CN110467833A - A kind of expansion-type transparent fire-retardant coating of aerogel-congtg and preparation method thereof - Google Patents
A kind of expansion-type transparent fire-retardant coating of aerogel-congtg and preparation method thereof Download PDFInfo
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- CN110467833A CN110467833A CN201910741220.2A CN201910741220A CN110467833A CN 110467833 A CN110467833 A CN 110467833A CN 201910741220 A CN201910741220 A CN 201910741220A CN 110467833 A CN110467833 A CN 110467833A
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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
- C09D1/00—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances
- C09D1/02—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates
- C09D1/04—Coating compositions, e.g. paints, varnishes or lacquers, based on inorganic substances alkali metal silicates with organic additives
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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
- C09D5/185—Intumescent 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
- C09D7/20—Diluents or solvents
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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
Abstract
The present invention discloses a kind of expansion-type transparent fire-retardant coating of aerogel-congtg, is related to fireproof coating technical field, it is poor based on existing water flame-proof paint flame retardant effect, not environmentally the problem of and propose.The present invention is mainly prepared from the following raw materials in parts by weight: 55-70 parts of water, 25-42 parts of silicate, 2-10 parts of aeroge, 0.3-6 parts of wetting agent, 0.5-5 parts of swelling agent, 0.05-1 parts of stabilizer.The present invention also provides the preparation methods by above-mentioned fireproof coating.Use full aqueous solvent the beneficial effects of the present invention are: the present invention, production, construction period will not any organic volatile of industry without environmental pollution be a kind of environmental protection, clean functional form water paint；The ability that fireproof coating prevents calorie spread in flame combustion is enhanced, while also increasing its waterproof ability in use.
Description
Technical field
The present invention relates to fireproof coating technical fields, and in particular to a kind of expansion-type transparent fire-retardant coating of aerogel-congtg and
Preparation method.
Background technique
Fireproof coating is also known as anti-flaming dope, it has the common feed powder that applies decorative, while can hinder when fire occurs
It only burns or extension has retardation rapidly to burning, so that people is made to have time enough to carry out fire rescue work, with
Achieve the purpose that protect people life property safety.
Intumescent coating is expanded foamed when meeting fire, forms froth bed, froth bed has not only completely cut off oxygen, but also has
There is excellent heat-proof quality, the basad transmission of heat of flame can be obstructed.Therefore expanding fire-proof paint is with very good
Flameproof effect.Fireproof coating is divided into oiliness fireproof coating and two kinds of aqueous fire-proof coating at present, and oiliness fireproof coating is using having
Solvent uses a certain proportion of melamine, pentaerythrite and phosphoric acid as paint solvent, such as United States Patent (USP) US10023949
Melamine forms a kind of formula of fire retarding paint after stirring and evenly mixing as acid source and charcoal source raw material and paint component；It is Chinese special
Sharp 104610525 A of CN discloses polyurethane oil-based paint of a kind of halogen-free environmental and preparation method thereof.Oiliness anti-flaming dope production and
It is needed in application process using a large amount of organic solvent and volatile organic matter, environmental pollution is serious, while also having very big
Security risk.Water flame-proof paint is the anti-flaming dope for taking water as a solvent to prepare, have it is environmental-friendly, safely cleaning etc. is excellent
Point, but current water flame-proof paint haves the shortcomings that flame retardant effect is poor.
Summary of the invention
Present invention solves the technical problem that one of be that existing water flame-proof paint flame retardant effect is poor.
The present invention adopts the following technical solutions solves above-mentioned technical problem:
The present invention provides a kind of expansion-type transparent fire-retardant coating of aerogel-congtg, mainly by the raw material system of following parts by weight
At: 55-70 parts of water, 25-42 parts of silicate, 2-10 parts of aerogel powder, 0.3-6 parts of wetting agent, 0.5-5 parts of swelling agent, stablize
0.05-1 parts of agent.
The utility model has the advantages that the fireproof coating visible light-transmissive after the drying that the present invention is prepared using the raw material of above-mentioned weight fraction
Rate is more than 80%, does not influence the appearance of substrate material, and heated rear expansion rate is greater than 10 times, the resistance to combustion time is 30-35min.
Preferably, the silicate is the mixing of one or more of sodium metasilicate, potassium silicate, lithium metasilicate.
Preferably, the aerogel powder is hydrophobic silicon dioxide aerogel powder.
Preferably, the diameter of particle of the aerogel powder is 0.1-500 μm, density 0.03-0.25g/ml, porosity
For 80-99%.
Preferably, the wetting agent is polyoxyethylene sorbitan fatty acid ester, dodecyl sodium sulfate, glycerol, three
Ethanol amine, hexadecyltrimethylammonium chloride, sorbitan fatty acid ester, ceteareth -20, in rilanit special
One or more mixing.
Preferably, the swelling agent is the mixing of one or more of sodium carbonate, sodium bicarbonate, ammonium hydrogen carbonate.
Preferably, the stabilizer is hydroxypropyl methyl cellulose, carboxylic propyl methocel, one in methylcellulose
Kind or a variety of mixing.
Preferably, the expansion-type transparent fire-retardant coating of the aerogel-congtg preparation method the following steps are included:
(1) water, silicate, wetting agent, swelling agent are mixed, mixed liquor 1 is made；
(2) aerogel powder is added in mixed liquor 1, mixed liquor 2 is made；
(3) stabilizer is added in mixed liquor 2, forms mixed liquor 3 after stirring；
(4) mixed liquor 3 is subjected to froth in vacuum, the expansion-type transparent fire-retardant coating of aerogel-congtg is made.
Present invention solves the technical problem that two be to provide the system of the expansion-type transparent fire-retardant coating of above-mentioned aerogel-congtg
Preparation Method.
The present invention adopts the following technical solutions solves above-mentioned technical problem:
The present invention provides a kind of preparation method of the expansion-type transparent fire-retardant coating of aerogel-congtg, comprising the following steps:
(1) 55-70 parts of water, 25-42 parts of silicates, 0.3-6 parts of wetting agents, 0.5-5 parts of swelling agents are mixed, mixing is made
Liquid 1；
(2) 2-10 parts of aerogel powders are added in mixed liquor 1, mixed liquor 2 is made；
(3) 0.05-1 parts of stabilizers are added in mixed liquor 2, form mixed liquor 3 after stirring；
(4) mixed liquor 3 is subjected to froth in vacuum, the expansion-type transparent fire-retardant coating of aerogel-congtg is made.
The utility model has the advantages that the present invention is using fireproof coating made from above-mentioned preparation method, visible light transmittance is more than after the drying
80%, the appearance of substrate material is not influenced, and heated rear expansion rate is greater than 10 times, the resistance to combustion time is 30-35min, preparation process
Do not generate organic volatile, no environmental pollution.
Preferably, the silicate is the mixing of one or more of sodium metasilicate, potassium silicate, lithium metasilicate.
Preferably, the aeroge is hydrophobic silicon dioxide aerogel.
Preferably, the aerogel powder partial size is 0.1-500 μm, density 0.03-0.25g/ml, porosity 80-
99%.
Preferably, the wetting agent is polyoxyethylene sorbitan fatty acid ester, dodecyl sodium sulfate, glycerol, three
Ethanol amine, hexadecyltrimethylammonium chloride, sorbitan fatty acid ester, ceteareth -20, in rilanit special
One or more mixing.
Preferably, the swelling agent is the mixing of one or more of sodium carbonate, sodium bicarbonate, ammonium hydrogen carbonate.
Preferably, the stabilizer is hydroxypropyl methyl cellulose, carboxylic propyl methocel, one in methylcellulose
Kind or a variety of mixing.
Preferably, the vacuum degree in the step (4) when froth in vacuum is 0.6-0.08atm, and the froth in vacuum time is 20-
60min。
The beneficial effects of the present invention are:
(1) visible light transmittance is more than 80% to fireproof coating of the invention after the drying, does not influence the appearance of substrate material,
And heated rear expansion rate is greater than 10 times；
(2) invention enhances fireproof coatings prevents the ability of calorie spread in flame combustion, while also increasing it
Waterproof ability in use；
(3) present invention use full aqueous solvent, production, construction period will not any organic volatile of industry, without environment
Pollution is a kind of environmentally friendly, clean functional form water paint.
Detailed description of the invention
Fig. 1 is the process flow chart of the expansion-type transparent fire-retardant coating of aerogel-congtg of the present invention；
Fig. 2 is the pictorial diagram of the expansion-type transparent fire-retardant coating coating of aerogel-congtg obtained in the embodiment of the present invention 1；
Fig. 3 is the scanning electron microscope of the expansion-type transparent fire-retardant coating coating of aerogel-congtg obtained in the embodiment of the present invention 1
Figure；
Fig. 4 is the scanning electron microscope (SEM) photograph of fireproof paint coating obtained in comparative example 3 of the present invention.
Specific embodiment
The present invention is described in further details below with reference to Figure of description and embodiment.
Test material and reagent as used in the following examples etc., unless otherwise specified, commercially obtain.
In the examples where no specific technique or condition is specified, can according to the literature in the art described technology or
Condition is carried out according to product description.
Fig. 1 is the process flow chart of the expansion-type transparent fire-retardant coating of aerogel-congtg of the present invention.
Embodiment 1
A kind of preparation method of the expansion-type transparent fire-retardant coating of aerogel-congtg, comprising the following steps:
It (1) is 3.3 by modulus, Baume degrees 4.0, content is sodium silicate aqueous solution 100g, the dodecyl sulphur of 34wt%
Sour sodium 3g, sodium carbonate 3g mixing stir 30min under conditions of mixing speed is 500rpm under the action of high degree of dispersion machine；
(2) 5g silica aerogel powder is added in mixed liquor obtained into step (1), is existed using high speed disperser
40min is stirred under conditions of 1300rpm, wherein the average grain diameter of silica aerogel powder is 15 μm, density 0.06g/ml；
The preparation method of aerosil uses the preparation method of patent CN201910079572.6 in the present embodiment, using air-flow
It is 15 μm that silica aerogel powder is crushed to average grain diameter by the method for crushing；
(3) 0.3g hydroxypropyl methyl cellulose is added in mixture obtained into step (2), is existed using high speed disperser
20min is stirred under conditions of 500rpm；
(4) mixed liquor prepared by step (3) is put into vacuum degasing machine when vacuum degree is 0.8atm, vacuum defoamation
Fireproof coating is made in 40min.
Fireproof coating will be made in the present embodiment to be brushed on five layers of glued board with wool brush, dry for 24 hours, coating after drying
With a thickness of 1mm.
Embodiment 2
A kind of preparation method of the expansion-type transparent fire-retardant coating of aerogel-congtg, comprising the following steps:
(1) potassium silicate aqueous solution 100g, dodecyl sodium sulfate 3g, sodium carbonate 3g that content is 25wt% are mixed, In
Under the action of high degree of dispersion machine, 30min is stirred under conditions of mixing speed is 500rpm；
(2) 3g silica aerogel powder is added in mixed liquor obtained into step (1), is existed using high speed disperser
40min is stirred under conditions of 1300rpm, wherein the average grain diameter of silica aerogel powder is 15 μm, density 0.06g/ml；
The preparation method of aerosil uses the preparation method of patent CN201910079572.6 in the present embodiment；Using air-flow
It is 15 μm that silica aerogel powder is crushed to average grain diameter by the method for crushing；
(3) 0.3g hydroxypropyl methyl cellulose is added in mixture obtained into step (2), is existed using high speed disperser
20min is stirred under conditions of 500rpm；
(4) mixed liquor prepared by step (3) is put into vacuum degasing machine when vacuum degree is 0.8atm, vacuum defoamation
Fireproof coating is made in 40min.
Fireproof coating will be made in the present embodiment to be brushed on five layers of glued board with wool brush, dry for 24 hours, coating after drying
With a thickness of 1mm.
Comparative example 1
It (1) is 3.3 by modulus, Baume degrees 4.0, content is sodium silicate aqueous solution 100g, the dodecyl sulphur of 34wt%
Sour sodium 2g, sodium carbonate 3g mixing stir 30min under conditions of mixing speed is 500rpm under the action of high degree of dispersion machine；
(2) 0.5g hydroxypropyl methyl cellulose is added in mixture obtained into step (1), is existed using high speed disperser
20min is stirred under conditions of 500rpm；
(3) mixed liquor prepared by step (2) is put into vacuum degasing machine when vacuum degree is 0.8atm, vacuum defoamation
Coating is made in 40min.
Coating will be made in this comparative example to be brushed on five layers of glued board with wool brush, dry for 24 hours, coating layer thickness after drying
For 1mm.
Comparative example 2
It (1) is 3.3 by modulus, Baume degrees 4.0, content is sodium silicate aqueous solution 100g, the dodecyl sulphur of 34wt%
Sour sodium 2g, sodium carbonate 3g mixing stir 30min under conditions of mixing speed is 500rpm under the action of high degree of dispersion machine；
(2) 20g silica aerogel powder is added in mixed liquor obtained into step (1), uses high speed disperser
40min is stirred under conditions of 1300rpm, wherein the average grain diameter of silica aerogel powder is 15 μm, density 0.06g/
ml；The preparation method of aerosil uses the preparation method of patent CN201910079572.6 in this comparative example；Using
It is 15 μm that silica aerogel powder is crushed to average grain diameter by the method for air-flow crushing；
(3) 0.3g hydroxypropyl methyl cellulose is added in mixture obtained into step (2), is existed using high speed disperser
20min is stirred under conditions of 500rpm；
(4) mixed liquor prepared by step (3) is put into vacuum degasing machine when vacuum degree is 0.8atm, vacuum defoamation
Fireproof coating is made in 40min.
Fireproof coating will be made in this comparative example to be brushed on five layers of glued board with wool brush, dry for 24 hours, coating after drying
With a thickness of 1mm.
Comparative example 3
(GY-0711 polyurethane primer, Jiangsu hat can the limited public affairs of sapecial coating for the conventional polyurethanes oil paint bought in the market
Department)
Comparative example 4
Be in place of this comparative example and the difference of embodiment 1: the average grain diameter of silica aerogel powder is 1000 μm,
Density 0.5g/ml, remaining step are same as Example 1；
Transparency test: it selects with a thickness of 1mm, it is seen that the glass slide of light transmission rate 93% is saturating using the method dip-coating of dipping
Bright fireproof coating, coating thickness are the clear coat of 1mm ± 10%, are tested after coating is 24 hours dry using visible spectrometry
Coating is in the transparency that the transmitance average value of 380nm~780nm wave band is coating.
Measurement result: the transparency and dispersion difficulty of grain diameter influence's coating of aeroge, when the partial size of aeroge is greater than 500
The visible light transmittance of fire resistant coating is zero after μm；When the partial size of aeroge is less than 0.1 μm, wetting dosage will be unable to all divide
Air-dispersing gel powder.
Comparative example 5
It is in place of this comparative example and the difference of embodiment 1: uses the waterglass that modulus is 4.0 for 2.4, Baume degrees；
It (1) is 2.4 by modulus, Baume degrees 4.0, content is sodium silicate aqueous solution 100g, the dodecyl sulphur of 34wt%
Sour sodium 2g, sodium carbonate 3g mixing stir 30min under conditions of mixing speed is 500rpm under the action of high degree of dispersion machine；
(2) 20g silica aerogel powder is added in mixed liquor obtained into step (1), uses high speed disperser
40min is stirred under conditions of 1300rpm, wherein the average grain diameter of silica aerogel powder is 15 μm, density 0.06g/
ml；The preparation method of aerosil uses the preparation method of patent CN201910079572.6 in this comparative example；Using
It is 15 μm that silica aerogel powder is crushed to average grain diameter by the method for air-flow crushing；
(3) 0.3g hydroxypropyl methyl cellulose is added in mixture obtained into step (2), is existed using high speed disperser
20min is stirred under conditions of 500rpm；
(4) mixed liquor prepared by step (3) is put into vacuum degasing machine when vacuum degree is 0.8atm, vacuum defoamation
Fireproof coating is made in 40min.
There is fine crack in the transparent fire-resisting paint surface of this comparative example preparation, and coating expansion rate is 2.4, and flameproof effect is big
It is big to reduce.
Embodiment 3
Coating property in embodiment 1, embodiment 2, comparative example 1, comparative example 2, comparative example 3 is measured
Measuring method:
Adhesive force measurement: it is measured using 1720 paint film adhesion measuring method of GB/T；
Impact resistance measurement: it is measured using 1732 paint film impact resistance measuring method of GB/T；
Water resistance measurement: it is measured using GB/T 1733-1993 paint film water resistance measuring method；
Resistance to combustion time, flame propagation ratio, mass loss, carbonization stereometry: anti-using GB 12441-2005 facing type
Fiery coating testing standard measurement
Expansion rate measurement: brushing coating in the present embodiment using wool brush and brush on five layers of glued board with a thickness of 1mm,
Using flame gun (butane flame) to fire resistant coating carry out calcination stop flame after five minutes, using slide calliper rule to dilation into
The test of row thickness, tests 10 places, is maximized, compare to obtain coating expansion rate with original thickness.
Measurement result is as shown in table 1:
Table 1 is embodiment 1, embodiment 2, comparative example 1, comparative example 2, the test result of comparative example 3
As it can be seen from table 1 aeroge can increase impact resistance, resistance to combustion time and the water resistance of fireproof coating, implement
The fireproof coating prepared in example 1, impact resistance 60kJ/m, resistance to combustion time are 30min, and water resistance is and comparative example 1 for 24 hours
In be not added with the fireproof coating of aeroge, water resistance 5h, the resistance to combustion time is 10min；From comparative example 2 as can be seen that with
Aeroge additive amount increases, and can reduce the adhesive force of coating, increase carbonization volume, while invent the performance of the fireproof coating of preparation
Better than the performance of existing oil paint.
Fig. 2 is the pictorial diagram of the expansion-type transparent fire-retardant coating coating of aerogel-congtg obtained in embodiment 1, and bottom plate is
Corrugated board, it can be seen that transparent fire-resisting paint of the invention has high transparency before inflation.Fig. 3 is in embodiment 1
The scanning electron microscope (SEM) photograph of fire proofing material coating obtained, Fig. 4 are the scanning electron microscope (SEM) photograph of fireproof paint coating obtained in comparative example 3,
From figure 3, it can be seen that aeroge surface obtained is smooth in embodiment 1, from fig. 4, it can be seen that addition aerogel powder is excessive,
Will lead to surface of the paint film cracking and it is coarse, to influence the adhesive force and appearance of paint film.
Embodiment 4
A kind of preparation method of the expansion-type transparent fire-retardant coating of aerogel-congtg, comprising the following steps:
It (1) is 3.3 by modulus, Baume degrees 4.0, content is sodium silicate aqueous solution 100g, the triethanolamine of 34wt%
2.7g, sodium bicarbonate 5g mixing stir 30min under conditions of mixing speed is 800rpm under the action of high degree of dispersion machine；
(2) 6g silica aerogel powder is added in mixed liquor obtained into step (1), is existed using high speed disperser
40min is stirred under conditions of 1300rpm, wherein the average grain diameter of silica aerogel powder is 15 μm, density 0.06g/ml；
The preparation method of aerosil uses the preparation method of patent CN201910079572.6 in the present embodiment；
(3) 0.5g methylcellulose is added in mixture obtained into step (2), using high speed disperser in 500rpm
Under conditions of stir 20min；
(4) mixed liquor prepared by step (3) is put into vacuum degasing machine when vacuum degree is 0.8atm, vacuum defoamation
Fireproof coating is made in 40min.
Fireproof coating will be made in the present embodiment to be brushed on five layers of glued board with wool brush, dry for 24 hours, coating after drying
With a thickness of 1mm.
Embodiment 5
A kind of preparation method of the expansion-type transparent fire-retardant coating of aerogel-congtg, comprising the following steps:
(1) potassium silicate aqueous solution 100g, the sorbitan fatty acid rouge 4.3g, ammonium hydrogencarbonate 3g for being 25wt% by content
Mixing stirs 30min under conditions of mixing speed is 500rpm under the action of high degree of dispersion machine；
(2) 3g silica aerogel powder is added in mixed liquor obtained into step (1), is existed using high speed disperser
40min is stirred under conditions of 1300rpm, wherein the average grain diameter of silica aerogel powder is 15 μm, density 0.06g/ml；
The preparation method of aerosil uses the preparation method of patent CN201910079572.6 in the present embodiment；
(3) 0.3g hydroxypropyl methyl cellulose is added in mixture obtained into step (2), is existed using high speed disperser
20min is stirred under conditions of 500rpm；
(4) mixed liquor prepared by step (3) is put into vacuum degasing machine when vacuum degree is 0.8atm, vacuum defoamation
Fireproof coating is made in 40min.
Fireproof coating will be made in the present embodiment to be brushed on five layers of glued board with wool brush, dry for 24 hours, coating after drying
With a thickness of 1mm.
The above is only the preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-described embodiment,
It is within the scope of the invention with present inventive concept without the various process programs of substantial differences.
Claims (10)
1. a kind of expansion-type transparent fire-retardant coating of aerogel-congtg, it is characterised in that: mainly by the raw material system of following parts by weight
At: 55-70 parts of water, 25-42 parts of silicate, 2-10 parts of aerogel powder, 0.3-6 parts of wetting agent, 0.5-5 parts of swelling agent, stablize
0.05-1 parts of agent.
2. the expansion-type transparent fire-retardant coating of aerogel-congtg according to claim 1, it is characterised in that: the silicate is
The mixing of one or more of sodium metasilicate, potassium silicate, lithium metasilicate.
3. the expansion-type transparent fire-retardant coating of aerogel-congtg according to claim 1, it is characterised in that: the airsetting rubber powder
End is hydrophobic silicon dioxide aerogel powder.
4. the expansion-type transparent fire-retardant coating of aerogel-congtg according to claim 1, it is characterised in that: the wetting agent is
Polyoxyethylene sorbitan fatty acid ester, dodecyl sodium sulfate, glycerol, triethanolamine, hexadecyltrimethylammonium chloride,
Sorbitan fatty acid ester, ceteareth -20, one or more mixing in rilanit special.
5. the expansion-type transparent fire-retardant coating of aerogel-congtg according to claim 1, it is characterised in that: the swelling agent is
The mixing of one or more of sodium carbonate, sodium bicarbonate, ammonium hydrogen carbonate.
6. the expansion-type transparent fire-retardant coating of aerogel-congtg according to claim 1, it is characterised in that: the stabilizer is
The mixing of one or more of hydroxypropyl methyl cellulose, carboxylic propyl methocel, methylcellulose.
7. the expansion-type transparent fire-retardant coating of aerogel-congtg according to claim 1, it is characterised in that: the aerogel-congtg
Expansion-type transparent fire-retardant coating preparation method the following steps are included:
(1) water, silicate, wetting agent, swelling agent are mixed, mixed liquor 1 is made；
(2) aerogel powder is added in mixed liquor 1, mixed liquor 2 is made；
(3) stabilizer is added in mixed liquor 2, forms mixed liquor 3 after stirring；
(4) mixed liquor 3 is subjected to froth in vacuum, the expansion-type transparent fire-retardant coating of aerogel-congtg is made.
8. preparing the preparation method of the expansion-type transparent fire-retardant coating of aerogel-congtg as described in claim 1, it is characterised in that:
The following steps are included:
(1) 55-70 parts of water, 25-42 parts of silicates, 0.3-6 parts of wetting agents, 0.5-5 parts of swelling agents are mixed, mixed liquor 1 is made；
(2) 2-10 parts of aerogel powders are added in mixed liquor 1, mixed liquor 2 is made；
(3) 0.05-1 parts of stabilizers are added in mixed liquor 2, form mixed liquor 3 after stirring；
(4) mixed liquor 3 is subjected to froth in vacuum, the expansion-type transparent fire-retardant coating of aerogel-congtg is made.
9. the preparation method of the expansion-type transparent fire-retardant coating of aerogel-congtg according to claim 8, it is characterised in that: institute
Vacuum degree when stating froth in vacuum in step (4) is 0.6-0.08atm, and the froth in vacuum time is 20-60min.
10. the preparation method of the expansion-type transparent fire-retardant coating of aerogel-congtg according to claim 8, it is characterised in that:
The diameter of particle of the aerogel powder is 0.1-500 μm, density 0.03-0.25g/ml, porosity 80-99%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910741220.2A CN110467833A (en) | 2019-08-12 | 2019-08-12 | A kind of expansion-type transparent fire-retardant coating of aerogel-congtg and preparation method thereof |
Applications Claiming Priority (1)
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| CN110922800A (en) * | 2019-12-10 | 2020-03-27 | 田明亮 | Inorganic coating with dual functions of flame retardance and aldehyde removal and manufacturing method thereof |
| CN112852241A (en) * | 2021-02-01 | 2021-05-28 | 三棵树(上海)新材料研究有限公司 | Water-based steel structure flame-retardant coating and preparation method thereof |
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| CN110922800A (en) * | 2019-12-10 | 2020-03-27 | 田明亮 | Inorganic coating with dual functions of flame retardance and aldehyde removal and manufacturing method thereof |
| CN112852241A (en) * | 2021-02-01 | 2021-05-28 | 三棵树(上海)新材料研究有限公司 | Water-based steel structure flame-retardant coating and preparation method thereof |
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