CN103466998A - Carbon aerogel thermal insulation material and preparation method thereof - Google Patents
Carbon aerogel thermal insulation material and preparation method thereof Download PDFInfo
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- CN103466998A CN103466998A CN2013104211219A CN201310421121A CN103466998A CN 103466998 A CN103466998 A CN 103466998A CN 2013104211219 A CN2013104211219 A CN 2013104211219A CN 201310421121 A CN201310421121 A CN 201310421121A CN 103466998 A CN103466998 A CN 103466998A
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Abstract
Aiming at the problems in the prior art that the silica aerogel is high in price and the heat conductivity coefficient of an ordinary thermal insulation material is large, the invention particularly relates to a carbon aerogel thermal insulation material and a preparation method thereof. The carbon aerogel thermal insulation material consists of the following components in parts by weight: 100 parts of a man-made inorganic fiber, 0-200 parts of a carbon material, 0.5-2.0 parts of a dispersing agent and 0.5-2.0 parts of an adhering agent. The carbon aerogel thermal insulation material provided by the invention can be a powder material, a slurry material, a felt material or a plate material in state. The carbon aerogel thermal insulation material has the advantages of small heat conductivity coefficient and moderate price, is easy to construct and popularize, and can be widely applied to insulation of buildings, industrial equipment and pipelines; and the preparation method is low in cost and simple and easy to operate.
Description
Technical field
The invention belongs to the heat preserving and insulating material field, particularly a kind of carbon aerogels heat preserving and insulating material and preparation method thereof.
Background technology
The nineties in last century, the scientific research personnel of US National Aeronautics and Space Administration (NASA) researches and develops the adiabatic reflection of a kind of novel space enamel coating (Therma-Cover) of employing for solving aerospacecraft heat transfer control problem, this material is that the small ceramic particle be suspended in the inertia latex by some forms, it has the thermal properties such as high-reflectivity, high radiant rate, low thermal conductivity, low heat storage coefficient, has remarkable heat insulating reflecting function.This hitech materials promotes the use of the people by space industry abroad, for building and industrial plants, and has exported to China, for some large scale industry facilities.But blemish in an otherwise perfect thing, this material expensive price makes domestic many industries hope thing heave a sigh really, is difficult to bear.
The same NASA of NASA researches and develops and has made the type material aerogel for the isolated extraneous high low temperature of solution suit, and this material full name is aerosil.Because aerogel has nano-porous structure, density is low, and voidage is high, the specific surface area high, thus make aerogel there is extremely low thermal conductivity, there is valuable application potential in heat preservation and insulation field.In aerogel research, the product that silica aerogel is gazed at jointly for everybody, the whole world has dropped into a large amount of manpowers, material resources, financial resources are studied and application and development, and this product has obtained application in many high-tech areas, but the price that it is high still can't be promoted in the general industry application.
Summary of the invention
For solving above technical problem, the present invention is directed in prior art silica aerogel expensive, and the problem such as common heat preserving and insulating material thermal conductivity is large, a kind of carbon aerogels heat preserving and insulating material and preparation method are provided, this carbon aerogels heat preserving and insulating material thermal conductivity is little, moderate, be easy to construction and promote, can be widely used in building, industrial equipments and piping insulation; Preparation method's cost is low, simple, easy handling.
Solve a kind of carbon aerogels heat preserving and insulating material in the present invention of above technical problem, formed by manmade inorganic fibre, carbon material, dispersion agent and caking agent, wherein, the ratio of quality and the number of copies of each component for example under:
Manmade inorganic fibre 100
Carbon material 0-200
Dispersion agent 0.5-2.0
Caking agent 0.5-2.0
The mass fraction ratio of above-mentioned each component can be preferably as follows:
Manmade inorganic fibre 100
Carbon material 20-80
Dispersion agent 1.0-1.5
Caking agent 1.0-1.5
Described manmade inorganic fibre can be selected from glass fibre, aluminum silicate fiber, rock mineral wool fibre, sapphire whisker, containing any one or a few the mixture in zirconium fiber, artificial mullite fiber, haplobasalt fiber, quartz glass fibre, boron fibre etc.
The mixture of any one or a few in the optional self-expanding graphite of described carbon material, graphite, gac, charcoal, carbon black etc.
Above-mentioned dispersion agent can be selected from succinate sodium sulfonate, triethanolamine oleate, coconut oil diethanol amide, dodecylbenzene Soxylat A 25-7, castor oil polyoxyethylene ether, the mixture of any one or a few in ether of cellulose etc.
Optional any one or a few the mixture in polyacrylate dispersion, VAE emulsion, vinyl acetate emulsion, organosilicon crylic acid latex, benzene emulsion etc. of described caking agent.
Carbon aerogels heat preserving and insulating material in the present invention, on form, can be powder, can be slurry, can be also felt material or sheet material.
Prepare the step of powder material for by formula, each starting material being added in dry-powder mixer and mix, get final product.
The preparation slurry stage is that (1) is by formula weighing each component;
(2), in high-speed mixing equipment, according to the 5-100 of formula constituent total mass in step (1), doubly add water;
(3) add successively caking agent and dispersion agent, stir 20-40min;
(4) add successively again manmade inorganic fibre, the carbon material of described proportioning, stir 20-50min, make slurry, obtain;
This slurry can directly be used, and in-place forming is coated on equipment surface, or does caking agent and use, and in the use procedure of insulation equipment, the high temperature of equipment makes material airsetting gel;
Preparing the described step of felt material or sheet material is:
(1) by formula weighing each component;
(2), in high-speed mixing equipment, according to the 5-100 of formula constituent total mass in step (1), doubly add water;
(3) add successively caking agent and dispersion agent, stir 20-40min;
(4) add successively again manmade inorganic fibre, the carbon material of described proportioning, stir 20-50 min, make slurry;
(5) slurry step (4) made is poured in mould, by the vacuum suck method, sloughs moisture, or drips and anhydrate minute by placing nature, or sloughs moisture by compacting, and moulding obtains flaky material;
(6) flaky material step (5) obtained is dried, temperature 100-150 ℃;
(7) flaky material step (6) obtained is 200-300 ℃ of expansion, and the airsetting gel, obtain.
Carbon aerogels heat preserving and insulating material in the present invention is soft radiationless, and without the convection current heat preserving and insulating material, the normal temperature thermal conductivity is 0.02-0.03W/ (mK), and at the temperature of 450-550 ℃, its thermal conductivity is 0.07--0.085W/ (mK).
In the present invention, the beneficial effect of carbon aerogels heat preserving and insulating material is:
(1) low, the good heat insulating of thermal conductivity: by carbon material and the compound and heat preserving and insulating material that obtains of inorganic fibre, carbon material is dispersed in fiber, moulding, dehydrate after, high-temperature expansion, the airsetting gel is processed, carbon aerogels class material is filled full interfibrous space, makes the air in heat preserving and insulating material can not unrestricted flow, and unmatchful miscarriage is given birth to; And the carbon material of black has stoped thermal radiation fully.The normal temperature thermal conductivity is 0.02-0.03W/ (mK), and under the high temperature of 500 ℃, its thermal conductivity is between 0.07--0.085W/ (mK).
And the normal temperature thermal conductivity of the common inorganic fibrous mats of aerogel-congtg and composite silicate thermal insulation felt is not 0.045W/ (mK), the thermal conductivity at the temperature of 500 ℃ is between 0.15-0.18W/ (mK).
(2) moderate, there is great using value and market potential: a kind of carbon aerogels heat preserving and insulating material of the present invention, with respect to silica aerogel class material, has great price advantage.The price of silica aerogel product is at 1000-2000 unit/kilogram, and prepared heat preserving and insulating material price is extremely expensive, can not use by spread.And the price of the carbon materials such as expanded graphite is 15-25 unit/kilogram, prepared heat preserving and insulating material price is significantly less than the prepared heat preserving and insulating material of silica aerogel, suits large area to popularize.
(3), having kept soft, do not burn, thermal conductivity is little, be easy to the advantage such as construction in, a kind of carbon aerogels heat preserving and insulating material of the present invention material, fully containing fibrous magnesium silicate, meets the requirement of Occupational health protection and environment protection.
Embodiment
Foregoing invention content below in conjunction with embodiment to a kind of carbon aerogels heat preserving and insulating material of the present invention material is described in further detail.
But this should be interpreted as to the scope of the above-mentioned theme of the present invention only limits to following embodiment.Without departing from the idea case in the present invention described above, according to ordinary skill knowledge and customary means, make various replacements and change, all should comprise within the scope of the invention.
No matter be powder, slurry, or felt material, sheet material, just apply the different of form, total invention thinking is consistent with formula, when needing the thermal conductivity of test material, finally all needs to make felt material or sheet material, so, do not do in the situation of special instruction, embodiment makes felt material or sheet material, but the carbon aerogels heat insulating powder that therefore explanation makes by thinking of the present invention and formula and slurry are not within the scope of the present invention.
According to general plotting of the present invention, the contriver has manufactured experimently carbon aerogels heat insulating felt material or the sheet material of many batches of different ingredients components, and measures by the following method the correlated performance parameter of Comparative Examples and each embodiment sample:
(1), thermal conductivity:
On thermal conductivity measuring apparatus, by GB GB/T10294-2008 standard test, measuring temperature is 500 ℃.
(2), combustionproperty:
Directly with the lighter naked light, light, see and whether burn.
Directly from market, buy gained with Comparative Examples 1-2(respectively) compare, investigate its heat conductivility and combustion case.
Comparative Examples 1
The thick common pure aluminium silicate insulation quilt of 20mm.
Comparative Examples 2
20mm thick fiber comprehensive silicon aerogel blanket.
embodiment 1
A kind of carbon aerogels heat preserving and insulating material, main ingredient comprises: manmade inorganic fibre, expanded graphite, dispersion agent, caking agent etc., wherein, each constituent mass is than as follows:
Aluminum silicate fiber 100
Expanded graphite 0
Coconut oil diethanol amide 0.5
Vinyl acetate emulsion 0.5
According to the technique comprised the steps, produced:
(1), in high-speed mixing equipment, add water according to 5 times of said components (manmade inorganic fibre, carbon material, dispersion agent, caking agent) total mass, start high-speed stirring;
(2) coconut oil diethanol amide and the vinyl acetate emulsion that add, successively described proportioning, stir 20 minutes;
(3) aluminum silicate fiber, the expanded graphite that add, successively described proportioning, stir 20 minutes, makes slurry;
(4), slurry that step (3) is made pours in mould, by the vacuum suck method, sloughs moisture, or drips and anhydrates minute by placing nature, or slough moisture by compacting, moulding obtains flaky material;
(5) flaky material, step (4) obtained is 100 ℃ of oven dry;
(6), flaky material that step (5) is obtained is 200 ℃ of expansions, the airsetting gel, obtain a kind of carbon aerogels heat preserving and insulating material.
Take this carbon aerogels heat preserving and insulating material is sample, tests above-mentioned several performances.
embodiment 2
A kind of carbon aerogels heat preserving and insulating material, main ingredient comprises: manmade inorganic fibre, expanded graphite, dispersion agent, caking agent etc., wherein, each constituent mass is than as follows:
Basalt fibre 100
Expanded graphite 200
Coconut oil diethanol amide 0.5
Succinate sodium sulfonate 1.5
Benzene emulsion 2.0
According to the technique comprised the steps, produced:
(1), in high-speed mixing equipment, add water according to 100 times of said components (manmade inorganic fibre, carbon material, dispersion agent, caking agent) total mass, start high-speed stirring;
(2) add, successively coconut oil diethanol amide, succinate sodium sulfonate and the benzene emulsion of described proportioning, stir 40 minutes;
(3) basalt fibre, the expanded graphite that add, successively described proportioning, stir 50 minutes, makes slurry;
(4), slurry that step (3) is made pours in mould, by the vacuum suck method, sloughs moisture, or drips and anhydrates minute by placing nature, or slough moisture by compacting, moulding obtains flaky material;
(5) flaky material, step (4) obtained is 150 ℃ of oven dry;
(6), flaky material that step (5) is obtained is 300 ℃ of expansions, the airsetting gel, obtain a kind of carbon aerogels heat preserving and insulating material.
Take this carbon aerogels heat preserving and insulating material is sample, tests above-mentioned several performances.
Some materials have the feature of aerogel, such as closed-cell expanded perlite, and expanded vermiculite, diatomite, expanded graphite, gac etc., control certain processing condition, makes material internal produce nano level space, in space, air is solidified, can't unrestricted flow, just there is the characteristic of aerogel.
Carbon material is by after processing, and just may have the characteristic of aerogel: as gac, density is little, and volume is large, and surface-area is large, and thermal conductivity is little, as heat preserving and insulating material, just has good effect; Expanded graphite is the ideal material of making aerogel, the expansion multiplying power of expanded graphite is at 10-350, after expanding, the apparent density of material is at 3-100 kilogram/cubic meter, and voidage is up to 90-99.7%, bore hole size 1-100nm, many physical parameters are all almost suitable with silica aerogel, there is low-down thermal conductivity, and carbon material conveniently is easy to get, low price, make heat preserving and insulating material by suitable mode and technique, there is great using value and market potential.
embodiment 3
A kind of carbon aerogels heat preserving and insulating material, main ingredient comprises: manmade inorganic fibre, carbon material, dispersion agent, caking agent etc., wherein, each constituent mass is than as follows:
Basalt fibre 50
Artificial mullite fiber 50
Expanded graphite 10
Gac 10
Succinate sodium sulfonate 0.2
Ether of cellulose 0.8
Benzene emulsion 0.5
Vinyl acetate emulsion 0.5
According to the technique comprised the steps, produced:
(1), in high-speed mixing equipment, add water according to 50 times of said components (manmade inorganic fibre, carbon material, dispersion agent, caking agent) total mass, start high-speed stirring;
(2) the succinate sodium sulfonate, ether of cellulose, vinyl acetate emulsion and the benzene emulsion that add, successively described proportioning, stir 30 minutes;
(3) add, successively the basalt fibre of described proportioning, artificial mullite fiber, gac, expanded graphite, stir 30 minutes, make slurry;
(4), slurry that step (3) is made pours in mould, by the vacuum suck method, sloughs moisture, or drips and anhydrates minute by placing nature, or slough moisture by compacting, moulding obtains flaky material;
(5) flaky material, step (4) obtained is 130 ℃ of oven dry;
(6), flaky material that step (5) is obtained is 250 ℃ of expansions, the airsetting gel, obtain a kind of carbon aerogels heat preserving and insulating material.
Take this carbon aerogels heat preserving and insulating material is sample, tests above-mentioned several performances.
embodiment 4
A kind of carbon aerogels heat preserving and insulating material, main ingredient comprises: manmade inorganic fibre, carbon material, dispersion agent, caking agent etc., wherein, each constituent mass is than as follows:
Mullite fiber 20
Sapphire whisker 80
Expanded graphite 70
Charcoal 10
Dodecylbenzene Soxylat A 25-7 1.5
Vinyl acetate emulsion 1.5
According to the technique comprised the steps, produced:
(1), in high-speed mixing equipment, add water according to 45 times of said components (manmade inorganic fibre, carbon material, dispersion agent, caking agent) total mass, start high-speed stirring;
(2) the dodecylbenzene Soxylat A 25-7, the vinyl acetate emulsion that add, successively described proportioning, stir 33 minutes;
(3) sapphire whisker, mullite fiber, charcoal, the expanded graphite that add, successively described proportioning, stir 35 minutes, makes slurry;
(4), slurry that step (3) is made pours in mould, by the vacuum suck method, sloughs moisture, or drips and anhydrates minute by placing nature, or slough moisture by compacting, moulding obtains flaky material;
(5) flaky material, step (4) obtained is 135 ℃ of oven dry;
(6), flaky material that step (5) is obtained is 245 ℃ of expansions, the airsetting gel, obtain a kind of carbon aerogels heat preserving and insulating material.
Take this carbon aerogels heat preserving and insulating material is sample, tests above-mentioned several performances.
embodiment 5
A kind of carbon aerogels heat preserving and insulating material, main ingredient comprises: manmade inorganic fibre, carbon material, dispersion agent, caking agent etc., wherein, each constituent mass is than as follows:
Aluminum silicate fiber 85
Containing zirconium fiber 15
Expanded graphite 40
Graphite 10
Ether of cellulose 1.2
Organosilicon crylic acid latex 1.1
According to the technique comprised the steps, produced:
(1), in high-speed mixing equipment, add water according to 55 times of said components (manmade inorganic fibre, carbon material, dispersion agent, caking agent) total mass, start high-speed stirring;
(2) ether of cellulose, the organosilicon crylic acid latex that add, successively described proportioning, stir 35 minutes;
(3) add, successively the aluminum silicate fiber of described proportioning, containing zirconium fiber, graphite, expanded graphite, stir 38 minutes, make slurry;
(4), slurry that step (3) is made pours in mould, by the vacuum suck method, sloughs moisture, or drips and anhydrates minute by placing nature, or slough moisture by compacting, moulding obtains flaky material;
(5) flaky material, step (4) obtained is 145 ℃ of oven dry;
(6), flaky material that step (5) is obtained is 240 ℃ of expansions, the airsetting gel, obtain a kind of carbon aerogels heat preserving and insulating material.
Take this carbon aerogels heat preserving and insulating material is sample, tests above-mentioned several performances.
embodiment 6
A kind of carbon aerogels heat preserving and insulating material, main ingredient comprises: manmade inorganic fibre, carbon material, dispersion agent, caking agent etc., wherein, each constituent mass is than as follows:
Aluminum silicate fiber 70
Rock mineral wool fibre 30
Expanded graphite 40
Carbon black 10
Triethanolamine oleate 0.3
Dodecylbenzene Soxylat A 25-7 1.0
Organosilicon crylic acid latex 0.8
Benzene emulsion 0.4
According to the technique comprised the steps, produced:
(1), in high-speed mixing equipment, add water according to 52 times of said components (manmade inorganic fibre, carbon material, dispersion agent, caking agent) total mass, start high-speed stirring;
(2) add, successively triethanolamine oleate, dodecylbenzene Soxylat A 25-7, benzene emulsion, the organosilicon crylic acid latex of described proportioning, stir 31 minutes;
(3) add, successively aluminum silicate fiber, rock mineral wool fibre, carbon black, the expanded graphite of described proportioning, stir 40 minutes, make slurry;
(4), slurry that step (3) is made pours in mould, by the vacuum suck method, sloughs moisture, or drips and anhydrates minute by placing nature, or slough moisture by compacting, moulding obtains flaky material;
(5) flaky material, step (4) obtained is 135 ℃ of oven dry;
(6), flaky material that step (5) is obtained is 248 ℃ of expansions, the airsetting gel, obtain a kind of carbon aerogels heat preserving and insulating material.
Take this carbon aerogels heat preserving and insulating material is sample, tests above-mentioned several performances.
embodiment 7
A kind of carbon aerogels heat preserving and insulating material, main ingredient comprises: manmade inorganic fibre, carbon material, dispersion agent, caking agent etc., wherein, each constituent mass is than as follows:
Glass fibre 65
Rock mineral wool fibre 35
Expanded graphite 60
Triethanolamine oleate 1.3
Organosilicon crylic acid latex 1.1
According to the technique comprised the steps, produced:
(1), in high-speed mixing equipment, add water according to 40 times of said components (manmade inorganic fibre, carbon material, dispersion agent, caking agent) total mass, start high-speed stirring;
(2) triethanolamine oleate, the organosilicon crylic acid latex that add, successively described proportioning, stir 28 minutes;
(3) add, successively glass fibre, rock mineral wool fibre, the expanded graphite of described proportioning, stir 36 minutes, make slurry;
(4), slurry that step (3) is made pours in mould, by the vacuum suck method, sloughs moisture, or drips and anhydrates minute by placing nature, or slough moisture by compacting, moulding obtains flaky material;
(5) flaky material, step (4) obtained is 138 ℃ of oven dry;
(6), flaky material that step (5) is obtained is 242 ℃ of expansions, the airsetting gel, obtain a kind of carbon aerogels heat preserving and insulating material.
Take this carbon aerogels heat preserving and insulating material is sample, tests above-mentioned several performances.
embodiment 8
A kind of carbon aerogels heat preserving and insulating material, main ingredient comprises: manmade inorganic fibre, carbon material, dispersion agent, caking agent etc., wherein, each constituent mass is than as follows:
Aluminum silicate fiber 60
Haplobasalt fiber 40
Expanded graphite 35
Graphite 5
Succinate sodium sulfonate 1.2
Polyacrylate dispersion 1.3
According to the technique comprised the steps, produced:
(1), in high-speed mixing equipment, add water according to 45 times of said components (manmade inorganic fibre, carbon material, dispersion agent, caking agent) total mass, start high-speed stirring;
(2) the succinate sodium sulfonate, the polyacrylate dispersion that add, successively described proportioning, stir 25 minutes;
(3) add, successively aluminum silicate fiber, haplobasalt fiber, expanded graphite, the graphite of described proportioning, stir 40 minutes, make slurry;
(4), slurry that step (3) is made pours in mould, by the vacuum suck method, sloughs moisture, or drips and anhydrates minute by placing nature, or slough moisture by compacting, moulding obtains flaky material;
(5) flaky material, step (4) obtained is 145 ℃ of oven dry;
(6), flaky material that step (5) is obtained is 230 ℃ of expansions, the airsetting gel, obtain a kind of carbon aerogels heat preserving and insulating material.
Take this carbon aerogels heat preserving and insulating material is sample, tests above-mentioned several performances.
embodiment 9
A kind of carbon aerogels heat preserving and insulating material, main ingredient comprises: manmade inorganic fibre, carbon material, dispersion agent, caking agent etc., wherein, each constituent mass is than as follows:
Aluminum silicate fiber 80
Sapphire whisker 20
Expanded graphite 30
Ether of cellulose 1.4
Polyacrylate dispersion 1.2
According to the technique comprised the steps, produced:
(1), in high-speed mixing equipment, add water according to 60 times of said components (manmade inorganic fibre, carbon material, dispersion agent, caking agent) total mass, start high-speed stirring;
(2) ether of cellulose, the polyacrylate dispersion that add, successively described proportioning, stir 36 minutes;
(3) aluminum silicate fiber, sapphire whisker, the expanded graphite that add, successively described proportioning, stir 43 minutes, makes slurry;
(4), slurry that step (3) is made pours in mould, by the vacuum suck method, sloughs moisture, or drips and anhydrates minute by placing nature, or slough moisture by compacting, moulding obtains flaky material;
(5) flaky material, step (4) obtained is 130 ℃ of oven dry;
(6), flaky material that step (5) is obtained is 270 ℃ of expansions, the airsetting gel, obtain a kind of carbon aerogels heat preserving and insulating material.
Take this carbon aerogels heat preserving and insulating material is sample, tests above-mentioned several performances.
embodiment 10
A kind of carbon aerogels heat preserving and insulating material, main ingredient comprises: manmade inorganic fibre, carbon material, dispersion agent, caking agent etc., wherein, each constituent mass is than as follows:
Aluminum silicate fiber 85
Glass fibre 15
Expanded graphite 50
Gac 10
Coconut oil diethanol amide 1.5
Polyacrylate dispersion 1.4
According to the technique comprised the steps, produced:
(1), in high-speed mixing equipment, add water according to 30 times of said components (manmade inorganic fibre, carbon material, dispersion agent, caking agent) total mass, start high-speed stirring;
(2) coconut oil diethanol amide, the polyacrylate dispersion that add, successively described proportioning, stir 30 minutes;
(3) add, successively aluminum silicate fiber, glass aluminium fiber, expanded graphite, the gac of described proportioning, stir 35 minutes, make slurry;
(4), slurry that step (3) is made pours in mould, by the vacuum suck method, sloughs moisture, or drips and anhydrates minute by placing nature, or slough moisture by compacting, moulding obtains flaky material;
(5) flaky material, step (4) obtained is 120 ℃ of oven dry;
(6), flaky material that step (5) is obtained is 240 ℃ of expansions, the airsetting gel, obtain a kind of carbon aerogels heat preserving and insulating material.
Take this carbon aerogels heat preserving and insulating material is sample, tests above-mentioned several performances.
Each component raw material used in above-described embodiment 1-10, all buy gained from commercially available prod.
Each properties of sample parameter testing result of above-mentioned Comparative Examples and embodiment 1-10 is as following table 1:
Each properties of sample parameter testing result of table 1 Comparative Examples and embodiment
(annotate: embodiment mean value refers to the various performance parameters mean value of embodiment 1-10.）
The present invention is by wet method slurrying, the carbon materials such as expanded graphite are dispersed in fiber, moulding, dehydrate after, high-temperature expansion in mould, the airsetting gel is processed, and carbon aerogels class material is filled full interfibrous space, make the air in heat preserving and insulating material can not unrestricted flow, unmatchful miscarriage is given birth to, and the carbon material of black stoped thermal radiation fully, thereby has greatly reduced the thermal conductivity of material.With the general fibre felt of aerogel-congtg material not, compare, thermal conductivity only has 50% left and right of general fibre felt, and embodiment 1 is not because add carbon material, and without the aerogel weighting material, its thermal conductivity and common fibrefelt are more or less the same.Fiber composite insulated lagging material containing carbon aerogels is compared with the fiber composite insulated lagging material of silicon containing gas gel, thermal conductivity is also only than high 10% left and right of the fiber composite insulated lagging material of silicon containing gas gel, but the finished product price only has the 10-20% of the fiber composite insulated lagging material of silicon containing gas gel, so there is great using value and market potential.
Claims (10)
1. a carbon aerogels heat preserving and insulating material, be comprised of manmade inorganic fibre, carbon material, dispersion agent and caking agent, wherein the ratio of quality and the number of copies of each component for example under:
Manmade inorganic fibre 100
Carbon material 0-200
Dispersion agent 0.5-2.0
Caking agent 0.5-2.0.
2. a kind of carbon aerogels heat preserving and insulating material according to claim 1 is characterized in that: the ratio of quality and the number of copies of above-mentioned each component for example under:
Manmade inorganic fibre 100
Carbon material 20-80
Dispersion agent 1.0-1.5
Caking agent 1.0-1.5.
3. a kind of carbon aerogels heat preserving and insulating material according to claim 1 is characterized in that: described manmade inorganic fibre is glass fibre, aluminum silicate fiber, rock mineral wool fibre, sapphire whisker, containing one or more mixture in zirconium fiber, artificial mullite fiber, haplobasalt fiber, quartz glass fibre, boron fibre.
4. a kind of carbon aerogels heat preserving and insulating material according to claim 1 is characterized in that: described carbon material is one or more mixture in expanded graphite, graphite, gac, charcoal, carbon black.
5. a kind of carbon aerogels heat preserving and insulating material according to claim 1, it is characterized in that: described dispersion agent is succinate sodium sulfonate, triethanolamine oleate, coconut oil diethanol amide, dodecylbenzene Soxylat A 25-7, castor oil polyoxyethylene ether, the mixture of one or more in ether of cellulose.
6. a kind of carbon aerogels heat preserving and insulating material according to claim 1 is characterized in that: described caking agent is any one or a few mixture in polyacrylate dispersion, VAE emulsion, vinyl acetate emulsion, organosilicon crylic acid latex, benzene emulsion.
7. a kind of carbon aerogels heat preserving and insulating material preparation method according to claim 1 is characterized in that:
Step, for by formula, each starting material being added in dry-powder mixer and mix, gets final product.
8. a kind of carbon aerogels heat preserving and insulating material preparation method according to claim 1 is characterized in that:
Step is that (1) is by formula weighing each component;
(2), in high-speed mixing equipment, according to the 5-100 of formula constituent total mass in step (1), doubly add water;
(3) add successively caking agent and dispersion agent, stir 20-40min;
(4) add successively again manmade inorganic fibre, the carbon material of described proportioning, stir 20-50min, make slurry, obtain.
9. a kind of carbon aerogels heat preserving and insulating material preparation method according to claim 8 is characterized in that:
Described step is:
(1) by formula weighing each component;
(2), in high-speed mixing equipment, according to the 5-100 of formula constituent total mass in step (1), doubly add water;
(3) add successively caking agent and dispersion agent, stir 20-40min;
(4) add successively again manmade inorganic fibre, the carbon material of described proportioning, stir 20-50 min, make slurry;
(5) slurry step (4) made is poured in mould, by the vacuum suck method, sloughs moisture, or drips and anhydrate minute by placing nature, or sloughs moisture by compacting, and moulding obtains flaky material;
(6) flaky material step (5) obtained is dried, temperature 100-150 ℃;
(7) flaky material step (6) obtained is 200-300 ℃ of expansion, and the airsetting gel, obtain.
10. according to the described a kind of carbon aerogels heat preserving and insulating material of any one in claim 1-9, it is characterized in that: the normal temperature thermal conductivity is 0.02-0.03W/ (mK), at the temperature of 450-550 ℃, its thermal conductivity is 0.07--0.085W/ (mK).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310421121.9A CN103466998B (en) | 2013-09-16 | 2013-09-16 | A kind of Carbon aerogel thermal insulation material and preparation method thereof |
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| CN201310421121.9A CN103466998B (en) | 2013-09-16 | 2013-09-16 | A kind of Carbon aerogel thermal insulation material and preparation method thereof |
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| CN103466998A true CN103466998A (en) | 2013-12-25 |
| CN103466998B CN103466998B (en) | 2016-02-17 |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104370500A (en) * | 2014-04-22 | 2015-02-25 | 天津锦美碳材科技发展有限公司 | Active-carbon thermal-insulation material and preparation method thereof |
| CN104446334A (en) * | 2014-12-15 | 2015-03-25 | 航天特种材料及工艺技术研究所 | Method for preparing low-cost carbon aerogel thermal insulation composite material |
| CN104591765A (en) * | 2014-12-24 | 2015-05-06 | 中国建筑材料科学研究总院 | Expandable material and preparation method thereof |
| CN106592195A (en) * | 2016-12-05 | 2017-04-26 | 山东鲁阳节能材料股份有限公司 | Aerogel fiber felt composite material and preparation method thereof |
| CN107458062A (en) * | 2017-08-22 | 2017-12-12 | 江苏泛亚微透科技股份有限公司 | Carbon thermally conductive sheet and expanded PTFE heat insulating coat film and preparation method thereof |
| CN107500603A (en) * | 2017-08-31 | 2017-12-22 | 苏州仲勉装饰有限公司 | A kind of preparation method of tunnel shock resistance insulation material |
| CN107978723A (en) * | 2016-10-21 | 2018-05-01 | 宁德时代新能源科技股份有限公司 | Heat insulation cotton, preparation method thereof and battery module applying heat insulation cotton |
| CN108146028A (en) * | 2016-12-05 | 2018-06-12 | 松下知识产权经营株式会社 | Heat insulating material and the equipment using the heat insulating material |
| CN108395173A (en) * | 2018-03-29 | 2018-08-14 | 合肥永泰新型建材有限公司 | A kind of preparation method of heat-insulation material |
| CN109082259A (en) * | 2018-07-30 | 2018-12-25 | 苏州市回天科技有限公司 | A kind of insulation adhesive and preparation method thereof |
| CN111592376A (en) * | 2020-06-08 | 2020-08-28 | 北京化工大学 | Composite aerogel functional material based on ferroferric oxide nanowire/graphene oxide interpenetrating structure and preparation method thereof |
| CN113511837A (en) * | 2021-07-27 | 2021-10-19 | 广州恩沣新材料科技有限公司 | Aerogel EVA composite heat-insulating material and preparation method thereof |
| CN113562980A (en) * | 2020-04-29 | 2021-10-29 | 河北三楷深发科技股份有限公司 | Modified inorganic fiber and application thereof |
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| CN104370500A (en) * | 2014-04-22 | 2015-02-25 | 天津锦美碳材科技发展有限公司 | Active-carbon thermal-insulation material and preparation method thereof |
| CN104446334A (en) * | 2014-12-15 | 2015-03-25 | 航天特种材料及工艺技术研究所 | Method for preparing low-cost carbon aerogel thermal insulation composite material |
| CN104591765A (en) * | 2014-12-24 | 2015-05-06 | 中国建筑材料科学研究总院 | Expandable material and preparation method thereof |
| CN107500711B (en) * | 2014-12-24 | 2019-09-10 | 中国建筑材料科学研究总院 | Engine expansion plugging heat-barrier material |
| CN107500711A (en) * | 2014-12-24 | 2017-12-22 | 中国建筑材料科学研究总院 | Engine expansion plugging heat-barrier material |
| CN107978723A (en) * | 2016-10-21 | 2018-05-01 | 宁德时代新能源科技股份有限公司 | Heat insulation cotton, preparation method thereof and battery module applying heat insulation cotton |
| CN108146028A (en) * | 2016-12-05 | 2018-06-12 | 松下知识产权经营株式会社 | Heat insulating material and the equipment using the heat insulating material |
| CN106592195B (en) * | 2016-12-05 | 2019-01-22 | 山东鲁阳节能材料股份有限公司 | A kind of aeroge fibrofelt composite material and preparation method |
| CN106592195A (en) * | 2016-12-05 | 2017-04-26 | 山东鲁阳节能材料股份有限公司 | Aerogel fiber felt composite material and preparation method thereof |
| CN108146028B (en) * | 2016-12-05 | 2021-10-15 | 松下知识产权经营株式会社 | Thermal insulation material and apparatus using the same |
| CN107458062A (en) * | 2017-08-22 | 2017-12-12 | 江苏泛亚微透科技股份有限公司 | Carbon thermally conductive sheet and expanded PTFE heat insulating coat film and preparation method thereof |
| CN107500603A (en) * | 2017-08-31 | 2017-12-22 | 苏州仲勉装饰有限公司 | A kind of preparation method of tunnel shock resistance insulation material |
| CN108395173A (en) * | 2018-03-29 | 2018-08-14 | 合肥永泰新型建材有限公司 | A kind of preparation method of heat-insulation material |
| CN109082259A (en) * | 2018-07-30 | 2018-12-25 | 苏州市回天科技有限公司 | A kind of insulation adhesive and preparation method thereof |
| CN113562980A (en) * | 2020-04-29 | 2021-10-29 | 河北三楷深发科技股份有限公司 | Modified inorganic fiber and application thereof |
| CN111592376A (en) * | 2020-06-08 | 2020-08-28 | 北京化工大学 | Composite aerogel functional material based on ferroferric oxide nanowire/graphene oxide interpenetrating structure and preparation method thereof |
| CN113511837A (en) * | 2021-07-27 | 2021-10-19 | 广州恩沣新材料科技有限公司 | Aerogel EVA composite heat-insulating material and preparation method thereof |
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