CN115537047A - Inorganic interior wall heat-insulating flame-retardant coating and preparation method thereof - Google Patents
Inorganic interior wall heat-insulating flame-retardant coating and preparation method thereof Download PDFInfo
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- CN115537047A CN115537047A CN202211228641.3A CN202211228641A CN115537047A CN 115537047 A CN115537047 A CN 115537047A CN 202211228641 A CN202211228641 A CN 202211228641A CN 115537047 A CN115537047 A CN 115537047A
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- 238000000576 coating method Methods 0.000 title claims abstract description 62
- 239000011248 coating agent Substances 0.000 title claims abstract description 59
- 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 title claims abstract description 20
- 239000003063 flame retardant Substances 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000004005 microsphere Substances 0.000 claims abstract description 33
- 239000000839 emulsion Substances 0.000 claims abstract description 32
- 238000009413 insulation Methods 0.000 claims abstract description 28
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims abstract description 23
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 18
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 16
- 239000000126 substance Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 12
- 239000002518 antifoaming agent Substances 0.000 claims description 11
- 239000002270 dispersing agent Substances 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 9
- 239000012752 auxiliary agent Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 239000006185 dispersion Substances 0.000 claims description 4
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000006254 rheological additive Substances 0.000 claims description 3
- 230000000996 additive effect Effects 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000005336 cracking Methods 0.000 abstract description 8
- 239000000945 filler Substances 0.000 abstract description 7
- 238000004321 preservation Methods 0.000 abstract description 7
- 239000000049 pigment Substances 0.000 abstract description 6
- 238000005034 decoration Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000036541 health Effects 0.000 abstract description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 27
- 239000003973 paint Substances 0.000 description 22
- 239000000919 ceramic Substances 0.000 description 16
- 230000000052 comparative effect Effects 0.000 description 11
- 239000004408 titanium dioxide Substances 0.000 description 11
- 239000011324 bead Substances 0.000 description 10
- 239000002562 thickening agent Substances 0.000 description 10
- 239000011521 glass Substances 0.000 description 8
- 239000002994 raw material Substances 0.000 description 8
- 239000002585 base Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000010410 layer Substances 0.000 description 5
- 238000004806 packaging method and process Methods 0.000 description 5
- 230000002265 prevention Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 239000011325 microbead Substances 0.000 description 3
- KCTAWXVAICEBSD-UHFFFAOYSA-N prop-2-enoyloxy prop-2-eneperoxoate Chemical class C=CC(=O)OOOC(=O)C=C KCTAWXVAICEBSD-UHFFFAOYSA-N 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 229920000103 Expandable microsphere Polymers 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 239000004111 Potassium silicate Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229920001519 homopolymer Polymers 0.000 description 2
- 229910052913 potassium silicate Inorganic materials 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000002310 reflectometry Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 229920001909 styrene-acrylic polymer Polymers 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- WYRGOSDNPFGZFG-UHFFFAOYSA-K [bis(2-ethylhexoxy)-oxidophosphaniumyl] dihydrogen phosphate [bis(2-ethylhexoxy)-oxidophosphaniumyl] hydrogen phosphate [bis(2-ethylhexoxy)-oxidophosphaniumyl] phosphate propan-2-olate titanium(4+) Chemical compound [Ti+4].CC(C)[O-].CCCCC(CC)CO[P+]([O-])(OCC(CC)CCCC)OP(O)(O)=O.CCCCC(CC)CO[P+]([O-])(OCC(CC)CCCC)OP(O)([O-])=O.CCCCC(CC)CO[P+]([O-])(OCC(CC)CCCC)OP([O-])([O-])=O WYRGOSDNPFGZFG-UHFFFAOYSA-K 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000008199 coating composition Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 239000008157 edible vegetable oil Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920000747 poly(lactic acid) Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 239000004626 polylactic acid Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000012798 spherical particle Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
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
-
- 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
- C09D5/004—Reflecting paints; Signal paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
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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
- 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
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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
- 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
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- 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)
- Paints Or Removers (AREA)
Abstract
The invention relates to the field of building coatings, in particular to an inorganic interior wall heat-insulating flame-retardant coating and a preparation method thereof. The coating takes silica sol and hydrophobic acrylic emulsion as main film forming substances, and pigments and fillers such as anatase titanium dioxide and reflective heat insulation microspheres are added, so that the purposes of attractive decoration, flame retardance, heat preservation and heat insulation and no cracking of thick coating are achieved, and the pursuit of the market on health and environmental protection is met.
Description
Technical Field
The invention relates to the field of building coatings, in particular to an inorganic interior wall heat-insulating flame-retardant coating and a preparation method thereof.
Background
In recent years, due to the development of the heat insulation technology of the external wall, the heat insulation paint of the building wall is gradually changed from the internal wall to the external wall. The reflective heat-insulating coating achieves the purposes of increasing the surface heat reflectivity and reducing the heat accumulation of the coating by selecting proper base materials, functional pigments and fillers and a production process, so that the heat-insulating and temperature-reducing effects are achieved. Under the same conditions of base materials, the pigment and filler which are important components of the coating play a leading role in the reflective insulation effect.
The hollow glass bead or hollow ceramic bead is a closed-pore thin-wall spherical particle made of oxides containing elements such as silicon, aluminum and the like through a special process, the sphere is usually in a micron-sized size, and air or inert gas with low heat conductivity coefficient is filled in the sphere, so that the hollow glass bead or hollow ceramic bead is low in density and small in heat conductivity coefficient, and can well retard heat energy to be transferred to the interior of an object. In addition, the specific surface area of the glass beads and the ceramic beads is large, the reflectivity of the surface layer material to infrared electromagnetic waves in all directions is extremely high, the reflective and heat-insulating properties of the coating can be greatly improved, and the advantages make the surface layer material become the preferred filler of the reflective and heat-insulating coating.
CN201610294758.X A wear-resistant fireproof modified coating for building interior wall comprises organosilicon modified epoxy acrylate, vinyl acetate homopolymer emulsion, acrylic emulsion, styrene-acrylate copolymer emulsion, silica sol, hollow glass microsphere, etc., wherein organosilicon modified epoxy acrylate is cooperated with film-forming reinforcing substances such as vinyl acetate homopolymer emulsion, acrylic emulsion, styrene-acrylate copolymer emulsion and silica sol, so as to effectively improve wear resistance and fireproof performance of organosilicon modified epoxy acrylate; the added filler is effectively combined with the film forming substance under the action of the auxiliary agent titanate coupling agent NDZ-201, so that the wear resistance and the fire resistance of the film forming substance of the main material are improved; the added auxiliary agent and reinforcing agent can effectively improve the comprehensive performance of the coating.
CN201810699744.5 an environmental protection reflective building insulation heat insulation coating and a preparation method thereof, the raw materials also comprise polyacrylate emulsion, modified ceramic microspheres, silica sol and the like, polylactic acid resin, dispersible rubber powder and titanium dioxide are adopted to be sprayed on the surfaces of the ceramic microspheres after being melted, materials beneficial to light reflection are added, the ceramic microspheres are not easy to damage after the surfaces of the ceramic microspheres are modified, the volume weight stability of an inorganic insulation mortar body is ensured, and the stability of a heat conductivity coefficient is ensured; in addition, the light reflection performance is effectively improved, and the heat preservation performance is effectively improved. The modified ceramic microspheres, the far infrared ceramic powder and the rutile type titanium dioxide are used as main materials for light reflection, so that the coating has a good effect of reflecting light and heat. The inventive concept in this patent document is somewhat similar to the present invention, but the microsphere type is different.
At present, ceramic microspheres are used in the traditional reflective heat-insulation coating, but the ceramic microspheres are fragile in the stirring process, so that part of the ceramic microsphere heat-insulation coating is high in water absorption rate, poor in compatibility of the ceramic microspheres and an adhesive and the like, and further the defects that the overall reflective heat-insulation effect is poor, the performance is unstable, the production process is not easy to control and the like are influenced.
In summary, the water-based inorganic interior wall coating on the market at present has a single function, or only has flame retardance and fire resistance, or only has a heat preservation and heat insulation function, or only can avoid thick coating cracking, and the interior wall coating with the comprehensive effect is lacked.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an inorganic interior wall heat-insulating flame-retardant coating and a preparation method thereof. The coating takes silica sol and hydrophobic acrylic emulsion as main film forming substances, and pigments and fillers such as anatase titanium dioxide and reflective heat insulation microspheres are added, so that the purposes of attractive decoration, flame retardance, heat preservation and heat insulation and no cracking of thick coating are achieved, and the pursuit of the market on health and environmental protection is met.
The invention adopts the following technical scheme:
firstly, the inorganic heat-insulating flame-retardant coating for the inner wall comprises the following components in percentage by mass: silica sol: 20-30%, hydrophobic acrylic emulsion: 5-10%, anatase titanium dioxide: 2-4%, reflective insulation microsphere: 10-20%, film-forming aid: 0.5-1.0 percent of rheological additive, 0.3-1 percent of other additive, and the balance of water.
Preferably, the silica sol is SiO 2 The contents are as follows: 24-28%, pH:9-9.5 of SiO 2 Particle size: 7-15nm.
The silica sol used in the invention has a structure of silicic acid colloid sphere, and has the characteristics of good bonding force, nonflammability and the like.
The hydrophobic acrylic emulsion used in the invention has excellent compatibility and bonding force with the low-thermal-conductivity heat-insulating filler, so that the paint film can provide excellent heat-insulating performance and excellent heat-preserving performanceAdhesion, water resistance, flexibility, no cracking of thick coating, extremely low VOC release and the like. For example: maincote of the Dow chemical TM IC-1002 emulsions.
The reflective heat-insulating microspheres used in the invention are composed of thermoplastic expandable microspheres and silicate layers coated on the surfaces of the expandable microspheres, wherein the silicate layers do not contain boron and sulfur (such as the composite microspheres described in patent application CN 114602396A). The fluidity is good, and the dispersion is easy and uniform; the dyeing property is good, and various application scenes are met; the cutting-resistant and non-brittle glass is suitable for various base materials, and is stable and efficient; low heat conductivity coefficient, moisture and leakage prevention, high temperature and corrosion resistance, high strength, low density, no environmental pollution and the like. Compared with ceramic microspheres and hollow glass microspheres, the shell is made of thermoplastic polymer, so that the shell has resilience, is not easy to break and is easier to mix and grind.
The film forming aid used in the invention is a non-VOC film forming aid. For example: isyman OE-300.
The thickener for the interior wall coating mainly comprises hydroxyethyl cellulose.
The other auxiliary agents used in the invention are selected from one or more of dispersing agents, defoaming agents, antifreezing agents and other common coating auxiliary agents.
The process comprises the following steps: sequentially adding other auxiliary agents and anatase titanium dioxide under stirring of part of water, uniformly dispersing (1200 r/min, dispersing for 10-15 min) to a specified fineness (preferably below 30 microns), adding rheological auxiliary agents (diluted by part of water in advance), and uniformly dispersing at a high speed; then adding the hydrophobic acrylic emulsion, the film-forming assistant and the silica sol under stirring, adding the reflective heat-insulating microspheres after uniformly mixing, and uniformly dispersing (1000 r/min, dispersion for 10-15 minutes).
The invention has the following beneficial effects:
the hydrophobic acrylic emulsion in the coating component has the characteristics of excellent pigment compatibility, high pigment bearing capacity, excellent high film thickness without cracking, excellent flexibility and the like, in particular the Dow chemical MAINCOTE TM The effect of the IC-1002 emulsion is better. Has excellent compatibility with other components such as reflective heat-insulating microspheres, anatase titanium dioxide and the like, so that a paint film has excellent heat insulationThe heat preservation performance, the characteristics of excellent adhesive force, water resistance, flexibility and the like are provided, and VOC and paint film odor are greatly reduced. The reflective heat-insulating microspheres in the coating have the characteristics of light weight and very low heat conductivity coefficient (the heat conductivity coefficient is much lower than that of the hollow microspheres and the ceramic microspheres). Can greatly reduce heat conduction, thereby playing the role of heat insulation and preservation and simultaneously solving the problem that the glass beads and the ceramic beads are easy to break in the production process. The silica sol has stronger penetrability to the base layer and can permeate into the base layer through the capillary, so that the binding power among the components of the coating is further enhanced; and silicon-oxygen bonds are formed among the silica sol particles, the melting point is as high as 1600 ℃, and the purposes of fire prevention and flame retardance can be achieved. In conclusion, the components in the inorganic interior wall heat-insulating flame-retardant coating formula system, especially the hydrophobic acrylic emulsion, the reflective heat-insulating microspheres and the silica sol play an especially important role in the formula, respectively play excellent characteristics, and simultaneously can be cooperated with other components to maximally enhance the functions of the components, so that the coating forms a uniform and compatible whole, and excellent performances such as water resistance, flexibility, heat insulation, fire prevention, flame retardance, thick coating no cracking and the like are realized. The coating is very simple in production process, low in cost, convenient and fast to construct, and construction procedures are reduced. The coating is mainly aimed at the surface coating of indoor wall surfaces, and can be directly coated on indoor base layers without using putty and alkali-resistant primer, so that one construction procedure is saved, and the construction cost is further reduced. Has certain functions of decoration, flame retardation, heat preservation and moisture prevention.
Detailed Description
The present invention will be described in further detail with reference to the following examples, but it should not be construed that the scope of the above subject matter is limited to the following examples. All the technologies realized based on the above contents of the present invention belong to the scope of the present invention. Except as otherwise noted, the following examples were carried out using conventional techniques.
The following examples:
the hydrophobic acrylic emulsion is Dow chemical MAINCOTE TM IC-1002 emulsions.
The non-VOC coalescents were Istmann OE-300.
Examples 1-3, comparative examples 2 and 4 reflective insulating microspheres were prepared according to the protocol of example 1 in CN114602396 a; reflective insulating microspheres in examples 4-5 and comparative example 6 were prepared according to example 13 in CN114602396 a.
Example 1
The inorganic heat-insulating flame-retardant coating for the inner wall comprises the following components in percentage by weight:
number of component | Raw materials | Amount (%) |
1 | Water (W) | 38.4 |
2 | Dispersing agent | 0.4 |
3 | Defoaming agent | 0.2 |
4 | Anatase type titanium dioxide | 4 |
5 | Thickening agent | 0.5 |
6 | Water (W) | 5 |
7 | Hydrophobic acrylic emulsion | 10 |
8 | non-VOC coalescents | 1 |
9 | Propylene glycol | 0.5 |
10 | Silica sol | 20 |
11 | Reflective insulation microsphere | 20 |
The process comprises the following steps: the component 1 is added with 2-4 components in sequence under stirring, and dispersed for 10-15 minutes at 1200 r/min to the specified fineness. After the fineness is qualified, the component 5 (diluted by the component 6 in advance) is added and dispersed at high speed for 10 minutes. Adding the components 7-10 under stirring, uniformly mixing, adding the component 11 at 1000 rpm, dispersing for 10-15 minutes, detecting and packaging.
Example 2
The inorganic heat-insulating flame-retardant coating for the inner wall comprises the following components in percentage by weight:
the process comprises the following steps: the component 1 is added with 2-4 components in sequence under stirring, and dispersed for 10-15 minutes at 1200 r/min to the specified fineness. After the fineness is qualified, the component 5 (diluted by the component 6 in advance) is added and dispersed at high speed for 10 minutes. Adding the components 7-10 under stirring, uniformly mixing, adding the component 11 at 1000 rpm, dispersing for 10-15 minutes, detecting and packaging.
Example 3
The inorganic heat-insulating flame-retardant coating for the inner wall comprises the following components in percentage by weight:
number of component | Raw materials | Amount (%) |
1 | Water (W) | 38.4 |
2 | Dispersing agent | 0.4 |
3 | Defoaming agent | 0.2 |
4 | Anatase type titanium dioxide | 4 |
5 | Thickening agent | 0.5 |
6 | Water (W) | 5 |
7 | Hydrophobic acrylic emulsion | 5 |
8 | non-VOC coalescents | 1 |
9 | Propylene glycol | 0.5 |
10 | Silica sol | 20 |
11 | Reflective insulation microsphere | 10 |
The process comprises the following steps: the component 1 is added with 2-4 components in sequence under stirring, and dispersed for 10-15 minutes at 1200 r/min to the specified fineness. After the fineness is qualified, the component 5 (diluted by the component 6 in advance) is added and dispersed at high speed for 10 minutes. Adding the components 7-10 under stirring, uniformly mixing, adding the component 11 at 1000 rpm, dispersing for 10-15 minutes, detecting and packaging.
Example 4
The inorganic heat-insulating flame-retardant coating for the inner wall comprises the following components in percentage by weight:
number of component | Raw materials | Amount (%) |
1 | Water (W) | 28.4 |
2 | Dispersing agent | 0.4 |
3 | Defoaming agent | 0.2 |
4 | Anatase type titanium dioxide | 4 |
5 | Thickening agent | 0.5 |
6 | Water (W) | 5 |
7 | Hydrophobic acrylic emulsion | 10 |
8 | non-VOC coalescents | 1 |
9 | Propylene glycol | 0.5 |
10 | Silica sol | 30 |
11 | Reflective insulation microsphere | 20 |
The process comprises the following steps: the component 1 is added with 2-4 components in sequence under stirring, and dispersed for 10-15 minutes at 1200 r/min to the specified fineness. After the fineness is qualified, the component 5 (diluted with the component 6 in advance) is added and dispersed at high speed for 10 minutes. Adding the components 7-10 under stirring, uniformly mixing, adding the component 11 at 1000 rpm, dispersing for 10-15 minutes, detecting and packaging.
Example 5
The inorganic heat-insulating flame-retardant coating for the inner wall comprises the following components in percentage by weight:
number of component | Raw materials | Amount (%) |
1 | Water (W) | 43.4 |
2 | Dispersing agent | 0.4 |
3 | Defoaming agent | 0.2 |
4 | Anatase type titanium dioxide | 4 |
5 | Thickening agent | 0.5 |
6 | Water (W) | 2 |
7 | Hydrophobic acrylic emulsion | 8 |
8 | non-VOC coalescents | 1 |
9 | Propylene glycol | 0.5 |
10 | Silica sol | 25 |
11 | Reflective insulation microsphere | 15 |
The process comprises the following steps: the component 1 is added with 2-4 components in sequence under stirring, and dispersed for 10-15 minutes at 1200 r/min to the specified fineness. After the fineness is qualified, the component 5 (diluted with the component 6 in advance) is added and dispersed at high speed for 10 minutes. Adding the components 7-10 under stirring, uniformly mixing, adding the component 11 at 1000 rpm, dispersing for 10-15 minutes, detecting and packaging.
Comparative example 1
An inorganic interior wall coating material, the components and the amount of which are expressed as follows:
serial number | Raw materials | Amount (%) |
1 | Water (I) | 45 |
2 | Dispersing agent | 0.4 |
3 | Defoaming agent | 0.2 |
4 | Anatase type titanium dioxide | 4 |
5 | Thickening agent | 0.5 |
6 | Water (W) | 5 |
7 | Styrene-acrylic emulsion | 5 |
8 | non-VOC coalescents | 0.5 |
9 | Propylene glycol | 0.5 |
10 | Silica sol | 20 |
11 | Hollow glass bead | 15 |
The same preparation process as in example 1 was used.
Comparative example 2
An inorganic interior wall coating material, the components and the amount of which are expressed as follows:
serial number | Raw materials | Amount (%) |
1 | Water (W) | 39.9 |
2 | Dispersing agent | 0.4 |
3 | Defoaming agent | 0.2 |
4 | Anatase type titanium dioxide | 4 |
5 | Thickening agent | 0.5 |
6 | Water (W) | 5 |
7 | Vinyl acetate emulsion | 5 |
8 | non-VOC coalescents | 0.5 |
9 | Propylene glycol | 0.5 |
10 | Potassium silicate | 20 |
11 | Reflective heat insulation micro bead | 20 |
The same preparation process as in example 1 was used.
Comparative example 3
An inorganic interior wall coating material, the components and the dosage of which are expressed as follows:
the same preparation process as in example 1 was used.
Comparative example 4
An inorganic interior wall coating material, the components and the amount of which are expressed as follows:
serial number | Raw materials | Amount (%) |
1 | Water (W) | 39.9 |
2 | Dispersing agent | 0.4 |
3 | Defoaming agent | 0.2 |
4 | Anatase type titanium dioxide | 4 |
5 | Thickening agent | 0.5 |
6 | Water (I) | 5 |
7 | Vinyl acetate emulsion | 5 |
8 | non-VOC coalescents | 0.5 |
9 | Propylene glycol | 0.5 |
10 | Sodium silicate | 20 |
11 | Reflective heat insulation micro bead | 20 |
The same preparation process as in example 1 was used.
Comparative example 5
An inorganic interior wall coating material, the components and the amount of which are expressed as follows:
the same preparation process as in example 1 was used.
Comparative example 6
An inorganic interior wall coating material, the components and the amount of which are expressed as follows:
serial number | Starting materials | Amount (%) |
1 | Water (W) | 39.9 |
2 | Dispersing agent | 0.4 |
3 | Defoaming agent | 0.2 |
4 | Anatase type titanium dioxide | 4 |
5 | Thickening agent | 0.5 |
6 | Water (I) | 5 |
7 | Fluorocarbon emulsion | 5 |
8 | non-VOC coalescents | 0.5 |
9 | Propylene glycol | 0.5 |
10 | Potassium silicate | 20 |
11 | Reflective heat insulation micro bead | 20 |
The same preparation process as in example 1 was used.
Comparative example 7
An inorganic interior wall coating material, the components and the amount of which are expressed as follows:
serial number | Starting materials | Amount (%) |
1 | Water (W) | 45 |
2 | Dispersing agent | 0.4 |
3 | Defoaming agent | 0.2 |
4 | Anatase type titanium dioxide | 4 |
5 | Thickening agent | 0.5 |
6 | Water (W) | 5 |
7 | Styrene-acrylic emulsion | 5 |
8 | non-VOC film forming aids | 0.5 |
9 | Propylene glycol | 0.5 |
10 | Silica sol | 20 |
11 | Floating bead | 15 |
The same preparation process as in example 1 was used.
Comparative example 8
An inorganic interior wall coating material, the components and the amount of which are expressed as follows:
the same preparation process as in example 1 was used.
Test examples
The coatings of the above examples and comparative examples are coated on the inner wall of a building in a thickness of 3mm, and the key performance indexes are detected by the following specific method:
(1) The preparation method of the paint film for testing the thermal conductivity coefficient (refer to the test method of Shanghai Orimun chemical industry):
1) Coating a small amount of edible oil on a black and white paperboard;
2) Preparing paint films on black and white paper by using a film preparing frame (the length is 130mm, the width is 70mm, and the thickness is 2 mm), and preparing 6 blocks in total;
3) After curing for 7 days, the paint film was peeled off from the black and white paper by a blade, and each paint film was cut into two by leveling to obtain 12 paint films for the measurement of thermal conductivity.
(2) Test method of paint film cracking performance:
1) Preparing a paint film on black and white paper by using a film-making frame (the length is 130mm, the width is 70mm, and the thickness is 3 mm);
2) And curing for 14 days, and observing the paint film with naked eyes after the paint film is completely dried. If the paint film has no cracks, judging that the paint film has no abnormity; if the paint film is cracked, the film is judged to be cracked.
(3) And (3) testing the fireproof performance of the paint film:
and (3) burning the completely dried paint film (the paint film for testing the thermal conductivity coefficient) by using a lighter, and observing whether the paint film burns or not by naked eyes. If the paint film does not have the combustion phenomenon, the paint film is judged to be incombustible when meeting open flame; if the film is burnt, the film is judged to be combustible by open fire.
According to the test results, the components in the formula system of the technical scheme of the invention, particularly the hydrophobic acrylic emulsion, the reflective heat-insulating microspheres and the silica sol play an especially important role in the formula, respectively play excellent characteristics, and simultaneously can be cooperated with other components to maximally enhance functions of the components, so that the coating forms a uniform and compatible whole, and excellent performances such as water resistance, flexibility, heat insulation, fire prevention, flame retardance, no cracking of thick coating and the like are realized.
Claims (8)
1. An inorganic interior wall heat-insulating flame-retardant coating is characterized by comprising the following components in percentage by mass: silica sol: 20-30%, hydrophobic acrylic emulsion: 5-10%, anatase titanium dioxide: 2-4%, reflective insulation microspheres: 10-20%, film-forming aid: 0.5-1.0 percent of rheological additive, 0.3-1 percent of other additive, and the balance of water.
2. The inorganic heat-insulating flame-retardant coating for interior walls as claimed in claim 1, wherein the SiO of the silica sol is 2 The content is as follows: 24-28%, pH:9-9.5 of SiO 2 Particle size: 7-15nm.
3. The inorganic interior wall thermal insulation flame retardant coating material of claim 1, wherein the hydrophobic acrylic emulsion is selected from the Dow chemical MAINCOTE TM IC-1002 emulsions.
4. The inorganic interior wall heat-insulating flame-retardant coating as claimed in claim 1, wherein the film-forming assistant is a non-VOC film-forming assistant.
5. The inorganic interior wall thermal insulation flame retardant coating as claimed in claim 1, wherein the other auxiliary agents are selected from one or more of dispersing agents, defoaming agents and antifreezing agents.
6. The preparation process of the inorganic interior wall heat-insulating flame-retardant coating material of claim 1, which is characterized by comprising the following steps: sequentially adding other additives and anatase titanium dioxide under stirring of part of water, uniformly dispersing to a specified fineness, adding a rheological additive, and uniformly dispersing at a high speed; and then adding the hydrophobic acrylic emulsion, the film-forming assistant and the silica sol under stirring, adding the reflective heat-insulating microspheres after uniformly mixing, and uniformly dispersing.
7. The preparation process of the inorganic interior wall heat-insulating flame-retardant coating according to claim 6, wherein the specified fineness is below 30 micrometers.
8. The preparation process of the inorganic interior wall heat-insulating flame-retardant coating according to claim 6, wherein the dispersion is uniform, the specific process is 1000 rpm, and the dispersion is carried out for 10-15 minutes.
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