CN115851010B - Inorganic coating and preparation method and application thereof - Google Patents
Inorganic coating and preparation method and application thereof Download PDFInfo
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- CN115851010B CN115851010B CN202211610249.5A CN202211610249A CN115851010B CN 115851010 B CN115851010 B CN 115851010B CN 202211610249 A CN202211610249 A CN 202211610249A CN 115851010 B CN115851010 B CN 115851010B
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- 238000000576 coating method Methods 0.000 title claims abstract description 82
- 239000011248 coating agent Substances 0.000 title claims abstract description 81
- 238000002360 preparation method Methods 0.000 title claims abstract description 20
- 239000000839 emulsion Substances 0.000 claims abstract description 28
- 239000002994 raw material Substances 0.000 claims abstract description 21
- 239000004964 aerogel Substances 0.000 claims abstract description 19
- 239000002002 slurry Substances 0.000 claims abstract description 18
- 229910052809 inorganic oxide Inorganic materials 0.000 claims abstract description 13
- 239000000835 fiber Substances 0.000 claims abstract description 12
- 229910052910 alkali metal silicate Inorganic materials 0.000 claims abstract description 11
- 238000009413 insulation Methods 0.000 claims abstract description 4
- 238000002156 mixing Methods 0.000 claims description 36
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 29
- 239000003973 paint Substances 0.000 claims description 29
- -1 amine salt Chemical class 0.000 claims description 24
- 239000011521 glass Substances 0.000 claims description 22
- 239000003093 cationic surfactant Substances 0.000 claims description 20
- 239000003381 stabilizer Substances 0.000 claims description 20
- 238000003756 stirring Methods 0.000 claims description 20
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 18
- 239000013530 defoamer Substances 0.000 claims description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 15
- 239000002270 dispersing agent Substances 0.000 claims description 15
- 239000004005 microsphere Substances 0.000 claims description 15
- 239000000843 powder Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 239000008367 deionised water Substances 0.000 claims description 14
- 229910021641 deionized water Inorganic materials 0.000 claims description 14
- 239000004111 Potassium silicate Substances 0.000 claims description 13
- 229910052913 potassium silicate Inorganic materials 0.000 claims description 13
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims description 13
- 235000019353 potassium silicate Nutrition 0.000 claims description 13
- 239000012752 auxiliary agent Substances 0.000 claims description 12
- 239000000049 pigment Substances 0.000 claims description 11
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 10
- 239000002518 antifoaming agent Substances 0.000 claims description 10
- 239000000945 filler Substances 0.000 claims description 10
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims description 10
- 238000005303 weighing Methods 0.000 claims description 10
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims description 9
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 9
- 229920002678 cellulose Polymers 0.000 claims description 9
- 239000001913 cellulose Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 8
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 8
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 8
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 8
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 8
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 8
- 102100031636 Dynein axonemal heavy chain 9 Human genes 0.000 claims description 7
- 101000575170 Halobacterium salinarum (strain ATCC 700922 / JCM 11081 / NRC-1) 50S ribosomal protein L12 Proteins 0.000 claims description 7
- 101000866325 Homo sapiens Dynein axonemal heavy chain 9 Proteins 0.000 claims description 7
- 235000003332 Ilex aquifolium Nutrition 0.000 claims description 7
- 235000002296 Ilex sandwicensis Nutrition 0.000 claims description 7
- 235000002294 Ilex volkensiana Nutrition 0.000 claims description 7
- 229920002522 Wood fibre Polymers 0.000 claims description 7
- 150000002462 imidazolines Chemical class 0.000 claims description 7
- 239000002025 wood fiber Substances 0.000 claims description 7
- POAOYUHQDCAZBD-UHFFFAOYSA-N 2-butoxyethanol Chemical compound CCCCOCCO POAOYUHQDCAZBD-UHFFFAOYSA-N 0.000 claims description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- USIUVYZYUHIAEV-UHFFFAOYSA-N diphenyl ether Chemical compound C=1C=CC=CC=1OC1=CC=CC=C1 USIUVYZYUHIAEV-UHFFFAOYSA-N 0.000 claims description 6
- LQZZUXJYWNFBMV-UHFFFAOYSA-N ethyl butylhexanol Natural products CCCCCCCCCCCCO LQZZUXJYWNFBMV-UHFFFAOYSA-N 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- 150000003512 tertiary amines Chemical class 0.000 claims description 6
- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical compound CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 claims description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 4
- 125000000623 heterocyclic group Chemical group 0.000 claims description 4
- 239000010445 mica Substances 0.000 claims description 4
- 229910052618 mica group Inorganic materials 0.000 claims description 4
- 150000003961 organosilicon compounds Chemical class 0.000 claims description 4
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000010453 quartz Substances 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims description 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 3
- 229910021331 inorganic silicon compound Inorganic materials 0.000 claims description 3
- 239000004115 Sodium Silicate Substances 0.000 claims description 2
- PAZHGORSDKKUPI-UHFFFAOYSA-N lithium metasilicate Chemical compound [Li+].[Li+].[O-][Si]([O-])=O PAZHGORSDKKUPI-UHFFFAOYSA-N 0.000 claims description 2
- 229910052912 lithium silicate Inorganic materials 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 2
- 238000004321 preservation Methods 0.000 abstract description 10
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000002265 prevention Effects 0.000 abstract description 2
- 239000000084 colloidal system Substances 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 10
- 239000011324 bead Substances 0.000 description 9
- 230000000670 limiting effect Effects 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 239000004408 titanium dioxide Substances 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 239000011230 binding agent Substances 0.000 description 6
- 230000003247 decreasing effect Effects 0.000 description 6
- IJKVHSBPTUYDLN-UHFFFAOYSA-N dihydroxy(oxo)silane Chemical compound O[Si](O)=O IJKVHSBPTUYDLN-UHFFFAOYSA-N 0.000 description 6
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical group [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- QCDWFXQBSFUVSP-UHFFFAOYSA-N 2-phenoxyethanol Chemical compound OCCOC1=CC=CC=C1 QCDWFXQBSFUVSP-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 229910052863 mullite Inorganic materials 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 229910052814 silicon oxide Inorganic materials 0.000 description 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000011630 iodine Substances 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 206010040844 Skin exfoliation Diseases 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000012767 functional filler Substances 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical class I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000011325 microbead Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000025 natural resin Substances 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- XUGSDIOYQBRKGF-UHFFFAOYSA-N silicon;hydrochloride Chemical compound [Si].Cl XUGSDIOYQBRKGF-UHFFFAOYSA-N 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
Abstract
The invention provides an inorganic coating, a preparation method and application thereof. The inorganic coating comprises the following raw materials in parts by weight: 50 to 90 parts of alkali metal silicate, 100 to 180 parts of inorganic oxide nano sol, 80 to 150 parts of emulsion, 150 to 250 parts of aerogel aqueous slurry and 3 to 5 parts of short fiber. The inorganic coating prepared by the invention has the functions of heat preservation, heat insulation and fire prevention, and has the advantages of better bonding strength, lower heat conductivity coefficient, environmental protection and energy conservation.
Description
Technical Field
The invention relates to the field of heat-insulating plates, in particular to an inorganic coating, a preparation method and application thereof.
Background
Under the condition of shortage of global energy supply, energy saving and heat preservation become a concern, a heat preservation plate is used as a current common heat preservation mode, but the heat preservation plate has a certain problem, in recent years, a plurality of high-rise buildings are in fire disaster, fireproof building materials are fire extinguishment and personnel evacuation winning time, recently, heat preservation materials without using plates are mentioned in the landmark of the construction in the Shanghai, and therefore, fireproof heat preservation and heat preservation paint is used as a heat preservation material for replacing the plates. However, most of the current fireproof coatings are to add flame retardant into the coating to achieve fireproof effect, and other functional effects are common.
CN 105038422A discloses a heat-insulating and heat-preserving coating for a composite functional building wall, which is formed by compounding a reflective heat-insulating and heat-preserving coating with a reflective function. The barrier heat-insulating coating is based on heat-insulating lightweight aggregate fly ash floating beads, ceramic microbeads and the like, and is compounded with numerical emulsion, functional filler and the like, so that the heat conductivity coefficient is reduced, but the barrier heat-insulating coating has no beneficial effect on improving the cohesiveness of the anode material.
CN207210271U discloses a heat-insulating paint, an indoor environment-friendly heat-insulating paint, an outdoor environment-friendly heat-insulating paint and floors using hollow glass beads. The hollow glass bead layer is adhered to the upper part of the mixed coating material layer. The mixed paint is formed by sequentially bonding an ultrafine putty powder lime powder layer, a titanium dioxide powder mixture layer, a white cement layer, a rubber powder layer, a floating bead powder layer, a natural resin layer, a styrene-acrylic emulsion layer, a formaldehyde absorbent layer, a film forming auxiliary agent layer, a defoaming agent layer, a plant pigment layer and a nano antibacterial powder layer from top to bottom. The heat-insulating coating has high viscosity, improved fluidity, lower hardness and enhanced hardness, but as a double-layer heat-insulating coating, stronger binding force is needed to ensure the durability of the coating.
How to prepare an inorganic heat-insulating coating with better bonding strength, lower heat conductivity coefficient, environmental protection and energy saving is an important research direction in the field.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a fireproof heat-preserving heat-insulating inorganic coating, and a preparation method and application thereof.
To achieve the purpose, the invention adopts the following technical scheme:
the invention aims at providing an inorganic coating, which is prepared from the following raw materials in parts by weight: 50 to 90 parts of alkali metal silicate, 100 to 180 parts of inorganic oxide nano sol, 80 to 150 parts of emulsion, 150 to 250 parts of aerogel aqueous slurry and 3 to 5 parts of short fiber. Wherein the part of the alkali metal silicate may be 50 parts, 55 parts, 60 parts, 65 parts, 70 parts, 75 parts, 80 parts, 85 parts, 90 parts, etc., wherein the part of the inorganic oxide nanosol may be 100 parts, 110 parts, 120 parts, 130 parts, 140 parts, 150 parts, 160 parts, 170 parts, 180 parts, etc., wherein the part of the aerogel aqueous slurry may be 150 parts, 160 parts, 170 parts, 180 parts, 190 parts, 200 parts, 210 parts, 220 parts, 230 parts, 240 parts, 250 parts, etc., wherein the part of the short fiber may be 3 parts, 4 parts, 5 parts, etc., but not limited to the recited values, and other non-recited values within the above ranges are equally applicable.
In the invention, the alkali metal silicate is used as an inorganic binder, and the silicate radical can be converted into silicate of insoluble multivalent metal ions and silicon dioxide through chemical reaction after curing, so that the inorganic coating can be helped to produce adhesion and form a coating film, and the physicochemical properties required by the inorganic coating are provided. The inorganic oxide nano sol acts as an inorganic binder, and is used as an inorganic binder together, and the inorganic binder cooperate to reduce the internal curing stress of the coating, and simultaneously greatly improve the cohesive force (namely strength) of the coating, so that the inherent defect of poor crack resistance of the inorganic coating is greatly improved.
The emulsion is used as an organic binder, and forms a film through a physical process after construction, pigment and filler in the paint are coated in the emulsion, and meanwhile, the emulsion can play a role in stably improving leveling property, increasing flexibility of a paint film, improving adhesive force and reducing risk of peeling, cracking and falling off in an inorganic system of the formula, the aerogel aqueous slurry has the functions of energizing, insulating heat for the paint, reducing heat conduction by taking air as a medium through an aerogel internal porous structure, and meanwhile, the higher melting point of the aerogel aqueous slurry is better in the integral fireproof effect of the paint. The short fiber has the function of improving the tiny cracks generated by the excessive internal stress in the drying process by using the inorganic binder, and improving the flexibility of the coating.
As a preferable technical scheme of the invention, the mass ratio of the alkali metal silicate to the inorganic oxide nano sol is (0.3-0.6): 1, wherein the mass ratio may be 0.3:1, 0.4:1, 0.5:1, or 0.6:1, etc., but is not limited to the recited values, as other non-recited values within the range of values are equally applicable.
The mass ratio of the components is (0.3-0.6): 1, if the ratio of the silicate to the inorganic oxide nano sol is less than 0.3:1, the bonding strength is affected, and the inorganic oxide nano sol provides poorer bonding force compared with the silicate, so that the powder falling phenomenon can occur. When the ratio of the alkali metal silicate to the metal ion is more than 0.6:1, cracks can be generated due to overlarge internal stress in the silicate reaction process, and the alkali metal silicate can undergo condensation dissociation reversible reaction, and simultaneously is extremely easy to react with polyvalent metal ion Mg 2+ 、Ca 2+ 、Cu 2+ 、Zn 2+ 、Fe 3+ Or Al 3+ And the like, almost irreversible ion reaction occurs, insoluble silicate is generated to be thickened, and even gel is solidified.
In a preferred embodiment of the present invention, the content of the emulsion is 100 to 120 parts by weight, wherein the parts of the emulsion may be 100 parts, 102 parts, 104 parts, 106 parts, 108 parts, 110 parts, 112 parts, 114 parts, 116 parts, 118 parts or 120 parts, etc., but not limited to the recited values, and other non-recited values within the range of the values are equally applicable.
Preferably, the content of the aerogel aqueous slurry is 180 to 220 parts by weight, wherein the parts may be 180 parts, 185 parts, 190 parts, 195 parts, 200 parts, 205 parts, 210 parts, 215 parts, 220 parts, etc., but are not limited to the recited values, and other non-recited values within the range of values are equally applicable.
As a preferable embodiment of the present invention, the silicate includes any one of lithium silicate, sodium silicate, and potassium silicate.
Preferably, the inorganic oxide nanosol comprises any one or a combination of at least two of an alumina nanosol solution, a titania nanosol solution, an iron oxide nanosol solution, a silica nanosol solution, or a zirconia nanosol solution, wherein typical but non-limiting examples of the combination are: a combination of an alumina nano-colloid solution and a titanium oxide nano-colloid solution, a combination of a titanium oxide nano-colloid solution and an iron oxide nano-colloid solution, a combination of an iron oxide nano-colloid solution and a silicon oxide nano-colloid solution, or a combination of a silicon oxide nano-colloid solution and a zirconium oxide nano-colloid solution, etc.
Preferably, the emulsion comprises an acrylic emulsion and/or a styrene-acrylic emulsion.
Preferably, the staple fibers comprise any one or a combination of at least two of wood fibers, glass fibers, or mullite staple fibers, wherein typical but non-limiting examples of the combination are: a combination of wood fibers and glass fibers, a combination of glass fibers and mullite staple fibers, or a combination of wood fibers and mullite staple fibers, and the like.
The preparation raw materials of the inorganic coating also comprise cellulose.
Preferably, the content of the cellulose is 1.5 to 2.5 parts by weight, wherein the content of the cellulose may be 1.5 parts, 1.6 parts, 1.7 parts, 1.8 parts, 1.9 parts, 2.0 parts, 2.1 parts, 2.2 parts, 2.3 parts, 2.4 parts, or 2.5 parts, etc., but is not limited to the recited values, and other non-recited values within the range of values are equally applicable.
Preferably, the preparation raw materials of the inorganic coating further comprise a dispersing agent.
Preferably, the content of the dispersant is 1.5 to 2.5 parts by weight, wherein the part of the dispersant may be 1.5 parts, 1.6 parts, 1.7 parts, 1.8 parts, 1.9 parts, 2.0 parts, 2.1 parts, 2.2 parts, 2.3 parts, 2.4 parts, or 2.5 parts, etc., but is not limited to the recited values, and other non-recited values within the range of values are equally applicable.
Preferably, the preparation raw materials of the inorganic coating also comprise multifunctional auxiliary agents.
Preferably, the content of the multifunctional auxiliary agent is 0.5 to 1.5 parts by weight, wherein the parts of the multifunctional auxiliary agent can be 0.5 part, 0.6 part, 0.7 part, 0.8 part, 0.9 part, 1.0 part, 1.1 part, 1.2 part, 1.3 part, 1.4 part or 1.5 part, etc., but are not limited to the recited values, and other non-recited values in the range of the values are equally applicable.
Preferably, the preparation raw materials of the inorganic coating further comprise a stabilizer.
Preferably, the content of the stabilizer is 1.5 to 2.5 parts by weight, wherein the part of the stabilizer may be 1.5 parts, 1.6 parts, 1.7 parts, 1.8 parts, 1.9 parts, 2.0 parts, 2.1 parts, 2.2 parts, 2.3 parts, 2.4 parts or 2.5 parts, etc., but is not limited to the recited values, and other non-recited values within the range of values are equally applicable.
Preferably, the preparation raw materials of the inorganic coating further comprise an antifoaming agent.
Preferably, the content of the antifoaming agent is 2.5 to 3.5 parts by weight, wherein the part of the antifoaming agent may be 2.5 parts, 2.6 parts, 2.7 parts, 2.8 parts, 2.9 parts, 3.0 parts, 3.1 parts, 3.2 parts, 3.3 parts, 3.4 parts or 3.5 parts, etc., but is not limited to the recited values, and other non-recited values within the range of values are equally applicable.
Preferably, the preparation raw materials of the inorganic coating further comprise a film forming additive.
Preferably, the content of the film forming auxiliary is 5.5 to 6.5 parts by weight, wherein the parts of the film forming auxiliary may be 5.5 parts, 5.6 parts, 5.7 parts, 5.8 parts, 5.9 parts, 6.0 parts, 6.1 parts, 6.2 parts, 6.3 parts, 6.4 parts or 6.5 parts, etc., but are not limited to the recited values, and other non-recited values within the range of values are equally applicable.
Preferably, the raw materials for preparing the inorganic coating further comprise pigment and filler.
Preferably, the pigment and filler is contained in an amount of 180 to 220 parts by weight, wherein the parts of the pigment and filler may be 180 parts, 185 parts, 190 parts, 195 parts, 200 parts, 205 parts, 210 parts, 215 parts, 220 parts, etc., but are not limited to the recited values, and other non-recited values within the range of values are equally applicable.
Preferably, the preparation raw materials of the inorganic coating also comprise hollow glass microspheres.
Preferably, the hollow glass beads are contained in an amount of 40 to 60 parts by weight, wherein the parts of the hollow glass beads may be 40 parts, 42 parts, 44 parts, 46 parts, 48 parts, 50 parts, 52 parts, 54 parts, 56 parts, 58 parts, 60 parts, etc., but are not limited to the recited values, and other non-recited values within the range of values are equally applicable.
Preferably, the preparation raw materials of the inorganic coating further comprise deionized water.
Preferably, the deionized water is contained in an amount of 180 to 275 parts by weight, wherein the parts of deionized water may be 180 parts, 190 parts, 200 parts, 210 parts, 220 parts, 225 parts, 230 parts, 235 parts, 240 parts, 245 parts, 250 parts, 255 parts, 265 parts, 270 parts or 275 parts, etc., but are not limited to the recited values, and other non-recited values within the range of values are equally applicable.
As a preferred embodiment of the present invention, the cellulose comprises hydroxyethyl cellulose.
Preferably, the dispersant comprises a cationic surfactant.
Preferably, the cationic surfactant comprises any one or a combination of at least two of an amine salt type cationic surfactant, a quaternary ammonium salt type cationic surfactant, a heterocyclic type cationic surfactant or a salt type cationic surfactant, wherein typical but non-limiting examples of the combination are: a combination of an amine salt type cationic surfactant and a quaternary ammonium salt type cationic surfactant, a combination of a quaternary ammonium salt type cationic surfactant and a heterocyclic type cationic surfactant, or a combination of a heterocyclic type cationic surfactant and a salt type cationic surfactant, and the like.
Preferably, the cationic surfactant comprises any one or a combination of at least two of alkyl quaternary ammonium salts, long chain alkyl primary amine salts, imidazoline salts, or iodonium salts, wherein typical but non-limiting examples of the combination are: a combination of alkyl quaternary ammonium salt and long-chain alkyl primary amine salt, a combination of long-chain alkyl primary amine salt and imidazoline salt, a combination of imidazoline salt and iodine-containing salt, or a combination of alkyl quaternary ammonium salt and iodine-containing salt, etc.
Preferably, the multifunctional auxiliary comprises any one or a combination of at least two of Xingmeiya XMY-95, dow AMP-95 or Isman M12, wherein typical but non-limiting examples of the combination are: a combination of Xingmeiya XMY-95 and Dow AMP-95, a combination of Dow AMP-95 and Isman M12, or a combination of Xingmeiya XMY-95 and Isman M12, etc.
Preferably, the stabilizer comprises any one or a combination of at least two of quaternary ammonium stabilizers, tertiary amine stabilizers, organosilicon compounds or inorganic silicon compounds, wherein typical but non-limiting examples of such combinations are: a combination of a quaternary ammonium salt stabilizer and a tertiary amine stabilizer, a combination of a tertiary amine stabilizer and an organosilicon compound, or a combination of an organosilicon compound and an inorganic silicon compound, and the like.
Preferably, the defoamer comprises a modified silicone defoamer.
Preferably, the film forming aid comprises any one or a combination of at least two of ethylene glycol butyl ether, dodecanol ester, or benzene glycol phenyl ether, wherein typical but non-limiting examples of such combinations are: a combination of ethylene glycol butyl ether and dodecyl alcohol ester, a combination of dodecyl alcohol ester and phenyl glycol phenyl ether, or a combination of ethylene glycol butyl ether and phenyl glycol phenyl ether, etc.
Preferably, the pigment filler comprises any one or a combination of at least two of ground calcium carbonate, nano titanium dioxide, barium sulfate, quartz powder, mica powder or rutile titanium dioxide, wherein typical but non-limiting examples of the combination are: a combination of heavy calcium carbonate and nano titanium dioxide, a combination of nano titanium dioxide and barium sulfate, a combination of barium sulfate and quartz powder, a combination of quartz powder and mica powder, or a combination of mica powder and rutile type titanium dioxide, etc.
Preferably, the hollow glass microspheres include holly hollow glass microspheres HL20 and/or holly hollow glass microspheres HL25.
Another object of the present invention is to provide a method for producing an inorganic paint according to one of the objects, comprising the steps of:
(1) Weighing inorganic oxide nano sol, sequentially adding a dispersing agent and silicon hydrochloric acid under the stirring of first mixing, and continuously adding emulsion to complete the first mixing to obtain a solution A in parts by weight;
(2) Weighing deionized water, sequentially adding cellulose, a dispersing agent, a multifunctional auxiliary agent, a stabilizing agent, a defoaming agent and a film-forming auxiliary agent under the stirring of the second mixing, and continuously adding pigment and filler for third mixing to obtain a solution B in parts by weight;
(3) And (3) adding the solution A in the step (1) into the solution B in the step (2) for fourth mixing and stirring uniformly, and then sequentially adding the aerogel aqueous slurry, the hollow glass microspheres, the short fibers and the defoamer, and continuing stirring for 8-12 min to obtain the inorganic coating.
As a preferable technical scheme of the invention, the first dispersing agent in the step (1) and the second dispersing agent in the step (2) are the same in weight parts.
Preferably, the mass ratio of the first defoamer in step (2) to the second defoamer in step (3) is (1.8-2.2): 1, wherein the mass ratio may be 1.8:1, 1.9:1, 2.0:1, 2.1:1 or 2.2:1, etc., but is not limited to the recited values, and other non-recited values within the range of values are equally applicable.
As a preferred embodiment of the present invention, the first mixing rate in the step (1) is 250-350 r/s, wherein the first mixing rate may be 250r/s, 260r/s, 270r/s, 280r/s, 290r/s, 300r/s, 310r/s, 320r/s, 330r/s, 340r/s or 350r/s, etc., but is not limited to the recited values, and other non-recited values within the range of values are equally applicable.
Preferably, the second mixing rate in step (2) is 250-350 r/s, wherein the rate may be 250r/s, 260r/s, 270r/s, 280r/s, 290r/s, 300r/s, 310r/s, 320r/s, 330r/s, 340r/s or 350r/s, etc., but is not limited to the recited values, and other non-recited values within the range of values are equally applicable.
Preferably, the rate of the third mixing in step (2) is 1400-1600 r/s, wherein the rate may be 1400r/s, 1420r/s, 1440r/s, 1460r/s, 1480r/s, 1500r/s, 1520r/s, 1540r/s, 1560r/s, 1580r/s, 1600r/s, etc., but is not limited to the recited values, and other non-recited values within the range of values are equally applicable.
Preferably, the third mixing time in the step (2) is 10-20 min, wherein the time may be 10min, 11min, 12min, 13min, 14min, 15min, 16min, 17min, 18min, 19min or 20min, etc., but is not limited to the recited values, and other non-recited values within the range of values are equally applicable.
Preferably, the fourth mixing rate in step (3) is 750-850 r/s, wherein the rate may be 750r/s, 760r/s, 770r/s, 780r/s, 790r/s, 800r/s, 810r/s, 820r/s, 830r/s, 840r/s or 850r/s, etc., but is not limited to the recited values, and other non-recited values within this range are equally applicable.
It is a further object of the present invention to provide an application of the inorganic coating according to one of the objects, wherein the inorganic coating is applied to the field of heat insulation boards.
The numerical ranges recited herein include not only the above-listed point values, but also any point values between the above-listed numerical ranges that are not listed, and are limited in space and for the sake of brevity, the present invention is not intended to be exhaustive of the specific point values that the stated ranges include.
Compared with the prior art, the invention has the beneficial effects that:
the inorganic coating prepared by the invention has the functions of heat preservation, heat insulation and fire prevention, and has the advantages of better bonding strength, lower heat conductivity coefficient, environmental protection and energy conservation, wherein the bonding strength is higher than 0.8Mpa, and the heat conductivity coefficient is lower than 0.35.
Detailed Description
The technical scheme of the invention is further described by the following specific embodiments.
Example 1
The embodiment provides an inorganic coating and a preparation method thereof:
the inorganic coating comprises the following components in parts by weight: 70 parts of potassium silicate, 130 parts of silica nano colloid solution, 100 parts of styrene-acrylic emulsion, 200 parts of aerogel aqueous slurry, 3 parts of lignocellulose, 2 parts of hydroxyethyl cellulose, 2 parts of alkyl quaternary ammonium salt, 2 parts of ceramic AMP-951, 2 parts of quaternary ammonium salt, 3 parts of organosilicon defoamer, 6 parts of ethylene glycol butyl ether, 150 parts of heavy calcium carbonate, 50 parts of rutile type titanium dioxide, 20 parts of Zhengzhou holy hollow glass microsphere HL 50 and 231 parts of deionized water.
The preparation method comprises the following steps:
(1) Weighing 130 parts of silicon oxide nano colloid solution, sequentially adding 1 part of alkyl quaternary ammonium salt and 70 parts of potassium silicate under the stirring of 300r/s first mixing, and continuously adding 100 parts of acrylic emulsion to complete the first mixing to obtain solution A in parts by weight;
(2) Weighing 231 parts of deionized water, sequentially adding 2 parts of hydroxyethyl cellulose, 1 part of alkyl quaternary ammonium salt, 1 part of ceramic AMP-95, 2 parts of quaternary ammonium salt, 2 parts of organosilicon defoamer and 6 parts of ethylene glycol butyl ether under the stirring of 300r/s second mixing, and continuously adding 150 parts of heavy calcium carbonate and 50 parts of rutile type titanium dioxide for 1500r/s third mixing for 15min to obtain a solution B in parts by weight;
(3) And (3) adding the solution A in the step (1) into the solution B in the step (2) for fourth mixing and stirring uniformly, sequentially adding 200 parts of aerogel aqueous slurry, 50 parts of Zhengzhou holly hollow glass beads HL20, 3 parts of wood fibers and 1 part of organosilicon defoamer, and continuously stirring for 10min to obtain the inorganic coating.
Example 2
The embodiment provides an inorganic coating and a preparation method thereof:
the inorganic coating comprises the following components in parts by weight: 50 parts of potassium silicate, 150 parts of alumina nano colloid solution, 150 parts of acrylic emulsion, 150 parts of aerogel aqueous slurry, 5 parts of lignocellulose, 2 parts of hydroxyethyl cellulose, 2 parts of long-chain alkyl primary amine salt, 2 parts of Xingmeiya XMY-951, 2 parts of quaternary ammonium salt stabilizer, 3 parts of organosilicon defoamer, 6 parts of dodecanol ester, 150 parts of heavy calcium carbonate, 50 parts of rutile type titanium dioxide, 20 parts of Zhengzhou holy hollow glass microsphere HL20 and 229 parts of deionized water.
The preparation method comprises the following steps:
(1) Weighing 150 parts of alumina nano colloid solution, sequentially adding 1 part of long-chain alkyl primary amine salt and 50 parts of potassium silicate under the stirring of 300r/s first mixing, and continuously adding 150 parts of acrylic emulsion to complete the first mixing to obtain solution A in parts by weight;
(2) Weighing 229 parts of deionized water, sequentially adding 2 parts of hydroxyethyl cellulose, 1 part of long-chain alkyl primary amine salt, 1 part of Xingmeiya XMY-95, 2 parts of quaternary ammonium salt stabilizer, 2 parts of modified organic silicon defoamer and 6 parts of dodecanol ester under the stirring of 300r/s second mixing, and continuously adding 150 parts of heavy calcium carbonate and 50 parts of rutile titanium dioxide for 1500r/s third mixing for 15min to obtain a solution B;
(3) And (3) adding the solution A in the step (1) into the solution B in the step (2) for fourth mixing and stirring uniformly, sequentially adding 150 parts of aerogel aqueous slurry, 50 parts of Zhengzhou holly hollow glass beads HL20, 5 parts of wood fibers and 1 part of organosilicon defoamer, and continuously stirring for 10min to obtain the inorganic coating.
Example 3
The embodiment provides an inorganic coating and a preparation method thereof:
the inorganic coating comprises the following components in parts by weight: 70 parts of potassium silicate, 130 parts of alumina nano colloid solution, 100 parts of acrylic emulsion, 200 parts of aerogel aqueous slurry, 3 parts of lignocellulose, 2 parts of hydroxyethyl cellulose, 2 parts of imidazoline salt, 121 parts of Isman M, 2 parts of tertiary amine stabilizer, 3 parts of organosilicon defoamer, 6 parts of phenyl glycol phenyl ether, 150 parts of heavy calcium carbonate, 50 parts of rutile type titanium dioxide, 50 parts of Zhengzhou holy hollow glass microsphere HL20 and 221 parts of deionized water.
The preparation method comprises the following steps:
(1) Weighing 130 parts of alumina nano colloid solution, sequentially adding 1 part of imidazoline salt and 70 parts of potassium silicate under the stirring of 300r/s first mixing, and continuously adding 100 parts of acrylic emulsion to complete the first mixing to obtain solution A in parts by weight;
(2) Weighing 231 parts of deionized water, sequentially adding 2 parts of hydroxyethyl cellulose, 1 part of imidazoline salt, 1 part of Isman M12, 2 parts of tertiary amine stabilizer, 2 parts of organosilicon defoamer and 6 parts of benzene glycol phenyl ether under the stirring of 300r/s second mixing, and continuously adding 150 parts of heavy calcium carbonate and 50 parts of rutile type titanium dioxide for 1500r/s third mixing for 15min to obtain a solution B in parts by weight;
(3) And (3) adding the solution A in the step (1) into the solution B in the step (2) for fourth mixing and stirring uniformly, sequentially adding 200 parts of aerogel aqueous slurry, 50 parts of Zhengzhou holly hollow glass beads HL20, 3 parts of wood fibers and 1 part of organosilicon defoamer, and continuously stirring for 10min to obtain the inorganic coating.
Example 4
This example was conducted under the same conditions as in example 1 except that 70 parts of potassium silicate and 130 parts of alumina nano-colloid solution were replaced with 90 parts of potassium silicate and 110 parts of alumina nano-colloid solution.
Comparative example 1
This comparative example was conducted under the same conditions as in example 1 except that the amount of the (acrylic emulsion) emulsion added was replaced with 70 parts and the amount of deionized water added was replaced with 261 parts.
Comparative example 2
This comparative example was conducted under the same conditions as in example 1 except that the potassium silicate was replaced with sodium chloride.
Comparative example 3
This comparative example was conducted under the same conditions as in example 1 except that the aerogel aqueous slurry was replaced with hollow glass microspheres and water.
The inorganic paints prepared in examples 1 to 4 and comparative examples 1 to 3 were subjected to tests of adhesive strength, thermal conductivity, flexibility and oxygen index after curing.
Wherein, the test of the bonding strength is carried out according to the specification of GB/T9779-2015;
testing of thermal conductivity: the wet film thickness of 15 x 20cm is 1.5mm, the dry film thickness is about 1.2mm, the coating is observed to be ensured to be even and smooth after curing for 14d under standard test conditions, the accumulated dry film thickness is 25mm, the test is carried out according to the specification of GB/T10295, the heat conductivity coefficient is tested, and the test result is expressed as the average value of 2 test pieces;
the flexibility test is carried out according to JG/T172 7.16;
the oxygen index was measured as specified in GB/T2406.2-2009.
TABLE 1
The best mode of example 1 can be obtained by the table, and example 4 has too much potassium silicate, too little alumina nano colloid solution, poor flexibility of the inorganic coating, reduced adhesive strength and reduced thermal conductivity. The emulsion of comparative example 1 was excessively small in addition amount, and the prepared inorganic coating had poor flexibility, decreased adhesive strength, and decreased thermal conductivity. In comparative example 2, potassium silicate was replaced with sodium chloride, and the prepared inorganic coating had poor flexibility, decreased adhesive strength, and decreased thermal conductivity. Comparative example 3, in which no aerogel aqueous slurry was added, the prepared inorganic coating had poor flexibility, decreased adhesive strength, and decreased thermal conductivity.
While the foregoing is directed to embodiments of the present invention, other and further details of the invention may be had by the present invention, it should be understood that the foregoing description is merely illustrative of the present invention and that no limitations are intended to the scope of the invention, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the invention.
Claims (43)
1. The inorganic coating is characterized by comprising the following preparation raw materials in parts by weight: 50-90 parts of alkali metal silicate, 100-180 parts of inorganic oxide nano sol, 80-150 parts of emulsion, 150-250 parts of aerogel aqueous slurry and 3-5 parts of short fiber;
the mass ratio of the alkali metal silicate to the inorganic oxide nano sol is (0.3-0.6): 1, a step of;
the short fibers are wood fibers.
2. The inorganic paint according to claim 1, wherein the content of the emulsion is 100 to 120 parts by weight.
3. The inorganic paint according to claim 1, wherein the content of the aerogel aqueous slurry is 180 to 220 parts by weight.
4. The inorganic coating of claim 1, wherein the alkali silicate comprises any one of lithium silicate, sodium silicate, or potassium silicate.
5. The inorganic coating of claim 1, wherein the inorganic oxide nanosol comprises any one or a combination of at least two of an alumina nanosol solution, a titania nanosol solution, an iron oxide nanosol solution, a silica nanosol solution, or a zirconia nanosol solution.
6. The inorganic coating of claim 1, wherein the emulsion comprises an acrylic emulsion and/or a styrene-acrylic emulsion.
7. The inorganic coating of claim 1, wherein the raw materials for preparing the inorganic coating further comprise cellulose.
8. The inorganic paint according to claim 7, wherein the cellulose is contained in an amount of 1.5 to 2.5 parts by weight.
9. The inorganic coating according to claim 1, wherein the raw materials for preparing the inorganic coating further comprise a dispersant.
10. The inorganic paint according to claim 9, wherein the content of the dispersant is 1.5 to 2.5 parts by weight.
11. The inorganic coating according to claim 1, wherein the raw materials for preparing the inorganic coating further comprise a multifunctional auxiliary agent.
12. The inorganic paint according to claim 11, wherein the content of the multifunctional auxiliary agent is 0.5 to 1.5 parts by weight.
13. The inorganic paint according to claim 1, wherein the raw materials for preparing the inorganic paint further comprise a stabilizer.
14. The inorganic paint according to claim 13, wherein the content of the stabilizer is 1.5 to 2.5 parts by weight.
15. The inorganic coating of claim 1, wherein the raw materials for preparing the inorganic coating further comprise an antifoaming agent.
16. The inorganic paint according to claim 15, wherein the content of the antifoaming agent is 2.5 to 3.5 parts by weight.
17. The inorganic coating of claim 1, wherein the raw materials for preparing the inorganic coating further comprise a film-forming aid.
18. The inorganic paint according to claim 17, wherein the content of the film-forming auxiliary agent is 5.5 to 6.5 parts by weight.
19. The inorganic paint according to claim 1, wherein the raw materials for preparing the inorganic paint further comprise pigment and filler.
20. The inorganic paint according to claim 19, wherein the pigment filler is contained in an amount of 180 to 220 parts by weight.
21. The inorganic paint of claim 1, wherein the raw materials for preparing the inorganic paint further comprise hollow glass microspheres.
22. The inorganic paint of claim 21, wherein the hollow glass microspheres are present in an amount of 40 to 60 parts by weight.
23. The inorganic coating of claim 1, wherein the raw materials for preparing the inorganic coating further comprise deionized water.
24. The inorganic paint of claim 23, wherein the deionized water is contained in an amount of 180 to 275 parts by weight.
25. The inorganic coating of claim 7, wherein the cellulose comprises hydroxyethyl cellulose.
26. The inorganic coating of claim 9, wherein the dispersant comprises a cationic surfactant.
27. The inorganic coating of claim 26, wherein the cationic surfactant comprises any one or a combination of at least two of an amine salt type cationic surfactant, a quaternary ammonium salt type cationic surfactant, a heterocyclic type cationic surfactant, or a salt type cationic surfactant.
28. The inorganic coating of claim 26, wherein the cationic surfactant comprises any one or a combination of at least two of an alkyl quaternary ammonium salt, a long chain alkyl primary amine salt, an imidazoline salt, or an iodophor salt.
29. The inorganic coating of claim 11, wherein the multifunctional auxiliary agent comprises any one or a combination of at least two of xinmeya XMY-95, dow AMP-95, or isman M12.
30. The inorganic coating of claim 13, wherein the stabilizer comprises any one or a combination of at least two of a quaternary ammonium salt stabilizer, a tertiary amine stabilizer, an organosilicon compound, or an inorganic silicon compound.
31. The inorganic coating of claim 15, wherein the defoamer comprises a modified silicone defoamer.
32. The inorganic coating of claim 17, wherein the film forming aid comprises any one or a combination of at least two of ethylene glycol butyl ether, dodecanol ester, or benzene glycol phenyl ether.
33. The inorganic coating of claim 19, wherein the pigment filler comprises any one or a combination of at least two of ground calcium carbonate, nano titanium dioxide, barium sulfate, quartz powder, mica powder, or rutile titanium dioxide.
34. The inorganic paint of claim 21, wherein the hollow glass microspheres comprise holly hollow glass microspheres HL20 and/or holly hollow glass microspheres HL25 of zheng state.
35. A method of preparing an inorganic coating according to any one of claims 1 to 34, comprising the steps of:
(1) Weighing inorganic oxide nano sol, sequentially adding a first dispersing agent and alkali metal silicate under the stirring of first mixing, and continuously adding emulsion to complete the first mixing to obtain a solution A in parts by weight;
(2) Weighing deionized water, sequentially adding cellulose, a second dispersing agent, a multifunctional auxiliary agent, a stabilizing agent, a first defoaming agent and a film-forming auxiliary agent under the stirring of the second mixing, and continuously adding pigment and filler for third mixing to obtain a solution B in parts by weight;
(3) And (3) adding the solution A in the step (1) into the solution B in the step (2) for fourth mixing and stirring uniformly, and then sequentially adding the aerogel aqueous slurry, the hollow glass microspheres, the short fibers and the second defoamer, and continuing stirring for 8-12 min to obtain the inorganic coating.
36. The method of claim 35, wherein the first dispersant of step (1) is the same as the second dispersant of step (2) in parts by weight.
37. The method according to claim 35, wherein the mass ratio of the first antifoaming agent in step (2) to the second antifoaming agent in step (3) is 1.8 to 2.2:1.
38. The method of claim 35, wherein the first mixing in step (1) is at a rate of 250 to 350r/s.
39. The method of claim 35, wherein the second mixing in step (2) is at a rate of 250 to 350r/s.
40. The method of claim 35, wherein the rate of the third mixing in step (2) is 1400-1600 r/s.
41. The method of claim 35, wherein the third mixing in step (2) is for a period of time ranging from 10 to 20 minutes.
42. The method of claim 35, wherein the fourth mixing in step (3) is at a rate of 750 to 850r/s.
43. The use of an inorganic coating as claimed in any one of claims 1 to 34, wherein the inorganic coating is applied in the field of insulation panels.
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