CN115537059A - Coating additive, antirust aldehyde-removing antiviral coating and preparation method - Google Patents
Coating additive, antirust aldehyde-removing antiviral coating and preparation method Download PDFInfo
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- CN115537059A CN115537059A CN202211329705.9A CN202211329705A CN115537059A CN 115537059 A CN115537059 A CN 115537059A CN 202211329705 A CN202211329705 A CN 202211329705A CN 115537059 A CN115537059 A CN 115537059A
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- aldehyde
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- 238000000576 coating method Methods 0.000 title claims abstract description 154
- 239000011248 coating agent Substances 0.000 title claims abstract description 149
- 239000000654 additive Substances 0.000 title claims abstract description 74
- 230000000996 additive effect Effects 0.000 title claims abstract description 73
- 230000000840 anti-viral effect Effects 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title abstract description 24
- 239000003973 paint Substances 0.000 claims abstract description 33
- 239000011941 photocatalyst Substances 0.000 claims abstract description 25
- 239000003443 antiviral agent Substances 0.000 claims abstract description 21
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 50
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims description 41
- 239000004111 Potassium silicate Substances 0.000 claims description 29
- 229910052913 potassium silicate Inorganic materials 0.000 claims description 29
- 235000019353 potassium silicate Nutrition 0.000 claims description 29
- 239000000945 filler Substances 0.000 claims description 28
- 229920005989 resin Polymers 0.000 claims description 28
- 239000011347 resin Substances 0.000 claims description 28
- 239000002518 antifoaming agent Substances 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 239000002270 dispersing agent Substances 0.000 claims description 20
- 239000002562 thickening agent Substances 0.000 claims description 20
- 238000002156 mixing Methods 0.000 claims description 19
- 239000001913 cellulose Substances 0.000 claims description 18
- 229920002678 cellulose Polymers 0.000 claims description 18
- 239000000080 wetting agent Substances 0.000 claims description 18
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 16
- 150000001414 amino alcohols Chemical class 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 239000002994 raw material Substances 0.000 claims description 14
- 239000000049 pigment Substances 0.000 claims description 13
- 239000000839 emulsion Substances 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 9
- 229910052710 silicon Inorganic materials 0.000 claims description 9
- 239000010703 silicon Substances 0.000 claims description 9
- 229920002050 silicone resin Polymers 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 4
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 4
- OPKOKAMJFNKNAS-UHFFFAOYSA-N N-methylethanolamine Chemical compound CNCCO OPKOKAMJFNKNAS-UHFFFAOYSA-N 0.000 claims description 3
- 239000002904 solvent Substances 0.000 claims description 3
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 10
- 239000000853 adhesive Substances 0.000 abstract description 6
- 230000001070 adhesive effect Effects 0.000 abstract description 6
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 45
- 238000003756 stirring Methods 0.000 description 33
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 20
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 19
- 230000000694 effects Effects 0.000 description 18
- 241000700605 Viruses Species 0.000 description 12
- 238000001914 filtration Methods 0.000 description 10
- 229910052742 iron Inorganic materials 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 239000002002 slurry Substances 0.000 description 10
- 125000003277 amino group Chemical group 0.000 description 9
- 239000000843 powder Substances 0.000 description 9
- 239000004408 titanium dioxide Substances 0.000 description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 8
- 239000011259 mixed solution Substances 0.000 description 8
- 239000002585 base Substances 0.000 description 7
- 239000013530 defoamer Substances 0.000 description 7
- 238000000227 grinding Methods 0.000 description 7
- 230000002265 prevention Effects 0.000 description 7
- 230000035484 reaction time Effects 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 230000004048 modification Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- 238000005185 salting out Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 230000002147 killing effect Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 238000004659 sterilization and disinfection Methods 0.000 description 5
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 4
- 125000003172 aldehyde group Chemical group 0.000 description 4
- 239000012752 auxiliary agent Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 4
- 239000004567 concrete Substances 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 4
- 238000009776 industrial production Methods 0.000 description 4
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 4
- 238000002161 passivation Methods 0.000 description 4
- 238000004886 process control Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- -1 tile Substances 0.000 description 3
- 239000005995 Aluminium silicate Substances 0.000 description 2
- 229920005682 EO-PO block copolymer Polymers 0.000 description 2
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 2
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 235000012211 aluminium silicate Nutrition 0.000 description 2
- 230000002155 anti-virotic effect Effects 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229920001400 block copolymer Polymers 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 238000009775 high-speed stirring Methods 0.000 description 2
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical group [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 2
- 244000052769 pathogen Species 0.000 description 2
- 230000001699 photocatalysis Effects 0.000 description 2
- 238000007146 photocatalysis Methods 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 230000003449 preventive effect Effects 0.000 description 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 2
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 241000282994 Cervidae Species 0.000 description 1
- 241000276489 Merlangius merlangus Species 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000000845 anti-microbial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 208000015181 infectious disease Diseases 0.000 description 1
- 230000002458 infectious effect Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 230000014599 transmission of virus Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/14—Paints containing biocides, e.g. fungicides, insecticides or pesticides
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Plant Pathology (AREA)
- Paints Or Removers (AREA)
Abstract
The invention provides a coating additive, an antirust aldehyde-removing antiviral coating and a preparation method thereof. When the paint additive is used in paint, the paint has excellent antirust, aldehyde-eliminating and antiviral functions owing to the inorganic adhesive material and the added antiviral agent and photocatalyst. The invention also provides the antirust aldehyde-removing antiviral paint and a preparation method thereof.
Description
Technical Field
The invention belongs to the technical field of coatings, and particularly relates to a coating additive, an antirust, aldehyde-removing and antiviral coating and a preparation method thereof.
Background
At present, some viruses have strong spreading performance, can be spread by being adsorbed on the surfaces of particles and objects such as aerosol and the like, and can survive for tens of hours or even tens of hours after the viruses are attached. Secondly, the partial virus has strong variability and can continuously generate related varieties. One of the means for dealing with virus transmission is to kill infectious viruses entering the room through various ways by an intelligent and efficient air disinfection and sterilization technology.
In an environment with high risk of pathogen pollution, such as a community, an office, a business, a school, a medical treatment, a transportation junction or a vehicle and the like, a disinfection facility is arranged at an entrance, and further spread and transmission of viruses are prevented through periodic disinfection. The virus is controlled to be killed at the site, so that the harm caused by the fact that the virus is brought into living space can be effectively avoided.
However, in such a disinfection facility, on the one hand, it is required to have not only functions of decorating and protecting base materials such as walls, but also good adhesion to various base materials (metal, concrete, tile, plastic, etc.) used in facilities and spaces; on the other hand, the sterilizing effect of the sterilizing facilities on the space is usually required to be enhanced regularly, otherwise, the effect of killing the pathogens is gradually reduced along with the gradual reduction of the concentration of the disinfectant.
Therefore, there is a need to develop a new coating additive having better adhesion and rust prevention ability when used in a coating.
Disclosure of Invention
The present invention is directed to solving at least one of the above problems in the prior art. Therefore, the invention provides a coating additive which can effectively inhibit the oxidation reaction of iron and has better adhesive force and antirust capability when being used in a coating.
The invention also provides a preparation method of the coating additive.
The invention also provides an antirust, aldehyde-removing and antiviral coating.
The invention also provides a preparation method of the antirust aldehyde-removing antiviral coating.
The first aspect of the invention provides a coating additive, which comprises the following raw materials in parts by weight:
potassium silicate: 30-60 parts;
organic resin: 5-10 parts;
silane coupling agent: 4-10 parts;
inorganic silicone resin: 5-15 parts;
amino alcohol: 5 to 15 portions.
One of the technical schemes of the coating additive of the invention at least has the following beneficial effects:
the coating additive provided by the invention comprises potassium silicate, organic resin, a silane coupling agent, inorganic silicon resin and amino alcohol as raw materials, wherein the organic resin has the function of increasing the wrapping property of the resin on pigments and fillers in the coating, so that the incompatibility of color mixing can be greatly improved, the toughness of a coating is increased, and cracking is prevented. The silane coupling agent is used for coupling grafting, so that organic resin and inorganic silicon resin can be effectively grafted to the molecular structure of potassium silicate. The inorganic silicone resin has the function of improving the modulus of the potassium silicate, thereby improving the water resistance and the salting-out resistance of the potassium silicate. The function of the amino alcohol is to provide an amino group for grafting and to provide an aldehyde-removing group, so that when the coating additive is used in a coating, the coating has an aldehyde-removing effect.
The coating additive can effectively inhibit the oxidation reaction of iron, and has the effects of preventing flash rust, preventing rust return and inhibiting the generation of rust points when the coating additive is used in a coating. Meanwhile, the coating can react with rust to generate an iron silicate passivation layer, so that the coating is reinforced, and the adhesion of the coating is better. Also has natural mildew-proof effect.
When the paint additive is used in paint, the paint has good adhesion performance on various base materials such as metal, concrete, ceramic tile, plastic and the like, particularly can realize rust-free direct rust-carrying coating on metal base materials, effectively prevents the problems of flash rust, rust prevention and the like, and has good rust prevention function.
According to some embodiments of the invention, the organic resin comprises at least one of a styrene-acrylic emulsion and a silicone-acrylic emulsion.
According to some embodiments of the invention, the inorganic silicone resin comprises at least one of a basic silica sol.
According to some embodiments of the invention, the amino alcohol comprises at least one of triethanolamine, N-methylethanolamine.
According to some embodiments of the invention, the coating additive has a modulus of 3.5 to 4.5.
The modulus of the coating additive is 3.5-4.5, the effect is that the water resistance of the paint film is insufficient when the modulus is too low, salting-out is easy to generate, and the adhesive strength of the paint film is reduced when the modulus is too high.
According to some embodiments of the invention, the coating additive has a pH of 11 to 13.
The pH value of the coating additive is 11-13, so that the rust reaction of iron can be effectively inhibited, the generation of rust spots is inhibited, and flash rust and rust return of a metal substrate are prevented.
In a second aspect of the invention, there is provided a method of preparing the coating additive, comprising the steps of:
s1: mixing the potassium silicate, organic resin, part of silane coupling agent and inorganic silicon resin for reaction to obtain a composite modified potassium silicate solution;
s2: and adding the rest silane coupling agent and amino alcohol into the composite modified potassium silicate solution, and reacting to obtain the coating additive.
The invention relates to a technical scheme in a preparation method of a coating additive, which at least has the following beneficial effects:
the preparation method of the coating additive does not need complex process control and expensive equipment, is simple and easy to operate, and is easy for industrial production.
According to the preparation method of the coating additive, in the step S1, through the composite modification between inorganic and organic substances, the color mixing incompatibility of the coating additive can be greatly improved, the adaptability of potassium silicate to auxiliary agents, fillers and color paste in subsequent coatings is effectively improved, and the coating additive can be commonly used with the auxiliary agents, the fillers and the color paste when being used in the coatings. Meanwhile, the modulus of the potassium silicate can be effectively controlled, and the salting-out problem is avoided.
According to the preparation method of the coating additive, in the step S2, a considerable amount of amino groups are grafted on the molecular structure of the potassium silicate through amino modification, and when the potassium silicate is used in a coating, the potassium silicate can react with formaldehyde molecular aldehyde groups, so that the effect of quickly removing formaldehyde is achieved through chemical reaction.
According to some embodiments of the invention, the temperature of the mixing reaction in step S1 is 70 to 90 ℃.
According to some embodiments of the invention, in step S1, the mixing reaction time is 2h to 8h.
According to some embodiments of the invention, in step S1, the mixing reaction time is 6h to 8h.
According to some embodiments of the invention, in step S1, the time of the mixing reaction is 6h.
According to some embodiments of the invention, in step S2, stirring is applied at a speed of 700rpm to 900rpm.
According to some embodiments of the invention, in step S2, the reaction time is 1h to 2.5h.
The third aspect of the invention provides an antirust, aldehyde-removing and antiviral coating, which comprises the following raw materials in parts by weight:
the coating additive comprises the following components: 15-35 parts;
antiviral agents: 0.2 to 5 portions;
photocatalyst: 0.1 to 5 portions.
The invention relates to a technical scheme of antirust aldehyde-removing antiviral paint, which at least has the following beneficial effects:
in the antirust aldehyde-removing antiviral coating, the coating additive is used as an inorganic bonding material, and an antiviral agent and a photocatalyst are added, so that the coating has a good antirust aldehyde-removing antiviral function.
The antirust aldehyde-removing antiviral coating has a high pH value (> 11) of the coating additive, can effectively inhibit the oxidation reaction of iron, prevent flash rust and return rust, and can inhibit the generation of rust spots. And (4) naturally preventing mildew. Meanwhile, the iron silicate passivation layer generated by chemical reaction with the rust can be combined and reinforced, and the adhesive force is better.
According to the antirust aldehyde-removing antiviral coating, the coating additive is subjected to amino compound modification, so that the molecular structure of the coating additive has more amino groups, and the amino groups can react with aldehyde groups of formaldehyde molecules, so that the effect of quickly removing formaldehyde is achieved through chemical reaction.
According to the antirust aldehyde-removing antiviral coating, the photocatalyst is used as a catalyst to further catalyze and decompose formaldehyde under visible light, so that the decomposition efficiency is improved, and the long-acting decomposition effect is realized.
The antirust aldehyde-removing antiviral paint can achieve the effect of quickly killing various viruses attached to the wall surface by using antiviral agents.
Compared with organic emulsion, the coating additive in the antirust aldehyde-removing antiviral coating disclosed by the invention is used as an inorganic binder, so that the mildew resistance, weather resistance, heat resistance, fire-retardant property, chemical corrosion resistance and ultraviolet light stability of the coating are greatly improved, and when the coating is used for killing facilities and spaces, harmful gases such as formaldehyde in the spaces can be effectively removed, and various viruses attached to wall surfaces can be quickly killed.
In the antirust aldehyde-removing antiviral paint, the photocatalyst has the function of photocatalysis, and can decompose harmful gas for a long time under visible light.
According to some embodiments of the invention, the photocatalyst is nano-titania.
According to some embodiments of the present invention, the antirust, aldehyde-removing and antiviral coating further comprises the following raw materials in parts by weight:
cellulose: 0.1 to 0.8 portion;
dispersing agent: 0.1 to 1.5 portions;
wetting agent: 0.1 to 1 portion;
defoaming agent: 0.1 to 1 portion;
pigment and filler: 20-50 parts of a solvent;
thickening agent: 0.1 to 1 portion;
water: 20 to 40 portions.
According to some embodiments of the invention, the cellulose is hydroxyethyl cellulose.
According to some embodiments of the invention, the dispersant comprises a quaternary ammonium salt block copolymer and a polycarboxylic acid sodium salt copolymer type dispersant.
According to some embodiments of the invention, the wetting agent is an EO/PO block copolymer.
According to some embodiments of the invention, the defoamer is a mineral oil or polyether modified defoamer suitable for thick paint, elastomeric systems.
According to some embodiments of the invention, the pigment filler comprises at least one of titanium dioxide, ground calcium carbonate, sericite powder and calcined kaolin.
In the pigment and filler, the titanium dioxide is used for providing covering power of the paint. Ground calcium carbonate functions as a common filler. The sericite powder has the function of improving the water resistance and the wear resistance of the coating. The calcined kaolin functions to provide dry film hiding of the coating.
According to some embodiments of the invention, the thickener is an alkali swelling associative thickener.
The fourth aspect of the invention provides a method for preparing the antirust, aldehyde-removing and antiviral coating, which comprises the following steps: mixing the raw materials of the antirust, aldehyde-removing and antiviral coating uniformly.
The invention relates to a technical scheme of a preparation method of an antirust aldehyde-removing antiviral coating, which at least has the following beneficial effects:
the preparation method of the antirust aldehyde-removing antiviral coating does not need complex process control and expensive equipment, is simple and easy to operate, and is easy for industrial production.
According to some embodiments of the present invention, the preparation method of the antirust, aldehyde-removing and antiviral coating specifically comprises the following steps:
(1) Uniformly stirring water, cellulose, a dispersing agent, a wetting agent and a defoaming agent to obtain a mixed solution;
(2) Adding pigment and filler into the mixed solution, stirring and grinding to obtain slurry;
(3) Adding the photocatalyst, the antiviral agent, the coating additive, the thickening agent and the defoaming agent into the slurry, stirring uniformly and filtering.
According to some embodiments of the invention, in step (1): stirring water, cellulose, a dispersing agent, a wetting agent and a defoaming agent at the speed of 500-700 rpm for 5-15 min to obtain a mixed solution.
According to some embodiments of the invention, in step (2): adding the pigment and the filler into the mixed solution, stirring for 15-20 min at the speed of 1200-1500 rpm, and grinding to ensure that the fineness of the slurry reaches 20-40 mu m to obtain the slurry.
According to some embodiments of the invention, in step (3): adding photocatalyst, antiviral agent, emulsion, the coating additive, thickener and defoamer into the slurry, stirring uniformly, filtering, and filtering with a coating filter with 100 meshes.
Detailed Description
The following are specific examples of the present invention, and the technical solutions of the present invention will be further described with reference to the examples, but the present invention is not limited to the examples.
In some embodiments of the present invention, the present invention provides a coating additive comprising the following raw materials in parts by weight:
potassium silicate: 30-60 parts;
organic resin: 5-10 parts;
silane coupling agent: 4-10 parts;
inorganic silicone resin: 5-15 parts;
amino alcohol: 5 to 15 portions.
It can be understood that the coating additive of the invention comprises potassium silicate, organic resin, silane coupling agent, inorganic silicon resin and amino alcohol as raw materials for preparation, wherein the organic resin is used for increasing the wrapping property of the resin to pigments and fillers in the coating, greatly improving the color mixing incompatibility, increasing the toughness of the coating and preventing cracking. The silane coupling agent has the function of coupling grafting, and can effectively graft organic resin and inorganic silicon resin onto the molecular structure of potassium silicate. The inorganic silicone resin functions to improve the modulus of potassium silicate, thereby improving water resistance and salting-out resistance. The function of the amino alcohol is to provide an amino group for grafting and to provide an aldehyde-removing group, so that when the coating additive is used in a coating, the coating has an aldehyde-removing effect.
It will also be appreciated that the coating additives of the present invention are effective in inhibiting oxidation of iron and when used in coatings, provide flash rust resistance, rust return resistance, and rust spot formation inhibition. Meanwhile, the paint can react with rust to generate an iron silicate passivation layer, so that the effect of reinforcing the coating is achieved, and the adhesion of the coating is better. Also has natural mildew-proof effect.
Furthermore, when the coating additive is used in a coating, the coating has good adhesion performance on various substrates such as metal, concrete, ceramic tile, plastic and the like, particularly can be directly coated on the metal substrate with rust without rust, effectively prevents the problems of flash rust, rust prevention and the like, and has good rust prevention function.
In some embodiments of the present invention, the organic resin comprises at least one of a styrene-acrylic emulsion and a silicone-acrylic emulsion.
In some embodiments of the invention, the inorganic silicone resin comprises at least one of a basic silica sol.
In some embodiments of the present invention, the amino alcohol comprises at least one of triethanolamine, N-methylethanolamine.
In some embodiments of the invention, the modulus of the coating additive is 3.5 to 4.5.
The modulus of the paint additive is 3.5-4.5, the effect is that the water resistance of the paint film is insufficient when the modulus is too low, salting-out is easy to generate, and the adhesive strength of the paint film is reduced when the modulus is too high.
In some embodiments of the invention, the coating additive has a pH of 11 to 13.
The pH value of the coating additive is 11-13, so that the rust reaction of iron can be effectively inhibited, the generation of rust spots is inhibited, and flash rust and rust return of a metal substrate are prevented.
In still other embodiments of the present invention, the present invention provides a method of preparing a coating additive comprising the steps of:
s1: mixing potassium silicate, organic resin, part of silane coupling agent and inorganic silicon resin for reaction to obtain a composite modified potassium silicate solution;
s2: and adding the rest silane coupling agent and amino alcohol into the composite modified potassium silicate solution, and reacting to obtain the coating additive.
It can be understood that the preparation method of the coating additive of the invention does not need complex process control and expensive equipment, is simple and easy to operate, and is easy for industrial production.
Furthermore, the preparation method of the paint additive of the invention can greatly improve the color-mixing incompatibility of the paint additive by the composite modification between inorganic and organic matters in the step S1, effectively improve the adaptability of potassium silicate and auxiliary agents, fillers and color paste in subsequent paints, and ensure that the paint additive can be commonly used with the auxiliary agents, the fillers and the color paste when being used in the paints. Meanwhile, the modulus of the potassium silicate can be effectively controlled, and the salting-out problem is avoided.
Furthermore, in the preparation method of the coating additive, the amino group is modified in the step S2, so that a considerable number of amino groups are grafted on the molecular structure of the potassium silicate, and when the potassium silicate is used in the coating, the potassium silicate can react with aldehyde groups of formaldehyde molecules, and the effect of quickly removing formaldehyde is achieved through chemical reaction.
In some embodiments of the invention, the temperature of the mixing reaction in step S1 is 70 to 90 ℃.
In some embodiments of the present invention, in step S1, the mixing reaction time is 2h to 8h.
In some embodiments of the present invention, in step S1, the mixing reaction time is 6h to 8h.
In some embodiments of the invention, the mixing reaction time in step S1 is 6h.
In some embodiments of the invention, in step S2, stirring is applied at a speed of 700rpm to 900rpm.
In some embodiments of the present invention, in step S2, the reaction time is 1h to 2.5h.
In other embodiments of the present invention, the present invention provides an anti-rust, anti-aldehyde and anti-virus coating, which comprises the following raw materials in parts by weight:
coating additive: 15-35 parts;
antiviral agents: 0.2 to 5 portions;
photocatalyst: 0.1 to 5 portions.
It can be understood that in the antirust aldehyde-removing antiviral coating, the coating additive is adopted as an inorganic bonding material, and the antiviral agent and the photocatalyst are added, so that the coating has good antirust aldehyde-removing antiviral function.
Furthermore, the antirust aldehyde-removing antiviral coating has a high pH value (> 11) of the coating additive, can effectively inhibit oxidation reaction of iron, prevent flash rust and return rust, and can inhibit the generation of rust spots. And (4) naturally preventing mildew. Meanwhile, the paint can also generate a ferric silicate passivation layer through chemical reaction with the rust, and has better bonding and reinforcing properties and adhesive force.
Furthermore, the coating additive of the antirust aldehyde-removing antiviral coating has more amino groups on the molecular structure through amino compound modification, and the amino groups can react with aldehyde groups of formaldehyde molecules, so that the effect of quickly removing formaldehyde is achieved through chemical reaction.
It can be understood that the anti-rust aldehyde-removal antiviral coating provided by the invention has the advantages that the photocatalyst is used as a catalyst to further catalyze and decompose formaldehyde under visible light, the decomposition efficiency is improved, and the long-acting decomposition effect is realized.
In addition, the antirust aldehyde-removing antiviral paint can realize the effect of quickly killing various viruses attached to the wall surface by the antiviral agent.
Compared with organic emulsion, the coating additive in the antirust aldehyde-removing antiviral coating disclosed by the invention is used as an inorganic binder, so that the mildew resistance, weather resistance, heat resistance, fire-retardant property, chemical corrosion resistance and ultraviolet light stability of the coating are greatly improved, and when the coating is used for killing facilities and spaces, harmful gases such as formaldehyde in the spaces can be effectively removed, and various viruses attached to wall surfaces can be quickly killed.
In the antirust aldehyde-removing antiviral paint, the photocatalyst has the function of photocatalysis, and can decompose harmful gas for a long time under visible light.
In some embodiments of the present invention, the photocatalyst is nano titanium dioxide.
In some embodiments of the invention, the antirust aldehyde-removing antiviral coating further comprises the following raw materials in parts by weight:
cellulose: 0.1 to 0.8 portion;
dispersing agent: 0.1 to 1.5 portions;
wetting agent: 0.1 to 1 portion;
defoaming agent: 0.1 to 1 portion;
pigment and filler: 20-50 parts of a solvent;
thickening agent: 0.1 to 1 portion;
water: 20 to 40 portions.
In some embodiments of the invention, the cellulose is hydroxyethyl cellulose.
In some embodiments of the invention, the dispersant comprises a quaternary ammonium salt block copolymer and a polycarboxylic acid sodium salt copolymer type dispersant.
In some embodiments of the invention, the wetting agent is an EO/PO block copolymer.
In some embodiments of the invention, the defoamer is a mineral oil or polyether modified defoamer suitable for thick paint, elastomeric systems.
In some embodiments of the invention, the pigment filler comprises at least one of titanium dioxide, ground calcium carbonate, sericite powder and calcined kaolin.
Specifically, in the pigment and filler, the titanium dioxide is used for providing the covering power of the paint. Ground calcium carbonate functions as a common filler. The sericite powder has the function of improving the water resistance and the wear resistance of the coating. The calcined kaolin functions to provide dry film hiding of the coating.
In some embodiments of the invention, the thickener is an alkali swellable associative thickener.
In other embodiments of the present invention, the present invention provides a method for preparing an anti-rust, aldehyde-removing, and anti-virus coating, comprising: mixing the raw materials for preparing the antirust, aldehyde-removing and antiviral paint uniformly.
It can be understood that the preparation method of the antirust aldehyde-removing antiviral coating does not need complex process control and expensive equipment, is simple and easy to operate, and is easy for industrial production.
According to some embodiments of the present invention, the preparation method of the antirust, aldehyde-removing and antiviral coating specifically comprises the following steps:
(1) Uniformly stirring water, cellulose, a dispersing agent, a wetting agent and a defoaming agent to obtain a mixed solution;
(2) Adding the pigment and the filler into the mixed solution, stirring and grinding to obtain slurry;
(3) Adding photocatalyst, antiviral agent, coating additive, thickener and defoamer into the slurry, stirring uniformly, and filtering.
In some embodiments of the invention, in step (1): stirring water, cellulose, a dispersing agent, a wetting agent and a defoaming agent at the speed of 500-700 rpm for 5-15 min to obtain a mixed solution.
In some embodiments of the invention, in step (2): adding the pigment and the filler into the mixed solution, stirring for 15-20 min at the speed of 1200-1500 rpm, and grinding to ensure that the fineness of the slurry reaches 20-40 mu m to obtain the slurry.
In some embodiments of the invention, in step (3): adding photocatalyst, antiviral agent, emulsion, coating additive, thickener and defoamer into the slurry, stirring uniformly, filtering, and filtering with 100 mesh coating filter.
Example 1
The embodiment prepares the coating additive, and specifically comprises the following steps:
s1: mixing 45 parts of potassium silicate, 7 parts of organic resin, 5 parts of silane coupling agent and 10 parts of inorganic silicon resin according to a proportion, and reacting at 75 ℃ for 6 hours to obtain a composite modified potassium silicate solution;
s2: and adding 5 parts of silane coupling agent and 10 parts of amino alcohol into the composite modified potassium silicate solution, stirring at the stirring speed of 800rpm, and continuously reacting for 2 hours to obtain the coating additive.
Wherein:
potassium silicate is a liquid potassium silicate available from chenchen tai chemical ltd.
The organic resin is specifically ECO 502ap by basf.
The silane coupling agent is specifically Dow KH550.
The inorganic silicon resin is alkaline silica sol which is purchased from Fushan Dali sodium silicate factories.
The amino alcohol is specifically triethanolamine and is purchased from Tianjin neutralization Shengtai chemical industry.
Example 2
This example prepares an anti-rust, aldehyde-removing, anti-viral coating.
The coating comprises the following components in percentage by weight: 39% of water, 0.5% of cellulose, 0.5% of a dispersant, 0.2% of a wetting agent, 0.2% of an antifoaming agent, 42.5% of other fillers, 1% of an antiviral agent, 0.5% of a photocatalyst, 15% of the coating additive prepared in example 1, 0.4% of a thickener, and 0.2% of an antifoaming agent.
The preparation method of the coating comprises the following steps: 380kg of water is added into a stirring cylinder, the stirrer is started to stir at the rotating speed of 500r/min, 5kg of cellulose, 5kg of dispersing agent, 2kg of wetting agent and 2kg of defoaming agent are sequentially added, after stirring is carried out for 8min, the rotating speed is increased to 1200r/min, 425kg of other fillers (150 kg of titanium dioxide, 50kg of sericite powder and 225g of 1250-mesh coarse whiting respectively) are added, the mixture is stirred and ground at the rotating speed of 1200r/min for 20min at a high speed to ensure that the fineness reaches 20-40 mu m, then 10kg of antiviral agent, 5kg of photocatalyst, 150kg of modified potassium silicate, 4kg of thickening agent (diluted by 10kg of water) and 2kg of defoaming agent are added at a low speed of 500r/min, and after stirring is carried out for 15min, a filter is used for filtering and discharging, thus obtaining the antirust, aldehyde-removing and antiviral coating.
Example 3
This example prepares an anti-rust, aldehyde-removing, anti-viral coating.
The coating comprises the following components in percentage by weight: 31.5% of water, 0.5% of cellulose, 0.5% of a dispersing agent, 0.2% of a wetting agent, 0.2% of an antifoaming agent, 45% of other fillers, 0.5% of an antiviral agent, 1% of a photocatalyst, 20% of the coating additive prepared in example 1, 0.4% of a thickener and 0.2% of an antifoaming agent.
The preparation method of the coating comprises the following steps: 305kg of water is added into a stirring cylinder, the stirrer is started to stir at the rotating speed of 500r/min, 5kg of cellulose, 5kg of dispersing agent, 2kg of wetting agent and 2kg of defoaming agent are sequentially added, after stirring is carried out for 8min, the rotating speed is increased to 1200r/min, 450kg of other fillers (150 kg of titanium dioxide, 50kg of sericite powder and 250kg of 1250-mesh heavy calcium) are added, high-speed stirring and grinding are carried out at the rotating speed of 1200r/min for 20min, the fineness reaches 20-40 mu m, then 5kg of antiviral agent, 10kg of photocatalyst, 200kg of modified potassium silicate, 4kg of thickening agent (diluted by 10kg of water) and 2kg of defoaming agent are added at low speed of 500r/min, and after stirring is carried out for 15min, filtering and discharging are carried out by using a filter, so as to obtain the antirust aldehyde-removing antiviral coating.
Example 4
This example prepares an anti-rust, aldehyde-removing, anti-viral coating.
The coating comprises the following components in percentage by weight: 26% of water, 0.5% of cellulose, 0.5% of a dispersant, 0.2% of a wetting agent, 0.2% of a defoaming agent, 40% of other fillers, 4% of an antiviral agent, 3% of a photocatalyst, 25% of the coating additive prepared in example 1, 0.4% of a thickener, and 0.2% of a defoaming agent.
The preparation method of the coating comprises the following steps: adding 250kg of water into a stirring cylinder, starting a stirrer to stir at the rotating speed of 500r/min, sequentially adding 5kg of cellulose, 5kg of dispersing agent, 2kg of wetting agent and 2kg of defoaming agent, stirring for 8min, increasing the rotating speed to 1200r/min, adding 400kg of other fillers (150 kg of titanium dioxide, 50kg of sericite powder and 200kg of 1250-mesh heavy calcium), stirring and grinding at the rotating speed of 1200r/min at a high speed for 20min to ensure that the fineness reaches 20-40 mu m, then adding 40kg of antiviral agent, 30kg of photocatalyst, 250kg of modified potassium silicate, 4kg of thickening agent (diluted by 10kg of water) and 2kg of defoaming agent into the mixture at the low speed of 500r/min, stirring for 15min, filtering by using a filter, and discharging to obtain the antirust, formaldehyde-removing and antiviral coating.
Example 5
This example prepares an anti-rust, aldehyde-removing, anti-viral coating.
The coating comprises the following components in percentage by weight: 31.5% of water, 0.5% of cellulose, 0.5% of dispersing agent, 0.2% of wetting agent, 0.2% of defoaming agent, 45% of other fillers, 0.5% of antiviral agent, 1% of photocatalyst, 20% of common potassium silicate, 0.4% of thickening agent and 0.2% of defoaming agent.
The preparation method of the coating comprises the following steps: 305kg of water is added into a stirring cylinder, the stirrer is started to stir at the rotating speed of 500r/min, 5kg of cellulose, 5kg of dispersing agent, 2kg of wetting agent and 2kg of defoaming agent are sequentially added, after stirring is carried out for 8min, the rotating speed is increased to 1200r/min, 450kg of other fillers (150 kg of titanium dioxide, 50kg of sericite powder and 250kg of 1250-mesh heavy calcium) are added, high-speed stirring and grinding are carried out at the rotating speed of 1200r/min for 20min, the fineness reaches 20-40 mu m, then 5kg of antiviral agent, 10kg of photocatalyst, 200kg of unmodified potassium silicate (not subjected to compounding and amino modification steps), 4kg of thickening agent (diluted by 10kg of water) and 2kg of defoaming agent are added at low speed of 500r/min, and filtering and discharging are carried out by a filter after stirring is carried out for 15min, so that the antirust and aldehyde-removing antiviral coating is obtained.
In examples 2 to 5, the following were used:
the dispersant is specifically 5040 of Nopocladia.
The wetting agent is specifically Kenin PE100.
The cellulose is specifically HBR250 from Ashland.
The antifoaming agent is specifically basf ST2410.
The filler is specifically Shandong DoenR 2195 titanium dioxide, XL-4 sericite powder of the mineral industry of male deer and widely-available industrial GY316 heavy calcium carbonate.
The thickener is specifically Dow TT935.
The antiviral agent is AB-24 obtained from the institute of Dalian Kabushiki Kaisha of Chinese academy of sciences.
The photocatalyst is nano titanium dioxide, purchased from Baojian nano company.
The common potassium silicate in example 5 is liquid potassium silicate from the company chenchen tai, oceanic chemical limited.
The anti-flash and anti-rust conditions of the aldehyde-removing anti-viral paints of the rust preventive functions of examples 2 to 5 on the rust-coated metal sheet were observed.
The aldehyde-removing antiviral coatings of the rust preventive functions prepared in examples 2 to 5 were tested for their scrub resistance, formaldehyde purification rate, antibacterial property, and antiviral property. The results are shown in Table 1.
Wherein, the scrubbing resistance is tested according to GB/T9756-2018 synthetic resin emulsion interior wall paint, and the base materials are stainless steel plates, asbestos-free fiber cement plates, ceramic tiles and plastic plates respectively.
The saltpetering resistance alkali test is according to JG/T210 primer for inner and outer walls of buildings.
The formaldehyde purification rate test is carried out according to QB/T2761 method for determining purification effect of indoor air purification products.
The tests of the anti-mold performance/anti-mold durability performance and the anti-mold performance/anti-mold durability performance are in accordance with HG/T3950 antimicrobial coating.
Antiviral performance test according to ISO21702:2019 determination of antiviral Activity on plastics and other non-porous surfaces.
TABLE 1
As can be seen from Table 1, the coating has good adhesion performance on various base materials such as metal, concrete, ceramic tile, plastic and the like, can be directly coated with rust on the metal base material without rust, effectively prevents the problems of flash rust, rust prevention and the like, and has good rust prevention function. Meanwhile, harmful gases such as formaldehyde and the like in the space can be effectively removed, and various viruses attached to the wall surface can be quickly killed.
The present invention has been described in detail with reference to the embodiments, but the present invention is not limited to the embodiments described above, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. The coating additive is characterized by comprising the following raw materials in parts by weight:
potassium silicate: 30-60 parts;
organic resin: 5-10 parts;
silane coupling agent: 4-10 parts;
inorganic silicone resin: 5-15 parts;
amino alcohol: 5 to 15 portions.
2. The coating additive of claim 1 wherein the organic resin comprises at least one of a styrene-acrylic emulsion and a silicone-acrylic emulsion.
3. The coating additive of claim 1 wherein said inorganic silicone resin comprises a basic silica sol.
4. The coating additive of claim 1 wherein the amino alcohol comprises at least one of triethanolamine, N-methylethanolamine.
5. The coating additive according to any one of claims 1 to 4, wherein the modulus of the coating additive is 3.5 to 4.5.
6. The coating additive according to any one of claims 1 to 4, wherein the coating additive has a pH of 11 to 13.
7. A process for preparing the coating additive according to any one of claims 1 to 6, comprising the steps of:
s1: mixing the potassium silicate, organic resin, part of silane coupling agent and inorganic silicon resin for reaction to obtain a composite modified potassium silicate solution;
s2: and adding the rest silane coupling agent and amino alcohol into the composite modified potassium silicate solution, and reacting to obtain the coating additive.
8. The antirust aldehyde-removing antiviral coating is characterized by comprising the following raw materials in parts by weight:
the coating additive of any one of claims 1 to 6: 15-35 parts;
antiviral agents: 0.2 to 5 portions;
photocatalyst: 0.1 to 5 portions.
9. The antirust aldehyde-removing antiviral coating as claimed in claim 8, further comprising the following raw materials in parts by weight:
cellulose: 0.1 to 0.8 portion;
dispersing agent: 0.1 to 1.5 portions;
wetting agent: 0.1 to 1 portion;
defoaming agent: 0.1 to 1 portion;
pigment and filler: 20-50 parts of a solvent;
thickening agent: 0.1 to 1 portion;
water: 20 to 40 portions.
10. A method for preparing the rust and aldehyde-removing antiviral paint according to any one of claims 7 to 9, characterized in that the method comprises: mixing the raw materials for preparing the antirust, aldehyde-removing and antiviral paint uniformly.
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