CN116162372A - Flame-retardant heat-insulating coating - Google Patents
Flame-retardant heat-insulating coating Download PDFInfo
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- CN116162372A CN116162372A CN202310321975.3A CN202310321975A CN116162372A CN 116162372 A CN116162372 A CN 116162372A CN 202310321975 A CN202310321975 A CN 202310321975A CN 116162372 A CN116162372 A CN 116162372A
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- hollow glass
- glass beads
- coated
- flame retardant
- heat
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- 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 78
- 239000003063 flame retardant Substances 0.000 title claims abstract description 78
- 238000000576 coating method Methods 0.000 title claims abstract description 67
- 239000011248 coating agent Substances 0.000 title claims abstract description 60
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- 230000002209 hydrophobic effect Effects 0.000 claims description 33
- 150000003863 ammonium salts Chemical class 0.000 claims description 25
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- 238000000034 method Methods 0.000 claims description 14
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
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- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
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- 239000002518 antifoaming agent Substances 0.000 description 5
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- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical group C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical group [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
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- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
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- CYJRNFFLTBEQSQ-UHFFFAOYSA-N 8-(3-methyl-1-benzothiophen-5-yl)-N-(4-methylsulfonylpyridin-3-yl)quinoxalin-6-amine Chemical compound CS(=O)(=O)C1=C(C=NC=C1)NC=1C=C2N=CC=NC2=C(C=1)C=1C=CC2=C(C(=CS2)C)C=1 CYJRNFFLTBEQSQ-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 description 1
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- 125000003277 amino group Chemical group 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
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- 229920002988 biodegradable polymer Polymers 0.000 description 1
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- 239000006260 foam Substances 0.000 description 1
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- ZXQYGBMAQZUVMI-GCMPRSNUSA-N gamma-cyhalothrin Chemical compound CC1(C)[C@@H](\C=C(/Cl)C(F)(F)F)[C@H]1C(=O)O[C@H](C#N)C1=CC=CC(OC=2C=CC=CC=2)=C1 ZXQYGBMAQZUVMI-GCMPRSNUSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012796 inorganic flame retardant Substances 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
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- 230000003647 oxidation Effects 0.000 description 1
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- 238000011056 performance test Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
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- 235000019832 sodium triphosphate Nutrition 0.000 description 1
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- 230000003068 static effect Effects 0.000 description 1
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- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- 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
- C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
- C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
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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
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- 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
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
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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
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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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
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/26—Silicon- containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/22—Expanded, porous or hollow particles
- C08K7/24—Expanded, porous or hollow particles inorganic
- C08K7/28—Glass
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K9/00—Use of pretreated ingredients
- C08K9/10—Encapsulated ingredients
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)
- Chemical Kinetics & Catalysis (AREA)
- Paints Or Removers (AREA)
Abstract
The invention relates to a flame-retardant heat-insulating coating, and belongs to the technical field of heat-insulating coatings. The flame-retardant heat-insulating coating is mainly prepared from water, emulsion, aerogel, flame retardant coated hollow glass beads and an auxiliary agent; the mass ratio of the emulsion to the aerogel to the hollow glass bead coated by the flame retardant is 20-50:3-10:30-50. According to the flame-retardant heat-insulating coating disclosed by the invention, the hollow glass beads are coated with aerogel and a flame retardant as heat-insulating main materials, the flame retardant coated on the surfaces of the hollow glass beads is used for coating the hollow glass beads with the flame retardant, so that the wall thickness of the hollow glass beads is increased, the compression resistance of the hollow glass beads in the use of the coating is improved, the breakage rate of the hollow glass beads in the coating and the coating is reduced, and further, the attenuation of the heat-insulating performance of the coating is avoided; and the flame retardant is coated on the surfaces of the hollow glass microspheres and added into the paint, so that the contact surface of the flame retardant in the paint can be enlarged, and the flame retardance of the paint can be improved.
Description
Technical Field
The invention relates to a flame-retardant heat-insulating coating, and belongs to the technical field of heat-insulating coatings.
Background
In the prior art, traditional heat insulation materials such as rock wool felt, inorganic heat insulation mortar, polyphenyl foam boards and the like are widely used, but the use of the traditional heat insulation materials is required to reach a certain thickness to achieve good heat insulation performance, the construction is time-consuming and labor-consuming, the construction quality determines that the waterproof performance is poor, and the heat insulation layer is easy to crack and permeate water when sunlight irradiates outdoors, so that the corrosion resistance of the metal surface is directly affected. The heat-insulating layer made of the organic polymer foam material has poor flame resistance and certain fire hazard. For example, the traditional heat insulation materials are installed on the surfaces of large oil tanks and gas tanks of factories, the procedures are complex, the cost is high, and the fire hazard is large. So that new heat insulating materials are developed to replace the traditional heat insulating materials at home and abroad in recent years.
The heat insulating paint is one kind of heat insulating material with low heat conducting coefficient and high heat resistance. The hollow microsphere is used as a main filler to develop the light and thin nano heat-insulating coating, which becomes a research hot spot in the field. As in the prior art, application publication No. CN108329780a discloses a waterproof heat-insulating exterior wall coating, which mainly comprises the following components: 22-42 parts of silicone-acrylic emulsion and nano SiO 2 12-18 parts of aerogel, 5-12 parts of aluminum silicate fiber, 8-15 parts of hollow glass microsphere, 4-9 parts of pigment and filler, 3-7 parts of expanded vermiculite, 1.3-2.8 parts of dispersing agent, 0.6-1.4 parts of leveling agent, 1.6-3.8 parts of film forming additive and 13-18 parts of deionized water. The novel heat-insulating paint adopts nano SiO 2 Aerogel, hollow glass bead and expanded vermiculite are added into the coating as heat preservation and insulation materials, so that the heat preservation and insulation performance of the coating can be improved, but because the hollow glass bead is hollow, the wall is thin, the compressive capacity is small, the coating is easy to break in the actual coating construction (such as spraying construction) and the subsequent coating use process, the heat preservation performance of the coating is attenuated, and the use requirement is difficult to meet.
Disclosure of Invention
The invention aims to provide a flame-retardant heat-insulating coating, which can solve the problem that the heat-insulating performance of a coating is easy to be attenuated by the existing heat-insulating coating.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the flame-retardant heat-insulating coating is mainly prepared from water, emulsion, aerogel, flame retardant coated hollow glass beads and an auxiliary agent; the mass ratio of the emulsion to the aerogel to the hollow glass bead coated by the flame retardant is 20-50:3-10:30-50.
According to the flame-retardant heat-insulating coating disclosed by the invention, the hollow glass beads are coated with aerogel and flame retardant as heat-insulating main materials, the flame retardant coated on the surfaces of the hollow glass beads in the hollow glass beads (namely flame-retardant heat-insulating filler) is utilized, so that the wall thickness of the hollow glass beads is increased, the compression resistance of the hollow glass beads in the use of the coating is improved, the breakage rate of the hollow glass beads in the coating and the coating is reduced, and further, the attenuation of the heat-insulating performance of the coating is avoided; and the flame retardant is coated on the surfaces of the hollow glass microspheres and added into the paint, so that the contact surface of the flame retardant in the paint can be enlarged, and the flame retardance of the paint can be improved. In addition, the aerogel and the flame retardant are used as heat preservation main materials, so that the heat preservation performance of the paint is improved, the PVC value of the paint is reduced, and the cost performance is improved.
The aerogel is a porous amorphous solid material with a three-dimensional network structure, which is formed by gathering nano-scale colloid particles, and the pores are filled with gaseous medium, so that the aerogel has the characteristics of good light transmittance, good sound absorption, low-temperature infrared radiation rate, good hydrophobicity and the like, and can be used as a heat insulation material of heat insulation flame retardant coating, so that the energy loss caused by heat convection and heat conduction can be reduced, and the heat insulation performance is improved.
Further, the normal temperature heat conductivity coefficient of the aerogel is less than or equal to 0.018W/(m.K), and the bulk density is 40-60 kg/m 3 The aperture is 20-50 nm, and the grain diameter is 40-60 mu m. The detection standard of the normal temperature heat conductivity coefficient is ISO22007-2-2008, the detection standard of the bulk density is GB/T5211.4-1985, the aperture is determined by nitrogen adsorption and desorption, and the detection standard of the particle size is GB/T19077-2016. Further, the specific surface area of the aerogel is 600-800 m 2 And/g, the porosity is 90-95%. The specific surface area is the detection standard GB/T19587-2004, and the porosity is obtained by back-pushing the skeleton density.
Further, the aerogel is a silica aerogel.
Compared with the condition that the hollow glass beads and the flame retardant are independently used, the hollow glass beads are coated with the flame retardant, so that gaps among the powder can be reduced, the volume of the powder is reduced, the PVC value is reduced, the contact area of the flame retardant is increased, and the flame retardance of the coating is improved; meanwhile, due to the reduction of the volume of the filler, the same emulsion dosage can be more compact for coating the powder, and the performances of adhesive force, water resistance and the like of the coating are effectively improved. Pigment Volume Concentration (PVC) refers to the percentage of the volume of pigment and filler in the paint to the total volume of all non-volatile (solid components of resin, emulsion and pigment, filler) in the formulation, i.e. PVC (%) = [ (aerogel + flame retardant coated hollow glass microspheres)/(aerogel + flame retardant coated hollow glass microspheres + emulsion) ]x100.
In order to further improve the flame retardance, heat preservation and compression resistance of the heat preservation coating, the hollow glass beads coated with the flame retardant are hydrophobic modified ammonium polyphosphate coated hollow glass beads and/or polyphosphate coated hollow glass beads. The hydrophobically modified ammonium polyphosphate and the polyphosphate coated on the surfaces of the hollow glass beads do not generate harmful substances at high temperature, are environment-friendly and pollution-free, and have wide raw material sources and convenient use.
In order to further improve the compression resistance and better prevent the thermal insulation performance from being attenuated on the basis of optimizing the thermal insulation and flame retardance, the hollow glass beads coated with the flame retardant are hydrophobic modified ammonium polyphosphate coated hollow glass beads and polyphosphate coated hollow glass beads; the mass ratio of the hydrophobic modified ammonium polyphosphate coated hollow glass beads to the polyphosphate coated hollow glass beads is 1-4:1-3, for example, 1:1.
Further, the hydrophobic modified ammonium polyphosphate coated hollow glass bead is obtained by carrying out hydrophobic modification on an ammonium polyphosphate II coated hollow glass bead. The ammonium polyphosphate II coated hollow glass beads are obtained by converting ammonium polyphosphate I in the ammonium polyphosphate I coated hollow glass beads into ammonium polyphosphate II. The ammonium polyphosphate II is an insoluble polymer without branching chains, is an efficient inorganic flame retardant, and has the advantages of good heat stability and chemical stability, low water solubility and moisture absorption, volatility in the application process, no corrosive gas generation, lasting effect, good safety performance and the like. The hollow glass beads coated with the ammonium polyphosphate II are subjected to hydrophobic modification, so that the wall thickness of the hollow glass beads of the heat-insulating paint cannot be greatly enhanced, and the compression resistance of the hollow glass beads in the use of the paint is improved; the contact surface of the flame retardant in the paint can be enlarged, and the flame retardance of the paint can be improved; the dosage of the emulsion is reduced, and the heat preservation performance of the coating is improved.
Although the ammonium polyphosphate I coated hollow glass beads are insoluble in water, the molecular chain of the ammonium polyphosphate contains hydrophilic amino groups, so that the ammonium polyphosphate has hygroscopicity, and the ammonium polyphosphate I in the ammonium polyphosphate I coated hollow glass beads is subjected to hydrophobic modification after being converted into the ammonium polyphosphate II. The ammonium polyphosphate I coated hollow glass microsphere is prepared by adopting a non-uniform nucleation method.
Further, the preparation method of the ammonium polyphosphate I coated hollow glass microsphere comprises the following steps: dispersing the hollow glass beads in an ammonium polyphosphate I solution, performing solid-liquid separation after aging, and calcining the separated solid to obtain the ammonium polyphosphate I coated hollow glass beads. The ammonium polyphosphate I solution is obtained by dispersing ammonium polyphosphate I and a dispersing agent in a solvent, and the solvent is preferably a mixture of water and an alcohol solvent; the alcohol solvent is preferably ethanol. The volume ratio of water to alcohol solvent in the solvent is 8-10:1, for example 9:1. The mass of the dispersant is 3-5% of the total mass of the ammonium polyphosphate I and the solvent, for example, 4%. The dispersant is preferably cetyltrimethylammonium bromide. The mass ratio of the ammonium polyphosphate I to the dispersing agent is 12-18:85, for example 15:85. The mass ratio of the hollow glass beads to the ammonium polyphosphate solution is 8-12:100, for example 10:100. The calcination is that the calcination is carried out for 3 to 5 hours at 180 to 230 ℃ and then for 3 to 5 hours at 280 to 330 ℃; for example, calcination is carried out at 200℃for 4 hours and then at 300℃for 2 hours. Organic matters such as solvent, dispersing agent and the like introduced in the preparation process can be effectively removed through calcination.
Further, the hollow glass bead coated with the ammonium polyphosphate II is prepared by adopting a method comprising the following steps of: the hollow glass microballoon coated with the ammonium polyphosphate I is firstly insulated for 2 to 3 hours at 160 to 180 ℃ in the mixed atmosphere, then is insulated for 2 to 3 hours at 270 to 290 ℃, and is cooled. The method can convert the ammonium polyphosphate I into high ammonium polyphosphate with the polymerization degree more than or equal to 1000, namely II-type ammonium polyphosphate. For example, the hollow glass bead coated with the ammonium polyphosphate I is subjected to heat preservation at 170 ℃ for 2.5 hours and then subjected to heat preservation at 280 ℃ for 2.5 hours in a mixed atmosphere. The mixed atmosphere is a mixed atmosphere of ammonia and steam, and the steam and the ammonia in the mixed atmosphere can accelerate the conversion of the ammonium polyphosphate from the type I to the type II. Because the ammonium polyphosphate has more crystal forms and is easy to mutually convert, the reaction is always in the environment of forming the II-type ammonium polyphosphate by controlling the pressure of water vapor and ammonia gas, and the purity of the converted II-type ammonium polyphosphate can be improved. In order to form high purity type II ammonium polyphosphate, further, the pressure of the mixed atmosphere is 100 to 120kPa, for example 110kPa; the pressure of the water vapor is 25 to 35kPa, for example 30kPa; the pressure of the ammonia gas is 75 to 85kPa, for example 80kPa. In order to avoid that ammonia in the mixed gas is dissolved in water to form ammonia water into byproducts at a lower temperature, thereby affecting the purity and performance of the converted II-type ammonium polyphosphate, the cooling is to cool the system to 90-110 ℃, preferably to 100-110 ℃, for example to 100 ℃, and then to cool the mixed gas to room temperature after the mixed gas is closed.
Further, the method for hydrophobically modifying comprises the steps of: and (3) carrying out heat preservation treatment on the mixture of the ammonium polyphosphate II coated hollow glass beads, methyl hydrogen silicone oil, gas phase hydrophobic white carbon black and water, and then cooling and drying. And drying to obtain the hydrophobic modified ammonium polyphosphate II coated hollow glass microsphere. In the heat preservation treatment process, methyl hydrogen-containing silicone oil is coated on the surfaces of the hollow glass beads coated with the ammonium polyphosphate II through chemical crosslinking, and the gas-phase hydrophobic white carbon black plays a role in supplementing and enhancing the hydrophobic performance through filling pores of the surfaces of the hollow glass beads coated with the uncrosslinked ammonium polyphosphate II. The temperature of the heat-insulating treatment is 30 to 70 ℃, for example 50 ℃. The time of the heat-preserving treatment is 1 to 3 hours, for example, 2 hours. The mass ratio of the ammonium polyphosphate II coated hollow glass beads, the methyl hydrogen-containing silicone oil and the gas phase hydrophobic white carbon black is 100:2-3:1-2, for example, 100:2.5:1.5. The mass ratio of the ammonium polyphosphate II coated hollow glass beads to the water is 100:8-12, for example, 100:10.
Further, the polyphosphate coated hollow glass microsphere is prepared by a liquid coating method. Still further, the liquid coating method includes the steps of: and uniformly mixing the hollow glass microsphere suspension with the polyphosphate solution, carrying out solid-liquid separation, and drying the obtained solid. The solid-liquid separation of the system obtained by uniformly mixing the hollow glass microsphere suspension and the polyphosphate solution is that the obtained system is subjected to heat preservation and precipitation for 1-3 hours at 50-60 ℃, for example, heat preservation and precipitation for 2 hours at 55 ℃, and then the system is cooled to room temperature and then separated to remove liquid. The mixing is that the hollow glass microsphere suspension and the polyphosphate solution are mixed and stirred at 50-60 ℃, for example, at 55 ℃. The stirring and mixing are carried out for 2 hours at 200 rpm and then for 1 hour at 60 rpm.
Further, the polyphosphate solution is obtained by dissolving polyphosphate in butanol. The mass ratio of the polyphosphate to butanol is 10:4-6, for example, 10:5. Further, the hollow glass microsphere suspension is formed by dispersing hollow glass microspheres in water; the mass ratio of the hollow glass beads to the water is 9-11:100, for example, 10:100. Further, the mass ratio of the hollow glass microsphere suspension to the polyphosphate solution is 110:12-18, for example 110:15.
The polyphosphate is a biodegradable polymer with good biocompatibility and relatively easy modification and functionalization of the structure, has relatively high heat resistance, good water resistance, self-extinguishing property, high phosphorus content and excellent flame retardant property, and can greatly enhance the wall thickness of the hollow glass bead of the heat-insulating paint by coating the hollow glass bead with liquid and improve the compression resistance of the hollow glass bead in the use of the paint; the contact surface of the flame retardant in the paint is enlarged, so that the flame retardance of the paint is improved; the dosage of the emulsion is reduced, and the heat preservation performance of the coating is improved. Further, the polyphosphate is triphenyl phosphate.
Further, the emulsion is one or any combination of organic silicon emulsion, polyurethane emulsion and fluorocarbon emulsion. The organosilicon emulsion has high temperature resistance, oxidation resistance and weather resistance, and can improve the temperature resistance limit and weather resistance of the coating. The emulsion is preferably an aqueous emulsion with a solid content of 35-50%. Further, the organic silicon emulsion is an aqueous organic silicon emulsion, and the polyurethane emulsion is an aqueous polyurethane emulsion; the fluorocarbon emulsion is an aqueous fluorocarbon emulsion.
It is understood that the auxiliary agent in the flame-retardant heat-insulating coating is a common auxiliary agent in the coating field. Further, the auxiliary agent is one or any combination of dispersing agent, wetting agent, defoaming agent, bactericide, antifreezing agent, thickening agent and film forming auxiliary agent.
Further, the mass ratio of the auxiliary agent to the emulsion is 0.5-5:20-50, and the mass ratio of water to the emulsion is 7-20:20-50.
The preparation method of the flame-retardant heat-insulating coating comprises the following steps: and (5) taking water, emulsion, aerogel, the hollow glass beads coated by the flame retardant and the auxiliary agent, and uniformly mixing to obtain the flame retardant.
Detailed Description
The technical scheme of the invention is further described below with reference to the specific embodiments.
The hydrophobically modified ammonium polyphosphate II coated hollow glass microspheres employed in examples 1-5 were prepared by a non-uniform nucleation method comprising the specific steps of:
(1) 15 parts of ammonium polyphosphate (oligomer) with the molecular weight of 309.5 is taken and added into 85 parts of mixed aqueous solution of distilled water and absolute ethyl alcohol (the volume ratio of the distilled water to the absolute ethyl alcohol is 9:1) for full soaking, cetyl trimethyl ammonium bromide dispersant accounting for 4% of the total mass of the system is added, and the mixture is stirred for 60 minutes at a stirring speed of 500 revolutions per minute, so as to obtain ammonium polyphosphate I solution.
(2) Adding 10 parts of hollow glass beads into 100 parts of ammonium polyphosphate I solution, stirring at a stirring speed of 60 revolutions per minute for 60 minutes, and simultaneously carrying out ultrasonic vibration; filtering after ageing, transferring the obtained solid into a high-temperature resistant container, placing the high-temperature resistant container into a high-temperature resistance furnace for calcination, calcining for 4 hours at the calcination temperature of 200 ℃, heating to 300 ℃ for calcination for 2 hours, discharging from the furnace, and naturally cooling to obtain the ammonium polyphosphate I coated hollow glass microsphere.
(3) 100 parts of the hollow glass microsphere coated by the ammonium polyphosphate I are placed in a microwave tube furnace (with stirring equipment) for 20 revolutions per minute, a mixture of ammonia and water vapor (the pressure is 110kPa, the pressure of the water vapor is 80kPa, the pressure of the ammonia is 30 kPa) is continuously introduced into the reactor of the microwave tube furnace at the temperature of 100 ℃ of the microwave tube furnace, then the temperature of the microwave tube furnace is raised to 170 ℃ and kept for 2.5 hours under stirring, after the heat preservation time is up, the temperature of the microwave tube furnace is raised to 280 ℃ and kept for 2.5 hours under stirring, then the temperature is reduced and cooled to 100 ℃, the atmosphere is closed, and the cooling is continued to the room temperature, so that the hollow glass microsphere coated by the ammonium polyphosphate II is obtained.
(4) Methyl hydrogen silicone oil, gas phase hydrophobic white carbon black hydrophobic modification: and (3) mixing 100 parts of ammonium polyphosphate II coated hollow glass beads, 2.5 parts of methyl hydrogen-containing silicone oil, 1.5 parts of gas-phase hydrophobic white carbon black and 50 parts of water uniformly, placing the mixture in a vacuum drying oven, preserving heat for 2 hours at 50 ℃, cooling the mixture to room temperature, and drying the obtained solid to obtain the hydrophobic modified ammonium polyphosphate II coated hollow glass beads.
The polyphosphate coated hollow glass microsphere is prepared by adopting a liquid coating method, and specifically comprises the following steps:
1) 10 parts of polyphosphate is dried and crushed, and then added into 5 parts of butanol for full soaking and dissolution, so as to obtain a polyphosphate solution; the adopted polyphosphate tripolyphosphate is specifically FR-TPP (triphenyl phosphate) of Star original chemical Co., dongguan City;
2) Adding 10 parts of hollow glass beads into 100 parts of distilled water, and uniformly stirring to obtain a hollow glass bead suspension;
adding the obtained hollow glass microsphere suspension into a constant-temperature water bath (water bath temperature is 55 ℃) with a homogenizing disperser while stirring, then keeping the water bath temperature at 55 ℃, stirring the system at a stirring speed of 200 revolutions per minute for 2 hours, stirring the system at a stirring speed of 60 revolutions per minute for 60 minutes, preserving heat at 55 ℃ for 2 hours, precipitating, cooling to room temperature, filtering, washing the obtained solid, vibrating for 1 hour with a vibrating screen to crush and disperse, and drying at a temperature of 40 ℃ in an oven to obtain the polyphosphate coated hollow glass microsphere.
The aerogel powder used in examples 1 to 5 and comparative example was silica aerogel powder, specifically AG-D silica aerogel powder of Shenzhen midgel technology Co., ltd, and the normal temperature heat conductivity coefficient of the silica aerogel was not more than 0.018W/(m.K) and the bulk density was 40 to 60kg/m 3 Pore diameter of 20-50 nm, particle diameter of 50 μm and specific surface area of 600-800 m 2 And/g, the porosity is 90-95%.
The fluorocarbon emulsion used in examples 1-5 and comparative example was ZT-9615 aqueous fluorocarbon emulsion of Jiangsu Zhi Tai technology Co., ltd., the organosilicon emulsion was AH-071 aqueous high temperature resistant pure silicone resin emulsion of Shanghai protection technology Co., ltd., and the polyurethane emulsion was F0410 aqueous polyurethane emulsion of Shenzhen Jitian chemical Co., ltd.
The auxiliaries used in examples 1 to 5 and comparative example are all the same, and are a combination of a dispersant, a wetting agent, a defoaming agent, a film forming auxiliary, a bactericide, an antifreezing agent and a thickening agent, wherein the dispersant is BYK-163 dispersant of Pick in Germany, the wetting agent is PE-100 wetting agent of Corning in Germany, the defoaming agent is NXZ defoaming agent of Nopuiday in Japan, the film forming auxiliary is alcohol ester twelve of Islaman, the bactericide is MERGALK14 of Trojan, the antifreezing agent is propylene glycol of Dow, and the thickening agent is RM-8W of Dow; the mass ratio of the dispersing agent, the wetting agent, the defoaming agent, the film forming auxiliary agent, the bactericide, the antifreezing agent and the thickening agent is 3:1:5:5:3:7:5.
Example 1
The flame-retardant heat-insulating coating is prepared from the following raw materials in parts by weight: 11.5 parts of water, 50 parts of emulsion, 3 parts of aerogel, 35 parts of flame retardant coated hollow glass beads and 0.5 part of auxiliary agent.
Wherein the emulsion is organic silicon emulsion with solid content of 50%; the hollow glass beads coated with the flame retardant are hydrophobic modified ammonium polyphosphate II coated hollow glass beads and polyphosphate coated hollow glass beads, and the mass ratio of the hydrophobic modified ammonium polyphosphate II coated hollow glass beads to the polyphosphate coated hollow glass beads is 3:2.
Example 2
The flame-retardant heat-insulating coating is prepared from the following raw materials in parts by weight: 10 parts of water, 40 parts of emulsion, 7 parts of aerogel, 40 parts of flame retardant coated hollow glass beads and 3 parts of auxiliary agent.
Wherein the emulsion is polyurethane emulsion with 35% of solid content; the hollow glass beads coated with the flame retardant are hydrophobic modified ammonium polyphosphate II coated hollow glass beads and polyphosphate coated hollow glass beads, and the mass ratio of the hydrophobic modified ammonium polyphosphate II coated hollow glass beads to the polyphosphate coated hollow glass beads is 3:1.
Example 3
The flame-retardant heat-insulating coating is prepared from the following raw materials in parts by weight: 25 parts of water, 35 parts of emulsion, 5 parts of aerogel, 30 parts of flame retardant coated hollow glass beads and 5 parts of auxiliary agent.
Wherein the emulsion is fluorocarbon emulsion, and the solid content is 48%; the hollow glass beads coated with the flame retardant are hydrophobic modified ammonium polyphosphate II coated hollow glass beads and polyphosphate coated hollow glass beads, and the mass ratio of the hydrophobic modified ammonium polyphosphate II coated hollow glass beads to the polyphosphate coated hollow glass beads is 2:1.
Example 4
The flame-retardant heat-insulating coating is prepared from the following raw materials in parts by weight: 16.5 parts of water, 20 parts of emulsion, 10 parts of aerogel, 50 parts of flame retardant coated hollow glass beads and 3.5 parts of auxiliary agent.
Wherein the emulsion is polyurethane emulsion with 35% of solid content; the hollow glass beads coated with the flame retardant are hydrophobic modified ammonium polyphosphate II coated hollow glass beads and polyphosphate coated hollow glass beads, and the mass ratio of the hydrophobic modified ammonium polyphosphate II coated hollow glass beads to the polyphosphate coated hollow glass beads is 1:1.
Example 5
The flame-retardant heat-insulating coating is prepared from the following raw materials in parts by weight: 13 parts of water, 45 parts of emulsion, 5 parts of aerogel, 35 parts of flame retardant coated hollow glass beads and 2 parts of auxiliary agent.
Wherein the emulsion is organic silicon emulsion with solid content of 50%; the hollow glass beads coated with the flame retardant are hydrophobic modified ammonium polyphosphate II coated hollow glass beads and polyphosphate coated hollow glass beads, and the mass ratio of the hydrophobic modified ammonium polyphosphate II coated hollow glass beads to the polyphosphate coated hollow glass beads is 4:3.
Comparative example
The flame-retardant heat-insulating coating of the comparative example is prepared from the following raw materials in parts by weight: 13 parts of water, 45 parts of emulsion, 5 parts of aerogel, 10 parts of hollow glass beads, 25 parts of flame retardant and 2 parts of auxiliary agent.
Wherein the emulsion is organic silicon emulsion with solid content of 50%; the filler is hollow glass beads, the flame retardant is II-type ammonium polyphosphate (the polymerization degree is more than or equal to 1000) and phosphate, and the mass ratio of the ammonium polyphosphate to the phosphate is 4:3; the polyphosphate used was FR-TPP (triphenyl phosphate) from Dongguan Star chemical Co., ltd.
When the flame-retardant heat-insulating coating of the embodiment and the comparative example is prepared, the corresponding flame-retardant heat-insulating coating is obtained by uniformly mixing the raw materials in the formula amount.
Experimental example
1) According to JCT2285-2014 (air pressure resistance test industry standard) gas isostatic pressure test, compression strength test was performed using gas as a pressure transmission medium, and the densities of the hydrophobically modified ammonium polyphosphate II coated hollow glass beads (1 #), the polyphosphate coated hollow glass beads (2 #) and the hollow glass beads employed in the examples before and after compression were measured, and then the compression strength was calculated by:
N f ＝[P G *(P 2 -P 1 )]/[P 2 *(P G -P 1 )]
N f : under certain constant static pressure, the destroyed hollow micro-beads occupy the volume percentage of the total hollow micro-beads;
P 1 : particle density in g/cm of hollow glass beads before gas compression 3 ；
P 2 : particle density of hollow glass beads after gas compression in g/cm 3 ；
P G : density of hollow glass microsphere shell, unit g/cm 3 。
In addition, the hollow glass bead coated by the hydrophobic modified ammonium polyphosphate II and the hollow glass bead coated by the polyphosphate are subjected to powder wall thickness and particle size measurement test by using a hollow bead wall thickness calculation formula method and a laser particle sizer.
The results are shown in Table 1.
TABLE 1 compression resistance test results
| 1# | 2# | Hollow glass bead | |
| Wall thickness of powder | 17μm | 20μm | 2μm |
| Powder particle size μm | 70 | 75 | 30 |
| Compressive strength (MPa) | 23 | 25 | 4 |
As can be seen from the data in table 1: the hollow glass beads are coated by the hydrophobically modified ammonium polyphosphate II and the hollow glass beads are coated by the polyphosphate, so that the compressive resistance of the hollow glass beads is greatly improved, and the weakening of the heat insulation performance of the coating can be reduced.
2) Flame retardance and heat conductivity coefficient performances of the flame retardant and heat insulating coatings of examples 1 to 5 and comparative examples were respectively tested, flame retardance was tested according to GB8624-2012 classification of combustion performance of building materials and products, heat conductivity coefficient was tested according to GB/T3651-2008 standard of measurement method of high temperature heat conductivity coefficient of metals, and test results are shown in Table 2. According to the calculation formula of the PVC value of the paint: namely, PVC (%) = [ (aerogel+flame retardant coated hollow glass bead)/(aerogel+flame retardant coated hollow glass bead+emulsion) ]100, and the PVC value of the coating was calculated.
TABLE 2 results of Performance test of thermal insulation coatings of examples 1-5
As can be seen from the data in table 2: the flame retardant efficiency of the flame retardant can be improved, the PVC value of the paint is reduced, the heat insulation performance and adhesive force of the paint are improved, meanwhile, the problem that the actual heat insulation effect is inconsistent with design due to the broken hollow glass beads in the spraying process is also reduced in the construction process, and the consistency of the heat insulation paint performance and the construction stability are ensured.
Claims (10)
1. A flame-retardant heat-insulating coating is characterized in that: the hollow glass microsphere is mainly prepared from water, emulsion, aerogel, flame retardant coated hollow glass microsphere and an auxiliary agent; the mass ratio of the emulsion to the aerogel to the hollow glass bead coated by the flame retardant is 20-50:3-10:30-50.
2. The flame retardant and heat insulating coating according to claim 1, wherein: the aerogel isThe normal temperature heat conductivity coefficient is less than or equal to 0.018W/(m.K), and the bulk density is 40-60 kg/m 3 The aperture is 20-50 nm, and the grain diameter is 40-60 mu m.
3. The flame retardant and heat insulating coating according to claim 1, wherein: the aerogel is a silica aerogel.
4. The flame retardant and heat insulating coating according to claim 1, wherein: the flame retardant coated hollow glass beads are hydrophobic modified ammonium polyphosphate coated hollow glass beads and/or polyphosphate coated hollow glass beads.
5. The flame retardant and heat insulating coating according to claim 4, wherein: the flame retardant coated hollow glass beads are hydrophobic modified ammonium polyphosphate coated hollow glass beads and polyphosphate coated hollow glass beads; the mass ratio of the hydrophobic modified ammonium polyphosphate coated hollow glass beads to the polyphosphate coated hollow glass beads is 1-4:1-3.
6. The flame retardant and heat insulating coating according to claim 4 or 5, wherein: the hydrophobic modified ammonium polyphosphate coated hollow glass bead is obtained by carrying out hydrophobic modification on an ammonium polyphosphate II coated hollow glass bead.
7. The flame retardant and heat insulating coating according to claim 6, wherein: the method for converting the ammonium polyphosphate I coated hollow glass beads into the ammonium polyphosphate II coated hollow glass beads comprises the following steps: the hollow glass bead coated with the ammonium polyphosphate I is firstly insulated for 2 to 3 hours at 160 to 180 ℃ in the mixed atmosphere, then is insulated for 2 to 3 hours at 270 to 290 ℃, and is cooled; the mixed atmosphere is a mixed atmosphere of ammonia and steam.
8. The flame retardant and heat insulating coating according to claim 6, wherein: the method for hydrophobically modifying comprises the following steps: and (3) carrying out heat preservation treatment on the mixture of the ammonium polyphosphate II coated hollow glass beads, methyl hydrogen silicone oil, gas phase hydrophobic white carbon black and water, and then cooling and drying.
9. The flame-retardant and heat-insulating coating according to any one of claims 1 to 4, wherein: the emulsion is one or any combination of organosilicon emulsion, polyurethane emulsion and fluorocarbon emulsion.
10. The flame-retardant and heat-insulating coating according to any one of claims 1 to 4, wherein: the mass ratio of the auxiliary agent to the emulsion is 0.5-5:20-50, and the mass ratio of the water to the emulsion is 7-20:20-50.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101671523A (en) * | 2009-10-01 | 2010-03-17 | 厦门大学 | Aqueous flame-retardant and thermal-insulated coating and preparation method thereof |
| CN110256920A (en) * | 2019-06-25 | 2019-09-20 | 济宁学院 | A kind of Nano self-cleaning formula lacquer and method blending organic coating glass microballoon |
| CN113512333A (en) * | 2020-04-10 | 2021-10-19 | 中国石油化工股份有限公司 | Organosilicon modified acrylic acid anticorrosive heat-insulating coating and preparation method and application thereof |
| CN114591027A (en) * | 2022-04-21 | 2022-06-07 | 上海三棵树防水技术有限公司 | Composite hollow glass bead A-grade heat-insulating paste and preparation method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101671523A (en) * | 2009-10-01 | 2010-03-17 | 厦门大学 | Aqueous flame-retardant and thermal-insulated coating and preparation method thereof |
| CN110256920A (en) * | 2019-06-25 | 2019-09-20 | 济宁学院 | A kind of Nano self-cleaning formula lacquer and method blending organic coating glass microballoon |
| CN113512333A (en) * | 2020-04-10 | 2021-10-19 | 中国石油化工股份有限公司 | Organosilicon modified acrylic acid anticorrosive heat-insulating coating and preparation method and application thereof |
| CN114591027A (en) * | 2022-04-21 | 2022-06-07 | 上海三棵树防水技术有限公司 | Composite hollow glass bead A-grade heat-insulating paste and preparation method thereof |
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