CN116285523A - Expansion type fireproof heat-insulating coating and application thereof - Google Patents
Expansion type fireproof heat-insulating coating and application thereof Download PDFInfo
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- CN116285523A CN116285523A CN202310267202.1A CN202310267202A CN116285523A CN 116285523 A CN116285523 A CN 116285523A CN 202310267202 A CN202310267202 A CN 202310267202A CN 116285523 A CN116285523 A CN 116285523A
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- Prior art keywords
- insulating coating
- parts
- coating
- intumescent fire
- agent
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- 238000000576 coating method Methods 0.000 title claims abstract description 79
- 239000011248 coating agent Substances 0.000 title claims abstract description 78
- 239000000839 emulsion Substances 0.000 claims abstract description 39
- 239000003054 catalyst Substances 0.000 claims abstract description 38
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 36
- 239000011159 matrix material Substances 0.000 claims abstract description 34
- 239000004088 foaming agent Substances 0.000 claims abstract description 32
- 239000000945 filler Substances 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 24
- 239000003063 flame retardant Substances 0.000 claims abstract description 22
- ACOGMWBDRJJKNB-UHFFFAOYSA-N acetic acid;ethene Chemical group C=C.CC(O)=O ACOGMWBDRJJKNB-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229920001038 ethylene copolymer Polymers 0.000 claims abstract description 17
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 75
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 50
- 239000004408 titanium dioxide Substances 0.000 claims description 35
- 239000002245 particle Substances 0.000 claims description 27
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 25
- 239000004114 Ammonium polyphosphate Substances 0.000 claims description 23
- 235000019826 ammonium polyphosphate Nutrition 0.000 claims description 23
- 229920001276 ammonium polyphosphate Polymers 0.000 claims description 23
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 13
- 239000002270 dispersing agent Substances 0.000 claims description 11
- 238000006116 polymerization reaction Methods 0.000 claims description 11
- 230000009477 glass transition Effects 0.000 claims description 10
- 229920000877 Melamine resin Polymers 0.000 claims description 9
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 9
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 9
- 239000000080 wetting agent Substances 0.000 claims description 6
- 239000004593 Epoxy Substances 0.000 claims description 5
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- TXBCBTDQIULDIA-UHFFFAOYSA-N 2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)CO TXBCBTDQIULDIA-UHFFFAOYSA-N 0.000 claims description 2
- PTJWCLYPVFJWMP-UHFFFAOYSA-N 2-[[3-hydroxy-2-[[3-hydroxy-2,2-bis(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propoxy]methyl]-2-(hydroxymethyl)propane-1,3-diol Chemical compound OCC(CO)(CO)COCC(CO)(CO)COCC(CO)(CO)CO PTJWCLYPVFJWMP-UHFFFAOYSA-N 0.000 claims description 2
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 2
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 2
- 229920002472 Starch Polymers 0.000 claims description 2
- 229930006000 Sucrose Natural products 0.000 claims description 2
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 claims description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- GHPGOEFPKIHBNM-UHFFFAOYSA-N antimony(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Sb+3].[Sb+3] GHPGOEFPKIHBNM-UHFFFAOYSA-N 0.000 claims description 2
- 239000004202 carbamide Substances 0.000 claims description 2
- 239000001913 cellulose Substances 0.000 claims description 2
- 229920002678 cellulose Polymers 0.000 claims description 2
- 238000004132 cross linking Methods 0.000 claims description 2
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- ZQKXQUJXLSSJCH-UHFFFAOYSA-N melamine cyanurate Chemical compound NC1=NC(N)=NC(N)=N1.O=C1NC(=O)NC(=O)N1 ZQKXQUJXLSSJCH-UHFFFAOYSA-N 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- 239000000600 sorbitol Substances 0.000 claims description 2
- 239000008107 starch Substances 0.000 claims description 2
- 235000019698 starch Nutrition 0.000 claims description 2
- 239000005720 sucrose Substances 0.000 claims description 2
- NJVOHKFLBKQLIZ-UHFFFAOYSA-N (2-ethenylphenyl) prop-2-enoate Chemical compound C=CC(=O)OC1=CC=CC=C1C=C NJVOHKFLBKQLIZ-UHFFFAOYSA-N 0.000 claims 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 9
- 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 abstract description 5
- 229920002689 polyvinyl acetate Polymers 0.000 abstract description 4
- 239000011118 polyvinyl acetate Substances 0.000 abstract description 4
- 238000005336 cracking Methods 0.000 abstract description 3
- 230000002195 synergetic effect Effects 0.000 abstract description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 2
- 238000003763 carbonization Methods 0.000 abstract description 2
- 229910052744 lithium Inorganic materials 0.000 abstract description 2
- 238000010298 pulverizing process Methods 0.000 abstract description 2
- 238000010000 carbonizing Methods 0.000 abstract 1
- 239000003973 paint Substances 0.000 description 27
- 239000004721 Polyphenylene oxide Substances 0.000 description 19
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 19
- 229920000570 polyether Polymers 0.000 description 19
- 229920000058 polyacrylate Polymers 0.000 description 16
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 15
- 238000001914 filtration Methods 0.000 description 12
- 238000002156 mixing Methods 0.000 description 12
- 239000002002 slurry Substances 0.000 description 12
- 239000000126 substance Substances 0.000 description 9
- 238000000227 grinding Methods 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000003756 stirring Methods 0.000 description 6
- 150000003863 ammonium salts Chemical class 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 4
- -1 assistant Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000006260 foam Substances 0.000 description 3
- 229920003171 Poly (ethylene oxide) Chemical class 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 229930195729 fatty acid Natural products 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920000388 Polyphosphate Polymers 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 150000008051 alkyl sulfates Chemical class 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920001400 block copolymer Polymers 0.000 description 1
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 description 1
- 239000001205 polyphosphate Substances 0.000 description 1
- 235000011176 polyphosphates Nutrition 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229920001909 styrene-acrylic polymer Polymers 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 230000009044 synergistic interaction Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D131/00—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 an acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid; Coating compositions based on derivatives of such polymers
- C09D131/02—Homopolymers or copolymers of esters of monocarboxylic acids
- C09D131/04—Homopolymers or copolymers of vinyl acetate
-
- 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
- C09D5/185—Intumescent paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
- C08K2003/323—Ammonium polyphosphate
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)
- Paints Or Removers (AREA)
Abstract
The invention discloses an expansion type fireproof heat-insulating coating and application thereof, wherein the expansion type fireproof heat-insulating coating is prepared from the following raw materials: 20-40 parts of a coating matrix, 10-30 parts of a catalyst, 1-10 parts of a char forming agent, 1-10 parts of a foaming agent, 5-15 parts of a filler, 0.1-2 parts of an auxiliary agent and 10-30 parts of water; the expansion type fireproof heat-insulating coating prepared by the invention has good flame retardant property, solves the problem of poor cold and heat cycle resistance of the fireproof coating containing the polyvinyl acetate emulsion in the prior art, and simultaneously enhances the strength of an expansion carbonization layer under the synergistic effect of components such as the polyvinyl acetate-ethylene copolymer emulsion, a catalyst, a carbonizing agent, a foaming agent, a filler, an auxiliary agent and the like, thereby avoiding the problems of pulverization, cracking and the like of the coating, prolonging the service life of the coating, and being applicable to fireproof protection of bearing members of various steel structure engineering and lithium battery shells of new energy automobiles.
Description
Technical Field
The invention relates to the field of fireproof coatings, and specifically relates to an intumescent fireproof heat-insulating coating and application thereof, wherein the classification number of the intumescent fireproof coating is C09D 131/04.
Background
The fireproof paint is one kind of functional paint with pigment, stuffing, fireproof stuffing, plasticizer, assistant, water or solvent added into filming matter and has the main functions of reducing the inflammability of the painted substrate surface and raising the fireproof limit of the painted substrate.
The fireproof paint is divided into an expansion fireproof paint and a non-expansion fireproof paint according to the mechanism, when the expansion fireproof paint is on fire, the components are in synergistic interaction, the coating expands and foams to form a foam layer, and the foam layer not only isolates oxygen, but also has good heat insulation performance, and can effectively block the rapid conduction of heat to a base material, so that the flame retardant fireproof effect is remarkable.
The common film forming substances of the fireproof paint in the current market are polyvinyl acetate emulsion and epoxy emulsion, especially the two-component coating system has low foaming expansion rate of the coating in the fire environment, and the expansion rate needs to be increased by adding very high film thickness, so that the construction is unchanged, the construction cost is high, and in addition, the polyvinyl acetate emulsion is used as the film forming substance in the fireproof paint, and the prepared fireproof paint has the problem of poor cold and heat cycle resistance.
Patent CN114773960a discloses a water-based intumescent epoxy fireproof anticorrosive paint, which has fireproof performance and anticorrosive performance through the synergistic effect among modified water-based epoxy emulsion, flame retardant material and pigment and filler, but the problem of poor heat and cold cycle resistance of the fireproof paint is not solved, and the patent is a bi-component coating system with poor workability.
Disclosure of Invention
In order to solve the problems, the first aspect of the invention provides an intumescent fire-retardant heat-insulating coating, which is prepared from the following raw materials: 20-40 parts of a coating matrix, 10-30 parts of a catalyst, 1-10 parts of a char forming agent, 1-10 parts of a foaming agent, 5-15 parts of a filler, 0.1-2 parts of an auxiliary agent and 10-30 parts of water.
Further preferably, the intumescent fire-retardant heat-insulating coating is prepared from the following raw materials: 30-40 parts of coating matrix, 10-20 parts of catalyst, 5-10 parts of char forming agent, 5-10 parts of foaming agent, 8-12 parts of filler, 0.3-0.8 part of auxiliary agent and 20-30 parts of water.
Further preferably, the intumescent fire-retardant heat-insulating coating is prepared from the following raw materials: 32.5 parts of coating matrix, 16 parts of catalyst, 8 parts of char forming agent, 8 parts of foaming agent, 10 parts of filler, 0.5 part of auxiliary agent and 22 parts of water.
Preferably, the coating matrix comprises at least one of aqueous epoxy emulsion, polyvinyl acetate-ethylene copolymer emulsion, self-crosslinking silicone acrylic emulsion, acrylic ester emulsion, styrene acrylic emulsion and vinyl acetate emulsion.
Preferably, the coating matrix is polyvinyl acetate-ethylene copolymer emulsion, the viscosity of the polyvinyl acetate-ethylene copolymer emulsion is 2000-7000mpa.s, the average particle size is 200-500nm, the mass fraction of the vinyl acetate is 70-95%, and the glass transition temperature is 0-10 ℃.
Further preferably, the viscosity of the polyvinyl acetate-ethylene copolymer emulsion is 2500-6500mPa.s, the average particle size is 200-400nm, the mass fraction of the vinyl acetate is 70-82%, and the glass transition temperature is 4-8 ℃.
The applicant finds that the mass content of the vinyl acetate is limited to 70-82%, so that the compatibility among emulsion, catalyst, char forming agent and foaming agent is ensured, the particle size is further limited to 200-400nm, the viscosity is 2500-6500mPa.s, under the action of the filler, catalyst, char forming agent and foaming agent, the fusion among particles is more compact, the flame retardant property and the cold and heat cycle resistance are further improved, meanwhile, the glass transition temperature is limited to 4-8 ℃, under the action of the wetting agent and dispersing agent, the film forming property of the coating is good, and the compatibility among the catalyst, char forming agent, foaming agent and emulsion is further promoted.
Further preferably, the viscosity of the polyvinyl acetate-ethylene copolymer emulsion is 2700-6300mPa.s, the average particle size is 300nm, the mass fraction of the vinyl acetate is 80-82%, and the glass transition temperature is 4-8 ℃.
Preferably, the char-forming agent comprises at least one of pentaerythritol, dipentaerythritol, tripentaerythritol, starch, cellulose and derivatives, sucrose and sorbitol, and the foaming agent is at least one of urea, dicyandiamide, melamine and melamine cyanurate.
Further preferably, the char-forming agent is pentaerythritol and the foaming agent is melamine.
Preferably, the weight ratio of the catalyst, the char-forming agent and the foaming agent is (1-5): 1:1.
further preferably, the weight ratio of the catalyst, the char-forming agent and the foaming agent is (1-3): 1:1. the applicant defines that the mass ratio of the ammonium polyphosphate to the pentaerythritol to the melamine is (1-3): 1:1, by reasonably optimizing the proportion, under the combined action of the polyvinyl acetate-ethylene copolymer emulsion, the strength of the expansion coating is enhanced, so that the coating has better flame retardant property, on the basis, the applicant further limits the polymerization degree of ammonium polyphosphate to be more than or equal to 1000, when the water solubility is less than or equal to 0.5g/100mL, the unexpected discovery is that the cold and hot cycle resistance of the coating is improved, the content of small molecular substances in the ammonium polyphosphate is possibly less, the stability of the emulsion is avoided being damaged by the small molecular substances, the emulsion is accelerated to age, the cold and hot cycle resistance of the emulsion is influenced, meanwhile, the average particle size of the emulsion is further limited to be 10 mu m, and the cold and hot cycle resistance of the coating is further improved by the mutual cooperation between different particle sizes.
Further preferably, the weight ratio of the catalyst, the char-forming agent and the foaming agent is 2:1:1.
preferably, the catalyst is ammonium polyphosphate, the polymerization degree is more than or equal to 900, the average particle size is 5-15 mu m, and the water solubility is less than or equal to 0.7g/100mL.
Further preferably, the catalyst is ammonium polyphosphate, the polymerization degree is more than or equal to 1000, the average particle size is 8-11 mu m, and the water solubility is less than or equal to 0.6g/100mL.
Further preferably, the catalyst is ammonium polyphosphate, the polymerization degree is more than or equal to 1000, the average particle size is 10 mu m, and the water solubility is less than or equal to 0.5g/100mL.
Preferably, the filler comprises at least one of calcium carbonate, titanium dioxide, barium sulfate, aluminum oxide, antimony white powder, kaolin and mica powder.
Preferably, the filler is calcium carbonate and titanium dioxide, the average particle size of the calcium carbonate is 20-40 mu m, and the average particle size of the titanium dioxide is 0.1-1 mu m.
Further preferably, the filler is calcium carbonate and titanium dioxide, the average particle size of the calcium carbonate is 30-40 μm, and the average particle size of the titanium dioxide is 0.1-0.2 μm.
Further preferably, the filler is calcium carbonate and titanium dioxide, the average particle size of the calcium carbonate is 37 μm, and the average particle size of the titanium dioxide is 0.19 μm.
Preferably, the auxiliary agent is a dispersing agent and a wetting agent.
Further preferably, the dispersant comprises at least one of a sodium salt dispersant, a polyphosphate dispersant and an ammonium salt dispersant, and the wetting agent comprises at least one of polyether modified siloxane, polyoxyethylene alkylphenol ether, polyoxyethylene fatty alcohol ether, polyoxyethylene polyoxypropylene block copolymer, alkyl sulfate, sulfonate, fatty acid or fatty acid ester sulfate and carboxylic acid soap.
Further preferably, the dispersant is an ammonium salt dispersant and the wetting agent is a polyether modified siloxane.
Further preferably, the ammonium salt dispersing agent is a polyacrylate ammonium salt, the wetting agent is polyether modified siloxane, and the mass ratio of the ammonium salt dispersing agent to the polyether modified siloxane is 1:1.
the invention also provides a preparation method of the expansion type fireproof heat-insulating coating, which comprises the following specific steps: mixing catalyst, char forming agent, foaming agent, filler, auxiliary agent and water according to weight parts at the rotation speed of 500-700r/min, stirring for 5-15min, adding into a ball mill for grinding, filtering to obtain slurry, mixing the slurry with a coating matrix, regulating the rotation speed to 1000-1200r/min, dispersing for 40-50min, and filtering to obtain the intumescent fire-proof heat-insulating coating.
The invention provides an application of an expansion type fireproof heat-insulating coating on a bearing member of an indoor steel structure.
The beneficial effects are that: the fireproof coating prepared by the application has excellent weather resistance and flame retardance, solves the problem of poor weather resistance of the fireproof coating containing the polyvinyl acetate emulsion in the prior art, and simultaneously enhances the strength of an expansion carbonization layer under the synergistic effect of components such as the polyvinyl acetate-ethylene copolymer emulsion, a catalyst, a char former, a foaming agent, a filler, an auxiliary agent and the like, thereby avoiding the problems of pulverization and cracking of a coating, prolonging the service life of the coating, and being applicable to fireproof protection of bearing members of indoor steel structure engineering and lithium battery shells of new energy automobiles.
Examples
Example 1
An intumescent fire-proof heat-insulating coating is prepared from the following raw materials: 32.5 parts of coating matrix, 16 parts of catalyst, 8 parts of char forming agent, 8 parts of foaming agent, 10 parts of filler, 0.5 part of auxiliary agent and 22 parts of water.
The paint matrix is polyvinyl acetate-ethylene copolymer emulsion, the viscosity of the paint matrix is 2700-6300mPa.s, the average grain diameter is 300nm, the mass fraction of the vinyl acetate is 80-82%, the glass transition temperature is 4-8 ℃, and the paint matrix is purchased from German Wals and the model is EZ3066.
The catalyst is ammonium polyphosphate, the char forming agent is pentaerythritol, the foaming agent is melamine, and the weight ratio of the catalyst to the char forming agent is 2:1:1, the polymerization degree of the ammonium polyphosphate is more than or equal to 1000, the average particle size is 10 mu m, the water solubility is less than or equal to 0.5g/100mL, and the ammonium polyphosphate is purchased from Zhongshan Kang Nuode.
The filler is calcium carbonate and titanium dioxide, the average grain diameter of the calcium carbonate is 37 mu m, the average grain diameter of the titanium dioxide is 0.19 mu m, the calcium carbonate is purchased from Hebei Heng-guang mineral products Limited company, the titanium dioxide is rutile type titanium dioxide, and the titanium dioxide is purchased from Tenuo in the United states and has the model of CR-828.
The auxiliary agent is ammonium polyacrylate and polyether modified siloxane, and the mass ratio of the ammonium polyacrylate to the polyether modified siloxane is 1:1, the ammonium polyacrylate is available from Clariant under the model XW330, and the polyether modified siloxane is available from Pick chemical under the model BYK-346.
The invention also provides a preparation method of the expansion type fireproof heat-insulating coating, which comprises the following specific steps: mixing catalyst, char forming agent, foaming agent, filler, auxiliary agent and water according to weight parts at 600r/min, stirring for 10min, adding into a ball mill, grinding to fineness less than or equal to 40 mu m, filtering to obtain slurry, mixing the slurry with a coating matrix, regulating the rotation speed to 1100r/min, dispersing for 45min, and filtering to obtain the intumescent fire-proof heat-insulating coating.
In a second aspect, the present embodiment provides an application of an intumescent fire-retardant heat-insulating coating on a load-bearing member of an indoor steel structure.
Example 2
An intumescent fire-proof heat-insulating coating is prepared from the following raw materials: 40 parts of coating matrix, 30 parts of catalyst, 10 parts of char forming agent, 10 parts of foaming agent, 15 parts of filler, 0.5 part of auxiliary agent and 22 parts of water.
The paint matrix is polyvinyl acetate-ethylene copolymer emulsion, the viscosity of the paint matrix is 2700-6300mPa.s, the average grain diameter is 300nm, the mass fraction of the vinyl acetate is 80-82%, the glass transition temperature is 4-8 ℃, and the paint matrix is purchased from German Wals and the model is EZ3066.
The catalyst is ammonium polyphosphate, the char forming agent is pentaerythritol, the foaming agent is melamine, and the weight ratio of the catalyst to the char forming agent is 3:1:1, the polymerization degree of the ammonium polyphosphate is more than or equal to 1000, the average particle size is 10 mu m, the water solubility is less than or equal to 0.5g/100mL, and the ammonium polyphosphate is purchased from Zhongshan Kang Nuode.
The filler is calcium carbonate and titanium dioxide, the average grain diameter of the calcium carbonate is 37 mu m, the average grain diameter of the titanium dioxide is 0.19 mu m, the calcium carbonate is purchased from Hebei Heng-guang mineral products Limited company, the titanium dioxide is rutile type titanium dioxide, and the titanium dioxide is purchased from Tenuo in the United states and has the model of CR-828.
The auxiliary agent is ammonium polyacrylate and polyether modified siloxane, and the mass ratio of the ammonium polyacrylate to the polyether modified siloxane is 1:1, the ammonium polyacrylate is available from Clariant under the model XW330, and the polyether modified siloxane is available from Pick chemical under the model BYK-346.
The invention also provides a preparation method of the expansion type fireproof heat-insulating coating, which comprises the following specific steps: mixing catalyst, char forming agent, foaming agent, filler, auxiliary agent and water according to weight parts at 600r/min, stirring for 10min, adding into a ball mill, grinding to fineness less than or equal to 40 mu m, filtering to obtain slurry, mixing the slurry with a coating matrix, regulating the rotation speed to 1100r/min, dispersing for 45min, and filtering to obtain the intumescent fire-proof heat-insulating coating.
In a second aspect, the present embodiment provides an application of an intumescent fire-retardant heat-insulating coating on a load-bearing member of an indoor steel structure.
Example 3
An intumescent fire-proof heat-insulating coating is prepared from the following raw materials: 20 parts of coating matrix, 10 parts of catalyst, 10 parts of char forming agent, 10 parts of foaming agent, 5 parts of filler, 0.5 part of auxiliary agent and 22 parts of water.
The paint matrix is polyvinyl acetate-ethylene copolymer emulsion, the viscosity of the paint matrix is 2700-6300mPa.s, the average grain diameter is 300nm, the mass fraction of the vinyl acetate is 80-82%, the glass transition temperature is 4-8 ℃, and the paint matrix is purchased from German Wals and the model is EZ3066.
The catalyst is ammonium polyphosphate, the char forming agent is pentaerythritol, the foaming agent is melamine, and the weight ratio of the catalyst to the char forming agent is 1:1:1, the polymerization degree of the ammonium polyphosphate is more than or equal to 1000, the average particle size is 10 mu m, the water solubility is less than or equal to 0.5g/100mL, and the ammonium polyphosphate is purchased from Zhongshan Kang Nuode.
The filler is calcium carbonate and titanium dioxide, the average grain diameter of the calcium carbonate is 37 mu m, the average grain diameter of the titanium dioxide is 0.19 mu m, the calcium carbonate is purchased from Hebei Heng-guang mineral products Limited company, the titanium dioxide is rutile type titanium dioxide, and the titanium dioxide is purchased from Tenuo in the United states and has the model of CR-828.
The auxiliary agent is ammonium polyacrylate and polyether modified siloxane, and the mass ratio of the ammonium polyacrylate to the polyether modified siloxane is 1:1, the ammonium polyacrylate is available from Clariant under the model XW330, and the polyether modified siloxane is available from Pick chemical under the model BYK-346.
The invention also provides a preparation method of the expansion type fireproof heat-insulating coating, which comprises the following specific steps: mixing catalyst, char forming agent, foaming agent, filler, auxiliary agent and water according to weight parts at 600r/min, stirring for 10min, adding into a ball mill, grinding to fineness less than or equal to 40 mu m, filtering to obtain slurry, mixing the slurry with a coating matrix, regulating the rotation speed to 1100r/min, dispersing for 45min, and filtering to obtain the intumescent fire-proof heat-insulating coating.
In a second aspect, the present embodiment provides an application of an intumescent fire-retardant heat-insulating coating on a load-bearing member of an indoor steel structure.
Comparative example 1
The viscosity of the polyvinyl acetate-ethylene copolymer emulsion was changed to 500-1000mPa.s, the average particle diameter was changed to 2000nm, the mass fraction of vinyl acetate was 82-86%, and the emulsion was obtained from Beijing Oriental Petroleum, model BJ-707, and the remainder was as in example 1.
Comparative example 2
The polymerization degree of ammonium polyphosphate was changed to 800, the average particle diameter was changed to 15 μm, the water solubility was not more than 0.5g/100mL, and the product was purchased from Pusefurophonium chemical Co., ltd., model number was EPFR-APP216, and the rest was the same as in example 1.
Comparative example 3
An intumescent fire-proof heat-insulating coating is prepared from the following raw materials: 32.5 parts of coating matrix, 18 parts of catalyst, 9 parts of char forming agent, 3 parts of foaming agent, 10 parts of filler, 0.5 part of auxiliary agent and 22 parts of water.
The paint matrix is polyvinyl acetate-ethylene copolymer emulsion, the viscosity of the paint matrix is 2700-6300mPa.s, the average grain diameter is 300nm, the mass fraction of the vinyl acetate is 80-82%, the glass transition temperature is 4-8 ℃, and the paint matrix is purchased from German Wals and the model is EZ3066.
The catalyst is ammonium polyphosphate, the char forming agent is pentaerythritol, the foaming agent is melamine, and the weight ratio of the catalyst to the char forming agent is 6:3:1, the polymerization degree of the ammonium polyphosphate is more than or equal to 1000, the average particle size is 10 mu m, the water solubility is less than or equal to 0.5g/100mL, and the ammonium polyphosphate is purchased from Zhongshan Kang Nuode.
The filler is calcium carbonate and titanium dioxide, the average grain diameter of the calcium carbonate is 37 mu m, the average grain diameter of the titanium dioxide is 0.19 mu m, the calcium carbonate is purchased from Hebei Heng-guang mineral products Limited company, the titanium dioxide is rutile type titanium dioxide, and the titanium dioxide is purchased from Tenuo in the United states and has the model of CR-828.
The auxiliary agent is ammonium polyacrylate and polyether modified siloxane, and the mass ratio of the ammonium polyacrylate to the polyether modified siloxane is 1:1, the ammonium polyacrylate is available from Clariant under the model XW330, and the polyether modified siloxane is available from Pick chemical under the model BYK-346.
The invention also provides a preparation method of the expansion type fireproof heat-insulating coating, which comprises the following specific steps: mixing catalyst, char forming agent, foaming agent, filler, auxiliary agent and water according to weight parts at 600r/min, stirring for 10min, adding into a ball mill, grinding to fineness less than or equal to 40 mu m, filtering to obtain slurry, mixing the slurry with a coating matrix, regulating the rotation speed to 1100r/min, dispersing for 45min, and filtering to obtain the intumescent fire-proof heat-insulating coating.
In a second aspect, the present embodiment provides an application of an intumescent fire-retardant heat-insulating coating on a load-bearing member of an indoor steel structure.
Comparative example 4
An intumescent fire-proof heat-insulating coating is prepared from the following raw materials: 50 parts of coating matrix, 30 parts of catalyst, 15 parts of char forming agent, 15 parts of foaming agent, 10 parts of filler, 0.5 part of auxiliary agent and 22 parts of water.
The paint matrix is polyvinyl acetate-ethylene copolymer emulsion, the viscosity of the paint matrix is 2700-6300mPa.s, the average grain diameter is 300nm, the mass fraction of the vinyl acetate is 80-82%, the glass transition temperature is 4-8 ℃, and the paint matrix is purchased from German Wals and the model is EZ3066.
The catalyst is ammonium polyphosphate, the char forming agent is pentaerythritol, the foaming agent is melamine, and the weight ratio of the catalyst to the char forming agent is 2:1:1, the polymerization degree of the ammonium polyphosphate is more than or equal to 1000, the average particle size is 10 mu m, the water solubility is less than or equal to 0.5g/100mL, and the ammonium polyphosphate is purchased from Zhongshan Kang Nuode.
The filler is calcium carbonate and titanium dioxide, the average grain diameter of the calcium carbonate is 37 mu m, the average grain diameter of the titanium dioxide is 0.19 mu m, the calcium carbonate is purchased from Hebei Heng-guang mineral products Limited company, the titanium dioxide is rutile type titanium dioxide, and the titanium dioxide is purchased from Tenuo in the United states and has the model of CR-828.
The auxiliary agent is ammonium polyacrylate and polyether modified siloxane, and the mass ratio of the ammonium polyacrylate to the polyether modified siloxane is 1:1, the ammonium polyacrylate is available from Clariant under the model XW330, and the polyether modified siloxane is available from Pick chemical under the model BYK-346.
The invention also provides a preparation method of the expansion type fireproof heat-insulating coating, which comprises the following specific steps: mixing catalyst, char forming agent, foaming agent, filler, auxiliary agent and water according to weight parts at 600r/min, stirring for 10min, adding into a ball mill, grinding to fineness less than or equal to 40 mu m, filtering to obtain slurry, mixing the slurry with a coating matrix, regulating the rotation speed to 1100r/min, dispersing for 45min, and filtering to obtain the intumescent fire-proof heat-insulating coating.
In a second aspect, the present embodiment provides an application of an intumescent fire-retardant heat-insulating coating on a load-bearing member of an indoor steel structure.
Evaluation of Performance
(1) Fire resistance testing: the flame (1000 ℃) formed by the self-made liquefied petroleum gas combustion nozzle is adopted to simulate the flame of an actual fire scene, so that the fire resistance of the fireproof paint is evaluated. In the course of the experiment, the distance between the nozzle and the sample plate was 10cm, so that higher temperature and flame impact force could be obtained, and the back surface temperature of the steel plate was measured by using a thermocouple, and the measurement results are shown in table 1 below.
(2) Cold and heat resistance cycle performance test: the cold and hot cycle resistance of examples 1-3 and comparative examples 1-4 were tested according to GB 14007-2018, and after 15 tests, the coating had no cracking, peeling, foaming phenomena, and the heat insulation efficiency attenuation was no more than 35%, i.e., it was acceptable, otherwise, it was unacceptable.
TABLE 1
Claims (9)
1. An intumescent fire-retardant heat-insulating coating according to claim 1, wherein the coating matrix comprises at least one of aqueous epoxy emulsion, polyvinyl acetate-ethylene copolymer emulsion, self-crosslinking silicone-acrylate emulsion, styrene-acrylate emulsion, and vinyl acetate emulsion.
2. The intumescent fire-retardant heat-insulating coating according to claim 2, wherein the coating matrix is a polyvinyl acetate-ethylene copolymer emulsion, the viscosity of the polyvinyl acetate-ethylene copolymer emulsion is 2000-7000mpa.s, the average particle size is 200-500nm, the mass fraction of the vinyl acetate is 70-95%, and the glass transition temperature is 0-10 ℃.
3. The intumescent fire-retardant and heat-insulating coating according to claim 1, wherein the char-forming agent comprises at least one of pentaerythritol, dipentaerythritol, tripentaerythritol, starch, cellulose and derivatives, sucrose and sorbitol, and the foaming agent is at least one of urea, dicyandiamide, melamine and melamine cyanurate.
4. The intumescent fire-retardant heat-insulating coating according to claim 4, wherein the weight ratio of the catalyst, the char-forming agent and the foaming agent is (1-5): 1:1.
5. The intumescent fire-retardant heat-insulating coating as claimed in claim 4, wherein the catalyst is ammonium polyphosphate, the polymerization degree is more than or equal to 900, the average particle size is 5-15 μm, and the water solubility is less than or equal to 0.7g/100mL.
6. An intumescent fire-retardant heat-insulating coating according to claim 1, wherein said filler comprises at least one of calcium carbonate, titanium dioxide, barium sulfate, alumina, antimony white powder, kaolin, mica powder.
7. The intumescent fire-retardant heat-insulating coating according to claim 7, wherein the filler is calcium carbonate and titanium dioxide, the average particle size of the calcium carbonate is 20-40 μm, and the average particle size of the titanium dioxide is 0.1-1 μm.
8. An intumescent fire-retardant heat-insulating coating according to claim 1, wherein the auxiliary agents are dispersants and wetting agents.
9. Use of an intumescent fire-retardant heat-insulating coating according to any of claims 1-9 on a load-bearing member of an indoor steel structure.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102911566A (en) * | 2012-10-26 | 2013-02-06 | 清远市普塞呋磷化学有限公司 | Waterproof efficient intumescent fire retardant coating |
| CN105694620A (en) * | 2016-04-03 | 2016-06-22 | 北京化工大学 | Ultrathin high-solid-content water-based expansion-type fireproof coating and preparation method thereof |
| CN112980262A (en) * | 2021-04-02 | 2021-06-18 | 西北永新涂料有限公司 | Water-based intumescent fire retardant coating for indoor steel structure and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102911566A (en) * | 2012-10-26 | 2013-02-06 | 清远市普塞呋磷化学有限公司 | Waterproof efficient intumescent fire retardant coating |
| CN105694620A (en) * | 2016-04-03 | 2016-06-22 | 北京化工大学 | Ultrathin high-solid-content water-based expansion-type fireproof coating and preparation method thereof |
| CN112980262A (en) * | 2021-04-02 | 2021-06-18 | 西北永新涂料有限公司 | Water-based intumescent fire retardant coating for indoor steel structure and preparation method thereof |
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