阅读说明：本技术 一种无机功能涂料 (Inorganic functional coating ) 是由 刘涛 李亚娟 鞠晓 段炎红 李园枫 郑亚林 任亚楠 孙伟丽 王�华 王包轲 路明 于 2020-06-09 设计创作，主要内容包括：本发明公开了一种无机功能涂料,其组成及其重量份数如下：白水泥15～36份,灰钙粉20～45份,重钙粉23～60份,滑石粉8～16份,偏高岭土5～16份,偏高岭土复合物2～12份,硅藻土复合物4～14份,硅藻土3～12份,纤维混合物1～3.5份,助剂1～5.5份。偏高岭土复合物包括偏高岭土、矿粉和负氧离子粉,硅藻土复合物包括硅藻土和电气石,纤维混合物包括木质素纤维和羟丙基甲纤维素,负氧离子粉包括电气石、六环石、稀土氧化物、独居石、微晶石母粉中的任意两种及以上。本发明能释放负氧离子,吸附分解甲醛和VOC,沉降PM2.5,去除异味,净化空气,使室内释放负离子的浓度达到1000ions/cm<Sup>3</Sup>以上,达到非常清新的空气质量,满足人体健康生活所需的环境。(The invention discloses an inorganic functional coating, which comprises the following components in parts by weight: 15-36 parts of white cement, 20-45 parts of ash calcium powder, 23-60 parts of heavy calcium powder, 8-16 parts of talcum powder, 5-16 parts of metakaolin, 2-12 parts of metakaolin compound, 4-14 parts of diatomite compound, 3-12 parts of diatomite, 1-3.5 parts of fiber mixture and 1-5.5 parts of auxiliary agent. The metakaolin compound comprises metakaolin, mineral powder and negative oxygen ion powder, the diatomite compound comprises diatomite and tourmaline, the fiber mixture comprises lignin fiber and hydroxypropyl methylcellulose, and the negative oxygen ion powder comprises any two or more of tourmaline, hexacyclic ring stone, rare earth oxide, monazite and microlite mother powder. The invention can release negative oxygen ions, adsorb and decompose formaldehyde and VOC, settling PM2.5, removing peculiar smell, purifying air, and enabling the concentration of negative ions released indoors to reach 1000ions/cm 3 Therefore, the fresh air quality is achieved, and the environment required by healthy life of human bodies is met.)

1. The inorganic functional coating is characterized by comprising the following components in parts by weight: 15-36 parts of white cement, 20-45 parts of ash calcium powder, 23-60 parts of heavy calcium powder, 8-16 parts of talcum powder, 5-16 parts of metakaolin, 2-12 parts of metakaolin compound, 4-14 parts of diatomite compound, 3-12 parts of diatomite, 1-3.5 parts of fiber mixture and 1-5.5 parts of auxiliary agent.

2. The inorganic functional paint according to claim 1, wherein the metakaolin complex comprises metakaolin, mineral powder and negative oxygen ion powder, and the preparation method comprises: mixing metakaolin, mineral powder and sodium hydroxide according to the weight ratio of 1: (1-3): (0.1-0.2) mixing, grinding for 20-60 min, taking out, adding water, washing and drying to obtain a metakaolin compound precursor, grinding the metakaolin compound precursor and the negative oxygen ion powder according to the weight ratio of 1 (0.01-0.03) for 30-80 min, and sieving with a 2000-4000-mesh sieve to obtain the metakaolin compound.

3. The inorganic functional coating of claim 1, wherein: the diatomite composite comprises diatomite and tourmaline, and the preparation method comprises the following steps: firstly, the diatomite is subjected to heat preservation for 20-40 min at a high temperature of 300-400 ℃ in a furnace, then the heat preservation is carried out for 15-35 min at a temperature of 550-700 ℃, the diatomite substrate is obtained through crushing and drying treatment after cooling, and the diatomite substrate and tourmaline powder are mixed according to the weight ratio of 1: (0.01-0.05) putting the mixture into an alkali solution, and reacting at the temperature of 25-60 ℃ and the liquid-solid ratio of (2-4): 1, performing ultrasonic treatment for 20-40 min, washing, filtering, drying at 75-110 ℃ for 6-10 h, taking out, grinding, heating to 300 ℃ at a speed of 2-5 ℃/min in a high-temperature furnace, preserving heat at 300 ℃ for 1-1.5 h, heating to 500-600 ℃ at a speed of 3-6 ℃/min, preserving heat at 500-600 ℃ for 2-3 h, cooling to room temperature at a speed of 2-5 ℃/min, and grinding through a sieve of 1000-3000 meshes to obtain the diatomite composite.

4. The inorganic functional coating of claim 1, wherein: the fiber mixture comprises lignin fibers and hydroxypropyl methylcellulose, wherein the weight ratio of the lignin fibers to the hydroxypropyl methylcellulose is (0.1-0.2): 1.

5. The inorganic functional coating of claim 1, wherein: the mesh number of the sierozem powder is more than 1500 meshes, the mesh number of the heavy calcium powder is more than 2500 meshes, the mesh number of the talcum powder is more than 2000 meshes, the mesh number of the metakaolin is more than 4000 meshes, and the mesh number of the diatomite is more than 4000 meshes.

6. The inorganic functional coating of claim 1, wherein: the auxiliary agent is two or more of sodium hexametaphosphate, bone glue powder, gelatin powder and shaddock peel cellulose.

7. The inorganic functional coating of claim 6, wherein: the preparation method of the shaddock peel cellulose comprises the following steps: cleaning fresh shaddock peel, removing peel, drying for 2-6 h at 60-100 ℃, crushing, soaking in an alkaline solution for 4-12 h, performing ultrasonic treatment for 30-60min at 20-60 ℃ under 200W, filtering, drying, grinding, and sieving with a 1000-mesh sieve to obtain the shaddock peel cellulose.

8. The inorganic functional coating of claim 1, wherein: the coating also comprises 0.02-0.3 part of inorganic pigment.

9. The inorganic functional coating of claim 1, wherein: the coating also comprises 0.02-0.2 part of negative oxygen ion powder, and the mesh number of the negative oxygen ion powder is more than 1250 meshes.

10. The inorganic functional coating according to claim 2 or 8, characterized in that: the negative oxygen ion powder comprises two or more of tourmaline, hexacyclic ring stone, rare earth oxide, monazite and microlite mother powder.

Technical Field

The invention relates to the technical field of coatings, in particular to an inorganic functional coating.

Background

In the seventies and eighties of the last century, due to the constraint of social and economic conditions and the factors of the thought depreciation of people at that time, the wall surface is only required to be whitened, and lime slurry and water-resistant putty are used, but the wall surface is not strong in adhesive force and is easy to crack and fall off. In the nineties, as the latex paint age starts to rise due to rich colors and smooth surfaces, a plurality of latex paints appear, but the latex paints contain harmful substances such as Volatile Organic Compounds (VOC), formaldehyde and the like, so that the latex paints not only pollute the environment, but also influence the human health. The wallpaper and the wall cloth are harmless and environment-friendly, but need to be pasted by glue, the glue is a chemical product, the taste is great, the wallpaper and the wall cloth are easy to be affected with damp, and the service life is relatively short. Diatom ooze is a new generation and is the first functional coating. The diatom ooze can adsorb indoor formaldehyde, breathe and regulate humidity, has a self-cleaning function and is long in service life; but the adsorption capacity of the formaldehyde adsorption material is gradually weakened after the formaldehyde adsorption material is saturated, the formaldehyde adsorption material disappears for a long time, and even secondary air pollution is caused after the formaldehyde adsorption material is saturated.

Along with the improvement of living standard, the environmental protection consciousness of people is stronger and stronger, and the inorganic coating is increasingly pretty as a novel healthy environment-friendly material in the coating industry. The inorganic coating not only has multiple functions of purifying air, humidifying breath, removing peculiar smell and the like, but also has longer service life, is a perfect combination of strength and color value, not only has the advantages of diatom ooze, but also solves the problem that the capability of the diatom ooze for absorbing formaldehyde is weakened, can continuously release negative oxygen ions, absorbs and decomposes formaldehyde, can purify air for a long time, and has very important significance for the research and development of the inorganic coating.

Disclosure of Invention

Hair brushThe technical problem to be solved is as follows: overcomes the defects of the prior coating technology, provides an inorganic functional coating, not only can release negative oxygen ions, decompose toxic and harmful substances in the air such as formaldehyde, VOC and the like, settle PM2.5, remove peculiar smell and achieve the aim of purifying the air, but also can ensure that the concentration of the negative oxygen ions released indoors reaches 1000ions/cm³Therefore, the indoor air quality is very fresh, the air conditioner not only can prevent human diseases, but also can meet the environment required by human healthy life.

The technical scheme adopted by the invention for solving the technical problem is as follows:

an inorganic functional coating comprises the following components in parts by weight: 15-36 parts of white cement, 20-45 parts of ash calcium powder, 23-60 parts of heavy calcium powder, 8-16 parts of talcum powder, 5-16 parts of metakaolin, 2-12 parts of metakaolin compound, 4-14 parts of diatomite compound, 3-12 parts of diatomite, 1-3.5 parts of fiber mixture and 1-5.5 parts of auxiliary agent.

Preferably, the metakaolin compound comprises metakaolin, mineral powder and negative oxygen ion powder, and the preparation method comprises the following steps: mixing metakaolin, mineral powder and sodium hydroxide according to the weight ratio of 1: (1-3): (0.1-0.2) mixing, grinding for 20-60 min, taking out, adding water, washing and drying to obtain a metakaolin compound precursor, grinding the metakaolin compound precursor and the negative oxygen ion powder according to the weight ratio of 1 (0.01-0.03) for 30-80 min, and sieving with a 2000-4000-mesh sieve to obtain the metakaolin compound.

Preferably, the diatomite composite comprises diatomite and tourmaline, and the preparation method comprises the following steps: firstly, the diatomite is subjected to heat preservation for 20-40 min at a high temperature of 300-400 ℃ in a furnace, then the heat preservation is carried out for 15-35 min at a temperature of 550-700 ℃, the diatomite substrate is obtained through crushing and drying treatment after cooling, and the diatomite substrate and tourmaline powder are mixed according to the weight ratio of 1: (0.01-0.05) putting the mixture into an alkali solution, and reacting at the temperature of 25-60 ℃ and the liquid-solid ratio of (2-4): 1, performing ultrasonic treatment for 20-40 min, washing, filtering, drying at 75-110 ℃ for 6-10 h, taking out, grinding, heating to 300 ℃ at a speed of 2-5 ℃/min in a high-temperature furnace, preserving heat at 300 ℃ for 1-1.5 h, heating to 500-600 ℃ at a speed of 3-6 ℃/min, preserving heat at 500-600 ℃ for 2-3 h, cooling to room temperature at a speed of 2-5 ℃/min, and grinding through a sieve of 1000-3000 meshes to obtain the diatomite composite.

Preferably, the fiber mixture comprises lignin fibers and hydroxypropyl methylcellulose, and the weight ratio of the lignin fibers to the hydroxypropyl methylcellulose is (0.1-0.2): 1.

Preferably, the mesh number of the ash calcium powder is more than 1500 meshes, the mesh number of the heavy calcium powder is more than 2500 meshes, the mesh number of the talcum powder is more than 2000 meshes, the mesh number of the metakaolin is more than 4000 meshes, and the mesh number of the diatomite is more than 4000 meshes.

Preferably, the auxiliary agent is two or more of sodium hexametaphosphate, bone glue powder, gelatin powder and shaddock peel cellulose.

Preferably, the coating further comprises 0.02-0.3 part of inorganic pigment.

Preferably, the coating also comprises 0.02-0.2 part of negative oxygen ion powder, and the mesh number of the negative oxygen ion powder is more than 1250 meshes.

Preferably, the negative oxygen ion powder comprises two or more of tourmaline, hexacyclic stone, rare earth oxide, monazite and microlite mother powder.

The use method of the inorganic functional coating comprises the following steps:

respectively uniformly mixing the metakaolin compound and the diatomite, the metakaolin and the diatomite compound in the coating, then grinding and mixing the mixture for 1-4 hours, adding the white cement, the ash calcium powder, the coarse whiting powder, the talcum powder, the fiber mixture, the negative oxygen ion powder and other components after grinding and mixing the mixture uniformly, grinding and mixing the mixture for 30-60 minutes again, and fully and uniformly stirring the mixture in a stirrer; the paint after being stirred uniformly is stirred uniformly with water according to a proper proportion and can be used, the house can be immediately used after being coated, the house can also be coated when one house stays in another house, the normal life of people is not influenced in the coating process, the house is coated while being held, the decoration time can be obviously shortened, and the trouble that other houses are not used when the house is renovated and coated is reduced; meanwhile, different construction processes can be adopted according to different requirements, and the method can also be used for the process construction of intaglio engraving, anodic engraving and the like, so that the beautiful and textured decorative effect is realized, the wall has infinitely variable three-dimensional textures, the three-dimensional sense is strong, and the unique space visual angle can be displayed. The coating continuously releases negative oxygen ions, and can effectively eliminate irritant gases such as formaldehyde, benzene, ammonia and the like volatilized from decoration materials used in the indoor decoration process, and peculiar smells harmful to human bodies such as leftovers, acid and odor, cigarettes and the like in daily life, thereby achieving the effects of purifying air and killing bacteria and providing a required living environment for the healthy bodies of the human bodies; meanwhile, the negative oxygen ions have great help for keeping the human body energetic and improving the living environment of the human body.

The invention has the following beneficial effects:

1. the inorganic functional coating has a good bonding effect with a wall surface, and the inorganic functional coating cannot generate the conditions of foaming, cracking, fading, mold breeding, falling and the like after being coated on the surface of the wall body; metakaolin in the coating is a thermodynamic metastable amorphous silicon aluminum compound, has strong volcanic ash activity due to four-coordination or five-coordination Al with reactivity, can react with calcium hydroxide which is a main component in ash calcium powder in the presence of water to generate a hydration product with certain structural strength, so that the material obtains hydraulicity, simultaneously reduces volume shrinkage and improves mechanical properties; the diatomite sparse and porous material is similar to sponge in characteristics, so that the coating has the function of storing moisture, when the indoor humidity is too high, the coating can absorb the moisture in the air and store the moisture in the gaps, and when the indoor humidity is too low, the moisture stored in the previous gaps can be released, so that the dry environment in autumn and winter in the northern area and the wet environment in the southern area can be relieved; the coating releases negative oxygen ions, can well decompose toxic and harmful substances such as formaldehyde, VOC and the like adsorbed in the diatomite, realizes adsorption and decomposition at the same time, adsorbs and decomposes again, continuously removes the harmful substances such as formaldehyde and the like, and achieves the effect of removing harmful gases for a long time.

2. The inorganic functional coating can release negative oxygen ions, decompose toxic and harmful substances in air such as formaldehyde, VOC and the like, settle PM2.5, remove peculiar smell and achieve the aim of purifying air, and can also enable the concentration of the negative ions released indoors to reach 1000ions/cm³Therefore, the indoor air quality is very fresh, and the indoor environment required by healthy life of human bodies is met.

3. In the inorganic functional coating, a three-dimensional network space polymer with a basic structure of-Si-O-Al-O-is generated in a metakaolin compound, the coagulation time of the metakaolin compound is greatly shortened by doping mineral powder, the mineral powder contains a large amount of Ca, and in a strong alkaline system, OH in the system^-Penetrate the slag surface and enter the cavity inside the vitreous body. The calcium-rich phase dissolves rapidly and leads to the disintegration of the slag glass; because the Ca-O bond has smaller energy than the Si-O bond and is easier to break, the calcium-rich phase reaction is more violent and quicker, the vitreous body in the mineral powder structure is destroyed, and the dissolved Ca²⁺Ions diffuse rapidly into the system, Ca²⁺Ion and active Si0₄ ^4-The reaction is carried out, a large amount of low-alkalinity C-S-H gel is generated in a short time and filled in gaps among particles, and the coagulation and hardening of the coating are aggravated; meanwhile, the negative oxygen ion powder is uniformly dispersed in the metakaolin compound, the negative oxygen ion powder can continuously release negative oxygen ions, the negative oxygen ions can well decompose toxic and harmful substances in the air, such as formaldehyde, VOC (volatile organic compounds) and the like, and finally CO is generated₂And H₂O, and can also remove peculiar smell.

4. The diatomite in the diatomite composite is calcined in a high-temperature furnace at different temperature sections, which is not only beneficial to removing impurities, but also increases the pores of the diatomite, and amorphous SiO is treated by alkali solution₂The generation amount of the tourmaline is increased, the tourmaline is uniformly dispersed on the surface of the diatomite porous structure, and the tourmaline has a permanent micro electric field, so that the moisture adsorbed by the diatomite is ionized into H by the tourmaline⁺And OH^-，OH^-The product reacts with nearby air micromolecules at a very high speed to generate negative oxygen ions which can well decompose toxic and harmful substances such as formaldehyde, VOC and the like adsorbed by the diatomite and finally generate CO₂And H₂O; the adsorption, decomposition and re-adsorption and re-decomposition are realized, and harmful substances such as formaldehyde and the like are continuously removed, so that the problem of secondary pollution caused by diatomite is solved; and the geopolymer structure formed by the diatomite composite, the metakaolin composite and other components of the coating is more compact and has higher strength, and the geopolymer is a green and environment-friendly cementing material and has a spatial three-dimensional network structure which connects a silicon-oxygen tetrahedron and an aluminum-oxygen tetrahedron by means of bridge oxygen, so that the coating is compact and has increased strength.

Detailed Description

The following further describes the embodiments of the present invention. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.