Inorganic dry powder nano paint with negative ions and formaldehyde degradation function and production process thereof

Abstract

The invention discloses inorganic dry powder nano paint with negative ions and a formaldehyde degradation function and a production process. The coating is prepared from the following raw materials in percentage by weight: 20%-30% of pure acrylic redispersible latex powder, 3%-5% of 160-mesh high-purity polyvinyl alcohol, 24%-28% of rutile titanium dioxide, 5%-8% of calcined kaolin, 5%-10% of talcum powder, 10%-15% of zeolite powder, 4%-7% of silicon dioxide, 2%-4% of high-mesh ground calcium carbonate, 0.1%-0.15% of hydroxyethyl vitamin ether and 0.05%-0.1% of hydroxy propyl cellulose ether. The formaldehyde degradation agent is prepared from the following components in percentage by weight: 0.1%-0.15% of a thickening agent, 0.2%-0.5% of citric acid, 0.2%-0.5% of inorganic iron oxide toner, 0.5%-0.1% of formaldehyde degradation photocatalyst powder and 0.005%-0.01% of negative oxygen ion ecological liquid. According to the present invention, the formaldehyde degradation photocatalyst powder can emit negative ions under illumination, the negative oxygen ion ecological liquid is matched to perform negative ion release so as to purify air, such that the environmental protection effect is provided, and the materials adopted by the inorganic dry powder nano-paint are non-toxic and harmless to the human body, and are detected by the national detection center, such that the environmental protection effect is provided; the limited quantity of seven harmful substances in the inorganic dry powder nano paint is zero.

Description

Technical Field

[0001] This invention relates to the field of architectural coatings technology, specifically to inorganic dry powder nano-coatings with negative ion and formaldehyde degradation functions, and their production process. Background Technology

[0002] The market is flooded with negative ion products, such as negative ion generators, negative ion air conditioners, and negative ion fans. However, these products only emit negative ions when the equipment is in operation, which limits their use. Therefore, this paper proposes an inorganic dry powder nano-coating with negative ion and formaldehyde-degrading functions, along with its production process, to address this issue. Summary of the Invention

[0003] The purpose of this invention is to provide an inorganic dry powder nano-coating with negative ion and formaldehyde degradation functions, as well as its production process, which solves the problem that the release of negative ions currently requires equipment and has limited application.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an inorganic dry powder nano-coating with negative ion and formaldehyde degradation functions, wherein the raw material formulation is as follows:

[0005] The composition includes: 20%-30% pure acrylic redispersible latex powder, 3%-5% 160-mesh high-purity polyethylene alcohol, 24%-28% rutile titanium dioxide, 5%-8% calcined kaolin, 5%-10% talc, 10%-15% zeolite powder, 4%-7% silica, 2%-4% high-mesh heavy calcium carbonate, 0.1%-0.15% hydroxyethyl vitamin ether, 0.05%-0.1% hydroxypropyl cellulose ether, 0.1%-0.15% thickener, 0.2%-0.5% citric acid, 0.2%-0.5% inorganic iron oxide pigment, 0.5%-0.1% formaldehyde-degrading photocatalyst powder, and 0.005%-0.01% negative ion ecological liquid.

[0006] Preferably, the rutile titanium dioxide, calcined kaolin, talc, zeolite, silica, and high-purity heavy calcium carbonate are the base materials.

[0007] Preferably, the formaldehyde-degrading photocatalyst powder is a negative ion emitting material.

[0008] Preferably, the negative oxygen ion ecological liquid is a coating material after film formation.

[0009] The production process of inorganic dry powder nano-coating with negative ion and formaldehyde degradation functions includes the following steps:

[0010] Step 1: Weigh all materials according to the material ratio;

[0011] Step 2: Grinding. The weighed pure acrylic redispersible latex powder, rutile titanium dioxide, calcined kaolin, talc powder, zeolite powder, silica, high-mesh heavy calcium carbonate, hydroxyethyl vitamin ether, hydroxypropyl cellulose ether, thickener, citric acid, inorganic iron oxide color powder and formaldehyde-degrading photocatalyst powder are added to the grinding device in sequence, ground, and then sieved.

[0012] Step 3: Mixing. Add rutile titanium dioxide, calcined kaolin, talc, zeolite, silica, and high-mesh heavy calcium carbonate to a mixing device and mix to obtain the base materials.

[0013] Add pure acrylic redispersible latex powder and 160-mesh high-purity polyethylene alcohol to the base material, and continue stirring until completely mixed;

[0014] Add hydroxyethyl vitamin ether, hydroxypropyl cellulose ether, thickener and citric acid and continue stirring to mix;

[0015] Then add the formaldehyde-degrading photocatalyst powder and mix, so that the formaldehyde-degrading photocatalyst powder is completely integrated into all materials;

[0016] Finally, inorganic iron oxide pigment was added for color adjustment to obtain inorganic dry powder nano paint.

[0017] Step 4: Packaging. Based on the weight of each package, weigh and package the fully mixed inorganic dry powder nano paint for storage or transportation to the construction site.

[0018] Preferably, in step 1, the weighing process repeatedly confirms whether the weight meets the requirements.

[0019] Preferably, in step 2, the grinding fineness of all materials should be at least less than 50 μm.

[0020] Preferably, in step 2, the sieved particles with a fineness greater than 50 μm are re-ground until the requirement is met.

[0021] Preferably, in step 3, during the mixing of all materials, water must not be added to the stirring device.

[0022] Preferably, in step 4, after the packaged inorganic dry powder nano paint is transported to the construction site, only an appropriate amount of water needs to be added according to the metering, and the paint can be applied to form a film by stirring, dispersing and filtering.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] This invention patent describes the preparation of inorganic dry powder nano-coating by adding formaldehyde-degrading photocatalytic powder to basic raw materials. After the film is formed by brushing, a negative oxygen ion ecological liquid is then brushed onto the inorganic dry powder nano-coating film. The formaldehyde-degrading photocatalytic powder can emit negative ions under light, and the negative oxygen ion ecological liquid further enhances the air purification effect by releasing negative ions, resulting in an environmentally friendly effect. Moreover, all materials used in this inorganic dry powder nano-coating are non-toxic and harmless to the human body. According to the testing by the National Testing Center, the limits for the seven harmful substances in this inorganic dry powder nano-coating are all zero. Detailed Implementation

[0025] The present invention will now be described in more detail by way of examples. These examples are merely illustrative and do not limit the scope of the present invention in any way.

[0026] In one aspect of the present invention, a technical solution is provided: an inorganic dry powder nano-paint with negative ion and formaldehyde degradation functions, wherein the raw material formulation is as follows:

[0027] The composition includes: 20%-30% pure acrylic redispersible latex powder, 3%-5% 160-mesh high-purity polyethylene alcohol, 24%-28% rutile titanium dioxide, 5%-8% calcined kaolin, 5%-10% talc, 10%-15% zeolite powder, 4%-7% silica, 2%-4% high-mesh heavy calcium carbonate, 0.1%-0.15% hydroxyethyl vitamin ether, 0.05%-0.1% hydroxypropyl cellulose ether, 0.1%-0.15% thickener, 0.2%-0.5% citric acid, 0.2%-0.5% inorganic iron oxide pigment, 0.5%-0.1% formaldehyde-degrading photocatalyst powder, and 0.005%-0.01% negative ion ecological liquid.

[0028] Pure acrylic redispersible latex powder can improve the workability, fluidity, cohesion, and bond strength of mortar, and is a new type of environmentally friendly material.

[0029] 160-mesh high-purity polyethylene alcohol can improve the brushability, adhesion, emulsification, and film properties of coatings.

[0030] Hydroxyethyl vitamin ether plays a role in inorganic dry powder nano paint by thickening, suspending, dispersing, emulsifying, binding, film forming, protecting moisture and providing protective colloids;

[0031] The addition of hydroxypropyl cellulose ether to inorganic dry powder nano paint gives it good wear resistance, coating and adhesion, improved surface tension, stability to acids and alkalis, and compatibility with metallic pigments.

[0032] The addition of citric acid can effectively improve the antioxidant properties of the inorganic dry powder nano paint after application and extend its service life.

[0033] Inorganic iron oxide pigments can be used as colorants for inorganic dry powder nano paints, and also have rust-preventive properties after application.

[0034] According to an embodiment of the present invention, the rutile titanium dioxide, calcined kaolin, talc, zeolite, silica, and high-purity heavy calcium carbonate are the base materials. According to an embodiment of the present invention, the base materials can ensure that the inorganic dry powder nano paint has sufficient brushing adsorption capacity and sufficient viscosity and consistency.

[0035] Rutile titanium dioxide serves to cover and decorate, but more importantly, it can improve the physical and chemical properties of coatings, enhance chemical stability, improve hiding power, tinting power, corrosion resistance, light resistance and weather resistance, strengthen the mechanical strength and adhesion of the coating film, prevent cracking and peeling, prevent ultraviolet rays and moisture from penetrating, and extend the service life of objects.

[0036] Calcined kaolin is mainly used as a filling skeleton. At the same time, because calcined kaolin has excellent dispersibility, stable chemical properties, and is corrosion-resistant and fire-resistant, it can be used as an additive in coating production to improve the adsorption and hiding power of coatings.

[0037] Talc can increase the hardness of coatings. Rich in calcium silicate and magnesium aluminum silicate, talc helps the coating harden more evenly, improving its quality. It also increases the coating's wear resistance; using talc in floor coatings significantly improves its abrasion resistance, making it suitable for high-traffic areas. Furthermore, talc increases the coating's gloss; in some decorative coatings, it can create a smoother, more even surface.

[0038] Zeolite powder can absorb moisture and harmful gases from the air;

[0039] Silica has thickening, thixotropic, anti-settling, and matting properties, and can improve the processability of coatings in production, storage, application, and after film curing; it can form a shielding effect on coatings to achieve the purpose of resisting ultraviolet aging and heat aging, while increasing the heat insulation of coatings.

[0040] Heavy calcium carbonate has a filling effect, smoothing and leveling, making the paint smooth, even, and increasing its whiteness.

[0041] According to an embodiment of the present invention, the formaldehyde-degrading photocatalyst powder is a negative ion emitting material. According to an embodiment of the present invention, the addition of the formaldehyde-degrading photocatalyst powder can increase the air purification effect of the inorganic dry powder nanoparticles and has a bactericidal effect on the air.

[0042] The formaldehyde-degrading photocatalyst powder exhibits a strong catalytic degradation function under ultraviolet and visible light: it can effectively degrade toxic and harmful gases in the air; it can effectively kill a variety of bacteria and decompose and render harmless the toxins released by bacteria or fungi; it also has functions such as formaldehyde removal, deodorization, stain resistance, and air purification.

[0043] According to an embodiment of the present invention, the negative oxygen ion ecological liquid is a coating material after film formation. According to an embodiment of the present invention, the negative oxygen ion ecological liquid has a similar function to the formaldehyde degradation photocatalyst powder, which can actively release negative ions to remove and kill harmful gases, substances and bacteria in the air.

[0044] The negative ion ecological liquid can actively release negative ions and combine with and precipitate bacteria, viruses, dust and other substances in the air, thereby purifying the air. Furthermore, applying the negative ion ecological liquid after applying the inorganic dry powder nano paint can promote blood circulation, enhance immunity, relieve fatigue, improve sleep quality, and promote the secretion of neurotransmitters such as dopamine in the brain, which can help relieve stress, anxiety and other negative emotions, and improve emotional stability.

[0045] Method for preparing inorganic dry powder nano-coatings with negative ion and formaldehyde degradation functions

[0046] In a second aspect, the present invention provides a method for preparing the inorganic dry powder nano-coating described above, the method comprising: first, weighing: weighing all materials according to the material ratio; then, grinding: sequentially adding the weighed pure acrylic redispersible latex powder, rutile titanium dioxide, calcined kaolin, talc, zeolite, silica, high-mesh heavy calcium carbonate, hydroxyethyl vitamin ether, hydroxypropyl cellulose ether, thickener, citric acid, inorganic iron oxide pigment, and formaldehyde-degrading photocatalyst powder to a grinding device for grinding; subsequently, mixing: mixing the rutile titanium dioxide, calcined kaolin, talc, zeolite, silica, and high-mesh heavy calcium carbonate. Calcium carbonate is added to a stirring device and stirred to obtain the base material. Pure acrylic redispersible latex powder and 160-mesh high-purity polyethylene alcohol are added to the base material and stirred until completely mixed. Hydroxyethyl vitamin ether, hydroxypropyl cellulose ether, thickener and citric acid are added and stirred to continue mixing. Then, formaldehyde-degrading photocatalyst powder is added and mixed to ensure that the formaldehyde-degrading photocatalyst powder is completely integrated into all materials. Finally, inorganic iron oxide color powder is added for color adjustment to obtain inorganic dry powder nano paint. Finally, packaging: According to the weight of each package, the completely mixed inorganic dry powder nano paint is weighed, packaged and stored or transported to the construction site.

[0047] First, measurement is performed to ensure that all materials meet the required proportions during packaging. Second, grinding is performed to ensure a finer texture after mixing, transportation, and on-site water addition and application, resulting in more uniform cross-linking between materials. Third, mixing is performed to ensure sufficient uniform distribution of all materials, preventing uneven bonding and inconsistent application results. Finally, packaging is performed to facilitate accurate water addition and mixing according to the proportions of each package during use, and to facilitate storage.

[0048] Inorganic dry powder nano-coating was prepared by adding formaldehyde-degrading photocatalytic powder to the base raw materials. After the film was formed by brushing, negative oxygen ion ecological liquid was then brushed onto the inorganic dry powder nano-coating film. The formaldehyde-degrading photocatalytic powder can emit negative ions under light, and the negative oxygen ion ecological liquid can release negative ions to purify the air, which has an environmental protection effect. Moreover, all materials used in this inorganic dry powder nano-coating are non-toxic and harmless to the human body. According to the test of the National Testing Center, the limits of the seven harmful substances in this inorganic dry powder nano-coating are all zero.

[0049] According to an embodiment of the present invention, the weighing process repeatedly confirms whether the weight meets the requirements. According to an embodiment of the present invention, the confirmed weight after weighing can avoid the problem that the expected effect cannot be achieved due to insufficient proportion during subsequent use.

[0050] According to an embodiment of the present invention, the grinding fineness of all materials is at least less than 50 μm. According to an embodiment of the present invention, the control of fineness can greatly improve the fineness of the inorganic dry powder nano paint in the later use, and can avoid the situation of insufficient adsorption and excessive roughness during the coating process.

[0051] According to an embodiment of the present invention, materials with a fineness greater than 50 μm are re-ground during the sieving process until the requirements are met. According to an embodiment of the present invention, in order to ensure the consistency of all materials, it is necessary to competitively control the fineness of all materials.

[0052] According to an embodiment of the present invention, water is strictly prohibited from being added to the stirring device during the entire material mixing process. According to an embodiment of the present invention, the addition of water will cause moisture to penetrate the material after the materials are mixed and packaged, resulting in clumping.

[0053] According to an embodiment of the present invention, after the packaged inorganic dry powder nano paint is transported to the construction site, only an appropriate amount of water needs to be added according to the metering. After stirring, dispersing and filtering, it can be applied to form a film. According to an embodiment of the present invention, after the inorganic dry powder nano paint is stirred, dispersed and filtered with water to form a film, it is also necessary to apply negative oxygen ion ecological liquid. The application of negative oxygen ion ecological liquid and the formaldehyde-degrading photocatalyst powder can maximize the amount of negative ion release.

[0054] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An inorganic dry powder nano-coating with negative ion and formaldehyde degradation functions, characterized in that: The raw material ratio is as follows: The composition includes: 20%-30% pure acrylic redispersible latex powder, 3%-5% 160-mesh high-purity polyethylene alcohol, 24%-28% rutile titanium dioxide, 5%-8% calcined kaolin, 5%-10% talc, 10%-15% zeolite powder, 4%-7% silica, 2%-4% high-mesh heavy calcium carbonate, 0.1%-0.15% hydroxyethyl vitamin ether, 0.05%-0.1% hydroxypropyl cellulose ether, 0.1%-0.15% thickener, 0.2%-0.5% citric acid, 0.2%-0.5% inorganic iron oxide pigment, 0.5%-0.1% formaldehyde-degrading photocatalyst powder, and 0.005%-0.01% negative ion ecological liquid.

2. The inorganic dry powder nano-coating with negative ion and formaldehyde degradation functions according to claim 1, characterized in that: The rutile titanium dioxide, calcined kaolin, talc, zeolite, silica, and high-purity heavy calcium carbonate are the base materials.

3. The inorganic dry powder nano-coating with negative ion and formaldehyde degradation functions according to claim 1, characterized in that: The formaldehyde-degrading photocatalyst powder is a negative ion emitting material.

4. The inorganic dry powder nano-coating with negative ion and formaldehyde degradation functions according to claim 1, characterized in that: The negative oxygen ion ecological liquid is a coating material after film formation.

5. The production process of the inorganic dry powder nano-coating with negative ion and formaldehyde degradation functions according to any one of claims 1 to 4, characterized in that: Includes the following steps: Step 1: Measurement involves weighing all materials according to their proportions. Step 2: Grinding. The weighed pure acrylic redispersible latex powder, rutile titanium dioxide, calcined kaolin, talc powder, zeolite powder, silica, high-mesh heavy calcium carbonate, hydroxyethyl vitamin ether, hydroxypropyl cellulose ether, thickener, citric acid, inorganic iron oxide color powder and formaldehyde-degrading photocatalyst powder are added to the grinding device in sequence, ground, and then sieved. Step 3: Mixing. Add rutile titanium dioxide, calcined kaolin, talc, zeolite, silica, and high-mesh heavy calcium carbonate to a mixing device and mix to obtain the base materials. Add pure acrylic redispersible latex powder and 160-mesh high-purity polyethylene alcohol to the base material, and continue stirring until completely mixed; Add hydroxyethyl vitamin ether, hydroxypropyl cellulose ether, thickener and citric acid and continue stirring to mix; Then add the formaldehyde-degrading photocatalyst powder and mix, so that the formaldehyde-degrading photocatalyst powder is completely integrated into all materials; Finally, inorganic iron oxide pigment was added for color adjustment to obtain inorganic dry powder nano paint. Step 4: Packaging. Based on the weight of each package, weigh and package the fully mixed inorganic dry powder nano paint for storage or transportation to the construction site.

6. The production process of the inorganic dry powder nano-coating with negative ion and formaldehyde degradation functions according to claim 5, characterized in that: In step 1, the weighing process repeatedly confirms whether the weight meets the requirements.

7. The production process of the inorganic dry powder nano-coating with negative ion and formaldehyde degradation functions according to claim 5, characterized in that: In step 2, the grinding fineness of all materials must be at least less than 50 μm.

8. The production process of the inorganic dry powder nano-coating with negative ion and formaldehyde degradation functions according to claim 5, characterized in that: In step 2, the sieved particles with a fineness greater than 50 μm are re-ground until the requirements are met.

9. The production process of the inorganic dry powder nano-coating with negative ion and formaldehyde degradation functions according to claim 5, characterized in that: In step 3, during the mixing of all materials, it is strictly forbidden to add water to the mixing device.

10. The production process of the inorganic dry powder nano-coating with negative ion and formaldehyde degradation functions according to claim 5, characterized in that: In step 4, the packaged inorganic dry powder nano paint is transported to the construction site. Only an appropriate amount of water needs to be added according to the metering, and the paint can be applied to form a film by stirring, dispersing, and filtering.