CN114702845A - Interior wall inorganic coating prepared from organic-inorganic composite emulsion and preparation method thereof - Google Patents
Interior wall inorganic coating prepared from organic-inorganic composite emulsion and preparation method thereof Download PDFInfo
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- CN114702845A CN114702845A CN202210404173.4A CN202210404173A CN114702845A CN 114702845 A CN114702845 A CN 114702845A CN 202210404173 A CN202210404173 A CN 202210404173A CN 114702845 A CN114702845 A CN 114702845A
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- 239000000839 emulsion Substances 0.000 title claims abstract description 69
- 239000002131 composite material Substances 0.000 title claims abstract description 52
- 238000002360 preparation method Methods 0.000 title abstract description 18
- 238000000576 coating method Methods 0.000 title description 46
- 239000011248 coating agent Substances 0.000 title description 40
- 238000004945 emulsification Methods 0.000 title description 2
- 239000003973 paint Substances 0.000 claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 26
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 26
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 26
- 230000000844 anti-bacterial effect Effects 0.000 claims abstract description 23
- 239000002562 thickening agent Substances 0.000 claims abstract description 23
- 239000002270 dispersing agent Substances 0.000 claims abstract description 22
- 239000012767 functional filler Substances 0.000 claims abstract description 22
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 22
- 239000003899 bactericide agent Substances 0.000 claims abstract description 20
- 239000000080 wetting agent Substances 0.000 claims abstract description 19
- 239000004111 Potassium silicate Substances 0.000 claims abstract description 9
- 239000013530 defoamer Substances 0.000 claims abstract description 9
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 9
- 229910052913 potassium silicate Inorganic materials 0.000 claims abstract description 9
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims description 87
- 239000011259 mixed solution Substances 0.000 claims description 75
- 238000003756 stirring Methods 0.000 claims description 53
- 239000000463 material Substances 0.000 claims description 45
- 239000002518 antifoaming agent Substances 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 29
- 239000000843 powder Substances 0.000 claims description 28
- 239000000203 mixture Substances 0.000 claims description 20
- 150000002500 ions Chemical class 0.000 claims description 17
- 239000008367 deionised water Substances 0.000 claims description 12
- 229910021641 deionized water Inorganic materials 0.000 claims description 12
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 239000000243 solution Substances 0.000 claims description 9
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 8
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 8
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Inorganic materials [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 8
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 8
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 7
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 4
- 229910021645 metal ion Inorganic materials 0.000 claims description 4
- 239000010456 wollastonite Substances 0.000 claims description 4
- 229910052882 wollastonite Inorganic materials 0.000 claims description 4
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims description 3
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 claims description 3
- 125000001931 aliphatic group Chemical group 0.000 claims description 3
- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical compound CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 claims description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical class O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 3
- DMSMPAJRVJJAGA-UHFFFAOYSA-N benzo[d]isothiazol-3-one Chemical group C1=CC=C2C(=O)NSC2=C1 DMSMPAJRVJJAGA-UHFFFAOYSA-N 0.000 claims description 3
- 229910001424 calcium ion Inorganic materials 0.000 claims description 3
- 238000013329 compounding Methods 0.000 claims description 3
- 239000003651 drinking water Substances 0.000 claims description 3
- 235000020188 drinking water Nutrition 0.000 claims description 3
- 229910001425 magnesium ion Inorganic materials 0.000 claims description 3
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 3
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 3
- 229920005614 potassium polyacrylate Polymers 0.000 claims description 3
- 239000008213 purified water Substances 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 6
- 238000002485 combustion reaction Methods 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 5
- 230000003115 biocidal effect Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 49
- 239000002994 raw material Substances 0.000 description 35
- 239000006185 dispersion Substances 0.000 description 34
- 230000008569 process Effects 0.000 description 23
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 239000002002 slurry Substances 0.000 description 9
- 239000012752 auxiliary agent Substances 0.000 description 7
- 238000003860 storage Methods 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 238000009472 formulation Methods 0.000 description 5
- 238000004806 packaging method and process Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000000843 anti-fungal effect Effects 0.000 description 2
- 238000010009 beating Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- 235000010446 mineral oil Nutrition 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003002 pH adjusting agent Substances 0.000 description 2
- -1 preferably Chemical compound 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- VIZORQUEIQEFRT-UHFFFAOYSA-N Diethyl adipate Chemical group CCOC(=O)CCCCC(=O)OCC VIZORQUEIQEFRT-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 229940121375 antifungal agent Drugs 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011258 core-shell material Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 description 1
- 229910052912 lithium silicate Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000004017 vitrification Methods 0.000 description 1
Images
Classifications
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- 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
- C09D1/02—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates
- C09D1/04—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates with organic additives
-
- 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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant 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
- 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
- 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 discloses an inorganic paint for interior walls prepared from organic-inorganic composite emulsion and a preparation method thereof, wherein the paint comprises the following components in percentage by weight: 18-37% of water, 0.2-1.0% of powdery thickener, 0.1-0.3% of bactericide, 0.4-0.8% of dispersant, 0.1-0.4% of wetting agent, 0.2-0.7% of defoamer, 0.1-0.3% of pH value regulator, 5-20% of titanium dioxide, 3-10% of kaolin, 22.4-35% of functional filler and 10-35% of organic-inorganic composite emulsion. The invention does not contain VOC and harmful substances specified in the GB 18582-2020 standard, has the characteristics of non-combustion, self-respiration, antibiosis and mould proofing, has good stability and is convenient to store at normal temperature; the quality is easy to control, and a large amount of time is not needed to be spent on the test of the compatibility and the compatibility of the potassium silicate and the organic emulsion, thereby saving time and labor.
Description
Technical Field
The invention relates to the technical field of coatings, in particular to an inorganic coating for an inner wall prepared from an organic-inorganic composite emulsion and a preparation method thereof.
Background
In the field of coatings, compared with the existing commonly adopted aqueous organic coatings, the aqueous inorganic coating is applied to important places with special requirements such as subway tunnels, schools, hospitals and basements due to the properties of environmental protection, non-combustion, self-respiration, antibiosis and mildew prevention, and has higher effects of fire prevention, mildew prevention, ventilation and the like.
Most of the existing inorganic paint is made up by using potassium silicate, lithium silicate, silica sol or a mixture of one of them and organic emulsion as adhesive material, and adding proper quantity of pigment and filler and water-base paint adjuvant. However, the formulation has the disadvantages that the inorganic adhesive material has high reactivity and is sensitive to most coating raw materials, and when the inorganic adhesive material is mixed with the coating raw materials for production, the inorganic adhesive material is very easy to react with components in the coating raw materials to be gelatinized, so that the coating is deteriorated and ineffective, the difficulty in controlling the quality stability of the product is increased, and the popularization and the application of the product are not easy.
Disclosure of Invention
The invention aims to provide an inorganic coating for an inner wall prepared from an organic-inorganic composite emulsion and a preparation method thereof, and aims to solve the technical problems that the inorganic coating in the prior art is poor in storage stability and difficult to control quality.
In order to solve the technical problems, the invention specifically provides the following technical scheme:
the invention provides an inorganic paint for interior walls prepared from organic-inorganic composite emulsion and a preparation method thereof, wherein the paint comprises the following components in percentage by weight: 18-37% of water, 0.2-1.0% of powdery thickener, 0.1-0.3% of bactericide, 0.4-0.8% of dispersant, 0.1-0.4% of wetting agent, 0.2-0.7% of defoamer, 0.1-0.3% of pH value regulator, 5-20% of titanium dioxide, 3-10% of kaolin, 22.4-35% of functional filler and 10-35% of organic-inorganic composite emulsion.
As a preferred embodiment of the present invention, the water is at least one selected from drinking water containing no divalent metal ions, purified water, or deionized water.
As a preferable aspect of the present invention, the powdery thickener contains, in parts by weight: 2 parts of hydroxyethyl cellulose and 1 part of modified bentonite.
As a preferable embodiment of the present invention, the bactericide is benzisothiazolinone;
wherein the dispersant is potassium polyacrylate.
The wetting agent is aliphatic polyoxyethylene ether.
The pH regulator is at least one of AMP-95, KOH and NaOH.
As a preferred scheme of the invention, the titanium dioxide is rutile type;
wherein the kaolin is calcined kaolin, and the fineness of the kaolin is more than 1250 meshes.
As a preferable scheme of the invention, the functional filler is a divalent ion powder material containing no or very low content of free calcium ions, magnesium ions and the like;
wherein the divalent ion powder material is prepared from calcium carbonate, wollastonite powder, barium sulfate and talcum powder according to the weight ratio of 5: 2: 1: 2, mixing;
the mesh number of the divalent ion powder material is 800 meshes-1000 meshes.
In a preferred embodiment of the present invention, the organic-inorganic composite emulsion is potassium silicate, 1% hydroxyethyl cellulose solution and special emulsion, and the weight ratio of the organic-inorganic composite emulsion is 8.5: 0.5: 1 proportion of the compounded mixture;
wherein the compounding at least satisfies the following conditions: the stirring rate is 300-500 rpm.
The invention also provides a preparation method of the inorganic paint for the inner wall prepared from the organic-inorganic composite emulsion, which comprises the following steps:
s100, carrying out first mixing on water and a bactericide to prepare a first mixed solution;
s200, carrying out second mixing on the powdery thickening agent and the first mixed solution to obtain a second mixed solution;
s300, carrying out third mixing on the dispersing agent, the defoaming agent and the second mixed solution to obtain a third mixed solution;
s400, carrying out fourth mixing on the pH regulator and the third mixed solution to prepare a fourth mixed solution;
s500, performing fifth mixing on the defoaming agent and the fourth mixed solution to prepare a fifth mixed solution;
s600, carrying out sixth mixing on titanium dioxide, kaolin, functional filler and the fifth mixed solution to prepare a sixth mixed solution;
s700, carrying out seventh mixing on the organic-inorganic composite emulsion, the defoaming agent and the sixth mixed solution to prepare the inorganic paint for the inner wall;
wherein the weight ratio of the defoaming agent in the step S300 to the defoaming agent in the step S700 is 1: 1.
As a preferable aspect of the present invention, the first mixing satisfies at least the following condition: the stirring speed is 500-800 r/min, and the mixing time is 2-3 min;
the second mixing satisfies at least the following conditions: the stirring speed is 500-800 r/min, and the mixing time is 3-5 min;
the third mix satisfies at least the following condition: the stirring speed is 500-800 r/min, and the mixing time is 2-3 min;
the fourth blend satisfies at least the following conditions: the stirring speed is 500-800 r/min, and the mixing time is 1-2 min;
the fifth blend satisfies at least the following conditions: the stirring speed is 500-800 r/min, and the mixing time is 2-3 min;
the sixth blend satisfies at least the following conditions: the stirring speed is 1300-1450 revolutions/minute, and the mixing time is 20-30 minutes;
the seventh blend satisfies at least the following conditions: the stirring rate is 80-90 rpm and the mixing time is 10 minutes.
As a preferable aspect of the present invention, the sixth mixing satisfies at least the following condition: the fineness of the sixth mixed solution is less than 50 um.
Compared with the prior art, the invention has the following beneficial effects:
1) the organic-inorganic composite emulsion adopted by the invention has stable and high chemical performance, can effectively replace the conventional inorganic emulsion on the market, is not easy to react with other raw materials in the coating, and has high storage stability;
2) the inorganic coating for the inner wall has the characteristics of non-combustibility, self-respiration, antibiosis and mould proofing, and has good stability;
3) the manufacturing process of the inorganic coating for the inner wall is fine, the feeding sequence, time and rotating speed are controlled during production, and the quality of the coating is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
FIG. 1 is a process flow of the preparation method of the inorganic paint for interior walls made of organic-inorganic composite emulsion according to the present invention;
FIG. 2 is a process diagram for preparing an inorganic paint for interior walls, which is prepared from the organic-inorganic composite emulsion provided by the invention.
The reference numerals in the drawings denote the following, respectively:
1-high speed dispersion kettle; 2-low speed paint mixing kettle; 3-powder conveying pipeline; 4-a water delivery line; 5-a liquid auxiliary agent raw material conveying pipeline in the high-speed dispersion process; 6-conveying the water slurry to a conveying pipeline; 7-paint mixing procedure liquid raw material conveying pipeline; 8-organic-inorganic composite emulsion conveying pipeline; 9-the finished product is sent to a packaging pipeline.
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.
The invention provides an inorganic paint for an inner wall, which is prepared from organic-inorganic composite emulsion and comprises the following components in percentage by weight: 18-37% of water, 0.2-1.0% of powdery thickener, 0.1-0.3% of bactericide, 0.4-0.8% of dispersant, 0.1-0.4% of wetting agent, 0.2-0.7% of defoamer, 0.1-0.3% of pH value regulator, 5-20% of titanium dioxide, 3-10% of kaolin, 22.4-35% of functional filler and 10-35% of organic-inorganic composite emulsion.
In the above inorganic paint for interior walls, the water is at least one of drinking water, purified water or deionized water containing no divalent metal ions. Water is an indispensable component in the inorganic paint for interior walls, and water with high content of divalent ions such as calcium, magnesium and the like cannot be selected, because the ions can react with the emulsion containing potassium silicate to cause the prepared paint to be gelled, deteriorated and wasted. To further prevent the coating from gelling, the present invention selects deionized water with a lower ionic content as a formulation component.
In the above-mentioned inorganic paint for interior walls, the specific kind of the thickener can be selected within a wide range, but in order to further improve the viscosity and workability of the inorganic paint for interior walls, the powdery thickener is hydroxyethyl cellulose and modified bentonite 2: 1. The formula of the invention selects the powdery thickener for thickening, and the thickener does not react with the organic and inorganic emulsion.
In the above-mentioned inorganic paint for interior walls, the specific kind of the bactericide may be selected within a wide range, but in order to satisfy the requirements of the relevant laws and environmental protection and to ensure its excellent performance, the bactericide is a formaldehyde-free liquid material such as WL1 of basf corporation, whose main component is benzisothiazolinone, which is resistant to high temperature and does not decompose at 70 ℃.
In the inorganic paint for the inner wall, in order to improve the beating speed of the fineness of the powder material during beating and improve the stability of an inorganic paint system, a polyacrylic acid metal salt dispersant is added into the formula. The specific type of the dispersing agent can be selected in a wide range, the dispersing agent is a liquid polyacrylate material, such as FS705 from Solvay, the main component of the dispersing agent is potassium polyacrylate, and a paint film has good water-whitening resistance and can provide better scrubbing resistance for the paint.
In the interior wall inorganic coating, in order to further improve the storage stability of the interior wall inorganic coating and facilitate color matching, a certain amount of wetting agent is added into the formula. The specific type of the wetting agent can be selected from a wide range, but in order to facilitate toning and improve storage stability, the wetting agent is a liquid APEO-free material, such as X408 from the Dow company, and the main component of the wetting agent is aliphatic polyoxyethylene ether.
In the above-mentioned inorganic interior wall coating material, the specific kind of the pH adjusting agent may be selected within a wide range, and the pH adjusting agent is a liquid organic ammonia or an inorganic alkali material in order to sufficiently dissolve the powdery thickener and prevent the inorganic interior wall coating material from deteriorating the dry film antibacterial and antifungal properties. Specifically, the pH regulator is one or more of AMP-95, KOH and NaOH, preferably, KOH is selected as the pH regulator, and can reduce VOC and be beneficial to system stability.
In the inorganic paint for the inner wall, the titanium dioxide is rutile type. In order to meet the covering power requirement of the product, a certain amount of titanium dioxide is added in the formula, and the titanium dioxide is rutile type.
In the inorganic paint for the inner wall, the kaolin is calcined kaolin with the fineness of more than 1250 meshes. In order to reduce the cost and improve the anti-settling performance of the product, a certain amount of superfine calcined kaolin is added in the formula to act synergistically with titanium dioxide, the covering power of the product is improved, and the particle size of the kaolin is more than 1250 meshes.
In the inorganic paint for the inner wall, the functional filler is a divalent ion powder material which does not contain or contains extremely low content of free calcium ions, magnesium ions and the like;
wherein the divalent ion powder material is prepared from calcium carbonate, wollastonite powder, barium sulfate and talcum powder according to the weight ratio of 5: 2: 1: 2, mixing the mixture in advance by a manufacturer;
the mesh number of the divalent ion powder material is 800 meshes to 1000 meshes.
In order to inhibit and eliminate bubbles generated during production and storage of products, a certain amount of defoaming agent is added in the formula, the defoaming agent is mineral oil defoaming agent and organosilicon defoaming agent, the mineral oil defoaming agent is added during production and pulping, and the organosilicon defoaming agent is added during production and paint mixing.
In the inorganic paint for inner wall, the organic-inorganic composite emulsion is prepared by mixing potassium silicate, 1 percent of hydroxyethyl cellulose solution and special emulsion in a weight ratio of 8.5: 0.5: 1 proportion of the compounded mixture;
wherein the compounding at least satisfies the following conditions: the stirring rate is 300-500 rpm.
The mixing method comprises the following steps: 1) adding 85 parts of potassium silicate solution into the container at a constant speed under the stirring of 300-500 rpm; 2) 5 parts of a 1% hydroxyethyl cellulose solution and a tailored emulsion are added in succession.
The special emulsion is a product synthesized by adopting a core-shell technology and adding functional monomers, has low vitrification film forming temperature, can form a film at the temperature of minus 5 ℃, has certain elasticity, and can improve the conditions that a paint film of a potassium silicate solution used alone is crisp and cracked. Meanwhile, a reactive emulsifier system is adopted in the special emulsion, the prepared emulsion has high stability of multivalent ions and good intermiscibility with potassium silicate, and the addition of the non-release hydroxyethyl cellulose solution ensures that the organic-inorganic composite emulsion has strong stability when being stored independently or used in products.
The model of the special emulsion is LP100, and is produced by a West Elder emulsion manufacturer.
In order to improve the strength and thickness of a paint film of the inorganic paint for the interior wall so as to meet the mechanical performance of the paint film, functional filler is added into the product formula, wherein the functional filler is a mixture of wollastonite powder, calcium carbonate, barium sulfate and talcum powder and is provided by a powder supplier. Meanwhile, the filler does not contain free divalent metal ions or has extremely low content of free divalent ions. The functional filler does not react with the organic-inorganic composite emulsion.
In order to ensure the stability of the organic-inorganic composite emulsion in batches for a long time, a foreign product is finally selected as an adhesive in a formula through multiple evaluation experiment screening. The organic-inorganic composite milk is LP 100.
The invention also provides a preparation method of the inorganic paint for the inner wall prepared from the organic-inorganic composite emulsion, which is characterized by comprising the following steps:
s100, carrying out first mixing on water and a bactericide to prepare a first mixed solution;
s200, carrying out second mixing on the powdery thickener and the first mixed solution to obtain a second mixed solution;
s300, carrying out third mixing on the dispersing agent, the defoaming agent and the second mixed solution to obtain a third mixed solution;
s400, carrying out fourth mixing on the pH regulator and the third mixed solution to prepare a fourth mixed solution;
s500, performing fifth mixing on the defoaming agent and the fourth mixed solution to prepare a fifth mixed solution;
s600, carrying out sixth mixing on titanium dioxide, kaolin, functional filler and the fifth mixed solution to prepare a sixth mixed solution;
s700, carrying out seventh mixing on the organic-inorganic composite emulsion, the defoaming agent and the sixth mixed solution to prepare the inorganic paint for the inner wall;
wherein the weight ratio of the defoaming agent in the step S300 to the defoaming agent in the step S700 is 1: 1.
In the above-mentioned production method, the conditions of the first mixing are not particularly limited, but in order to further enhance the thickening effect of the interior wall inorganic coating material, it is preferable that the first mixing satisfies at least the following conditions: the stirring speed is 500-800 r/min, and the mixing time is 2-3 min.
In the above-mentioned production method, the conditions of the second mixing are not particularly limited, but in order to further improve the mixing effect of the interior wall inorganic coating material, it is preferable that the second mixing at least satisfies the following conditions: the stirring speed is 500-800 r/min, and the mixing time is 3-5 min.
In the above-mentioned production method, the conditions of the third mixing are not particularly limited, but in order to further improve the defoaming effect of the interior wall inorganic coating material, it is preferable that the third mixing satisfies at least the following conditions: the stirring speed is 500-800 r/min, and the mixing time is 2-3 min.
In the above-mentioned preparation method, the conditions of the fourth mixing are not particularly limited, but in order to further improve the mixing effect of the interior wall inorganic coating material, it is preferable that the fourth mixing at least satisfies the following conditions: the stirring speed is 500-800 r/min, and the mixing time is 1-2 min.
In the above-mentioned production method, the conditions of the fifth mixing are not particularly limited, but in order to further improve the defoaming effect of the interior wall inorganic coating material, the fifth mixing satisfies at least the following conditions: the stirring speed is 500-800 r/min, and the mixing time is 2-3 min.
In the above-mentioned preparation method, the conditions of the sixth mixing are not particularly limited, but in order to further improve the mixing effect and coating stability of the interior wall inorganic coating material, the sixth mixing satisfies at least the following conditions: the stirring speed is 1300-1450 revolutions per minute, the mixing time is 20-30 minutes, and the fineness of the sixth mixed solution is less than 50 um.
In the above-mentioned preparation method, the conditions of the seventh mixing are not particularly limited, but in order to further enhance the mixing effect of the inorganic coating material for interior walls, the seventh mixing at least satisfies the following conditions: the stirring rate is 80-90 rpm and the mixing time is 10 minutes.
The present invention will be described in further detail with reference to specific embodiments below:
in the case of the following examples,
example 1:
preparation of raw material A (total 100 g): 18g of water, 0.2g of powdery thickener, 0.1g of bactericide, 0.4g of dispersant, 0.1g of wetting agent, 0.7g of defoamer, 0.1g of pH value regulator, 20g of titanium dioxide, 3g of kaolin, 22.4g of functional filler and 35g of organic-inorganic composite emulsion.
B. Preparing an inorganic coating for the inner wall:
1) cleaning a high-speed dispersion kettle 1, a low-speed paint mixing kettle 2, a powder conveying pipeline 3, a water conveying pipeline 4, a high-speed dispersion process liquid auxiliary agent raw material conveying pipeline 5, a water slurry conveying pipeline 6, a paint mixing process liquid raw material conveying pipeline 7, an organic-inorganic composite emulsion conveying pipeline 8 and a finished product packaging removal pipeline 9 by using deionized water, and taking out redundant multivalent ion impurities;
2) adding water into the deionized water-to-high speed dispersion kettle 1 through the water conveying pipeline 4, starting the deionized water-to-high speed dispersion kettle 1, enabling the rotating speed to reach 500 plus 800 revolutions per minute, adding the bactericide under the stable stirring state, and stirring for 3 minutes after the material addition is finished to obtain a mixed solution;
3) adding a powdery thickening agent into the mixed solution obtained in the step 2) through a powder conveying pipeline 3, and stirring for 5 minutes after the addition is finished to obtain a mixed solution;
4) sequentially adding a dispersing agent and a wetting agent into the mixed liquid obtained in the step 3) through a liquid auxiliary raw material conveying pipeline 5 in a high-speed dispersing process, and stirring for 3 minutes after the addition is finished to obtain the mixed liquid;
5) adding a pH regulator into the mixed solution obtained in the step 4) through a liquid auxiliary raw material conveying pipeline 5 in a high-speed dispersion process, and stirring for 2 minutes after the addition is finished to obtain a mixed solution;
6) adding 0.35g of defoaming agent into the mixed solution obtained in the step 5) through a liquid auxiliary raw material conveying pipeline 5 in a high-speed dispersion process, and stirring for 3 minutes after the addition is finished to obtain the mixed solution
7) Titanium dioxide, kaolin and functional filler are sequentially added into the mixed liquid obtained in the step 6) through a powder conveying pipeline 3, deionized water is used for washing the high-speed dispersion kettle 1 through a water conveying pipeline 4 after the materials are added, raw materials on the inner wall of the tank above the liquid surface and a dispersion shaft are washed into the materials, the rotating speed of a motor is adjusted to 1300 plus 1450 revolutions per minute, the materials are stirred for 30 minutes to obtain the mixed liquid, and the mixed liquid enters the next step when the fineness index of the mixed liquid is tested and the fineness is less than 50 mu m;
8) adding the mixed solution obtained in the step 7) into a low-speed paint mixing kettle 2 through a water slurry conveying pipeline 6, sequentially adding the organic-inorganic composite emulsion and 0.35g of defoaming agent, controlling the rotating speed at 80-90 r/min, and stirring for 10 minutes after the material is added to obtain the inorganic coating for the inner wall prepared in the embodiment 1.
Example 2:
preparation of raw material A (total 100 g): 25g of water, 0.5g of powdery thickener, 0.15g of bactericide, 0.6g of dispersant, 0.15g of wetting agent, 0.45g of defoamer, 0.15g of pH value regulator, 15g of titanium dioxide, 5g of kaolin, 28g of functional filler and 25g of organic-inorganic composite emulsion.
B. Preparing an inorganic coating for the inner wall:
1) cleaning a high-speed dispersion kettle 1, a low-speed paint mixing kettle 2, a powder conveying pipeline 3, a water conveying pipeline 4, a high-speed dispersion process liquid auxiliary agent raw material conveying pipeline 5, a water slurry conveying pipeline 6, a paint mixing process liquid raw material conveying pipeline 7, an organic-inorganic composite emulsion conveying pipeline 8 and a finished product packaging removal pipeline 9 by using deionized water, and taking out redundant multivalent ion impurities;
2) adding water into the deionized water-to-high speed dispersion kettle 1 through the water conveying pipeline 4, starting the deionized water-to-high speed dispersion kettle 1, enabling the rotating speed to reach 500 plus 800 revolutions per minute, adding the bactericide under the stable stirring state, and stirring for 3 minutes after the material addition is finished to obtain a mixed solution;
3) adding a powdery thickener into the mixed solution obtained in the step 2) through a powder conveying pipeline 3, and stirring for 5 minutes after the addition is finished to obtain a mixed solution;
4) sequentially adding a dispersing agent and a wetting agent into the mixed liquid obtained in the step 3) through a liquid auxiliary raw material conveying pipeline 5 in a high-speed dispersing process, and stirring for 3 minutes after the addition is finished to obtain the mixed liquid;
5) adding a pH regulator into the mixed solution obtained in the step 4) through a liquid auxiliary raw material conveying pipeline 5 in a high-speed dispersion process, and stirring for 2 minutes after the addition is finished to obtain a mixed solution;
6) adding 0.225g of defoaming agent into the mixed solution obtained in the step 5) through a liquid auxiliary agent raw material conveying pipeline 5 in a high-speed dispersion process, and stirring for 3 minutes after the addition is finished to obtain the mixed solution
7) Titanium dioxide, kaolin and functional filler are sequentially added into the mixed solution in the step 6) through a powder conveying pipeline 3, deionized water is used for washing the high-speed dispersion kettle 1 through a water conveying pipeline 4 after the materials are added, the raw materials on the inner wall of the tank above the liquid surface and a dispersion shaft are washed into the materials, the rotating speed of a motor is adjusted to 1300 plus 1450 turns/minute, the materials are stirred for 30 minutes to obtain the mixed solution, and the mixed solution enters the next step when the fineness index of the mixed solution is tested and the fineness is less than 50 mu m;
8) adding the mixed solution obtained in the step 7) into a low-speed paint mixing kettle 2 through a water slurry conveying pipeline 6, sequentially adding the organic-inorganic composite emulsion and 0.225g of defoaming agent, controlling the rotating speed at 80-90 revolutions per minute, and stirring for 10 minutes after the material addition is finished to obtain the inorganic coating for the inner wall prepared in the embodiment 2.
Example 3:
preparation of raw material A (total 100 g): 32g of water, 0.7g of powdery thickener, 0.2g of bactericide, 0.7g of dispersant, 0.35g of wetting agent, 0.35g of defoamer, 0.2g of pH value regulator, 10g of titanium dioxide, 7.5g of kaolin, 30g of functional filler and 18g of organic-inorganic composite emulsion.
B. Preparing an inorganic coating for the inner wall:
1) cleaning a high-speed dispersion kettle 1, a low-speed paint mixing kettle 2, a powder conveying pipeline 3, a water conveying pipeline 4, a high-speed dispersion process liquid auxiliary agent raw material conveying pipeline 5, a water slurry conveying pipeline 6, a paint mixing process liquid raw material conveying pipeline 7, an organic-inorganic composite emulsion conveying pipeline 8 and a finished product packaging removal pipeline 9 by using deionized water, and taking out redundant multivalent ion impurities;
2) adding water into the deionized water-to-high speed dispersion kettle 1 through the water conveying pipeline 4, starting the deionized water-to-high speed dispersion kettle 1, enabling the rotating speed to reach 500 plus 800 revolutions per minute, adding the bactericide under the stable stirring state, and stirring for 3 minutes after the material addition is finished to obtain a mixed solution;
3) adding a powdery thickener into the mixed solution obtained in the step 2) through a powder conveying pipeline 3, and stirring for 5 minutes after the addition is finished to obtain a mixed solution;
4) sequentially adding a dispersing agent and a wetting agent into the mixed liquid obtained in the step 3) through a liquid auxiliary raw material conveying pipeline 5 in a high-speed dispersing process, and stirring for 3 minutes after the addition is finished to obtain the mixed liquid;
5) adding a pH regulator into the mixed solution obtained in the step 4) through a liquid auxiliary raw material conveying pipeline 5 in a high-speed dispersion process, and stirring for 2 minutes after the addition is finished to obtain a mixed solution;
6) adding 0.175g of defoaming agent into the mixed solution obtained in the step 5) through a liquid auxiliary raw material conveying pipeline 5 in a high-speed dispersion process, and stirring for 3 minutes after the addition is finished to obtain the mixed solution
7) Titanium dioxide, kaolin and functional filler are sequentially added into the mixed liquid obtained in the step 6) through a powder conveying pipeline 3, deionized water is used for washing the high-speed dispersion kettle 1 through a water conveying pipeline 4 after the materials are added, raw materials on the inner wall of the tank above the liquid surface and a dispersion shaft are washed into the materials, the rotating speed of a motor is adjusted to 1300 plus 1450 revolutions per minute, the materials are stirred for 30 minutes to obtain the mixed liquid, and the mixed liquid enters the next step when the fineness index of the mixed liquid is tested and the fineness is less than 50 mu m;
8) adding the mixed solution obtained in the step 7) into a low-speed paint mixing kettle 2 through a water slurry conveying pipeline 6, sequentially adding the organic-inorganic composite emulsion and 0.175g of defoaming agent, controlling the rotating speed at 80-90 revolutions per minute, and stirring for 10 minutes after the addition is finished to obtain the inorganic coating for the inner wall prepared in the embodiment 3.
Example 4:
preparation of raw material A (total 100 g): 37g of water, 1.0g of powdery thickener, 0.3g of bactericide, 0.8g of dispersant, 0.4g of wetting agent, 0.2g of defoamer, 0.3g of pH regulator, 5g of titanium dioxide, 10g of kaolin, 35g of functional filler and 10g of organic-inorganic composite emulsion.
B. Preparing an inorganic coating for the inner wall:
1) cleaning a high-speed dispersion kettle 1, a low-speed paint mixing kettle 2, a powder conveying pipeline 3, a water conveying pipeline 4, a high-speed dispersion process liquid auxiliary agent raw material conveying pipeline 5, a water slurry conveying pipeline 6, a paint mixing process liquid raw material conveying pipeline 7, an organic-inorganic composite emulsion conveying pipeline 8 and a finished product packaging removal pipeline 9 by using deionized water, and taking out redundant multivalent ion impurities;
2) adding water into the deionized water-to-high speed dispersion kettle 1 through the water conveying pipeline 4, starting the deionized water-to-high speed dispersion kettle 1, enabling the rotating speed to reach 500 plus 800 revolutions per minute, adding the bactericide under the stable stirring state, and stirring for 3 minutes after the material addition is finished to obtain a mixed solution;
3) adding a powdery thickener into the mixed solution obtained in the step 2) through a powder conveying pipeline 3, and stirring for 5 minutes after the addition is finished to obtain a mixed solution;
4) sequentially adding a dispersing agent and a wetting agent into the mixed liquid obtained in the step 3) through a liquid auxiliary raw material conveying pipeline 5 in a high-speed dispersing process, and stirring for 3 minutes after the addition is finished to obtain the mixed liquid;
5) adding a pH regulator into the mixed solution obtained in the step 4) through a liquid auxiliary raw material conveying pipeline 5 in a high-speed dispersion process, and stirring for 2 minutes after the addition is finished to obtain a mixed solution;
6) adding 0.1g of defoaming agent into the mixed solution obtained in the step 5) through a liquid auxiliary agent raw material conveying pipeline 5 in a high-speed dispersion process, and stirring for 3 minutes after the addition is finished to obtain the mixed solution
7) Titanium dioxide, kaolin and functional filler are sequentially added into the mixed liquid obtained in the step 6) through a powder conveying pipeline 3, deionized water is used for washing the high-speed dispersion kettle 1 through a water conveying pipeline 4 after the materials are added, raw materials on the inner wall of the tank above the liquid surface and a dispersion shaft are washed into the materials, the rotating speed of a motor is adjusted to 1300 plus 1450 revolutions per minute, the materials are stirred for 30 minutes to obtain the mixed liquid, and the mixed liquid enters the next step when the fineness index of the mixed liquid is tested and the fineness is less than 50 mu m;
8) adding the mixed solution obtained in the step 7) into a low-speed paint mixing kettle 2 through a water slurry conveying pipeline 6, sequentially adding the organic-inorganic composite emulsion and 0.1g of defoaming agent, controlling the rotating speed at 80-90 revolutions per minute, and stirring for 10 minutes after the material addition is finished to obtain the inorganic coating for the inner wall prepared in the embodiment 4.
Example 5:
the procedure is as in example 1, except that:
preparation of raw material A (total 100 g): 18g of water, 0.2g of powdery thickener, 0.1g of bactericide, 0.4g of dispersant, 0.1g of wetting agent, 0.7g of defoamer, 0.1g of pH value regulator, 20g of titanium dioxide, 3g of kaolin, 22.4g of functional filler and 35g of common inorganic emulsion; the other steps are the same.
The inorganic coatings for interior walls described in examples 1 to 5 were subjected to the test of factory control indexes, and the test results are shown in Table 1 and Table 1
The physical property indexes of the inorganic coatings for interior walls described in the above examples 1 to 5 were measured, and the results are shown in Table 2 (GB/T9756-2018 Standard of synthetic resin emulsion interior wall coating)
TABLE 2
As can be seen from tables 1 and 2, the performance of the example 1 can meet the requirement of a superior product, the performance of the example 2 can meet the requirement of more than one product, the performance of the example 3 is between the performance of a qualified product and the performance of one product, the performance of the example 4 can meet the requirement of a qualified product, and the performance of the example 5 is the worst, so that the performance of the inorganic coating for the inner wall is increased along with the increase of the content of the organic-inorganic composite emulsion, and the organic-inorganic composite emulsion has the effect of remarkably improving the stability of the coating compared with the conventional inorganic emulsion.
The interior wall inorganic coatings described in the above examples 1 to 4 were subjected to the detection of harmful substance performance indexes, and the detection results are shown in table 3.
Executing the GB/T23986-2009 Standard of Limit of harmful substances in building wall paint, wherein a detection instrument is a gas chromatograph, preferably a thermal sample injection mode, a medium-polarity chromatographic column (6% of cumyl benzene/94% of polydimethylsiloxane capillary column) is adopted as the chromatographic column, and a marker is diethyl adipate.
TABLE 3
As can be seen from Table 3, none of the four example formulations contained the VOC and hazardous substances specified in GB/T23986-2009.
The inorganic paint for interior walls described in the above examples 1-4 was tested for antibacterial and antifungal performance index, and the test results are shown in table 4 (HG/T3950-2007 standard "antibacterial paint").
TABLE 4
As can be seen from Table 4, the formulations of the four examples all reach class I.
The inorganic paint for interior walls described in the above examples 1 to 4 was subjected to the test of the index of combustion performance index, and the test results are shown in table 5 (the standard of GB8624-2012 "classification of combustion performance of building materials and products" is executed).
TABLE 5
As can be seen from Table 5, the formulations of all four examples achieved class A (A2-s1, d 0).
By the inorganic coating for the inner wall prepared from the organic-inorganic composite emulsion and the preparation method thereof, the inorganic coating has higher environmental protection performance, does not contain VOC and harmful substances, has the performances of non-combustion, self-respiration, antibiosis and mildew prevention, and is beneficial to improving the storage stability, and the normal-temperature storage can achieve no deterioration and no gelation for one year according to the conversion of a heat storage experimental result; and the product quality control links are few, the operation efficiency is high, the economic benefit is obvious, and the popularization and the application are facilitated.
The above embodiments are only exemplary embodiments of the present application, and are not intended to limit the present application, and the protection scope of the present application is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present application and such modifications and equivalents should also be considered to be within the scope of the present application.
Claims (10)
1. An inorganic paint for interior walls, which is prepared from organic-inorganic composite emulsion, is characterized by comprising the following components in percentage by weight: 18-37% of water, 0.2-1.0% of powdery thickener, 0.1-0.3% of bactericide, 0.4-0.8% of dispersant, 0.1-0.4% of wetting agent, 0.2-0.7% of defoamer, 0.1-0.3% of pH value regulator, 5-20% of titanium dioxide, 3-10% of kaolin, 22.4-35% of functional filler and 10-35% of organic-inorganic composite emulsion.
2. The inorganic paint for the inner wall prepared from the organic-inorganic composite emulsion as claimed in claim 1, wherein the water is at least one selected from drinking water, purified water and deionized water which do not contain divalent metal ions.
3. The inorganic paint for the inner wall prepared from the organic-inorganic composite emulsion according to claim 1, wherein the powdery thickener comprises the following components in parts by weight: 2 parts of hydroxyethyl cellulose and 1 part of modified bentonite.
4. The inorganic paint for the inner wall prepared from the organic-inorganic composite emulsion according to claim 1, wherein the bactericide is benzisothiazolinone;
wherein the dispersant is potassium polyacrylate.
The wetting agent is aliphatic polyoxyethylene ether.
The pH regulator is at least one of AMP-95, KOH and NaOH.
5. The inorganic paint for interior walls prepared from the organic-inorganic composite emulsion according to claim 1, wherein the titanium dioxide is rutile type;
wherein the kaolin is calcined kaolin, and the fineness of the kaolin is more than 1250 meshes.
6. The inorganic paint for the inner wall prepared from the organic-inorganic composite emulsion according to claim 1, wherein the functional filler is a divalent ion powder material containing no or very low content of free calcium ions, magnesium ions and the like;
wherein the divalent ion powder material is prepared from calcium carbonate, wollastonite powder, barium sulfate and talcum powder according to the weight ratio of 5: 2: 1: 2, mixing;
the mesh number of the divalent ion powder material is 800 meshes to 1000 meshes.
7. The inorganic paint for inner wall prepared from organic-inorganic composite emulsion as claimed in claim 1, wherein the organic-inorganic composite emulsion is potassium silicate, 1% hydroxyethyl cellulose solution and special emulsion, and the weight ratio of the organic-inorganic composite emulsion to the special emulsion is 8.5: 0.5: 1 proportion of the compounded mixture;
wherein the compounding at least satisfies the following conditions: the stirring rate is 300-500 rpm.
8. A method for preparing the inorganic paint for internal wall made of the organic-inorganic composite emulsion according to any one of claims 1 to 7, which comprises the following steps:
s100, carrying out first mixing on water and a bactericide to prepare a first mixed solution;
s200, carrying out second mixing on the powdery thickener and the first mixed solution to obtain a second mixed solution;
s300, carrying out third mixing on the dispersing agent, the defoaming agent and the second mixed solution to obtain a third mixed solution;
s400, carrying out fourth mixing on the pH regulator and the third mixed solution to prepare a fourth mixed solution;
s500, performing fifth mixing on the defoaming agent and the fourth mixed solution to prepare a fifth mixed solution;
s600, carrying out sixth mixing on titanium dioxide, kaolin, functional filler and the fifth mixed solution to prepare a sixth mixed solution;
s700, carrying out seventh mixing on the organic-inorganic composite emulsion, the defoaming agent and the sixth mixed solution to prepare the inorganic paint for the inner wall;
wherein the weight ratio of the defoaming agent in the step S300 to the defoaming agent in the step S700 is 1: 1.
9. The method of claim 8, wherein the first mixing satisfies at least the following condition: the stirring speed is 500-800 r/min, and the mixing time is 2-3 min;
the second mixing satisfies at least the following conditions: the stirring speed is 500-800 r/min, and the mixing time is 3-5 min;
the third mixing satisfies at least the following conditions: the stirring speed is 500-800 r/min, and the mixing time is 2-3 min;
the fourth blend at least satisfies the following condition: the stirring speed is 500-800 r/min, and the mixing time is 1-2 min;
the fifth blend satisfies at least the following conditions: the stirring speed is 500-800 r/min, and the mixing time is 2-3 min;
the sixth blend satisfies at least the following conditions: the stirring speed is 1300-1450 rpm, and the mixing time is 20-30 minutes;
the seventh blend satisfies at least the following conditions: the stirring speed is 80-90 revolutions per minute and the mixing time is 10 minutes.
10. The method of claim 9, wherein the sixth mixing satisfies at least the following condition: the fineness of the sixth mixed solution is less than 50 um.
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| CN113980499A (en) * | 2021-10-19 | 2022-01-28 | 龙牌涂料(北京)有限公司 | Antiallergic inorganic interior wall children paint and preparation method thereof |
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| CN111607260A (en) * | 2020-06-29 | 2020-09-01 | 中国建筑材料科学研究总院有限公司 | Organic-inorganic composite interior wall coating and preparation method thereof |
| CN113980499A (en) * | 2021-10-19 | 2022-01-28 | 龙牌涂料(北京)有限公司 | Antiallergic inorganic interior wall children paint and preparation method thereof |
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Application publication date: 20220705 |