A composition for releasing negative oxygen ions and removing aldehyde and a preparation method thereof
By preparing a composition containing silicates, nano-titanium dioxide and other raw materials, the problem of limited functionality in indoor air purification materials has been solved. This composition achieves high negative oxygen ion release, excellent formaldehyde purification and antibacterial properties, thereby improving indoor air quality.
Patent Information
- Application Number
- CN202610887179.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-18
- Publication Date
- 2026-08-25
AI Technical Summary
Existing indoor air purification materials have limited functionality, low negative ion release, poor formaldehyde purification effect, insufficient antibacterial properties, and unstable and short-lasting effects.
A composition for removing formaldehyde and releasing negative oxygen ions is prepared by using raw materials such as silicates, nano titanium dioxide, composite rare earth, zirconium oxide, diatomaceous earth, tourmaline, zinc oxide, magnesium oxide and selenium oxide through steps such as drying, mixing and pulverizing, ensuring uniform dispersion of powder and high specific surface area.
It achieves high negative oxygen ion release, excellent formaldehyde purification effect and superior antibacterial properties, which can improve indoor air quality in the long term, inhibit the growth of harmful microorganisms, and provide a healthy and comfortable indoor environment.
Smart Images
Figure CN122625035A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of decorative materials technology, specifically to a composition that removes formaldehyde and releases negative oxygen ions, and its preparation method. Background Technology
[0002] In cities, most people spend an average of 80%-93% of their time indoors each day, inhaling approximately 12 cubic meters of air daily. While the decoration industry has seen a surge in various products, the lack of strict control over the production and use of decorative materials, coupled with a lack of unified standards, often results in materials exceeding safety limits, leading to excessive levels of harmful substances such as formaldehyde and benzene in indoor air. Formaldehyde is widely distributed and prevalent in indoor environments, with a long release period, easily causing various adverse effects on human health. Short-term exposure may trigger respiratory discomfort and skin allergies, while long-term exposure to environments with excessive formaldehyde levels will exacerbate the body's burden, weaken the immune system, and pose a continuous and significant threat to health.
[0003] Existing technologies have limitations such as limited functionality, low negative ion release, poor formaldehyde purification effect, insufficient antibacterial properties, unstable performance, and short duration of action of traditional purification materials. To address these issues, we propose a composition that releases negative oxygen ions to remove formaldehyde and its preparation method. Summary of the Invention
[0004] The purpose of this invention is to provide a composition for removing formaldehyde and releasing negative oxygen ions and its preparation method, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a composition for removing formaldehyde and releasing negative oxygen ions, wherein the raw materials include, by weight: 32-42 parts of silicate, 10-12 parts of titanium dioxide, 6-8 parts of composite rare earth, 3-5 parts of zirconium oxide, 8-10 parts of diatomaceous earth, 14-16 parts of tourmaline, 4-6 parts of zinc oxide, 5-7 parts of magnesium oxide, and 2-3 parts of selenium oxide.
[0006] Furthermore, its raw materials, by weight, include: 40 parts silicate, 12 parts titanium dioxide, 6 parts composite rare earth, 3 parts zirconium oxide, 10 parts diatomite, 14 parts tourmaline, 5 parts zinc oxide, 7 parts magnesium oxide, and 3 parts selenium oxide.
[0007] Furthermore, its raw materials, by weight, include: 37 parts silicate, 12 parts titanium dioxide, 8 parts composite rare earth, 4 parts zirconium oxide, 10 parts diatomite, 15 parts tourmaline, 6 parts zinc oxide, 6 parts magnesium oxide, and 2 parts selenium oxide.
[0008] Furthermore, its raw materials, by weight, include: 39 parts silicate, 11 parts titanium dioxide, 8 parts composite rare earth, 5 parts zirconium oxide, 9 parts diatomite, 15 parts tourmaline, 5 parts zinc oxide, 6 parts magnesium oxide, and 2 parts selenium oxide.
[0009] Furthermore, its raw materials, by weight, include: 40 parts silicate, 11 parts titanium dioxide, 7 parts composite rare earth, 4 parts zirconium oxide, 9 parts diatomite, 15 parts tourmaline, 5 parts zinc oxide, 6 parts magnesium oxide, and 3 parts selenium oxide.
[0010] Furthermore, the silicate is one or a mixture of two of the highly active porous silicates S100 and S200, and the titanium dioxide is one of nano-anatase titanium dioxide P25 and nano-anatase titanium dioxide P90.
[0011] Furthermore, the composite rare earth is a lanthanum-cerium composite rare earth oxide, and the zirconium oxide is yttrium-stabilized zirconium oxide.
[0012] Furthermore, the diatomite is calcined diatomite, the tourmaline is magnesium tourmaline, and the zinc oxide is one of indirect zinc oxide ZnO-997 and nano-active zinc oxide ZnO-50.
[0013] Furthermore, the magnesium oxide is one of light active magnesium oxide MgO-L30 and heavy calcined magnesium oxide MgO-H50, and the selenium oxide is one of selenium dioxide SeO2-999 and high-purity selenium oxide SeO2-6N.
[0014] A method for preparing a composition that removes formaldehyde and releases negative oxygen ions specifically includes the following steps:
[0015] S1. Raw material pretreatment: Place silicates, titanium dioxide, composite rare earth, zirconium oxide, diatomaceous earth, tourmaline, zinc oxide, magnesium oxide, and selenium oxide into a drying oven and dry them at 105±5℃ for 2-3 hours to remove adsorbed moisture from the surface of the raw materials. After drying, take them out and cool them to room temperature.
[0016] S2. Mixing and dispersing: Add all the pretreated raw materials to a high-speed mixer, adjust the mixer speed to 1200-1500 r / min, add 0.5-1 part of dispersant, mix for 15-20 min, and the components are evenly dispersed without lumps or stratification to obtain a uniform mixed powder.
[0017] S3. Grinding and Packaging: The uniformly mixed powder from S2 is fed into an air jet mill. The grinding pressure is adjusted to 0.6-0.8 MPa. After grinding, the powder is passed through a 200-300 mesh sieve to remove coarse particles that are not completely ground, resulting in a fine powder with uniform particle size and good dispersibility. This ensures that the specific surface area of the powder meets the requirements for coating use. The finely ground powder is then sealed and packaged, and moisture-proof treatment is performed to complete the preparation of the powder product.
[0018] Compared with the prior art, the beneficial effects of the present invention are:
[0019] 1. It has the characteristics of high negative oxygen ion release, excellent formaldehyde purification effect, and excellent antibacterial properties.
[0020] 2. It can effectively improve the indoor microenvironment in the long term, has a good purification effect on common harmful pollutants in the air, and can inhibit the growth of harmful microorganisms, thus comprehensively improving indoor air quality and providing people with a healthier and more comfortable indoor environment. Attached Figure Description
[0021] Figure 1 This is a bar chart showing the test data of negative oxygen ion concentration in the performance testing methods of the compositions in Examples 1 to 4 of the present invention. Detailed Implementation
[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0023] A composition for removing formaldehyde and releasing negative oxygen ions, wherein the raw materials by weight include: 32-42 parts of silicate, 10-12 parts of titanium dioxide, 6-8 parts of composite rare earth, 3-5 parts of zirconium oxide, 8-10 parts of diatomaceous earth, 14-16 parts of tourmaline, 4-6 parts of zinc oxide, 5-7 parts of magnesium oxide, and 2-3 parts of selenium oxide.
[0024] Example 1
[0025] Its raw materials, by weight, include: 40 parts silicate, 12 parts titanium dioxide, 6 parts composite rare earth, 3 parts zirconium oxide, 10 parts diatomite, 14 parts tourmaline, 5 parts zinc oxide, 7 parts magnesium oxide, and 3 parts selenium oxide.
[0026] The silicate is a mixture of two highly active porous silicates, S100 and S200, in a 1:1 ratio. The titanium dioxide is nano-anatase titanium dioxide P25. The composite rare earth is lanthanum-cerium composite rare earth oxide. The zirconium oxide is yttrium-stabilized zirconium oxide. The diatomite is calcined diatomite. The tourmaline is magnesium tourmaline. The zinc oxide is indirect zinc oxide ZnO-997. The magnesium oxide is light active magnesium oxide MgO-L30. The selenium oxide is selenium dioxide SeO2-999.
[0027] A method for preparing a composition that removes formaldehyde and releases negative oxygen ions specifically includes the following steps:
[0028] S1. Raw material pretreatment: Place 40 parts of silicate, 12 parts of titanium dioxide, 6 parts of composite rare earth, 3 parts of zirconium oxide, 10 parts of diatomite, 14 parts of tourmaline, 5 parts of zinc oxide, 7 parts of magnesium oxide, and 3 parts of selenium oxide into a drying oven and dry at 105±5℃ for 2-3 hours to remove adsorbed moisture from the surface of the raw materials. After drying, take them out and cool them to room temperature.
[0029] S2. Mixing and dispersing: Add all the pretreated raw materials to a high-speed mixer, adjust the mixer speed to 1200-1500 r / min, add 0.5-1 part of dispersant, mix for 15-20 min, and the components are evenly dispersed without lumps or stratification to obtain a uniform mixed powder.
[0030] S3. Grinding and Packaging: The uniformly mixed powder from S2 is fed into an air jet mill. The grinding pressure is adjusted to 0.6-0.8 MPa. After grinding, the powder is passed through a 200-300 mesh sieve to remove coarse particles that are not completely ground, resulting in a fine powder with uniform particle size and good dispersibility. This ensures that the specific surface area of the powder meets the requirements for coating use. The finely ground powder is then sealed and packaged, and moisture-proof treatment is performed to complete the preparation of the powder product.
[0031] Example 2
[0032] The raw materials, by weight, include: 37 parts silicate, 12 parts titanium dioxide, 8 parts composite rare earth, 4 parts zirconium oxide, 10 parts diatomite, 15 parts tourmaline, 6 parts zinc oxide, 6 parts magnesium oxide, and 2 parts selenium oxide.
[0033] The silicate is a highly active porous silicate S100, the titanium dioxide is a type of nano-anatase titanium dioxide P90, the composite rare earth is a lanthanum-cerium composite rare earth oxide, the zirconium oxide is yttrium-stabilized zirconium oxide, the diatomite is calcined diatomite, the tourmaline is magnesium tourmaline, the zinc oxide is a type of nano-active zinc oxide ZnO-50, the magnesium oxide is a type of heavy calcined magnesium oxide MgO-H50, and the selenium oxide is a type of high-purity selenium oxide SeO2-6N.
[0034] A method for preparing a composition that removes formaldehyde and releases negative oxygen ions specifically includes the following steps:
[0035] S1. Raw material pretreatment: 37 parts of silicate, 12 parts of titanium dioxide, 8 parts of composite rare earth, 4 parts of zirconium oxide, 10 parts of diatomaceous earth, 15 parts of tourmaline, 6 parts of zinc oxide, 6 parts of magnesium oxide, and 2 parts of selenium oxide are placed in a drying oven and dried at 105±5℃ for 2-3 hours to remove adsorbed moisture from the surface of the raw materials. After drying, they are taken out and cooled to room temperature.
[0036] S2. Mixing and dispersing: Add all the pretreated raw materials to a high-speed mixer, adjust the mixer speed to 1200-1500 r / min, add 0.5-1 part of dispersant, mix for 15-20 min, and the components are evenly dispersed without lumps or stratification to obtain a uniform mixed powder.
[0037] S3. Grinding and Packaging: The uniformly mixed powder from S2 is fed into an air jet mill. The grinding pressure is adjusted to 0.6-0.8 MPa. After grinding, the powder is passed through a 200-300 mesh sieve to remove coarse particles that are not completely ground, resulting in a fine powder with uniform particle size and good dispersibility. This ensures that the specific surface area of the powder meets the requirements for coating use. The finely ground powder is then sealed and packaged, and moisture-proof treatment is performed to complete the preparation of the powder product.
[0038] Example 3
[0039] Its raw materials, by weight, include: 39 parts silicate, 11 parts titanium dioxide, 8 parts composite rare earth, 5 parts zirconium oxide, 9 parts diatomite, 15 parts tourmaline, 5 parts zinc oxide, 6 parts magnesium oxide, and 2 parts selenium oxide.
[0040] The silicate is one or a mixture of two of the highly active porous silicates S100 and S200; the titanium dioxide is one of nano-anatase titanium dioxide P25 and nano-anatase titanium dioxide P90; the composite rare earth is lanthanum-cerium composite rare earth oxide; the zirconium oxide is yttrium-stabilized zirconium oxide; the diatomite is calcined diatomite; the tourmaline is magnesium tourmaline; the zinc oxide is one of indirect zinc oxide ZnO-997 and nano-active zinc oxide ZnO-50; the magnesium oxide is one of light active magnesium oxide MgO-L30 and heavy calcined magnesium oxide MgO-H50; and the selenium oxide is one of selenium dioxide SeO2-999 and high-purity selenium oxide SeO2-6N.
[0041] A method for preparing a composition that removes formaldehyde and releases negative oxygen ions specifically includes the following steps:
[0042] S1. Raw material pretreatment: 39 parts of silicate, 11 parts of titanium dioxide, 8 parts of composite rare earth, 5 parts of zirconium oxide, 9 parts of diatomite, 15 parts of tourmaline, 5 parts of zinc oxide, 6 parts of magnesium oxide, and 2 parts of selenium oxide are placed in a drying oven and dried at 105±5℃ for 2-3 hours to remove the adsorbed moisture on the surface of the raw materials. After drying, they are taken out and cooled to room temperature.
[0043] S2. Mixing and dispersing: Add all the pretreated raw materials to a high-speed mixer, adjust the mixer speed to 1200-1500 r / min, add 0.5-1 part of dispersant, mix for 15-20 min, and the components are evenly dispersed without lumps or stratification to obtain a uniform mixed powder.
[0044] S3. Grinding and Packaging: The uniformly mixed powder from S2 is fed into an air jet mill. The grinding pressure is adjusted to 0.6-0.8 MPa. After grinding, the powder is passed through a 200-300 mesh sieve to remove coarse particles that are not completely ground, resulting in a fine powder with uniform particle size and good dispersibility. This ensures that the specific surface area of the powder meets the requirements for coating use. The finely ground powder is then sealed and packaged, and moisture-proof treatment is performed to complete the preparation of the powder product.
[0045] Example 4
[0046] The raw materials, by weight, include: 40 parts silicate, 11 parts titanium dioxide, 7 parts composite rare earth, 4 parts zirconium oxide, 9 parts diatomite, 15 parts tourmaline, 5 parts zinc oxide, 6 parts magnesium oxide, and 3 parts selenium oxide.
[0047] The silicate is one or a mixture of two of the highly active porous silicates S100 and S200; the titanium dioxide is one of nano-anatase titanium dioxide P25 and nano-anatase titanium dioxide P90; the composite rare earth is lanthanum-cerium composite rare earth oxide; the zirconium oxide is yttrium-stabilized zirconium oxide; the diatomite is calcined diatomite; the tourmaline is magnesium tourmaline; the zinc oxide is one of indirect zinc oxide ZnO-997 and nano-active zinc oxide ZnO-50; the magnesium oxide is one of light active magnesium oxide MgO-L30 and heavy calcined magnesium oxide MgO-H50; and the selenium oxide is one of selenium dioxide SeO2-999 and high-purity selenium oxide SeO2-6N.
[0048] A method for preparing a composition that removes formaldehyde and releases negative oxygen ions specifically includes the following steps:
[0049] S1. Raw material pretreatment: Place 40 parts of silicate, 11 parts of titanium dioxide, 7 parts of composite rare earth, 4 parts of zirconium oxide, 9 parts of diatomite, 15 parts of tourmaline, 5 parts of zinc oxide, 6 parts of magnesium oxide, and 3 parts of selenium oxide into a drying oven and dry at 105±5℃ for 2-3 hours to remove adsorbed moisture from the surface of the raw materials. After drying, take them out and cool them to room temperature.
[0050] S2. Mixing and dispersing: Add all the pretreated raw materials to a high-speed mixer, adjust the mixer speed to 1200-1500 r / min, add 0.5-1 part of dispersant, mix for 15-20 min, and the components are evenly dispersed without lumps or stratification to obtain a uniform mixed powder.
[0051] S3. Grinding and Packaging: The uniformly mixed powder from S2 is fed into an air jet mill. The grinding pressure is adjusted to 0.6-0.8 MPa. After grinding, the powder is passed through a 200-300 mesh sieve to remove coarse particles that are not completely ground, resulting in a fine powder with uniform particle size and good dispersibility. This ensures that the specific surface area of the powder meets the requirements for coating use. The finely ground powder is then sealed and packaged, and moisture-proof treatment is performed to complete the preparation of the powder product.
[0052] Table 1 lists the names and proportions of the raw materials in the composition.
[0053] Table 2 shows the projected performance test data for Examples 1-4.
[0054] Examples 1-4: Composition Performance Testing Methods
[0055] 1. Sample preparation: Take the powder of the composition obtained in Examples 1 to 4 respectively, mix and stir evenly at a mass ratio of powder:water = 1:0.8 to 1.2 to make a uniform slurry; coat it onto a standard test plate and let it dry naturally at room temperature for 24 hours to form a uniform coating for testing.
[0056] 2. Negative oxygen ion concentration test: Using an air ion meter, the coating samples of each embodiment were tested in a closed environment (about 1m³); the amount of negative oxygen ions released after stabilization (ions / cm³) was recorded, and the average value was taken for each group of tests.
[0057] 3. Antibacterial performance test; Antibacterial performance test was conducted in accordance with GB / T21866, and Escherichia coli and Staphylococcus aureus were selected as test strains; The antibacterial rate of each example sample against the two strains was tested and calculated.
[0058] 4. Formaldehyde purification performance test; formaldehyde purification test was conducted in an environmental test chamber in accordance with the relevant methods of GB / T27651; the formaldehyde removal rate of each sample in each embodiment was measured and recorded.
[0059] 5. Observation of powder dispersibility: Take a small amount of powder from each example, add it to water, stir and observe the dispersion state, and evaluate: dispersion uniformity, whether it agglomerates, and the speed of sedimentation.
[0060] As shown in Table 2, the compositions obtained in Examples 1-4 of this invention all have a negative oxygen ion release of ≥1900 ions / cm³, a 24-hour formaldehyde purification rate in the range of 86%-89%, and an antibacterial rate of ≥99.1% against Escherichia coli and Staphylococcus aureus. Therefore, the formaldehyde-removing and negative oxygen ion-releasing compositions of this invention possess characteristics such as high negative oxygen ion release, excellent formaldehyde purification effect, and superior antibacterial properties. They can effectively improve the indoor microenvironment in the long term, have a good purification effect on common harmful pollutants in the air, and inhibit the growth of harmful microorganisms, comprehensively improving indoor air quality and providing people with a healthier and more comfortable indoor environment.
[0061] 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. A composition for removing formaldehyde and releasing negative oxygen ions, characterized in that, The raw materials, by weight, include: 32-42 parts silicate, 10-12 parts titanium dioxide, 6-8 parts composite rare earth, 3-5 parts zirconium oxide, 8-10 parts diatomite, 14-16 parts tourmaline, 4-6 parts zinc oxide, 5-7 parts magnesium oxide, and 2-3 parts selenium oxide.
2. The composition for removing formaldehyde and releasing negative oxygen ions according to claim 1, characterized in that, The raw materials, by weight, include: 40 parts silicate, 12 parts titanium dioxide, 6 parts composite rare earth, 3 parts zirconium oxide, 10 parts diatomite, 14 parts tourmaline, 5 parts zinc oxide, 7 parts magnesium oxide, and 3 parts selenium oxide.
3. The composition for removing formaldehyde and releasing negative oxygen ions according to claim 1, characterized in that, The raw materials, by weight, include: 37 parts silicate, 12 parts titanium dioxide, 8 parts composite rare earth, 4 parts zirconium oxide, 10 parts diatomite, 15 parts tourmaline, 6 parts zinc oxide, 6 parts magnesium oxide, and 2 parts selenium oxide.
4. The composition for removing formaldehyde and releasing negative oxygen ions according to claim 1, characterized in that, The raw materials, by weight, include: 39 parts silicate, 11 parts titanium dioxide, 8 parts composite rare earth, 5 parts zirconium oxide, 9 parts diatomite, 15 parts tourmaline, 5 parts zinc oxide, 6 parts magnesium oxide, and 2 parts selenium oxide.
5. The composition for removing formaldehyde and releasing negative oxygen ions according to claim 1, characterized in that, The raw materials, by weight, include: 40 parts silicate, 11 parts titanium dioxide, 7 parts composite rare earth, 4 parts zirconium oxide, 9 parts diatomite, 15 parts tourmaline, 5 parts zinc oxide, 6 parts magnesium oxide, and 3 parts selenium oxide.
6. The composition for removing formaldehyde and releasing negative oxygen ions according to claims 1-5, characterized in that: The silicate is one or a mixture of two of the highly active porous silicates S100 and S200, and the titanium dioxide is one of nano-anatase titanium dioxide P25 and nano-anatase titanium dioxide P90.
7. The composition for removing formaldehyde and releasing negative oxygen ions according to claims 1-5, characterized in that: The composite rare earth is a lanthanum-cerium composite rare earth oxide, and the zirconium oxide is yttrium-stabilized zirconium oxide.
8. The composition for removing formaldehyde and releasing negative oxygen ions according to claims 1-5, characterized in that: The diatomite is calcined diatomite, the tourmaline is magnesium tourmaline, and the zinc oxide is either indirect zinc oxide ZnO-997 or nano-active zinc oxide ZnO-50.
9. A composition for removing formaldehyde and releasing negative oxygen ions according to claims 1-5, characterized in that: The magnesium oxide is one of light active magnesium oxide MgO-L30 and heavy calcined magnesium oxide MgO-H50, and the selenium oxide is one of selenium dioxide SeO2-999 and high-purity selenium oxide SeO2-6N.
10. A method for preparing a composition for removing formaldehyde and releasing negative oxygen ions according to any one of claims 1-5, characterized in that, Specifically, the steps include the following: S1. Raw material pretreatment: Place silicates, titanium dioxide, composite rare earth, zirconium oxide, diatomaceous earth, tourmaline, zinc oxide, magnesium oxide, and selenium oxide into a drying oven and dry them at 105±5℃ for 2-3 hours to remove adsorbed moisture from the surface of the raw materials. After drying, take them out and cool them to room temperature. S2, Mixed dispersion; Add all the pretreated raw materials to a high-speed mixer, adjust the mixer speed to 1200-1500 r / min, add 0.5-1 part of dispersant, mix for 15-20 min, and the components are evenly dispersed without lumps or stratification to obtain a uniform mixed powder. S3, Grinding and Packaging; The uniformly mixed powder in S2 is fed into an air jet mill, and the grinding pressure is adjusted to 0.6-0.8 MPa. After grinding, it is passed through a 200-300 mesh sieve to remove coarse particles that are not completely ground, so as to obtain a fine powder with uniform particle size and good dispersibility, ensuring that the specific surface area of the powder meets the requirements of the coating. The fine powder is then sealed and packaged, and moisture-proof treatment is performed to complete the preparation of the powder product.