CN106830957A - A kind of nanometer level microporous heat-insulated clay - Google Patents
A kind of nanometer level microporous heat-insulated clay Download PDFInfo
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- CN106830957A CN106830957A CN201710140237.3A CN201710140237A CN106830957A CN 106830957 A CN106830957 A CN 106830957A CN 201710140237 A CN201710140237 A CN 201710140237A CN 106830957 A CN106830957 A CN 106830957A
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- nanometer level
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- level microporous
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/14—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on silica
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B38/00—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
- C04B38/0051—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof characterised by the pore size, pore shape or kind of porosity
- C04B38/0054—Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof characterised by the pore size, pore shape or kind of porosity the pores being microsized or nanosized
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3244—Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
- C04B2235/52—Constituents or additives characterised by their shapes
- C04B2235/5208—Fibers
- C04B2235/5216—Inorganic
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- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Nanotechnology (AREA)
- Thermal Insulation (AREA)
Abstract
The present invention relates to the nanometer level microporous heat-insulated clay of one kind, its constituent component and percentage by weight are respectively：Nanometer grade silica powder 10~35%；Nanoscale or micron order Zirconium oxide powder or zirconium silicate powder 2~25%, enhancing fiber 0.1~10%；Plus anhydrous solvent is to 100%.Obtained nanometer level microporous heat-insulated clay of the invention, its hygrometric state density is in 800~1250Kg/m3, 250~500Kg/m of dry density3Thermal conductivity factor 0.035~0.065W/mK at 600 DEG C, the 1.50W/mK of 0.12~0.30W/mK and common refractory mortar is much low during than 400 DEG C of ceramic fibre matter clay, it is a kind of extraordinary nanometer level microporous heat-insulated clay, have broad application prospects, be widely used in that high temperature insulating, low temperature is heat-insulated and the various aspects in the heat-insulating and energy-saving field such as cold insulation.
Description
Technical field
The invention belongs to heat-insulating heat-preserving material field, it is related to clay, especially a kind of nanometer level microporous heat-insulated clay.
Background technology
Existing high temperature clay or heat-insulation and heat-preservation clay, are generally made, its thermal conductivity factor of micron order fire resisting powder
At 0.12~1.5W/mK (400 DEG C), although with good fire resistance and construction mobility, but, its heat-proof quality is very
Difference.
By retrieval, following Patents are found：
1st, efficient thermal-insulating and anti-cracking daub of crystallized waterproofing (CN101074158A), by rubber powder and insulation pellet by every
100 kilograms of rubber powders are mixed into 480~600 liters of heat preserving and insulating materials, and the rubber powder is made up of the raw material of following portions by weight：
550~625 parts of 425# cement, 175~250 parts of quartz sand, 150~160 parts of powdered whiting, 85~100 parts of sierozem power, fiber
4~7 parts of element, 3~5 parts of polypropylene monofilament fiber, 21~29 parts of redispersable latex powder, cement-base infiltration crystallization activity masterbatch 13
~17 parts.This clay gas permeability, heat-insulating property, fire protecting performance are good, the phenomenon such as are less prone to crack, are cracked, come off.
2nd, a kind of Thermal insulation waterproof daub and preparation method thereof (CN103553542A), including styrene-acrylic emulsion, building glue, ester
Alcohol, thickener, mould inhibitor, dispersant, granular polystyrene, glass bead, alumina silicate, pottery sand, functional fibre, coupling agent, wetting agent
And sodium silicate aqueous solution.(1) adding the sodium silicate aqueous solution of formula ratio, mould inhibitor, dispersant, ester alcohol and functional fibre has
In the blending tank of the mixed liquor of styrene-acrylic emulsion, coupling agent and wetting agent, agitator is started, low whipping speed is 120-130r/
Min, thickener is added after mixing 2-3h；(2) low whipping speed is addition hollow glass bead or sky in the case of 50-60r/min
1-2h is stirred in heart glass microballoon, alumina silicate, pottery sand, building glue and granular polystyrene, compound, i.e. Thermal insulation waterproof daub is obtained.
3rd, a kind of organic-inorganic compoiste for external wall external thermal insulation-insulation system is incubated clay constituent
(CN104098319A), the insulation clay constituent is by polyacrylate dispersion, Ludox, cellulose ether, polyphenyl, flyash
Cenosphere, expansion vitrification are micro-, coalescents, ethylene glycol, mould inhibitor are constituted.Its formula is following (mass ratio)：Water 240~
280；Coal fly ash hollow micro bead 70~90；Polyacrylate dispersion 180~250；Ludox 15~20；Cellulose ether 1.0~
1.58；Granular polystyrene 7~12；Expanded and vitrified small ball 100~150；Coalescents 3~5；Ethylene glycol 7~9；Mould inhibitor 0.7~
0.9。
By contrast, the component of the application clay is different from above-mentioned patent, and the application uses anhydrous type solvent, this kind of solvent
With extremely low surface tension, the clay for obtaining is nanometer level microporous, and heat-insulating property is 3~4 times of common clay.
The content of the invention
The purpose of the present invention is to overcome the shortcomings of existing refractory mortar material, there is provided a kind of nanometer level microporous heat-insulated clay
Material, the heat-insulated clay thermal conductivity factor is low, energy-saving efficiency is high, produces simple, with low cost.
The present invention solves its technical problem and takes following technical scheme to realize：
A kind of nanometer level microporous heat-insulated clay, its constituent component and percentage by weight are respectively：
And, the SiO 2 powder is aerosil powder, and particle diameter is 5~200 nanometers.
And, the Zirconium oxide powder or zirconium silicate powder diameter are 5~200 nanometers or 0.5~10 micron.
And, the enhancing fiber is inanimate matter chopped fiber or continuous fiber.
And, the enhancing fiber be glass fibre, rock wool, alumina silicate fibre, silicon oxide fibre, alumina fibre,
High silica fiber or mullite fiber, length are 5~15 millimeters.
And, the solvent be tetraethyl orthosilicate, methyl alcohol, formamide, ethanol, silane, resin one or two kinds of with
On mixture.
And, the tetraethyl orthosilicate, methyl alcohol, formamide, ethanol, silane and resin are by weight the ︰ 0.5 of 1 ︰, 0.5 ︰ 0.5:
0.6:0.6 is used in mixed way.
And, the clay component also includes 10~30% silicon carbide powders, and particle diameter is that 5~200 nanometers or 0.5~10 are micro-
Rice.
And, the clay component also includes 1~30% titanium dioxide or calcium carbonate, and particle diameter is 5~200 nanometers or 0.5
~10 microns.
And, the clay component also includes 0.1~3% aluminum oxide, and particle diameter is 5~200 nanometers or 0.5~10 micron.
It is raw material that the present invention uses nanometer level microporous heat-barrier material, plus special additive, is fabricated to clay state, can be easily
Construction.Construct refractory brick when, clay can be pressed into brickwork joint the inside go, dry after formed lightweight it is nanometer level microporous every
Heat structure, forms good effect of heat insulation, has prevented the heat losses between brickwork joint, reaches good heat insulation heat preservation energy-saving effect
Really.
Advantages and positive effects of the present invention are：
1st, the present invention has raw material the features such as easily obtain, produce simple, with low cost, can be widely applied to high temperature every
Heat, low temperature is heat-insulated and the various aspects in the heat-insulating and energy-saving field such as cold insulation.
2nd, the production method that the present invention is used has simple and easy to apply, is side that existing industrial equipment and method can reach
Case, it is not necessary to special special equipment.
3rd, the obtained nanometer level microporous heat-insulated clay of the present invention, its hygrometric state density is in 800~1250Kg/m3, dry density 250
~500Kg/m3；Thermal conductivity factor 0.035~0.065W/mK at 600 DEG C.
0.12~0.30W/mK of thermal conductivity factor is much lower during than the clay of ceramic fibre or 400 DEG C of indefinite form material；
Compared with the refractory mortar that in the market is commonly used, such as chamotte, phosphate clay are all with various micron levels or millimeter rank
Powders mixture, the use of water or aqueous liquid is solvent, its 400 DEG C of thermal conductivity factors are in 0.15~2.5W/mK, nanometer
The heat-proof quality of the level heat-insulated clay of micropore is even more excellent many.
4th, the nanometer level microporous heat-insulated clay of the present invention uses anhydrous organic solvent, and this kind of organic solvent all has pole
Low surface tension, such clay is that excessive surface shrinkage will not be produced to press and destroy nanometer level microporous in drying process
Structure, can so retain the micropore of Nano grade, reach extremely low 0.035~0.065W/mK thermal conductivity factors；If of the invention
Using water or aqueous solvent, nanopowder will be destroyed powder formulation when drying because capillary micropore systolic pressure is acted on
Nanostructured becomes the micron even other pore space structure of grade, can exactly produce that many grades are other to be split macroscopically observing
Line, loses its excellent heat-proof quality.
5th, the present invention is using tetraethyl orthosilicate, methyl alcohol, formamide, ethanol, silane and the resin ︰ of 1 ︰, 0.5 ︰ 0.5 by weight
0.5:0.6:0.6 is used in mixed way, and wherein tetraethyl orthosilicate is a kind of organic solvent of oiliness, can play oiliness package action,
Prevent the micro-moisture destruction nano micropore structure for entering；Methyl alcohol and ethanol are a kind of solvents of extremely low surface tension, favorably
In protecting nano micropore structure in drying；Formamide is granularity pore size control agent in a kind of drying process, and Main Function is
The nano aperture that equal control is formed；Silane and resin are a kind of additives of silicon, and the network connection that silicon is formed at high temperature is made
With the bond strength under raising product high temperature, so that for dried product provides beneficial intensity and heat-proof quality, this is several
Organic solvent is used in mixed way, and nanometer level microporous heat-insulated clay can be made to reach more excellent performance.
Specific embodiment
With reference to embodiment, the present invention is further described, and following embodiments are illustrative, be not it is limited,
Protection scope of the present invention can not be limited with following embodiments.
Embodiment 1：
A kind of nanometer heat insulation material, its constituent component and percentage by weight are respectively：
Preparation method is：
SiO 2 powder, Zirconium oxide powder or zirconium silicate powder and enhancing fiber dry state are mixed by weight ratio
Close, add solvent, stir, form hygrometric state mixed soil slurry, that is, obtain nanometer level microporous heat-insulated clay material.
Its hygrometric state density is in 1250Kg/m3, 350~500Kg/m of dry density3, thermal conductivity factor 0.055W/mK at 600 DEG C,
The solvent used in the present embodiment is the absolute ethyl alcohol of the conventional food-grade of in the market.
Embodiment 2：
A kind of nanometer heat insulation material, its constituent component and percentage by weight are respectively：
The solvent used in the present embodiment is the absolute ethyl alcohol of the conventional food-grade of in the market.
By weight ratio by nanometer grade silica or aerosil powder, nanoscale or micron order carborundum powder
End, nanoscale and/or micron grade aluminum oxide mix under dry state with reinforcing fiber, add solvent, and solvent load is with suitable compound
It is defined into mud, you can nanometer level microporous heat-insulated clay is obtained.
Thus obtained nanometer level microporous heat-insulated clay material, its wet density is in 1000Kg/m3, dry density 250~
400Kg/m3, it is thermal conductivity factor 0.045W/mK at 600 DEG C, 0.12~0.30W/mK during than 400 DEG C of ceramic fibre, common resistance to
The 1.50W/mK of fiery clay is much lower, is a kind of extraordinary nanometer level microporous heat-insulated clay material.
Claims (10)
1. a kind of nanometer level microporous heat-insulated clay, it is characterised in that：Its constituent component and percentage by weight are respectively：
2. nanometer level microporous heat-insulated clay according to claim 1, it is characterised in that：The SiO 2 powder is gas phase
SiO 2 powder, particle diameter is 5~200 nanometers.
3. nanometer level microporous heat-insulated clay according to claim 1, it is characterised in that：The Zirconium oxide powder or zirconium silicate
Powder diameter is 5~200 nanometers or 0.5~10 micron.
4. nanometer level microporous heat-insulated clay according to claim 1, it is characterised in that：The enhancing fiber is inanimate matter
Chopped fiber or continuous fiber.
5. nanometer level microporous heat-insulated clay according to claim 1, it is characterised in that：The enhancing fiber is glass fibers
Dimension, rock wool, alumina silicate fibre, silicon oxide fibre, alumina fibre, high silica fiber or mullite fiber, length are 5~15 millis
Rice.
6. nanometer level microporous heat-insulated clay according to claim 1, it is characterised in that：The solvent be tetraethyl orthosilicate,
Methyl alcohol, formamide, ethanol, silane, the one or more kinds of mixtures of resin.
7. nanometer level microporous heat-insulated clay according to claim 6, it is characterised in that：The tetraethyl orthosilicate, methyl alcohol, first
Acid amides, ethanol, silane and resin are by weight the ︰ 0.5 of 1 ︰, 0.5 ︰ 0.5:0.6:0.6 is used in mixed way.
8. nanometer level microporous heat-insulated clay according to claim 1, it is characterised in that：The clay component also include 10~
30% silicon carbide powder, particle diameter is 5~200 nanometers or 0.5~10 micron.
9. nanometer level microporous heat-insulated clay according to claim 1, it is characterised in that：The clay component also include 1~
30% titanium dioxide or calcium carbonate, particle diameter are 5~200 nanometers or 0.5~10 micron.
10. nanometer level microporous heat-insulated clay according to claim 1, it is characterised in that：The clay component also includes 0.1
~3% aluminum oxide, particle diameter is 5~200 nanometers or 0.5~10 micron.
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| CN201710140237.3A CN106830957A (en) | 2017-03-10 | 2017-03-10 | A kind of nanometer level microporous heat-insulated clay |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108424069A (en) * | 2018-03-21 | 2018-08-21 | 中国人民解放军国防科技大学 | Pouring-formed high-temperature-resistant nano heat-insulating composite material and preparation method thereof |
| CN111732392A (en) * | 2020-07-05 | 2020-10-02 | 郑州瑞泰耐火科技有限公司 | High-strength nano plate and preparation method thereof |
| CN113387673A (en) * | 2021-07-06 | 2021-09-14 | 南京苏夏设计集团股份有限公司 | Composite aluminum-magnesium paste and preparation method thereof |
| CN113620686A (en) * | 2021-08-12 | 2021-11-09 | 航天特种材料及工艺技术研究所 | Green preparation method of high-temperature-resistant nano heat-insulating mud |
| CN118530690A (en) * | 2024-05-28 | 2024-08-23 | 长春中科应化特种材料股份有限公司 | High-performance sealant and preparation method and application thereof |
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| CN101705075A (en) * | 2009-12-01 | 2010-05-12 | 刘礼龙 | Nanoscale heat insulating material |
| CN101788096A (en) * | 2010-01-22 | 2010-07-28 | 刘礼龙 | Nano heat insulating blanket and production method thereof |
| CN102964088A (en) * | 2012-11-23 | 2013-03-13 | 山东鲁阳股份有限公司 | Ultralow heat conductivity nano aerogel thermal insulation material and preparation method thereof |
| CN102992734A (en) * | 2012-11-15 | 2013-03-27 | 青岛保利康新材料有限公司 | Nano-composite thermal insulation material |
| CN105294159A (en) * | 2015-12-01 | 2016-02-03 | 武汉钢铁(集团)公司 | Composite nanopore thermal insulation material and preparation method thereof |
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2017
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| CN101705075A (en) * | 2009-12-01 | 2010-05-12 | 刘礼龙 | Nanoscale heat insulating material |
| CN101788096A (en) * | 2010-01-22 | 2010-07-28 | 刘礼龙 | Nano heat insulating blanket and production method thereof |
| CN102992734A (en) * | 2012-11-15 | 2013-03-27 | 青岛保利康新材料有限公司 | Nano-composite thermal insulation material |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108424069A (en) * | 2018-03-21 | 2018-08-21 | 中国人民解放军国防科技大学 | Pouring-formed high-temperature-resistant nano heat-insulating composite material and preparation method thereof |
| CN111732392A (en) * | 2020-07-05 | 2020-10-02 | 郑州瑞泰耐火科技有限公司 | High-strength nano plate and preparation method thereof |
| CN113387673A (en) * | 2021-07-06 | 2021-09-14 | 南京苏夏设计集团股份有限公司 | Composite aluminum-magnesium paste and preparation method thereof |
| CN113620686A (en) * | 2021-08-12 | 2021-11-09 | 航天特种材料及工艺技术研究所 | Green preparation method of high-temperature-resistant nano heat-insulating mud |
| CN118530690A (en) * | 2024-05-28 | 2024-08-23 | 长春中科应化特种材料股份有限公司 | High-performance sealant and preparation method and application thereof |
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