CN108997911A - A kind of aeroge fire-proof and thermal-insulation coating and preparation method thereof - Google Patents

A kind of aeroge fire-proof and thermal-insulation coating and preparation method thereof Download PDF

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CN108997911A
CN108997911A CN201810755062.1A CN201810755062A CN108997911A CN 108997911 A CN108997911 A CN 108997911A CN 201810755062 A CN201810755062 A CN 201810755062A CN 108997911 A CN108997911 A CN 108997911A
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aeroge
fire
proof
thermal
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CN108997911B (en
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张光明
晁华鑫
张爽
杨浩
侯志国
罗肖宁
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Henan Audemars Pigeut Love And New Materials Co Ltd
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Henan Audemars Pigeut Love And New Materials Co Ltd
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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
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    • 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
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    • C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • 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
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    • 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
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    • 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
    • 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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    • 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
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium
    • 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
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    • C08K3/00—Use of inorganic substances as compounding ingredients
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    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/02—Flame or fire retardant/resistant
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Abstract

The invention discloses a kind of aeroge fire-proof and thermal-insulation coatings and preparation method thereof, by adding aerogel powder and ceramic powder through hydrophilic modifying, auxiliary agent and filler are added according still further to different formulations ratio, configure the coating with fire insulation performance, coating is prepared using the performance characteristics of the three-dimensional net structure of aeroge, it solves the not heat-insulated disadvantage of only preventing fires of existing coating, makes it have insulative properties.Nano-ceramic powder is added in coating simultaneously, the heated rear ceramic of nano-ceramic powder in coating, the ceramic membrane of one layer of expansion is formed in substrate surface, there is one layer of air layer between the film and substrate, isolation flame is contacted with automotive metal material product surface, and by the low thermal conductivity characteristic of aeroge in coating, heat is prevented to transmit to metal surface.This fire-proof and thermal-insulation synergistic effect, it can be ensured that no matter metal part in normal use or when extreme fire incident occurs carries out good barrier action to heat and flame in vehicle, reinforces the fire protecting performance of coating.

Description

A kind of aeroge fire-proof and thermal-insulation coating and preparation method thereof
Technical field
The invention belongs to vehicle fire-proof and thermal-insulation fields, and in particular to a kind of aeroge fire-proof and thermal-insulation coating and its preparation side Method.
Background technique
With science and technology be constantly progressive, China railways, highway construction development grow stronger day by day, people are to material life Requirement increasingly improve, high speed, comfortable modernization air-conditioning visitor/train will become highway/passenger train development direction and master The important indicator that stream, the safety of environment inside car and comfort will be pursued as Bus & Coach Design.
In vehicle structure, although the place such as metal position such as covering, big top and keel is incombustible material, because it is Metal material thermal coefficient is very high, winter, these metal positions will form heat bridge, accelerates interior heat loss；It is summer, external Heat is continually transferred to vehicle interior, both of these case none do not increase the energy consumption of vehicle air conditioning.And when vehicle is being sent out When calamity of lighting a fire, the temperature of these metal materials is even more to rise 700 DEG C or more with millisecond speed.By it is continuous the study found that Automotive metal material surface spraying aeroge fire-proof and thermal-insulation coating is that one kind effectively solves the problems, such as above two convenient and efficient, warp One of approach of Ji.
Only have fire-proof function mostly to the protection of automotive metal material currently on the market, and has ignored heat-proof quality, Not the problem of not can solve interior heat bridge bring energy dissipation in vehicle normal course of operation.
" a kind of aeroge Water-borne inflation type refractory coating and preparation method thereof, " is only with a kind of intumescent in existing patent Fire retardant, expansion effect is poor, and heat insulation is poor, cannot protect for a long time substrate.The present invention uses synergistic expandable flame retardant System, expansion multiplying power is bigger in flame, and fire protecting performance is more excellent.
The patent of invention of entitled " a kind of aeroge water-borne heat-insulating fireproof coating and preparation method thereof ", aeroge modification are adopted Carry out first hydrophobic hydrophilic modifying again with surfactant, surfactant and aeroge with non-bonding in conjunction with, binding force is poor, table Face activating agent is attached to two layers on aeroge surface, and structure is easily destroyed, extremely unstable.The present invention selects structure extremely steady Then fixed hydrophobic aerogel carries out hydrophilic modifying to its surface, structure is more stable in coating, and coating property is excellent to guarantee the quality Phase is long.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provides a kind of aeroge fire-proof and thermal-insulation coating and its preparation side Method, the aeroge fire-proof and thermal-insulation coating have good fire protecting performance, heat-proof quality and Corrosion Protection more particularly to vehicle Fire-proof and thermal-insulation field can be realized simultaneously vehicle fire prevention and heat-insulated protection.
In order to solve the above technical problems, the invention adopts the following technical scheme:
A kind of aeroge fire-proof and thermal-insulation coating, the raw material including following portions by weight are made: resin emulsion 25~55, airsetting rubber powder Body 10~30, stabilizer 0.5 ~ 5, dispersing agent 0.5 ~ 5, coalescing agent 0.5~5, foaming agent 5~10, filler 10~20, thickener 0.5~5, fire retardant 0.5~5, preservative 0.5~5, levelling agent 0.5~5, pigment 0.5~5, organic silicon defoamer 0.5~5, Deionized water 10 ~ 46.
The aeroge fire-proof and thermal-insulation coating further includes modifying agent, and the modifying agent includes silane coupling agent, titanate esters One or more of coupling agent, polyacrylic acid；The quality of the modifying agent is the 0.1% ~ 10% of aerogel powder quality.
The resin emulsion includes water-and acrylate lotion, aqueous polyurethane emulsion, in aqueous epoxy resin emulsion It is one or more.
The aerogel powder is SiO2Airsetting rubber powder, TiO2Airsetting rubber powder, Al2O3Aeroge, LiO aeroge, graphite One or more of alkene aeroge, the granularity of aerogel powder is in 80 mesh ~ 900 mesh.
The stabilizer is ultraviolet absorbing agent, and hindered amine light stabilizer is one such or several；The ultraviolet light Absorbent includes 2- hydroxy benzophenone ketone, benzotriazole, hydroxyl triaryl triazines；The hindered amine light stabilizer packet Include piperidines system, imidazolidinone system, Azacycloalkanone system derivative；The dispersing agent is 5040 dispersing agents, dodecyl benzene sulfonic acid One or more of sodium, fatty alcohol polyoxyethylene ether, calgon.
The filler is one or more of nano aluminium oxide ceramic powder, silicon oxide ceramics powder, zirconia ceramics powder.
One of ethylene glycol that the coalescing agent is, glycerine, pentaerythrite are a variety of；
The foaming agent is one of melamine, ammonium polyphosphate, ammonium phosphate salt, ammonium borate, amino resins or a variety of；
The thickener is one of hydroxyethyl cellulose, sodium carboxymethylcellulose, lithium bentonite or a variety of；
The fire retardant is one of tributyl phosphate, ammonium polyphosphate, aluminium hydroxide, expanded graphite or a variety of；
The preservative is one of potassium sorbate, sodium citrate, sodium benzoate or a variety of；
The levelling agent be organosilicon series levelling agent, acrylate leveling agent, fluorine richness levelling agent, one of or it is a variety of；
The pigment is one of titanium dioxide, zinc oxide, lithopone or a variety of.
The preparation method of the aeroge fire-proof and thermal-insulation coating, comprising the following steps:
(1) preparation of modified aerogels slurry:
A, surface hydrophilic is carried out to aerogel powder by heating or adding 0.1% ~ 10% modifying agent of aerogel powder quality It is modified, aerogel powder surface is modified as in the case where not destroying its three-dimensional net structure hydrophilic, obtains surface hydrophilic and change The aerogel powder of property；
B, surface hydrophilic modification aerogel powder dispersing agent made from step (1) is placed in stirred tank, deionized water is added, Dispersion (1h) is uniformly mixed under the speed of agitator that revolving speed is 2000 ~ 5000 revs/min, and modified aerogels slurry is made；
(2) preparation of aeroge fire-proof and thermal-insulation coating；
A: weighing stabilizer and resin emulsion and be placed in stirred tank, the condition for being 2000 ~ 5000 revs/min in speed of agitator Lower stirring 30min, obtains emulsion paste；
B: emulsion paste is mixed with modified aerogels slurry made from step (1), is 5000 ~ 8000 revs/min in speed of agitator Dispersed under conditions of clock, coalescing agent, fire retardant, foaming agent, filler, pigment, thickening are sequentially added in dispersion process Agent, preservative, defoaming agent and levelling agent pay attention to being slowly added during addition, prevent liquid flash, powder knot Block floats phenomena such as powder；Speed of agitator is promoted to 8000-10000 revs/min of progress high speed dispersion 2h, is later placed in slurry super On sound dispersion machine, slurry is thoroughly uniformly dispersed by ultrasonic disperse 30min；
C: after slurry is uniformly dispersed, being transferred in grinder and carry out grinding distribution, and 2000-5000 revs/min of revolving speed, grinding 2 ~ 3h is uniformly mixed, the aeroge fire-proof and thermal-insulation coating of appearance exquisiteness after grinding.
When the step (1) prepares modified aerogels slurry, hydrophilic change is carried out to aerogel powder by way of heating Property heating temperature be 200-500 DEG C, heating time 30min-2h.
Beneficial effects of the present invention: the present invention takes into account fire prevention and heat-insulated two contents and carries out disposition to vehicle, The heat-proof quality that aerogel material high degree improves coating is added in formula.Full vehicle is thermally shielded when vehicle operates normally Protection, good heat-insulation and heat-preservation and seal approach can protect interior air-conditioning and be able to play reduction energy consumption, reduces heat loss, improves With the economy of the comfort and operation that improve passenger.The nano-ceramic powder of addition greatly improves the fire protecting performance of coating. In the case of fire, heat diffusion can be delayed, fire endurance period is prevented to burn, increase passenger and escape the time.
The preparation method of aeroge fire-proof and thermal-insulation coating disclosed in the invention patent, the aeroge fire-proof and thermal-insulation coating is by gas Gel powder and resin emulsion and other coating additives, filler are combined, and the present invention is using aerogel powder and ceramic material Feed powder body is as fire-proof and thermal-insulation filler.Aeroge is a kind of nano-porous materials with tridimensional network, structure-controllable. Aeroge density is in 3 ~ 500mg/cm3Between it is adjustable, be most light solid material in the world at present, porosity 80% ~ 99.8%, Between 2 ~ 50nm, specific surface area is up to 1000m in aperture2/g.Because of the unique nano-porous structure of aeroge, thermal coefficient pole It is low, the minimum reachable 0.017W/ (m K) of thermal coefficient at normal temperature.
The transmitting of heat is divided into 3 kinds of heat transfer, thermal convection and heat radiation approach.And aeroge can be directed to these three heat transfer sides Formula synergistic effect, effectively isolation heat transfer, have excellent heat-proof quality.
1, in terms of heat transfer, heat is transmitted along aeroge skeleton, since there are a large amount of nano-pores in aerogel structure Gap largely increases the channel of heat transfer, and for heat during transmitting along almost limitless channel, energy is not by Disconnected consumption, pyroconductivity are very low.Simultaneously because the presence of expansion ceramic film layer, the air layer of formation has also further obstructed heat Transmitting.
2, in terms of thermal convection, since aeroge internal void is in 2 ~ 50nm, than the mean free path of gas molecule motion 70nm wants small, cannot form convection current in aeroge internal gas molecule, the heat of conduction heat transfer is with regard to very little.
3, in terms of heat radiation, due to the presence of holes a large amount of in aerogel structure, these pore walls are equivalent to " countless screenings The effect of positive plate " largely reduces heat radiation heat transfer, also at a fairly low by the heat of radiant heat transfer.And due to Aeroge is inorganic material, is had the function of non-ignitable and fire-retardant.
The invention patent carries out formula using the above feature of aeroge and mixes new coating, while being added in coating Nano-ceramic powder, ceramic after nano-ceramic powder in coating is heated, forms the ceramic membrane of one layer of expansion in substrate surface, should There is one layer of air layer between film and substrate, isolation flame is contacted with automotive metal material product surface, and by airsetting in coating The low thermal conductivity characteristic of glue prevents heat from transmitting to metal surface.Compared to the expansion carbon-coating of traditional coating, coating of the present invention Expansion ceramic film-strength is big, it is long to continue the protective action time in flame, it can be ensured that metal part is in normal use in vehicle Heat transmitting is reduced, flame carries out good barrier action when extreme fire incident occurs, and the present invention further strengthens coating Fire protecting performance.
Detailed description of the invention
It in environment temperature is 25 DEG C that Fig. 1, which is aeroge fire-proof and thermal-insulation coating made from embodiment 4, and hot-face temperature is 80 DEG C of feelings Under condition, different coating thickness coldface temperature curve.
Specific embodiment
Combined with specific embodiments below, the present invention will be further described.It should be understood that following embodiment is merely to illustrate this The person skilled in the art of the range of invention and is not intended to limit the present invention, the field can make one according to the content of foregoing invention A little nonessential modifications and adaptations.
Embodiment 1
A kind of aeroge fire-proof and thermal-insulation coating, the raw material including following portions by weight are made: aqueous polyurethane emulsion 20, aqueous ring Oxygen resin emulsion 15, graphene aerogel 25,2- hydroxy benzophenone ketones derivant 2, piperidines system derivative 2, calgon 3, ethylene glycol 3, ammonium borate 4, amino resins 5, zirconia ceramics powder 18, hydroxyethyl cellulose 4, tributyl phosphate 2.5, benzoic acid Sodium 2, organosilicon series levelling agent 4, titanium dioxide 2, organic silicon defoamer 2.5, deionized water 30.
The preparation method of the aeroge fire-proof and thermal-insulation coating of the present embodiment, comprising the following steps:
(1) preparation of modified aerogels slurry:
A, 30min-2h is heated to aerogel powder under conditions of heating temperature is 200-500 DEG C and carries out surface hydrophilic modification, Aerogel powder surface is modified as in the case where not destroying its three-dimensional net structure hydrophilic, obtains the gas of surface hydrophilic modification Gel powder；
B, surface hydrophilic modification aerogel powder made from step (1) and dispersing agent are placed in stirred tank, deionized water are added, In the case where revolving speed is 2000 ~ 5000 revs/min of speed of agitator, dispersion (1h) is uniformly mixed, and modified aerogels slurry is made；
(2) preparation of aeroge fire-proof and thermal-insulation coating；
A: weighing stabilizer and resin emulsion and be placed in stirred tank, the condition for being 2000 ~ 5000 revs/min in speed of agitator Lower stirring 30min, obtains emulsion paste；
B: emulsion paste is mixed with modified aerogels slurry made from step (1), is 5000 ~ 8000 revs/min in speed of agitator Dispersed under conditions of clock, coalescing agent, fire retardant, foaming agent, filler, pigment, thickening are sequentially added in dispersion process Agent, preservative, defoaming agent and levelling agent pay attention to being slowly added during addition, prevent liquid flash, powder knot Block floats phenomena such as powder；Speed of agitator is promoted to 8000-10000 revs/min of progress high speed dispersion 2h, is later placed in slurry super On sound dispersion machine, slurry is thoroughly uniformly dispersed by ultrasonic disperse 30min；
C: after slurry is uniformly dispersed, being transferred in grinder and carry out grinding distribution, and 2000-5000 revs/min of revolving speed, grinding 2 ~ 3h is uniformly mixed, the aeroge fire-proof and thermal-insulation coating of appearance exquisiteness after grinding.
Embodiment 2
A kind of aeroge fire-proof and thermal-insulation coating, the raw material including following portions by weight are made: aqueous polyurethane emulsion 40, LiO gas Gel 24,2- hydroxy benzophenone ketone 3, fatty alcohol polyoxyethylene ether 2, glycerine 2, pentaerythrite 2, ammonium phosphate salt 7, silica Ceramic powder 12, sodium carboxymethylcellulose 2, aluminium hydroxide 0.5, expanded graphite 0.5, sodium benzoate 1.5, acrylate leveling agent 0.5, fluorine richness levelling agent 0.5, titanium dioxide 2, zinc oxide 2, organic silicon defoamer 3, deionized water 20.
The preparation method of the aeroge fire-proof and thermal-insulation coating of the present embodiment, comprising the following steps:
(1) preparation of modified aerogels slurry:
A, 30min-2h is heated to aerogel powder under conditions of heating temperature is 200-500 DEG C and carries out surface hydrophilic modification, Aerogel powder surface is modified as in the case where not destroying its three-dimensional net structure hydrophilic, obtains the gas of surface hydrophilic modification Gel powder；
Other embodiments are the same as embodiment 1.
Embodiment 3
A kind of aeroge fire-proof and thermal-insulation coating, the raw material including following portions by weight are made: aqueous epoxy resin emulsion 45, TiO2 Airsetting rubber powder 15, imidazolidinone system derivative 1, fatty alcohol polyoxyethylene ether 1.5, ethylene glycol 2, ammonium borate 6, zirconia ceramics powder 14, lithium bentonite 1.5, expanded graphite 3, sodium citrate 3.5, acrylate leveling agent 3, zinc oxide 1.5, organic silicon defoamer 1, deionized water 40.
The preparation method of the aeroge fire-proof and thermal-insulation coating of the present embodiment, comprising the following steps:
(1) preparation of modified aerogels slurry:
A, 30min-2h is heated to aerogel powder under conditions of heating temperature is 200-500 DEG C and carries out surface hydrophilic modification, Aerogel powder surface is modified as in the case where not destroying its three-dimensional net structure hydrophilic, obtains the gas of surface hydrophilic modification Gel powder；
Other embodiments are the same as embodiment 1.
Embodiment 4
A kind of aeroge fire-proof and thermal-insulation coating, the raw material including following portions by weight are made: water-and acrylate lotion 30, SiO2 Airsetting rubber powder 20,2- hydroxy benzophenone ketone 2,5040 dispersing agents 3, ethylene glycol 2.5, melamine 8, nano aluminium oxide ceramic powder 15, hydroxyethyl cellulose 3, tributyl phosphate 2, potassium sorbate 3, organosilicon series levelling agent 2.5, titanium dioxide 3, organosilicon defoaming Agent 3, deionized water 25, the aeroge fire-proof and thermal-insulation coating further include account for aerogel powder quality 5% modifying agent it is silane coupled Agent.
The preparation method of the aeroge fire-proof and thermal-insulation coating of the present embodiment, comprising the following steps:
(1) preparation of modified aerogels slurry:
A, 0.1% modifying agent that aerogel powder quality is added into aerogel powder carries out surface hydrophilic to aerogel powder It is modified, aerogel powder surface is modified as in the case where not destroying its three-dimensional net structure hydrophilic, obtains surface hydrophilic and change The aerogel powder of property；
B, hydrophilic modifying aerogel powder made from step (1) and dispersing agent are placed in stirred tank, deionized water is added, turned Speed is uniformly mixed for dispersion (1h) under 2000 ~ 5000 revs/min of speed of agitator, and modified aerogels slurry is made；
(2) preparation of aeroge fire-proof and thermal-insulation coating；
A: weighing stabilizer and resin emulsion and be placed in stirred tank, the condition for being 2000 ~ 5000 revs/min in speed of agitator Lower stirring 30min, obtains emulsion paste；
B: emulsion paste is mixed with modified aerogels slurry made from step (1), is 5000 ~ 8000 revs/min in speed of agitator Dispersed under conditions of clock, sequentially adds coalescing agent every 5-10min in dispersion process, fire retardant, foaming agent, fills out Material, pigment, thickener, preservative, defoaming agent and levelling agent pay attention to being slowly added during addition, prevent liquid Phenomena such as body flashes, powder is floated in powder agglomeration；Speed of agitator is promoted to 8000-10000 revs/min of progress high speed dispersion 2h, it Slurry is placed in ultrasonic disperse machine afterwards, ultrasonic disperse 30min, slurry is thoroughly uniformly dispersed；
C: after slurry is uniformly dispersed, being transferred in grinder and carry out grinding distribution, and 2000-5000 revs/min of revolving speed, grinding 2 ~ 3h is uniformly mixed, the aeroge fire-proof and thermal-insulation coating of appearance exquisiteness after grinding.
It is 25 DEG C that Fig. 1, which is in environment temperature, anti-using aeroge made from the present embodiment in the case of hot-face temperature is 80 DEG C Fiery insulating moulding coating different coating thickness coldface temperature curve.As seen from Figure 1, when hot-face temperature is that 80 DEG C of coating layer thicknesses are only When 0.5mm, coldface temperature can be reduced to 68.5 DEG C；When coating reaches with a thickness of 4mm, coldface temperature can be reduced to 30.3 DEG C, Reduction amplitude reaches 62%.It is possible thereby to prove that the present invention has obvious excellent heat insulation.
Embodiment 5
A kind of aeroge fire-proof and thermal-insulation coating, the raw material including following portions by weight are made: aqueous polyurethane emulsion 25, TiO2Gas Gel powder 30, Azacycloalkanone system derivative 0.5, neopelex 5, glycerine 0.5, ammonium polyphosphate 10, silica Ceramic powder 6, zirconia ceramics powder 4, hydroxyethyl cellulose 3, sodium carboxymethylcellulose 2, ammonium polyphosphate 0.5, sodium citrate 5, third Olefin(e) acid ester levelling agent 0.5, zinc oxide 5, organic silicon defoamer 0.5, deionized water 46, the aeroge fire-proof and thermal-insulation coating are also wrapped Include the modifying agent titanate coupling agent for accounting for aerogel powder quality 10%.
The preparation method of the aeroge fire-proof and thermal-insulation coating of the present embodiment, comprising the following steps:
(1) preparation of modified aerogels slurry:
A, 10% modifying agent that aerogel powder quality is added into aerogel powder carries out surface hydrophilic to aerogel powder and changes Property, other embodiments are the same as embodiment 4.
Embodiment 6
A kind of aeroge fire-proof and thermal-insulation coating, the raw material including following portions by weight are made: aqueous epoxy resin emulsion 55, SiO2 Aeroge 5, Al2O3Aeroge 5, benzotriazole 5, fatty alcohol polyoxyethylene ether 0.5, pentaerythrite 5, ammonium phosphate salt 5, oxidation Zircon ceramic powder 20, lithium bentonite 0.5, (aluminium hydroxide 2.5, expanded graphite 2.5, sodium benzoate 0.5, levelling agent fluorine richness stream Flat agent 5, lithopone 0.5, organic silicon defoamer 5, deionized water 10, the aeroge fire-proof and thermal-insulation coating further includes accounting for aeroge The modifying agent polyacrylic acid of powder quality 5%.
The preparation method of the aeroge fire-proof and thermal-insulation coating of the present embodiment, comprising the following steps:
(1) preparation of modified aerogels slurry:
A, 5% modifying agent that aerogel powder quality is added into aerogel powder carries out surface hydrophilic to aerogel powder and changes Property, other embodiments are the same as embodiment 4.
Basic principles and main features and advantages of the present invention of the invention have been shown and described above.The skill of the industry Art personnel it should be appreciated that the present invention is not limited to the above embodiments, the above embodiments and description only describe The principle of the present invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these Changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and Its equivalent thereof.

Claims (9)

1. a kind of aeroge fire-proof and thermal-insulation coating, it is characterised in that: the raw material including following portions by weight is made: resin emulsion 25 ~55, aerogel powder 10~30, stabilizer 0.5 ~ 5, dispersing agent 0.5 ~ 5, coalescing agent 0.5~5, foaming agent 5~10, filler 10~20, thickener 0.5~5, fire retardant 0.5~5, preservative 0.5~5, levelling agent 0.5~5, pigment 0.5~5, organosilicon Defoaming agent 0.5~5, deionized water 10 ~ 46.
2. aeroge fire-proof and thermal-insulation coating according to claim 1, it is characterised in that: further include modifying agent, described changes Property agent includes one or more of silane coupling agent, titanate coupling agent, polyacrylic acid；The quality of the modifying agent is airsetting The 0.1% ~ 10% of rubber powder weight.
3. aeroge fire-proof and thermal-insulation coating according to claim 1, it is characterised in that: the resin emulsion includes aqueous third One of olefin(e) acid ester lotion, aqueous polyurethane emulsion, aqueous epoxy resin emulsion are a variety of.
4. aeroge fire-proof and thermal-insulation coating according to claim 1, it is characterised in that: the aerogel powder is SiO2 Airsetting rubber powder, TiO2Airsetting rubber powder, Al2O3One or more of aeroge, LiO aeroge, graphene aerogel, aeroge The granularity of powder is in 80 mesh ~ 900 mesh.
5. aeroge fire-proof and thermal-insulation coating according to claim 1, it is characterised in that: the stabilizer is ultraviolet radiation absorption Agent, hindered amine light stabilizer are one such or several；The ultraviolet absorbing agent includes 2- hydroxy benzophenone ketone, benzo Triazole type, hydroxyl triaryl triazines；The hindered amine light stabilizer includes piperidines system, imidazolidinone system, Azacycloalkanone It is derivative；The dispersing agent is 5040 dispersing agents, neopelex, fatty alcohol polyoxyethylene ether, calgon One or more of.
6. aeroge fire-proof and thermal-insulation coating according to claim 1, it is characterised in that: the filler is nano aluminium oxide pottery One or more of porcelain powder, silicon oxide ceramics powder, zirconia ceramics powder.
7. aeroge fire-proof and thermal-insulation coating according to claim 1, it is characterised in that: the second two that the coalescing agent is One of alcohol, glycerine, pentaerythrite are a variety of；
The foaming agent is one of melamine, ammonium polyphosphate, ammonium phosphate salt, ammonium borate, amino resins or a variety of；
The thickener is one of hydroxyethyl cellulose, sodium carboxymethylcellulose, lithium bentonite or a variety of；
The fire retardant is one of tributyl phosphate, ammonium polyphosphate, aluminium hydroxide, expanded graphite or a variety of；
The preservative is one of potassium sorbate, sodium citrate, sodium benzoate or a variety of；
The levelling agent be organosilicon series levelling agent, acrylate leveling agent, fluorine richness levelling agent, one of or it is a variety of；
The pigment is one of titanium dioxide, zinc oxide, lithopone or a variety of.
8. the preparation method of -7 any aeroge fire-proof and thermal-insulation coatings according to claim 1, it is characterised in that including with Lower step:
(1) preparation of modified aerogels slurry:
A, surface hydrophilic is carried out to aerogel powder by heating or adding 0.1% ~ 10% modifying agent of aerogel powder quality It is modified, aerogel powder surface is modified as in the case where not destroying its three-dimensional net structure hydrophilic, obtains surface hydrophilic and change The aerogel powder of property；
B, surface hydrophilic modification aerogel powder made from step (1) and dispersing agent are placed in stirred tank, deionized water are added, In the case where revolving speed is 2000 ~ 5000 revs/min of speed of agitator, dispersion (1h) is uniformly mixed, and modified aerogels slurry is made；
(2) preparation of aeroge fire-proof and thermal-insulation coating；
A: weighing stabilizer and resin emulsion and be placed in stirred tank, the condition for being 2000 ~ 5000 revs/min in speed of agitator Lower stirring 30min, obtains emulsion paste；
B: emulsion paste is mixed with modified aerogels slurry made from step (1), is 5000 ~ 8000 revs/min in speed of agitator Dispersed under conditions of clock, coalescing agent, fire retardant, foaming agent, filler, pigment, thickening are sequentially added in dispersion process Agent, preservative, defoaming agent and levelling agent, the time interval for adding each component is 5-10min, and speed of agitator is promoted to 8000- Slurry, is placed in ultrasonic disperse machine by 10000 revs/min of progress high speed dispersion 2h later, ultrasonic disperse 30min, and slurry is thorough Bottom is uniformly dispersed；
C: after slurry is uniformly dispersed, being transferred in grinder and carry out grinding distribution, and 2000-5000 revs/min of revolving speed, grinding 2 ~ 3h is uniformly mixed, the aeroge fire-proof and thermal-insulation coating of surface exquisiteness after grinding.
9. the preparation method of aeroge fire-proof and thermal-insulation coating according to claim 8, it is characterised in that: the step (1) When preparing modified aerogels slurry, the heating temperature for carrying out hydrophilic modifying to aerogel powder by way of heating is 200- 500 DEG C, heating time 30min-2h.
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