阅读说明：本技术 一种盐衣涂饰组合物及其制备方法与应用 (Salt coat coating composition and preparation method and application thereof ) 是由 王栋民 唐昕迎 白亚飞 孙睿 刘泽 于 2019-06-17 设计创作，主要内容包括：本发明涉及一种盐衣涂饰组合物,包含所述盐衣涂饰组合物的涂饰材料及其应用。所述盐衣涂饰组合物包括盐粉和水。本发明涂饰材料的主要成分是由盐粉组成,替代了传统意义上的主要成分,创新性地引入了盐这种材料,引进了盐疗对身体具有的保护健康效应,并且结合了盐系材料的防火阻燃、呼吸调湿、吸音降噪、保温隔热以及色彩柔和绿色天然环保优势,是一种粘度、硬度、强度、工作性、易打磨性、易涂抹性、抗流挂性、防水性和吸附呼吸性等性能优越的新型盐系内墙涂饰材料。(The invention relates to a salt coat finishing composition, a finishing material containing the salt coat finishing composition and application of the salt coat finishing composition. The salt coating finishing composition comprises salt powder and water. The main component of the coating material is composed of salt powder, the traditional main component is replaced, the salt material is innovatively introduced, the health protection effect of salt therapy on a body is introduced, the advantages of fire prevention, flame retardance, breathing and humidity regulation, sound absorption, noise reduction, heat preservation, heat insulation, soft, green, natural and environment-friendly color of the salt material are combined, and the coating material is a novel salt system inner wall coating material with excellent performances such as viscosity, hardness, strength, workability, easy polishing property, easy smearing property, sagging resistance, waterproofness and adsorption and respiration property.)

1. A salt coating composition comprises salt powder and a water-retaining agent.

2. The composition as claimed in claim 1, wherein the fineness of the salt powder is 200-400 meshes, preferably 250-325 meshes; the water retaining agent is selected from one or more of cellulose ether, preferably from one or more of methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose and carboxyethyl cellulose, and more preferably is hydroxyethyl cellulose; and/or the mass ratio of the salt powder to the water retention agent is (900-.

3. Composition according to claim 1 or 2, characterized in that the salt powder is an inorganic salt, preferably selected from alkali and alkaline earth metal salts, preferably selected from halides of alkali and alkaline earth metals, more preferably chlorides, most preferably sodium chloride.

4. A composition according to any one of claims 1 to 3, characterized in that the alkali and/or alkaline earth metal salt is selected from one or more of sodium carbonate, sodium chloride, potassium chloride, sodium sulphate, potassium sulphate and calcium chloride.

5. The composition according to any one of claims 1 to 4, further comprising one or more of a thickener, an air entraining agent and an inorganic pigment;

The thickening agent is selected from one or more of polyacrylamide, water-soluble starch and starch ether, preferably from one or more of modified starch ether, more preferably modified starch ether 301, and the mass ratio of the salt powder to the thickening agent is (100-2000):1, preferably (150-1000):1, more preferably (200-400): 1; and/or

The air entraining agent is selected from one or more of C6-C20 alkyl sulfate, preferably from one or more of C10-C15 alkyl sulfate, and more preferably from one or more of sodium dodecyl sulfate, potassium dodecyl sulfate and sodium tetradecyl sulfate; and/or

The inorganic pigment is selected from one or more of titanium white, chrome yellow, iron blue, cadmium red and carbon black.

6. Composition according to any one of claims 1 to 5, characterized in that the amount of salt fines ranges from 40 to 99.9%, preferably from 70 to 99.5%, and even more preferably from 95 to 99.5%, based on the total weight of the composition.

7. The composition according to any one of claims 1 to 6, characterized by comprising 50 to 99.9 percent of salt powder, 0 to 1.0 percent of water retention agent, 0 to 1.5 percent of thickening agent and 0 to 0.01 percent of air entraining agent in percentage by mass;

Preferably comprises 80 to 99.5 percent of salt powder, 0.05 to 0.9 percent of water retention agent, 0.05 to 0.8 percent of thickening agent and 0.001 to 0.01 percent of air entraining agent;

More preferably 90-99.5% salt powder, 0.1-0.4% water retention agent, 0.1-0.5% thickening agent and 0.005-0.009% air entraining agent.

8. The composition according to any one of claims 1 to 7, further comprising one or more of gray calcium and heavy calcium, preferably gray calcium, wherein the mass ratio of the salt fines to the gray calcium is (20-80):1, preferably (40-60): 1.

9. A finishing material comprising the composition according to any one of claims 1 to 8 and water, preferably in a mass ratio of (2-5):1, more preferably (3-4): 1.

10. Use of a composition according to any one of claims 1 to 8 or of a finishing material according to claim 9 in the field of building materials, in particular interior wall materials.

Technical Field

The invention relates to the field of environment-friendly green building materials, in particular to a salt coat coating composition and a preparation method thereof. In addition, the invention also relates to a coating material containing the salt coating composition and application thereof.

Background

With the continuous progress of the scientific and technological level and the national standard of people's life, the traditional building materials have many problems in the use process, especially in the production, use and recovery processes, not only a large amount of resources are lost, but also certain negative effects such as pollution are caused to the ecological environment. The putty is a coating material for the surface of a wall body. The putty powder is prepared by taking materials such as lime, cement and the like as cementing materials, taking inert substances such as heavy calcium carbonate, talcum powder, quartz sand and the like as fillers, adding a plurality of binders such as building emulsion, latex powder and the like and a small amount of additives, and the talcum powder contained in the putty powder is listed in carcinogens published by international cancer research institutes of world health organization, so that the putty powder is not environment-friendly and can cause certain risks to the health of people.

Along with the implementation of national sustainable development strategy and the increasing requirements of people on the health, environmental protection and friendliness of building materials, green building materials with health, environmental protection and friendliness are developed, which not only meet the aim of national sustainable development, but also meet the high-quality living demands of people.

Salt therapy originates from Europe of the middle century, and in fact, salt therapy dates back to the Greece period of the middle century, people find that salt mine workers work in natural salt mines for a long time and rarely suffer from respiratory diseases such as rhinitis, asthma, pneumonia and the like, and even less think that the diseases of the workers suffering from lung diseases are unconsciously cured after the salt mine works continuously. In 1843, the poland scholars f. bochkowskysia published the first work demonstrating that salt therapy has significant efficacy in respiratory diseases. In the second war, salt mines are used by people as fire shelters in germany because of the force of bombs, air currents are generated in salt caverns and salt dust is dispersed into the air, and none of the people who are warrior in these caverns suffer from respiratory diseases. By the twenty century and the fifty years, salt therapy has been developed, and eastern Europe physicists researched instruments capable of simulating the microclimate of natural salt caverns with the help of engineers. In addition, in the middle of the twentieth century, the sky in the United kingdom has been covered by the haze of the industrial revolution, and respiratory diseases caused by air pollution cannot surpass the haze, so that the health of the English people is seriously influenced. The british authoritative research department occasionally found in the investigation and research on the hazy hazard that in the winsford salt mine in the Cheshire, England, the respiratory prevalence rate of salt miners therein is almost zero, and the respiratory system and immunity are more superior. By the next 80 to 90 s of the 20 th century, with the opening of more and more salt therapy centers in europe and the navia region of sta, many european hospitals also incorporate salt therapy into the medical system, and many patients can receive salt therapy in professional health institutions, thereby enjoying the benefits that salt therapy brings to them. At present, cave salt therapy is recognized as a high-efficiency non-drug treatment method by European and American countries, and over five thousand artificial salt rooms provide continuous and effective services for different patient demands. The salt therapy can not only promote the blood circulation of human body, bring clean air and healthy breath to people, but also eliminate the diseases of respiratory system, improve the mood, relieve the mental stress and the like.

The salt is used as a building material which mainly comprises salt, and the salt can improve the indoor environment, promote the human health, kill and inhibit the environmental bacterial colony and other functions while achieving the practical function of the traditional building material, so the salt therapy is integrated with the advantages of repairing and protecting the health and the green and environmental-friendly pollution-free advantages of the salt material, and the development of the novel salt inner wall coating material with the two advantages has very important significance and value.

Disclosure of Invention

In order to solve the problems in the prior art, the salt coat coating composition provided by the invention mainly comprises salt powder and a water-retaining agent, replaces the main components of triple superphosphate, gray calcium and the like in the traditional sense, and has the excellent advantages of health, environmental friendliness, fire resistance, flame retardance, breathing humidity regulation, sound absorption, noise reduction, heat preservation, heat insulation, unique shape, soft color and the like.

In a second aspect of the invention, a finish material is provided. The coating material provided by the invention innovatively introduces the salt material, introduces the health protection effect of salt therapy on the body, and combines the advantages of green, natural and environment-friendly salt materials.

In a third aspect of the invention, the use of the salt coating finishing composition or finishing material is provided.

According to a first aspect, the present invention provides a salt coating composition comprising salt powder and water.

According to some embodiments of the invention, the fineness of the salt powder is 200-400 meshes, when the fineness of the salt powder is lower than 200 meshes, unevenness of the wall surface can be caused when the salt powder is coated on the inner wall, and when the fineness of the salt powder is higher than 400 meshes, on one hand, the water requirement is too large, the later strength is influenced, and the drying time can be increased, so that inconvenience is brought to construction; on the other hand, the cost is increased.

According to some embodiments of the present invention, the fineness of the salt fines is 250-325 mesh.

According to some embodiments of the invention, the water retaining agent is selected from one or more of cellulose ethers, preferably from one or more of methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl methyl cellulose, carboxyethyl cellulose.

The main function of the water retention agent is to maintain proper consistency and workability, avoid segregation and premature loss of water from the salt slurry, and also to improve the properties of the hardened salt slurry.

according to some embodiments of the invention, the water retaining agent is hydroxyethyl cellulose, is in the form of a yellowish powder in appearance, and has a Brookfield viscosity of a 1% aqueous solution of 2000 mPa.s to 4000 mPa.s, preferably 2601-3400 mPa.s.

According to some embodiments of the invention, the mass ratio of the salt powder to the water retention agent is (900-.

According to some embodiments of the invention, the salt powder is an inorganic salt, preferably an alkali metal and alkaline earth metal salt.

According to some embodiments of the invention, the salt fines are halides of alkali and alkaline earth metals, more preferably chlorides, most preferably sodium chloride.

According to some embodiments of the present invention, the salt powder in the salt coating composition of the present invention may be one or more of sodium carbonate, sodium chloride, potassium chloride, sodium sulfate, calcium sulfate, potassium sulfate and calcium chloride, and according to the solubility of each inorganic salt in water, a novel salt-based interior wall coating material meeting national and industrial standards may be obtained by adjusting the corresponding material mixing ratio.

According to some embodiments of the invention, the salt coating composition further comprises one or more of a thickener, an air entraining agent and an inorganic pigment.

The main function of the thickener is to increase viscosity and to increase sag resistance, which according to some embodiments of the present invention is selected from one or more of polyacrylamide, water-soluble starch and starch ether, preferably from one or more of modified starch ether.

in some embodiments of the invention, the thickener is a modified starch ether manufactured by Avebe, Netherlands, Inc. (Avebe) under the Casucol 301 designation, free of plasticizers and organic solvents, in the form of a white powder in appearance, having a pH of 9.5 to 11 (3.75% aqueous solution), and soluble in cold water.

According to some embodiments of the present invention, the mass ratio of salt fines to thickener (100-.

According to some embodiments of the present invention, the air entraining agent is selected from one or more of the group consisting of C6-C20 alkyl sulfates, preferably from one or more of the group consisting of C10-C15 alkyl sulfates, and more preferably from one or more of the group consisting of sodium lauryl sulfate, potassium lauryl sulfate, and sodium myristyl sulfate.

The air entraining agent of the invention is mainly used for introducing tiny air holes, improving workability, fluidity and improving frost resistance. In some embodiments of the invention, the air entraining agent is imported K12 (sodium lauryl sulfate) powder, white to yellowish powder, with > 95% active, pH 9.5-11 (1% active in water).

According to some embodiments of the present invention, the inorganic pigment is selected from one or more of titanium white, chrome yellow, iron blue, cadmium red and carbon black, and different inorganic pigments can be selected to be added into the salt coating composition according to the actual decoration requirement, for example, titanium white is selected, the corresponding material is white, chrome yellow is selected, and the like, and meanwhile, the coating material with richer colors can be prepared by controlling the addition amount of the two corresponding inorganic pigments.

According to some embodiments of the present invention, the salt powder is present in the salt coating composition in an amount of 40 to 99.9%, preferably 70 to 99.5%, and more preferably 95 to 99.5%, based on the total weight of the composition.

According to some embodiments of the invention, the salt coating composition comprises 50-99.9% of salt powder, 0-1.0% of water retention agent, 0-1.5% of thickening agent and 0-0.01% of air entraining agent by mass percentage.

According to some embodiments of the invention, the salt coating composition comprises, by mass, 80-99.5% of salt powder, 0.05-0.9% of water-retaining agent, 0.05-0.8% of thickening agent, and 0.001-0.01% of air-entraining agent.

According to some embodiments of the present invention, the salt coating composition comprises, by mass, 90 to 99.5% of salt powder, 0.1 to 0.4% of a water retaining agent, 0.1 to 0.5% of a thickener, and 0.005 to 0.009% of an air entraining agent.

According to some embodiments of the present invention, the salt coating composition comprises, by weight, 1100 parts of salt powder 900-.

According to some embodiments of the invention, the salt coating composition further comprises one or more of gray calcium and heavy calcium, preferably gray calcium. The ash calcium powder is prepared by calcining natural high-quality limestone with CaCO3 as main component at high temperature to obtain quicklime (CaO), selecting, partially digesting, and pulverizing with a high-speed winnowing hammer mill. The main component of the ash calcium powder is Ca (OH)2, and the ash calcium used in the invention can be replaced by calcium hydroxide according to a corresponding proportion. Coarse whiting, which is calcite powder, is a short term for ground calcium carbonate, is formed by grinding natural carbonate minerals such as calcite, marble and limestone, and is the main component of a coating material in the traditional sense. Meanwhile, in the coating industry, light calcium (light calcium carbonate) is also a main filler component, the granularity is smaller than that of heavy calcium carbonate, the oil absorption is larger than that of heavy calcium carbonate, but the price is higher than that of the heavy calcium carbonate, and the light calcium (light calcium carbonate) and the heavy calcium carbonate both have large application amount in the coating and are often used in a matching way.

According to some embodiments of the present invention, the corresponding light calcium powder may be used to partially or completely replace the heavy calcium in the salt coating composition of the present invention, depending on the actual situation.

According to some embodiments of the invention, the mass ratio of the salt fines to the ash calcium is (20-80):1, preferably (40-60): 1.

The salt coat coating composition provided by the invention replaces the traditional heavy calcium and ash calcium with salt powder as main components, introduces the health protection effect of salt therapy on human body, has the salt powder content of 95-99%, solves the problem of difficult adjustment of material state by introducing a specific water-retaining agent, and makes a brand new technical breakthrough. In addition, other additives such as starch ether, air entraining agent and the like are introduced, so that the workability, viscosity, strength, hardness, workability, sag resistance and other properties of the material are effectively adjusted and improved.

According to a second aspect, the present invention provides a coating material comprising the above salt coating composition and water.

according to some embodiments of the present invention, the mass ratio of salt coating composition to water is (2-5):1, preferably (3-4): 1.

The invention provides a salt-series interior wall coating material, which is a novel interior wall environment-friendly coating wall material taking salt powder as a main raw material. The main component of the salt material is salt, and the salt material has the following characteristics: the characteristics are as follows: the color is easy to color, the color is not designed after water spraying, mud does not flow, the hand is lightly pressed, and the effect of natural mud is achieved; and (2) the characteristics: powder, stirring and construction do not have any odor and release of any harmful substance; and (3) characteristics: the texture is fine and smooth, and the building block has tiny sand grains, so that the building block is suitable for construction on a smooth and dry indoor wall surface; and (4) the characteristics are as follows: can be absorbed when meeting water, is non-inflammable when meeting fire, and has no pungent peculiar smell. The salt-series interior wall finishing material has no pollution, is purely natural, has multiple functions, and is incomparable with traditional coatings such as emulsion paint, wallpaper and the like. The salt-series interior wall finishing material is not moved when used for decoration, and the salt-series interior wall finishing material has no taste and is purely natural in the process of constructing the salt-series interior wall finishing material, so that the salt-series interior wall finishing material is convenient to repair. The salt material is healthy and environment-friendly, has good decoration and health functionality, is a new generation indoor coating material for replacing wallpaper and latex paint, and has the key advantages of being healthy and environment-friendly, fireproof, flame-retardant, breathable, humidity-regulating, sound-absorbing, noise-reducing, heat-insulating, unique in shape, soft in color and the like.

According to a third aspect, the present invention provides the use of the salt coating finishing composition described above and of the finishing material described above in architectural decoration, in particular in interior wall finishing.

According to some embodiments of the invention, the method of applying the finishing material comprises the steps of:

1) Pre-wetting the inner wall surface to a surface layer wet state by using a water sprayer;

2) Using tools such as a scraper blade and the like to scrape and coat the fresh slurry of the novel salt fine system coating material on the inner wall, wherein the thickness of the coating material can be controlled to be 1-3mm according to requirements, and the surface shape of the material can be molded according to requirements;

3) And after natural drying, finishing the construction of the salt coating material.

Compared with the prior art, the coating material provided by the invention has the main advantages that:

1. The raw materials used by the product are basically inorganic green environment-friendly materials, have stable performance, are beneficial to health and can be stored for a long time.

2. The raw materials have low cost and wide sources, and the market is easy to popularize.

3. The main components of the interior wall coating material in the traditional sense are heavy calcium carbonate, ash calcium, additives and the like, and the interior wall coating material has the phenomena of low viscosity, easy sagging, poor environmental protection and the like. The main component of the invention is composed of salt powder, the main component in the traditional sense is partially replaced, the salt material is innovatively introduced, the health protection effect of salt therapy on the body is introduced, and the advantages of fire prevention, flame retardance, breathing and humidity regulation, sound absorption and noise reduction, heat preservation and heat insulation, soft, green, natural and environment-friendly color of the salt material are combined, so that the salt inner wall coating material is a novel salt inner wall coating material with excellent performances such as viscosity, hardness, strength, workability, easy sanding, easy smearing, sagging resistance, waterproofness, adsorption and respiration.

drawings

FIG. 1: fresh slurry diagram of salt-based coating material prepared in example 3.

FIG. 2: fresh slurry diagram of salt-based coating material prepared in example 4.

Detailed Description

The preparation method of the salt coating material comprises the following steps:

1) Starting a dry powder mixer;

2) firstly, putting salt powder and hydroxyethyl cellulose ether with the formula ratio into a dry powder mixer, and stirring for 2-3 min;

3) then adding the auxiliary agents such as starch ether, air entraining agent and the like in the formula ratio into a dry powder mixer, and continuously stirring for 2-3 min;

4) Then putting the uniformly mixed powder into a mortar stirrer, adding water with a quantity equal to half of the formula amount, starting the mortar stirrer, and stirring for 1-2 min;

5) And standing for 1min, adding the residual water into a mortar stirrer, continuously stirring for 2-4min, and discharging to obtain a mixture, namely the fresh slurry of the salt coating material.

Hereinafter, the present invention will be described with reference to examples. Table 1 below shows the composition of components of examples 1 to 20 according to the present invention, and table 2 shows the results of performance tests of examples 1 to 20 and comparative examples.

Reagent for experiment

The fineness of the salt powder for the experiment is 250-325 meshes, and the main component is sodium chloride (the content is higher than 99%).

The Brookfield viscosity of the 1% strength aqueous solution of the hydroxyethyl cellulose ether used for the test was 2601-3400mPa s.

The experimental starch ether was produced by Longhu science 301.

The air entraining agent for the experiment was K12 air entraining agent, white to yellowish powder, with an active content of > 95%, pH 9.5-11 (1% active in water).