-622 of chemical industry Limited.

The specific preparation method of the self-cleaning functional material, namely the modified nano titanium dioxide, comprises the following steps: adding 5 parts by weight of gamma-ureidopropyltriethoxysilane to 60 parts by weight of nano titanium dioxide, mixing, adding 100 parts of water, stirring for 40min under the heating condition of 80 ℃, adding 50 parts of tetraethoxysilane, and continuously stirring for 45min to obtain the self-cleaning functional material.

the specific preparation method of the environment beautifying material, namely the modified natural mineral hexacyclic stone superfine powder, comprises the following steps: preparing natural mineral hexacyclic stone into superfine powder by using a superfine mill, dropwise adding a nonionic fluorocarbon surfactant YM-313 into the superfine powder, wherein the addition amount of the nonionic fluorocarbon surfactant YM-313 is 10% of the superfine powder, stirring for 30min after the dropwise adding is finished, heating to 85 ℃ and keeping for 40min, and filtering, washing and drying to obtain the environment beautifying material.