CN113105796A - Fireproof heat-insulating coating - Google Patents
Fireproof heat-insulating coating Download PDFInfo
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- CN113105796A CN113105796A CN202110234192.2A CN202110234192A CN113105796A CN 113105796 A CN113105796 A CN 113105796A CN 202110234192 A CN202110234192 A CN 202110234192A CN 113105796 A CN113105796 A CN 113105796A
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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
- C09D133/00—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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/18—Fireproof paints including high temperature resistant paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—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
- C09D7/60—Additives non-macromolecular
- C09D7/63—Additives non-macromolecular organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
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- 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
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- 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
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
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- 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
- C08K3/38—Boron-containing compounds
- C08K2003/387—Borates
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/18—Spheres
- C08L2205/20—Hollow spheres
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses a fireproof heat-insulating coating which comprises the following raw materials in parts by weight: acrylic emulsion, polyurethane acrylate, poly (N-isopropyl acrylamide) modified magnesium hydroxide, paraffin phase-change microspheres, urea and opaque polymer; the preparation method of the acrylic emulsion comprises the following steps: step 1: taking 100-200 parts by weight of methacrylic acid resin, 300-320 parts by weight of polyvinyl compound and 0.5-1 part by weight of initiator, stirring and mixing at 0-10 ℃, and heating to 20-30 ℃ for carrying out polymerization reaction for 30-60 min; step 2: under the stirring condition, adding 100-150 parts by weight of a hydroxyl acrylic resin monomer protected by silane and 50-60 parts by weight of an organic silicon polymer into the mixture obtained in the step 1, and carrying out polymerization reaction at 20-30 ℃ for 30-60 min to obtain an acrylic resin product; and step 3: adding an emulsifier and water into the acrylic resin obtained in the step 2, and emulsifying to obtain an acrylic emulsion; the invention has the advantages of fire prevention, heat preservation, low emission of harmful substances such as formaldehyde and the like.
Description
Technical Field
The invention relates to the field of coatings, in particular to a fireproof heat-insulating coating for building walls and a preparation method thereof.
Background
The prior state advocates low carbon and low emission energetically, energy-saving and heat-insulating must be carried out to house and public building compulsorily, the energy-saving and heat-insulating problem of building wall receives increasing attention, governments and enterprises look for building heat insulation and methods for reducing coal use in many aspects, the wall heat-insulating coating can not only solve the heat-insulating problem, but also can relatively reduce the wall thickness, is an effective way for realizing building energy saving at present, but the existing heat-insulating coating has weaker fire resistance, the northern area of China, especially buildings in the northeast, the heat insulation is usually carried out by methods of pasting heat-insulating plates on outer walls, brushing coatings and the like, some heat-insulating plates are inflammable, and a fire disaster is easily caused, so that the fireproof coating needs to be brushed on the surface of an inflammable material, the flammability on the surface of the coated.
Disclosure of Invention
The invention provides a fireproof heat-insulating coating, which at least solves the problem of poor fire resistance of the heat-insulating coating in the prior art.
The invention provides a fireproof heat-insulating coating which comprises the following raw materials in parts by weight: 10-20 parts of acrylic emulsion, 12-18 parts of polyurethane acrylate, 15-25 parts of poly (N-isopropylacrylamide) modified magnesium hydroxide, 2-5 parts of paraffin phase-change microspheres, 2-3 parts of urea and 1-5 parts of opaque polymer;
the opaque polymer is a hollow polymer sphere;
the shell of the hollow polymer sphere is a polymer consisting of styrene and acrylic resin;
the preparation method of the acrylic resin comprises the following steps:
step 1: taking 100-200 parts by weight of methacrylic acid resin, 300-320 parts by weight of polyvinyl compound and 0.5-1 part by weight of initiator, stirring and mixing at 0-10 ℃, and heating to 20-30 ℃ for carrying out polymerization reaction for 30-60 min;
step 2: under the stirring condition, adding 100-150 parts by weight of a hydroxyl acrylic resin monomer protected by silane and 50-60 parts by weight of an organic silicon polymer into the mixture obtained in the step 1, and carrying out polymerization reaction at 20-30 ℃ for 30-60 min to obtain an acrylic resin product;
the preparation method of the acrylic emulsion comprises the following steps:
and (3) adding an emulsifier and water into the acrylic resin obtained in the step (2), and emulsifying to obtain an acrylic emulsion.
Further, the paraffin phase-change microspheres are formed by sealing paraffin in a polymer shell;
the average diameter of the paraffin phase-change microspheres is 6-45 micrometers;
the phase transition temperature of the paraffin phase transition microsphere is 20-25 ℃, and the phase transition enthalpy is more than 100J/g.
Further, the filler is formed by mixing 5-10 parts of titanium dioxide, 1-5 parts of hollow glass beads, 1-5 parts of borax, 2-10 parts of diatomite and 1-5 parts of calcined kaolin.
Further, the auxiliary agent comprises: 2-7 parts of anionic surfactant, 1-3 parts of flatting agent, 1-3 parts of defoaming agent, 0.1-1 part of wetting agent, 0.3-3 parts of dispersing agent and 0.1-5 parts of thickening agent.
Further, the anionic surfactant is sodium dodecyl benzene sulfonate, and the wetting agent is a polyoxyethylene ether wetting agent.
Further, the dispersant is a high molecular weight polyacrylic ammonium salt dispersant; the thickening agent is alkali swelling and hydrophobic modified polyurethane thickening agent, and the weight portions of the thickening agent are 1: mixing at a ratio of 1.
Furthermore, the molecular weight of the modifier poly (N-isopropylacrylamide) in the poly (N-isopropylacrylamide) -modified magnesium hydroxide is 8000g/mol, and the particle size is 20-32 mu m.
Further, the preparation method of the fireproof heat-insulating coating comprises the following steps:
step 1: weighing the raw materials according to the weight ratio of the formula;
step 2: adding a wetting agent, a dispersing agent, an anionic surfactant and a filler into a container, and stirring at a medium speed; adding at least half amount of hydrophobic modified polyurethane thickener, and dispersing uniformly at medium speed;
and step 3: adding acrylic emulsion, urethane acrylate, poly (N-isopropylacrylamide) modified magnesium hydroxide, paraffin phase-change microspheres, opaque polymer, urea, alkali swelling thickener, residual hydrophobic modified polyurethane thickener and other auxiliaries into the product obtained in the step 2, stirring uniformly at a medium speed, filtering, weighing and packaging.
Compared with the prior art, the coating disclosed by the invention can block heat when encountering fire, slow down the spread and propagation speed of flame, prevent combustion within a certain time, play a role in fire resistance, win time for saving, has the functions of fire prevention and heat preservation, and has the advantages of low emission of harmful substances such as formaldehyde and the like, environmental friendliness and the like.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
The compositions of examples 1 to 3 of the present invention are specifically shown in the following table (unit: kg).
Examples 1, 2, 3, comparative example the anionic surfactant was sodium dodecylbenzenesulfonate; the wetting agent is polyoxyethylene ether wetting agent; the dispersant is high molecular weight polyacrylic ammonium salt dispersant; the thickening agent is alkali swelling and hydrophobic modified polyurethane thickening agent, and the weight portions are 1: 1, mixing in proportion; the molecular weight of the modifier poly (N-isopropylacrylamide) in the poly (N-isopropylacrylamide) -modified magnesium hydroxide is 8000g/mol, and the particle size is 20-32 mu m.
In examples 1 to 3 and the comparative example, water was used as a solvent.
Examples 1-3, the opaque polymer is a hollow polymer sphere; the shell of the hollow polymer sphere is a polymer consisting of styrene and acrylic resin;
the preparation method of the acrylic resin used in examples 1 to 3 of the present invention is as follows:
step 1: taking 200 parts by weight of methacrylic acid resin, 320 parts by weight of polyvinyl compound and 0.5 part by weight of initiator, stirring and mixing at 0-10 ℃, and heating to 30 ℃ for carrying out polymerization reaction for 60 min;
step 2: under the condition of stirring, adding 100 parts by weight of acrylic resin monomer with hydroxyl and 60 parts by weight of organic silicon polymer which are protected by silane into the mixture obtained in the step 1, and carrying out polymerization reaction for 60min at the temperature of 20 ℃ to obtain an acrylic resin product;
wherein the polyvinyl compound is vinyl ether and divinylbenzene according to a molar ratio of 2: 1, silane-protected acrylic resin monomer with hydroxyl is 2 to (trimethylsiloxy) ethyl methacrylate, and organic silicon polymer is silicone oil.
Embodiments 1 to 3 of the present invention, the preparation method of the acrylic emulsion: and (3) adding 1-2 parts by weight of emulsifier and 40-50 parts by weight of water into 30-40 parts by weight of the acrylic resin obtained in the step (2), and emulsifying to obtain the acrylic emulsion.
The preparation method of the acrylic emulsion of the comparative example of the invention is as follows:
step 1: taking 180 parts by weight of methacrylic acid resin, 300 parts by weight of polyvinyl compound and 0.5 part by weight of initiator, stirring and mixing at 0-5 ℃, and heating to 30 ℃ for carrying out polymerization reaction for 50 min;
step 2: adding 180 parts by weight of hydroxyl-containing acrylic resin monomer and 60 parts by weight of organic silicon polymer into the mixture obtained in the step 1 under the stirring condition, and carrying out polymerization reaction for 60min at 30 ℃ to obtain acrylic resin of a comparison example of the invention;
and step 3: and (3) adding an emulsifier and water into the acrylic resin obtained in the step (2), and emulsifying to obtain an acrylic emulsion.
Wherein the polyvinyl compound is vinyl ether and divinylbenzene according to a molar ratio of 2: 1, the acrylic resin monomer with hydroxyl is 2 hydroxyethyl methacrylate, and the organic silicon polymer is silicone oil.
The preparation method of the fireproof heat-insulating coating of the embodiment 1-3 and the comparative example comprises the following steps:
step 1: weighing the raw materials according to the weight ratio of the formula;
step 2: adding a wetting agent, a dispersing agent, an anionic surfactant and a filler into a container, and stirring at a medium speed; adding at least half amount of hydrophobic modified polyurethane thickener, and dispersing uniformly at medium speed;
step 3 of preparation of examples 1-3: adding acrylic emulsion, urethane acrylate, poly (N-isopropylacrylamide) modified magnesium hydroxide, paraffin phase-change microspheres, opaque polymer, urea, alkali swelling thickener, residual hydrophobic modified polyurethane thickener and other auxiliaries into the product obtained in the step 2, stirring uniformly at a medium speed, filtering, weighing and packaging.
Step 3 of comparative preparation: adding acrylic emulsion, urethane acrylate, poly (N-isopropylacrylamide) modified magnesium hydroxide, urea, an alkali swelling thickener, the rest hydrophobic modified polyurethane thickener and other auxiliaries into the product obtained in the step 2, stirring uniformly at a medium speed, filtering, weighing and packaging.
The coatings of examples 1 to 3 of the present invention and the comparative example were applied to a substrate, cured to form a coating, and subjected to a performance test, the results of which are shown in the following table:
the acrylic resin in the embodiments 1-3 of the present invention adopts the acrylic resin monomer with hydroxyl protected by silane, and silane is used to protect the hydroxyl of the acrylic resin monomer, so as to prevent the hydroxyl from participating in the polymerization reaction, thereby improving the hydroxyl content in the acrylic resin and increasing the viscosity of the acrylic resin, and simultaneously, the trimethyl silicon protecting group adopted in the embodiments 1-3 of the present invention can be naturally decomposed under the action of inorganic salt, so that the hydroxyl is exposed, and other components in the coating and the surface of the filler can be effectively bonded; the elastic emulsion of the comparison example directly adopts hydroxyl acrylic resin monomer to carry out polymerization reaction, so that hydroxyl participates in the polymerization process, the loss of the number of the hydroxyl is caused, and the viscosity is reduced.
The acrylic emulsion of the invention adopts the acrylic resin monomer with hydroxyl group protected by silane, so that the coating has strong tolerance to high-low temperature alternation, and can not obviously bubble after being used for a long time.
The paraffin phase-change microspheres, opaque polymers, hollow glass microspheres, kaolin and other fillers are adopted in the coating, so that the volume density and the heat conductivity of the coating are effectively reduced, and the heat-insulating property and the flame retardance of the coating are improved. Modifying magnesium hydroxide by using a high molecular polymer poly (N-isopropylacrylamide), wherein on one hand, the poly (N-isopropylacrylamide) contains hydrophilic groups and reacts with hydroxyl on the surface of the magnesium hydroxide; on the other hand, the long chains in the high molecular polymer form steric hindrance, so that the agglomeration of strong magnesium oxide is reduced, and particles with smaller particle size are formed. The modified magnesium hydroxide has better dispersibility and compatibility, and the flame retardant effect of the coating is greatly improved.
Finally, it should be noted that the above-mentioned embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the modifications and equivalents of the specific embodiments of the present invention can be made by those skilled in the art after reading the present specification, but these modifications and variations do not depart from the scope of the claims of the present application.
Claims (8)
1. The fireproof heat-insulation coating is characterized by comprising the following raw materials in parts by weight: 10-20 parts of acrylic emulsion, 12-18 parts of polyurethane acrylate, 15-25 parts of poly (N-isopropylacrylamide) modified magnesium hydroxide, 2-5 parts of paraffin phase-change microspheres, 2-3 parts of urea and 1-5 parts of opaque polymer;
the opaque polymer is a hollow polymer sphere;
the shell of the hollow polymer sphere is a polymer consisting of styrene and acrylic resin;
the preparation method of the acrylic resin comprises the following steps:
step 1: taking 100-200 parts by weight of methacrylic acid resin, 300-320 parts by weight of polyvinyl compound and 0.5-1 part by weight of initiator, stirring and mixing at 0-10 ℃, and heating to 20-30 ℃ for carrying out polymerization reaction for 30-60 min;
step 2: under the stirring condition, adding 100-150 parts by weight of a hydroxyl acrylic resin monomer protected by silane and 50-60 parts by weight of an organic silicon polymer into the mixture obtained in the step 1, and carrying out polymerization reaction at 20-30 ℃ for 30-60 min to obtain an acrylic resin product;
the preparation method of the acrylic emulsion comprises the following steps:
and (3) adding an emulsifier and water into the acrylic resin obtained in the step (2), and emulsifying to obtain an acrylic emulsion.
2. The fireproof thermal insulation coating of claim 1, wherein the paraffin phase-change microspheres are formed by encapsulating paraffin in a polymer shell;
the average diameter of the paraffin phase-change microspheres is 6-45 micrometers;
the phase transition temperature of the paraffin phase transition microsphere is 20-25 ℃, and the phase transition enthalpy is more than 100J/g.
3. The fireproof thermal insulation coating as claimed in claim 1, wherein the filler is prepared by mixing 5-10 parts of titanium dioxide, 1-5 parts of hollow glass beads, 1-5 parts of borax, 2-10 parts of diatomite and 1-5 parts of calcined kaolin.
4. The fireproof thermal insulation coating of claim 1, wherein the auxiliary agent comprises: 2-7 parts of anionic surfactant, 1-3 parts of flatting agent, 1-3 parts of defoaming agent, 0.1-1 part of wetting agent, 0.3-3 parts of dispersing agent and 0.1-5 parts of thickening agent.
5. The fireproof thermal insulation coating as claimed in claim 4, wherein the anionic surfactant is sodium dodecyl benzene sulfonate, and the wetting agent is polyoxyethylene ether wetting agent.
6. The fireproof thermal insulation coating of claim 4, wherein the dispersant is a high molecular weight polyammonium acrylate dispersant; the thickening agent is alkali swelling and hydrophobic modified polyurethane thickening agent, and the weight portions of the thickening agent are 1: mixing at a ratio of 1.
7. The fireproof thermal insulation coating as claimed in claim 1, wherein the modifier poly (N-isopropylacrylamide) in the poly (N-isopropylacrylamide) modified magnesium hydroxide has a molecular weight of 8000g/mol and a particle size of 20-32 μm.
8. The fireproof thermal insulation coating of claim 1, wherein the preparation method of the fireproof thermal insulation coating comprises the following steps:
step 1: weighing the raw materials according to the weight ratio of the formula;
step 2: adding a wetting agent, a dispersing agent, an anionic surfactant and a filler into a container, and stirring at a medium speed; adding at least half amount of hydrophobic modified polyurethane thickener, and dispersing uniformly at medium speed;
and step 3: adding acrylic emulsion, urethane acrylate, poly (N-isopropylacrylamide) modified magnesium hydroxide, paraffin phase-change microspheres, opaque polymer, urea, alkali swelling thickener, residual hydrophobic modified polyurethane thickener and other auxiliaries into the product obtained in the step 2, stirring uniformly at a medium speed, filtering, weighing and packaging.
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| CN202110234192.2A CN113105796A (en) | 2021-03-03 | 2021-03-03 | Fireproof heat-insulating coating |
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| CN202110234192.2A CN113105796A (en) | 2021-03-03 | 2021-03-03 | Fireproof heat-insulating coating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115820100A (en) * | 2022-08-08 | 2023-03-21 | 山东奔腾漆业股份有限公司 | Flame-retardant coating containing polyurethane acrylate and preparation method thereof |
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2021
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