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 PDFInfo
- Publication number
- 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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- agent
- aeroge
- fire
- proof
- thermal
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- 238000000576 coating method Methods 0.000 title claims abstract description 71
- 239000011248 coating agent Substances 0.000 title claims abstract description 69
- 238000009413 insulation Methods 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title claims abstract description 29
- 239000000843 powder Substances 0.000 claims abstract description 81
- 239000004964 aerogel Substances 0.000 claims abstract description 64
- 239000000919 ceramic Substances 0.000 claims abstract description 22
- 239000000945 filler Substances 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 50
- 239000002002 slurry Substances 0.000 claims description 30
- 239000000839 emulsion Substances 0.000 claims description 27
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 15
- 239000006185 dispersion Substances 0.000 claims description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 13
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 12
- 239000008367 deionised water Substances 0.000 claims description 12
- 229910021641 deionized water Inorganic materials 0.000 claims description 12
- 238000000227 grinding Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000002270 dispersing agent Substances 0.000 claims description 11
- 239000003063 flame retardant Substances 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 11
- 230000004048 modification Effects 0.000 claims description 11
- 238000012986 modification Methods 0.000 claims description 11
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 10
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 10
- 229920005989 resin Polymers 0.000 claims description 10
- 239000011347 resin Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 8
- 229920001971 elastomer Polymers 0.000 claims description 8
- 239000004088 foaming agent Substances 0.000 claims description 8
- 239000000049 pigment Substances 0.000 claims description 8
- 239000003755 preservative agent Substances 0.000 claims description 8
- 230000002335 preservative effect Effects 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 8
- 239000003381 stabilizer Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims description 6
- 239000004114 Ammonium polyphosphate Substances 0.000 claims description 6
- 235000019826 ammonium polyphosphate Nutrition 0.000 claims description 6
- 229920001276 ammonium polyphosphate Polymers 0.000 claims description 6
- 239000002518 antifoaming agent Substances 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- -1 2- hydroxy benzophenone ketone Chemical class 0.000 claims description 5
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- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 5
- 150000002191 fatty alcohols Chemical class 0.000 claims description 5
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 5
- HJIAMFHSAAEUKR-UHFFFAOYSA-N ortho-hydroxybenzophenone Natural products OC1=CC=CC=C1C(=O)C1=CC=CC=C1 HJIAMFHSAAEUKR-UHFFFAOYSA-N 0.000 claims description 5
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 5
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 5
- 229920002635 polyurethane Polymers 0.000 claims description 5
- 239000004814 polyurethane Substances 0.000 claims description 5
- WXMKPNITSTVMEF-UHFFFAOYSA-M sodium benzoate Chemical compound [Na+].[O-]C(=O)C1=CC=CC=C1 WXMKPNITSTVMEF-UHFFFAOYSA-M 0.000 claims description 5
- 239000002562 thickening agent Substances 0.000 claims description 5
- 239000004408 titanium dioxide Substances 0.000 claims description 5
- 239000011787 zinc oxide Substances 0.000 claims description 5
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 4
- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims description 4
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 4
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 4
- 150000001412 amines Chemical class 0.000 claims description 4
- ZRIUUUJAJJNDSS-UHFFFAOYSA-N ammonium phosphates Chemical compound [NH4+].[NH4+].[NH4+].[O-]P([O-])([O-])=O ZRIUUUJAJJNDSS-UHFFFAOYSA-N 0.000 claims description 4
- 239000000440 bentonite Substances 0.000 claims description 4
- 229910000278 bentonite Inorganic materials 0.000 claims description 4
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 4
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- 238000009826 distribution Methods 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 239000011737 fluorine Substances 0.000 claims description 4
- 229910052731 fluorine Inorganic materials 0.000 claims description 4
- 235000011187 glycerol Nutrition 0.000 claims description 4
- 239000004611 light stabiliser Substances 0.000 claims description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 4
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- 230000008569 process Effects 0.000 claims description 4
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- 239000004299 sodium benzoate Substances 0.000 claims description 4
- 235000010234 sodium benzoate Nutrition 0.000 claims description 4
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 4
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 4
- 239000001509 sodium citrate Substances 0.000 claims description 4
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 229910052682 stishovite Inorganic materials 0.000 claims description 4
- WYXIGTJNYDDFFH-UHFFFAOYSA-Q triazanium;borate Chemical compound [NH4+].[NH4+].[NH4+].[O-]B([O-])[O-] WYXIGTJNYDDFFH-UHFFFAOYSA-Q 0.000 claims description 4
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 claims description 4
- 229910052905 tridymite Inorganic materials 0.000 claims description 4
- 238000005303 weighing Methods 0.000 claims description 4
- CHHHXKFHOYLYRE-UHFFFAOYSA-M 2,4-Hexadienoic acid, potassium salt (1:1), (2E,4E)- Chemical compound [K+].CC=CC=CC([O-])=O CHHHXKFHOYLYRE-UHFFFAOYSA-M 0.000 claims description 3
- 229920000877 Melamine resin Polymers 0.000 claims description 3
- 229920002125 Sokalan® Polymers 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 150000001336 alkenes Chemical class 0.000 claims description 3
- 229920003180 amino resin Polymers 0.000 claims description 3
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 claims description 3
- 239000012964 benzotriazole Substances 0.000 claims description 3
- 229910052593 corundum Inorganic materials 0.000 claims description 3
- 239000007822 coupling agent Substances 0.000 claims description 3
- YAMHXTCMCPHKLN-UHFFFAOYSA-N imidazolidin-2-one Chemical compound O=C1NCCN1 YAMHXTCMCPHKLN-UHFFFAOYSA-N 0.000 claims description 3
- 239000006210 lotion Substances 0.000 claims description 3
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 3
- 150000003053 piperidines Chemical class 0.000 claims description 3
- 239000004584 polyacrylic acid Substances 0.000 claims description 3
- 239000004302 potassium sorbate Substances 0.000 claims description 3
- 235000010241 potassium sorbate Nutrition 0.000 claims description 3
- 229940069338 potassium sorbate Drugs 0.000 claims description 3
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 3
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- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 3
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- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims description 2
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- 235000011083 sodium citrates Nutrition 0.000 claims description 2
- 150000003918 triazines Chemical class 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 claims 1
- 229910052573 porcelain Inorganic materials 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 6
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- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 9
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- LYCAIKOWRPUZTN-NMQOAUCRSA-N 1,2-dideuteriooxyethane Chemical compound [2H]OCCO[2H] LYCAIKOWRPUZTN-NMQOAUCRSA-N 0.000 description 1
- 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 description 1
- WBIQQQGBSDOWNP-UHFFFAOYSA-N 2-dodecylbenzenesulfonic acid Chemical compound CCCCCCCCCCCCC1=CC=CC=C1S(O)(=O)=O WBIQQQGBSDOWNP-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
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- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- C09D133/04—Homopolymers or copolymers of esters
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/322—Ammonium phosphate
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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
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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