CN115851012A - Air self-cleaning inorganic coating with antibacterial property under visible light - Google Patents
Air self-cleaning inorganic coating with antibacterial property under visible light Download PDFInfo
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- CN115851012A CN115851012A CN202211631021.4A CN202211631021A CN115851012A CN 115851012 A CN115851012 A CN 115851012A CN 202211631021 A CN202211631021 A CN 202211631021A CN 115851012 A CN115851012 A CN 115851012A
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- 238000000576 coating method Methods 0.000 title claims abstract description 55
- 230000000844 anti-bacterial effect Effects 0.000 title claims abstract description 51
- 239000011248 coating agent Substances 0.000 title claims abstract description 48
- 238000004140 cleaning Methods 0.000 title claims abstract description 17
- 239000003242 anti bacterial agent Substances 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910010413 TiO 2 Inorganic materials 0.000 claims abstract description 12
- 238000002360 preparation method Methods 0.000 claims abstract description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 31
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 23
- 235000019353 potassium silicate Nutrition 0.000 claims description 19
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 18
- 239000004408 titanium dioxide Substances 0.000 claims description 14
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 13
- 239000002518 antifoaming agent Substances 0.000 claims description 9
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 9
- 239000002270 dispersing agent Substances 0.000 claims description 9
- 239000000839 emulsion Substances 0.000 claims description 9
- 239000000375 suspending agent Substances 0.000 claims description 9
- 239000002562 thickening agent Substances 0.000 claims description 9
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims description 8
- 239000008367 deionised water Substances 0.000 claims description 6
- 229910021641 deionized water Inorganic materials 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000003973 paint Substances 0.000 claims description 6
- 229920000642 polymer Polymers 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 5
- 239000004111 Potassium silicate Substances 0.000 claims description 4
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims description 4
- 229910052913 potassium silicate Inorganic materials 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 4
- 241000276489 Merlangius merlangus Species 0.000 claims description 3
- 239000004115 Sodium Silicate Substances 0.000 claims description 3
- YYRMJZQKEFZXMX-UHFFFAOYSA-N calcium;phosphoric acid Chemical compound [Ca+2].OP(O)(O)=O.OP(O)(O)=O YYRMJZQKEFZXMX-UHFFFAOYSA-N 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 claims description 3
- 229910052912 lithium silicate Inorganic materials 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 3
- 239000002426 superphosphate Substances 0.000 claims description 3
- 238000009736 wetting Methods 0.000 claims description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 2
- FEIQOMCWGDNMHM-UHFFFAOYSA-N 5-phenylpenta-2,4-dienoic acid Chemical compound OC(=O)C=CC=CC1=CC=CC=C1 FEIQOMCWGDNMHM-UHFFFAOYSA-N 0.000 claims 1
- 244000005700 microbiome Species 0.000 abstract description 6
- 230000001699 photocatalysis Effects 0.000 abstract description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- 239000002957 persistent organic pollutant Substances 0.000 abstract description 3
- 230000000593 degrading effect Effects 0.000 abstract description 2
- 238000007146 photocatalysis Methods 0.000 abstract description 2
- 239000013543 active substance Substances 0.000 abstract 1
- 238000004887 air purification Methods 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 230000001737 promoting effect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 8
- 239000004332 silver Substances 0.000 description 7
- 229910052709 silver Inorganic materials 0.000 description 7
- 241000894006 Bacteria Species 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 241000282414 Homo sapiens Species 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- 230000001580 bacterial effect Effects 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 241000191967 Staphylococcus aureus Species 0.000 description 3
- 210000004027 cell Anatomy 0.000 description 3
- 239000011941 photocatalyst Substances 0.000 description 3
- -1 silver ions Chemical class 0.000 description 3
- 239000002585 base Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 208000035143 Bacterial infection Diseases 0.000 description 1
- 208000035473 Communicable disease Diseases 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical compound [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 208000022362 bacterial infectious disease Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229920000592 inorganic polymer Polymers 0.000 description 1
- 229910052909 inorganic silicate Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 244000000010 microbial pathogen Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 239000013642 negative control Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000036542 oxidative stress Effects 0.000 description 1
- 244000045947 parasite Species 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
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Abstract
The invention discloses an air self-cleaning inorganic coating with antibacterial property under visible light and a preparation method thereof 2 The antibacterial agent utilizes more pores on the surface of the inorganic coating to contact air and water, releases active oxygen free radicals, inhibits the growth and reproduction of microorganisms on the surface of the coating, can generate active substances under visible light, namely sunlight, so that the coating has antibacterial performance, and can degrade organic pollutants in the environment into CO 2 And H 2 O, realizing air purification and promoting the wall surface to achieve a self-cleaning function; the inorganic antibacterial coating is added with inorganic antibacterial agent N-TiO 2 Has certain capability of degrading organic matters through photocatalysis, and can ensure that the antibacterial rate of the organic matters reaches more than 99 percentMeanwhile, organic matters on the surface of the wall body can be decomposed to a certain degree, so that the self-cleaning purpose is achieved.
Description
Technical Field
The invention belongs to the technical field of inorganic coatings and preparation processes, and particularly relates to an air self-cleaning inorganic coating with antibacterial property under visible light.
Background
The coating plays a great role in the building material field, can protect the main body material from being corroded, and can play a decorative effect. It is known that microorganisms are widely distributed in our living environment, and under the condition of proper temperature and humidity, the microorganisms can propagate on the surface of the paint in a large quantity to destroy the performance of the paint, so that the paint loses the protection and decoration effects on the main material. Furthermore, infectious diseases caused by bacteria have taken countless lives from human history. Some pathogenic microorganisms in the environment directly or indirectly contact with human bodies, thereby causing various bacterial infection diseases and seriously threatening the survival and development of human beings.
In recent years, with the improvement of living standards and the development of science and technology, the requirements of people on living conditions and living environments are higher and higher, the building coating is developed towards environment protection, and the inorganic coating inevitably becomes a trend. Meanwhile, the development of functional inorganic coatings has become an important development direction of international architectural coatings, and the antibacterial performance of the coatings is an important component.
The inorganic antibacterial coating is helpful for reducing the propagation of various microorganisms on the surface of the coating, such as bacteria, viruses, fungi, molds, parasites and the like. In addition, the inorganic antibacterial coating also has good wear resistance, scratch resistance, heat resistance and chemical resistance, and has higher adhesive force to a base material. Therefore, the inorganic antibacterial coating has wide application, can protect human beings from diseases, reduce the infection risk and improve the surface performance of the coating, can quickly react with a wall body base material, is firmly combined with a matrix through a chemical bond, has no pollution to the environment, has long service life, achieves the international advanced level of fireproof and flame retardant performance, and is a high-tech upgrading product meeting the requirement of environmental protection.
At present, most of the traditional inorganic antibacterial coatings adopt silver ion antibacterial and photocatalyst antibacterial. The silver antibacterial agent utilizes silver ions for sterilization, and the dissociated silver ions are easily reduced into simple substance silver to be gray or brown under the irradiation of sunlight or after being heated to a certain temperature, so that the appearance effect of a coating film is easily influenced; in addition, free silver ions need to enter a bacterial cell membrane to destroy the activity of bacterial cells and enzymes, so that the cells die and are lost to a certain extent; in addition, the cost of the silver-based antibacterial process is relatively high due to the precious and rare silver raw materials. The photocatalyst type inorganic antibacterial coating generates strong oxidizing substances through photocatalysis, so that microbial cell tissues lose activity, and nano particles of the photocatalyst type inorganic antibacterial coating do not participate in reaction, so that no loss exists, and the coating added with the antibacterial agent has long-acting antibacterial action. However, the photocatalytic oxide antibacterial agent has antibacterial performance only under the excitation of ultraviolet light, but the ultraviolet light which can be utilized in daily life is less, so that the wide application of the photocatalytic oxide antibacterial agent is limited.
Disclosure of Invention
In order to solve the technical problem, the invention uses N-TiO 2 The antibacterial agent is added into silicate inorganic paint, and inorganic antibacterial powder materials are uniformly distributed by utilizing an inorganic polymer skeleton structure formed by potassium silicate and silica sol; meanwhile, through the porous structure of the inorganic silicate paint, the contact area of the photocatalytic antibacterial agent and the air is ensured, and sufficient active oxygen is generated when receiving photodynamic force, wherein the active oxygen can not only act with organic pollutants in the air to degrade organic matters, but also can have an oxidative stress effect with microorganisms on the wall surface and in the air to inhibit the growth and reproduction of the microorganisms such as bacteria and the like, so that the dual functions of purifying the air and inhibiting the bacteria are achieved; in addition, the mechanism for degrading organic pollutants and resisting bacteria is not limited in the ultraviolet range, and can be carried out under visible light, namely sunlight, so that the application range of the coating is widened.
In order to achieve the technical purpose, the invention is realized by the following technical scheme: an air self-cleaning inorganic coating with antibacterial property under visible light comprises the following raw material components:
0-1% of suspending agent, 0-1% of defoaming agent, 1-2% of dispersing agent, 2-5% of thickening agent, 6-8% of titanium dioxide, 4-8% of styrene-acrylic, 15-20% of triple superphosphate, 20-30% of water glass, 10-15% of silica sol, and N-TiO 2 2 to 5 percent of antibacterial agent and 5 to 39 percent of water;
preferably, 0.5% of suspending agent, 0.5% of defoaming agent, 1% of dispersing agent, 2% of thickening agent, 7% of titanium dioxide, 4% of styrene-acrylic, 20% of coarse whiting, 24% of water glass, 10% of silica sol and N-TiO 2 2.6 percent of antibacterial agent and 28.4 percent of water;
the invention also aims to provide a preparation method of the air self-cleaning inorganic coating with antibacterial performance under visible light, which comprises the following steps:
s1: at normal temperature, adding a suspending agent and a small amount of deionized water according to a ratio by using a high-speed dispersion machine at a high rotating speed to obtain a transparent colloidal polymer;
s2: adding titanium dioxide and heavy calcium carbonate at normal temperature, grinding and dispersing for 1-1.5 h to obtain a milky colloidal polymer in which the titanium dioxide and the heavy calcium carbonate are uniformly dispersed, wherein the heavy calcium carbonate is 800-1250 meshes;
s3: at normal temperature, adding water glass, silica sol and styrene-acrylic emulsion in sequence at low rotation speed, stirring and dispersing for 1.5-2 h; wherein the dropping speed of the silica sol is controlled to be 5-8 ml/min, and the modulus of the water glass is 2.5-3.3;
s4: adding 0.5% of defoaming agent, 1% of wetting dispersant and the rest deionized water, stirring and dispersing for 0.5h to obtain white emulsion;
s5: adding N-TiO 2 The powder is uniformly dispersed in an emulsion system;
s6: adding a specified amount of thickening agent, adjusting viscosity, and dispersing for 0.5h to obtain an inorganic coating finished product.
Preferably, the titanium dioxide is rutile titanium dioxide;
preferably, the high rotation speed in S1 is 1200-1500 r/min;
preferably, the low rotation speed in the S3 is 800r/min;
preferably, the water glass is one or a mixture of potassium silicate, sodium silicate and lithium silicate.
The beneficial effects of the invention are:
the inorganic antibacterial coating can be cured within 30min at normal temperature, the antibacterial performance of the inorganic antibacterial coating reaches the grade I index of the national standard of the antibacterial coating, the antibacterial rate reaches 99%, the antibacterial durability reaches 95%, the finished coating meets the technical index requirements of interior wall coatings and coating processes, the low-temperature stability, the film-forming property and the surface drying time meet the corresponding national standards, and the scrubbing resistance, the water resistance, the alkali resistance, the temperature resistance and the ageing resistance of the inorganic antibacterial coating are not lower than the quality index of the existing architectural coating.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a graph showing control results of an antibacterial test for Staphylococcus aureus in an example of the present invention;
FIG. 2 is a report of the antibacterial detection of Staphylococcus aureus by the inorganic coating provided by the present invention;
FIG. 3 is the report of the antibacterial detection of the inorganic coating on Escherichia coli provided by the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
An air self-cleaning inorganic coating with antibacterial property under visible light comprises the following raw material components:
0-1% of suspending agent, 0-1% of defoaming agent, 1-2% of dispersing agent, 2-5% of thickening agent, 6-8% of titanium dioxide, 4-8% of styrene-acrylic, 15-20% of triple superphosphate, 20-30% of water glass, 10-15% of silica sol, and N-TiO 2 2 to 5 percent of antibacterial agent and 5 to 39 percent of water;
preferably, 0.5% of suspending agent, 0.5% of defoaming agent, 1% of dispersing agent, 2% of thickening agent, 7% of titanium dioxide, 4% of styrene-acrylic, 20% of coarse whiting, 24% of water glass, 10% of silica sol and N-TiO 2 2.6 percent of antibacterial agent and 28.4 percent of water;
the invention also aims to provide a preparation method of the air self-cleaning inorganic coating with antibacterial performance under visible light, which comprises the following steps:
s1: at normal temperature, adding a suspending agent and a small amount of deionized water according to the proportion by using a high-speed dispersion machine at a high rotating speed of 1200-1500 r/min to obtain a transparent colloidal polymer;
s2: adding rutile type titanium dioxide and heavy calcium carbonate at normal temperature, grinding and dispersing for 1-1.5 h to obtain milky colloidal polymer in which titanium dioxide and heavy calcium carbonate are uniformly dispersed, wherein the heavy calcium carbonate is 800-1250 meshes;
s3: at normal temperature, water glass, silica sol and styrene-acrylic emulsion are added in sequence at a low rotation speed of 800r/min, stirred and dispersed for 1.5 to 2 hours. Wherein the dropping rate of the silica sol is controlled to be 5-8 ml/min, and the modulus of the water glass is 2.5-3.3;
s4: then adding 0.5% of defoaming agent, 1% of wetting dispersant and the rest deionized water, stirring and dispersing for 0.5h to obtain white emulsion;
s5: adding N-TiO 2 The powder is uniformly dispersed in an emulsion system;
s6: adding a specified amount of thickening agent, adjusting viscosity, and dispersing for 0.5h to obtain an inorganic coating finished product;
preferably, the water glass is one or a mixture of potassium silicate, sodium silicate and lithium silicate.
Example 2
Staphylococcus aureus is used as an experimental strain, and the antibacterial performance of the material and bacteria in different contact time is detected by a film pasting method, wherein a negative control sample is a blank glass slide added with bacterial liquid and has no antibacterial performance. Blank control was coated without N-TiO 2 The antibacterial property of the antibacterial agent coating is that the inorganic coating has a certain antibacterial effect due to strong basicity, but the antibacterial effect is not ideal in a short time and high concentration. The experimental sample of the antibacterial coating is added with N-TiO 2 The antibacterial performance of the antibacterial coating is higher than 99% after the antibacterial coating is contacted with the bacterial liquid for 4 hours, which indicates that N-TiO is added 2 The coating of the antibacterial agent has excellent antibacterial performance.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. An air self-cleaning inorganic coating with antibacterial property under visible light is characterized by comprising the following raw material components:
0-1% of suspending agent, 0-1% of defoaming agent, 1-2% of dispersing agent, 2-5% of thickening agent, 6-8% of titanium dioxide, 4-8% of styrene-acrylic, 15-20% of triple superphosphate, 20-30% of water glass, 10-15% of silica sol, and N-TiO 2 2 to 5 percent of antibacterial agent and 5 to 39 percent of water.
2. The air self-cleaning inorganic coating with antibacterial performance under visible light of claim 1, wherein the suspending agent is 0.5%, the defoaming agent is 0.5%, the dispersing agent is 1%, the thickening agent is 2%, the titanium dioxide is 7%, the styrene-acrylic acid is 4%, the coarse whiting is 20%, the water glass is 24%, the silica sol is 10%, and the N-TiO is 10% 2 2.6 percent of antibacterial agent and 28.4 percent of water.
3. A preparation method of an air self-cleaning inorganic coating with antibacterial performance under visible light is characterized by comprising the following steps:
s1: at normal temperature, adding a suspending agent and a small amount of deionized water according to a ratio by using a high-speed dispersion machine at a high rotating speed to obtain a transparent colloidal polymer;
s2: adding titanium dioxide and heavy calcium carbonate at normal temperature, grinding and dispersing for 1-1.5 h to obtain a milky colloidal polymer in which the titanium dioxide and the heavy calcium carbonate are uniformly dispersed, wherein the heavy calcium carbonate is 800-1250 meshes;
s3: at normal temperature, adding water glass, silica sol and styrene-acrylic emulsion in sequence at low rotation speed, stirring and dispersing for 1.5-2 h; wherein the dropping speed of the silica sol is controlled to be 5-8 ml/min, and the modulus of the water glass is 2.5-3.3;
s4: adding 0.5% of defoaming agent, 1% of wetting dispersant and the rest deionized water, stirring and dispersing for 0.5h to obtain white emulsion;
s5: adding N-TiO 2 The powder is uniformly dispersed in an emulsion system;
s6: adding a specified amount of thickening agent, adjusting viscosity, and dispersing for 0.5h to obtain an inorganic coating finished product.
4. The method for preparing the air self-cleaning inorganic coating with antibacterial property under visible light according to claim 3, wherein the titanium dioxide is rutile titanium dioxide.
5. The method for preparing the air self-cleaning inorganic coating with antibacterial performance under visible light according to claim 3, wherein the high rotation speed in S1 is 1200-1500 r/min.
6. The method for preparing the air self-cleaning inorganic paint with antibacterial performance under visible light according to claim 3, wherein the low rotation speed in S3 is 800r/min.
7. The method for preparing the air self-cleaning inorganic coating with antibacterial property under visible light according to claim 3, wherein the water glass is one or a mixture of potassium silicate, sodium silicate and lithium silicate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211631021.4A CN115851012A (en) | 2022-12-19 | 2022-12-19 | Air self-cleaning inorganic coating with antibacterial property under visible light |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211631021.4A CN115851012A (en) | 2022-12-19 | 2022-12-19 | Air self-cleaning inorganic coating with antibacterial property under visible light |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06126244A (en) * | 1992-10-16 | 1994-05-10 | Nippon Mizushiyori Giken:Kk | Antibacterial coating method on tiled surface |
| CN1696228A (en) * | 2005-05-26 | 2005-11-16 | 北京科技大学 | Light catalyzed coating modified by nitrogen dopen Nano titanium dioxide and preparation method |
| CN103992733A (en) * | 2014-06-13 | 2014-08-20 | 福州大学 | Water-borne wood paint with disinfecting, bacterial-resisting, VOC (Volatile Organic Compounds)-removing and purifying functions |
| US20160222226A1 (en) * | 2013-10-11 | 2016-08-04 | Hunstman International Llc | Polyisocyanate-Based Intumescent Coating |
| CN112961514A (en) * | 2021-02-09 | 2021-06-15 | 广东嘉宝莉科技材料有限公司 | Inorganic silicate as-cast finish concrete coating and preparation method and application thereof |
| CN113698824A (en) * | 2021-08-13 | 2021-11-26 | 重庆森盟新能源开发有限公司 | Full-spectrum response type sterilization and purification coating and preparation method thereof |
| CN115011149A (en) * | 2022-06-02 | 2022-09-06 | 杭州本创科技有限公司 | Water-based inorganic ceramic coating and preparation method thereof |
-
2022
- 2022-12-19 CN CN202211631021.4A patent/CN115851012A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06126244A (en) * | 1992-10-16 | 1994-05-10 | Nippon Mizushiyori Giken:Kk | Antibacterial coating method on tiled surface |
| CN1696228A (en) * | 2005-05-26 | 2005-11-16 | 北京科技大学 | Light catalyzed coating modified by nitrogen dopen Nano titanium dioxide and preparation method |
| US20160222226A1 (en) * | 2013-10-11 | 2016-08-04 | Hunstman International Llc | Polyisocyanate-Based Intumescent Coating |
| CN103992733A (en) * | 2014-06-13 | 2014-08-20 | 福州大学 | Water-borne wood paint with disinfecting, bacterial-resisting, VOC (Volatile Organic Compounds)-removing and purifying functions |
| CN112961514A (en) * | 2021-02-09 | 2021-06-15 | 广东嘉宝莉科技材料有限公司 | Inorganic silicate as-cast finish concrete coating and preparation method and application thereof |
| CN113698824A (en) * | 2021-08-13 | 2021-11-26 | 重庆森盟新能源开发有限公司 | Full-spectrum response type sterilization and purification coating and preparation method thereof |
| CN115011149A (en) * | 2022-06-02 | 2022-09-06 | 杭州本创科技有限公司 | Water-based inorganic ceramic coating and preparation method thereof |
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