CN101705075A - Nanoscale heat insulating material - Google Patents
Nanoscale heat insulating material Download PDFInfo
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- CN101705075A CN101705075A CN200910228914A CN200910228914A CN101705075A CN 101705075 A CN101705075 A CN 101705075A CN 200910228914 A CN200910228914 A CN 200910228914A CN 200910228914 A CN200910228914 A CN 200910228914A CN 101705075 A CN101705075 A CN 101705075A
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Abstract
The invention relates to a nanoscale heat insulating material, comprising the following components in weight percent: 5-95% of nanoscale silicon dioxide powder, 5-50% of nanoscale or micro-sized zirconium dioxide powder or zirconium silicate powder and/or silicon carbide powder, 3-15% of reinforced fibre and adding the solvent to 100%. The invention is characterized by easily-obtained raw materials, simple production, low cost and the like, no need of special device; as for the prepared nanoscale heat insulating material, the density is 100-500Kg/m3, the heat conduction coefficient is 0.030-0.055W/mK at 800 DEG C and is much lower than that of the ceramic fibre with the heat conduction coefficient being 0.12-0.20W/mK at 800 DEG C, thus being an excellent nanoscale heat insulating material with broad application prospect and being widely applied to each aspect of heat insulating and energy saving fields of high temperature heat insulation, low temperature heat insulation, cold insulation and the like.
Description
Technical field
The invention belongs to heat-insulation and heat-preservation material field, especially a kind of nanoscale heat insulating material.
Background technology
China is energy consumption big country, and the annual energy that consumes is equivalent to 1,500,000,000 tons of standard coals, and wherein about 40% is the energy consumption of industrial equipments.At present, country has formulated a series of laws and regulations of energy saving building in the hope of reducing the energy consumption of industrial equipments.One of mode that wherein reduces the industrial equipments energy consumption is installed heat insulating board exactly in industrial equipments, utilize heat insulating board that industrial equipments is wrapped up to reduce the energy consumption of equipment.
Existing high temperature insulating warming plate generally adopts glass wool, rock wool, ceramic fiber (600 ℃ of thermal conductivity λ≤0.15W/mK, 800 ℃ of λ≤0.20W/mK) etc. as the heat-insulation and heat-preservation material, the problem that exists is: because the thermal conductivity of materials such as glass wool, rock wool, ceramic fiber is bigger, can't satisfy the heat-proof quality of requirements at the higher level, for realizing higher heat insulation requirement, the thermal conductivity of existing lagging material just seems bigger.
By retrieval, find two pieces of nanometer heat insulation materials close with the present patent application, a kind of nano hydrophobic thermal insulation material of the first and preparation method thereof (CN101144005), formulated by A component and B component, wherein A component main component is counted by weight: emulsion polymerization, modified polypropylene fiber, nm-class active calcium carbonate, silicate mineral, mix the back grouping, the B component is a cement, in use, A component and each the one group of mixing of B component are mixed thoroughly, promptly get nano hydrophobic thermal insulation material.It two is nano-hole silica composite heat insulation material (CN101302091), and by weight, it is made for 5～20 parts by 30～60 parts in nano-hole silica powder, 40～20 parts of aluminum silicate fibers, 5～20 parts of crystal whisker of hexa potassium titanate and cakingagent.The preparation method of this nano-hole silica composite heat insulation material is: with the nano-hole silica powder with nano-scale hole characteristic is base material, strengthen skeleton with aluminum silicate fiber, to have lower thermal conductivity and to have negative temperature coefficient and the crystal whisker of hexa potassium titanate of high infrared reflection characteristic is an additive, add cakingagent, through the fiber pre-treatment, discongest, moulding, drying and heat treatment step make.
Above-mentioned two pieces of documents and the present patent application have more different.
Summary of the invention
The objective of the invention is to overcome the deficiency of current material and technology, a kind of nano level lagging material be provided, this thermal baffle energy-saving efficiency height, thermal conductivity is low, production is simple, with low cost.
The present invention solves its technical problem and takes following technical scheme to realize:
A kind of nanoscale heat insulating material, it constitutes component and weight percent is respectively:
Nanometer grade silica powder 5～95%
Nano level or micron order Zirconium dioxide powder or zirconium silicate powder and/or silicon carbide powder 5～50%
Strengthen with fiber 3～15%
Solubilizing agent to 100%.
And described nanometer grade silica powder comprises the aerosil powder, and particle diameter is 5～200 nanometers.
And described Zirconium dioxide powder or zirconium silicate powder and/or silicon carbide powder, its particle diameter are 5～200 interior meters or 3～10 microns.
And described enhancing organic fibre is inanimate matter staple fibre and/or continuous fibre, comprises glass fibre, rock wool, aluminum silicate fiber, silicon oxide fibre, sapphire whisker, high silica fiber or mullite fiber, and length is 3～20 millimeters.
And described solvent comprises the one or more kinds of mixing of tetraethoxy, methyl alcohol, methane amide, ethanol and water, and four kinds of organic solvents outside above-mentioned solvent dewaters are technical grades, or the organic solvent of the chemical pure level of anhydrous level.
And described tetraethoxy, methyl alcohol, methane amide, ethanol and water were by weight 1: 0.5: 0.5: mixing in 0.5: 1 is used; Described water comprises ortho-water or purified deionized water.
And, also add nano level or micron-sized titania powder, nano level or micron-sized aluminium sesquioxide powder, perhaps other inorganic silicic acid aluminium, calcium oxide, bitter earth nano level or micron powder, its particle diameter is 5～200 interior meters or 3～10 microns, and addition is 5～30%.
And it constitutes component and weight percent is respectively:
Nanometer grade silica powder 20～70%
Nano level or micron order Zirconium dioxide powder or zirconium silicate powder and/or silicon carbide powder 15～35%
Strengthen with fiber 5～10%
Solubilizing agent to 100%.
Advantage of the present invention and positively effect are:
1, the present invention has raw material and obtains, produces characteristics such as simple, with low cost easily, can be widely used in high temperature insulating, low temperature is heat insulation and all respects in heat-insulating and energy-saving field such as cold insulation.
2, the production method that adopts of the present invention has simplely, and the scheme for existing industrial equipments and method can reach does not need special special equipment.
3, the nanoscale heat insulating material that makes of the present invention, its density is at 100～500Kg/m
3, thermal conductivity is 0.030～0.055W/mK in the time of 800 ℃, and 0.12～0.20W/mK is much lower during than 800 ℃ of ceramic fiber, is a kind of extraordinary nanoscale heat insulating material, has broad application prospects.
Embodiment
Below in conjunction with embodiment, the present invention is further described, and following embodiment is illustrative, is not determinate, can not limit protection scope of the present invention with following embodiment.
Embodiment 1:
A kind of nanometer heat insulation material, it constitutes component and weight percent is respectively:
5～200 nano level SiO 2 powders 5～95%;
5～200 nano levels or 3～10 micron-sized silicon carbide powders 5～30%
5～200 nano levels or 3～10 micron-sized Zirconium dioxide powders or zirconium silicate powder 5～30%
Strengthen with fiber 3～15%
All the other solubilizing agents to 100%.
The preparation method is:
By weight ratio SiO 2 powder, silicon carbide powder, Zirconium dioxide powder or zirconium silicate powder are mixed with the fiber dry state with enhancing, add solvent, stir, form the hygrometric state compound; The mixing of powder is adopted the planetary pressure stirring mixer that uses on the present market or circular cone type stirring mixer or with the similar blending means that stirs rod-type mixing machine etc. and so on, add solvent then and become the hygrometric state material, be extruded into certain shape blank with extrusion machinery, perhaps directly in mould, become blank, through moulding means moulding commonly used now such as roll squeezer, net belt type press, the board-like press of shoe or hydropress pressures, demoulding after drying promptly gets nanometer heat insulation material.
The present invention also can adopt the material base seasoning of the hygrometric state demoulding or be dry or dry in overcritical equipment in drying oven, and adopts existing technology to reclaim solvent and the water that wherein volatilizes, with comprehensive utilization.
The nanometer heat insulation material that makes thus, its density is at 100～500Kg/m
3, thermal conductivity is 0.035～0.055W/mK in the time of 800 ℃.
The solvent that uses in the present embodiment is tetraethoxy, methyl alcohol, methane amide, ethanol and ortho-water or a purified deionized water commonly used on the market, and by 1: 0.5: 0.5: mixing in 0.5: 1 was used; Four kinds of organic solvents outside above-mentioned solvent dewaters can be technical grades, also can be the organic solvents of the chemical pure level of anhydrous level, can compoundly use, and also can use as solvent separately.
Embodiment 2:
A kind of nanometer heat insulation material, it constitutes component and weight percent is respectively:
Nano level inorganic powder is nano silicon or aerosil powder, and its particle diameter is 5～200 nanometers, and consumption is 5～95% (weight), and the best is 20～70% (weight);
Nano level or micron-sized Zirconium dioxide powder or nano level or micron-sized zirconium silicate powder, its particle diameter are 5～200 nanometers or 3～10 microns, and consumption is 5～50% (weight), and the best is 15～35%;
Nano level or micron-sized aluminium sesquioxide powder, its particle diameter are 5～200 nanometers or 3～10 microns, and consumption is 5～30% (weight), and the best is 8～15% (weight);
Strengthening with fiber consumption is 3～15% (weight).
By weight ratio nanometer grade silica or aerosil powder, Zirconium dioxide powder or zirconium silicate powder, aluminium sesquioxide powder are used blending in of fibers with strengthening under dry state, add solvent, solvent load is as the criterion to be fit to the compound moulding, the compound of hygrometric state is put in the mould pressurizes seasoning or dry or dry in overcritical equipment in drying oven after the demoulding.The nanoscale heat insulating material that makes thus, its density is at 100～500Kg/m
3, thermal conductivity is 0.035～0.055W/mK in the time of 800 ℃, and 0.12～0.20W/mK is much lower during than 800 ℃ of ceramic fiber, is a kind of extraordinary nanoscale heat insulating material.
Claims (8)
1. nanoscale heat insulating material is characterized in that: it constitutes component and weight percent is respectively:
Nanometer grade silica powder 5～95%
Nano level or micron order Zirconium dioxide powder or zirconium silicate powder and/or silicon carbide powder 5～50%
Strengthen with fiber 3～15%
Solubilizing agent to 100%.
2. nanoscale heat insulating material according to claim 1 is characterized in that: described nanometer grade silica powder comprises the aerosil powder, and particle diameter is 5～200 nanometers.
3. nanoscale heat insulating material according to claim 1 is characterized in that: described Zirconium dioxide powder or zirconium silicate powder and/or silicon carbide powder, its particle diameter are 5～200 nanometers or 3～10 microns.
4. nanoscale heat insulating material according to claim 1, it is characterized in that: described enhancing fiber is inanimate matter staple fibre and/or continuous fibre, comprise glass fibre, rock wool, aluminum silicate fiber, silicon oxide fibre, sapphire whisker, high silica fiber or mullite fiber, length is 3～20 millimeters.
5. nanoscale heat insulating material according to claim 1, it is characterized in that: described solvent comprises the one or more kinds of mixing of tetraethoxy, methyl alcohol, methane amide, ethanol and water, four kinds of organic solvents outside above-mentioned solvent dewaters are technical grades, or the organic solvent of the chemical pure level of anhydrous level.
6. nanoscale heat insulating material according to claim 5 is characterized in that: described tetraethoxy, methyl alcohol, methane amide, ethanol and water were by weight 1: 0.5: 0.5: mixing in 0.5: 1 is used; Described water comprises ortho-water or purified deionized water.
7. nanoscale heat insulating material according to claim 1, it is characterized in that: also add nano level or micron-sized titania powder, nano level or micron-sized aluminium sesquioxide powder, perhaps other inorganic silicic acid aluminium, calcium oxide, bitter earth nano level or micron powder, its particle diameter is 5～200 nanometers or 3～10 microns, and addition is 5～30%.
8. nanoscale heat insulating material according to claim 1 is characterized in that: it constitutes component and weight percent is respectively:
Nanometer grade silica powder 20～70%
Nano level or micron order Zirconium dioxide powder or zirconium silicate powder and/or silicon carbide powder 15～35%
Strengthen with fiber 5～10%
Solubilizing agent to 100%.
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| CN200910228914A CN101705075A (en) | 2009-12-01 | 2009-12-01 | Nanoscale heat insulating material |
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| CN200910228914A CN101705075A (en) | 2009-12-01 | 2009-12-01 | Nanoscale heat insulating material |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102040390A (en) * | 2010-11-18 | 2011-05-04 | 郑州大学 | A kind of SiO2 nano/micron powder composite low-dimensional thermal insulation material and its preparation method |
| CN102432319A (en) * | 2011-09-21 | 2012-05-02 | 无锡市明江保温材料有限公司 | Nano super heat insulation plate suitable for high-temperature metallurgical container and manufacturing method thereof |
| CN102531465A (en) * | 2011-12-19 | 2012-07-04 | 福建欧诺漆科技有限公司 | High-performance microscopic microfiber building heat insulation and heat preservation slurry and using method thereof |
| CN102659437A (en) * | 2012-05-29 | 2012-09-12 | 南京工业大学 | Kiln heat-insulation board containing silicon industrial waste and preparation process thereof |
| CN102720278A (en) * | 2012-06-08 | 2012-10-10 | 青岛科瑞新型环保材料有限公司 | Improved wall insulation core board and production method thereof |
| CN102877557A (en) * | 2012-06-08 | 2013-01-16 | 青岛科瑞新型环保材料有限公司 | Wall heat preservation core plate and production method thereof |
| CN102875115A (en) * | 2012-06-08 | 2013-01-16 | 青岛科瑞新型环保材料有限公司 | Heat preserving core plate for wall and manufacturing method for core plate |
| CN102942332A (en) * | 2012-11-19 | 2013-02-27 | 无锡市明江保温材料有限公司 | Composite nano-pore heat-insulating material and preparation method thereof |
| CN103032653A (en) * | 2011-10-10 | 2013-04-10 | 福建赛特新材股份有限公司 | Composite core material for vacuum insulation panel, preparation method thereof, and vacuum insulation panel |
| CN103319111A (en) * | 2013-05-10 | 2013-09-25 | 张洋 | Novel composite heat resistance material |
| CN103964813A (en) * | 2013-01-29 | 2014-08-06 | 上海依南新材料有限公司 | Nanometer micropore thermal insulation plate and manufacturing method thereof |
| CN104446577A (en) * | 2014-10-30 | 2015-03-25 | 中钢集团洛阳耐火材料研究院有限公司 | Method for preparing nanometer microporous heat insulation plate by using silicon carbide composite fibers |
| CN106830957A (en) * | 2017-03-10 | 2017-06-13 | 天津南极星隔热材料有限公司 | A kind of nanometer level microporous heat-insulated clay |
| CN107188578A (en) * | 2017-06-16 | 2017-09-22 | 淄博悦卡电器科技有限公司 | A kind of furnace bed of electrothermal furnace and preparation technology |
| CN108383544A (en) * | 2018-04-11 | 2018-08-10 | 中山市海耐得电器科技有限公司 | Heat-barrier material composition, heat insulating mattress and preparation method thereof and cooking appliance |
| CN108424069A (en) * | 2018-03-21 | 2018-08-21 | 中国人民解放军国防科技大学 | A pouring molding high temperature resistant nano heat insulation composite material and its preparation method |
| CN109369143A (en) * | 2018-11-12 | 2019-02-22 | 天津南极星隔热材料有限公司 | A kind of high intensity nano-micro level micropore heat-barrier material |
| WO2020034647A1 (en) * | 2018-08-14 | 2020-02-20 | 广东美的厨房电器制造有限公司 | Heat insulation material and cooking device |
| CN110922200A (en) * | 2019-12-20 | 2020-03-27 | 中国建筑材料科学研究总院有限公司 | A kind of nano-powder-based thermal insulation material and preparation method thereof |
| US10627163B1 (en) * | 2019-06-06 | 2020-04-21 | Vasily Jorjadze | System and method for heating materials |
| CN111848209A (en) * | 2020-06-28 | 2020-10-30 | 航天材料及工艺研究所 | A kind of normal pressure drying nanometer thermal insulation material and preparation process thereof |
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2009
- 2009-12-01 CN CN200910228914A patent/CN101705075A/en active Pending
Cited By (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102040390B (en) * | 2010-11-18 | 2012-12-26 | 郑州大学 | A kind of SiO2 nano/micron powder composite low-dimensional thermal insulation material and its preparation method |
| CN102040390A (en) * | 2010-11-18 | 2011-05-04 | 郑州大学 | A kind of SiO2 nano/micron powder composite low-dimensional thermal insulation material and its preparation method |
| CN102432319A (en) * | 2011-09-21 | 2012-05-02 | 无锡市明江保温材料有限公司 | Nano super heat insulation plate suitable for high-temperature metallurgical container and manufacturing method thereof |
| CN103032653A (en) * | 2011-10-10 | 2013-04-10 | 福建赛特新材股份有限公司 | Composite core material for vacuum insulation panel, preparation method thereof, and vacuum insulation panel |
| CN103032653B (en) * | 2011-10-10 | 2016-02-10 | 福建赛特新材股份有限公司 | A kind of vacuum heat-insulating plate composite core material, its preparation method and vacuum heat-insulating plate |
| CN102531465A (en) * | 2011-12-19 | 2012-07-04 | 福建欧诺漆科技有限公司 | High-performance microscopic microfiber building heat insulation and heat preservation slurry and using method thereof |
| CN102531465B (en) * | 2011-12-19 | 2013-08-21 | 福建欧诺漆科技有限公司 | High-performance microscopic microfiber building heat insulation and heat preservation slurry and using method thereof |
| CN102659437A (en) * | 2012-05-29 | 2012-09-12 | 南京工业大学 | Kiln heat-insulation board containing silicon industrial waste and preparation process thereof |
| CN102720278B (en) * | 2012-06-08 | 2014-09-10 | 青岛科瑞新型环保材料有限公司 | Improved wall insulation core board and production method thereof |
| CN102875115A (en) * | 2012-06-08 | 2013-01-16 | 青岛科瑞新型环保材料有限公司 | Heat preserving core plate for wall and manufacturing method for core plate |
| CN102877557A (en) * | 2012-06-08 | 2013-01-16 | 青岛科瑞新型环保材料有限公司 | Wall heat preservation core plate and production method thereof |
| CN102877557B (en) * | 2012-06-08 | 2014-12-10 | 青岛科瑞新型环保材料有限公司 | Wall heat preservation core plate and production method thereof |
| CN102720278A (en) * | 2012-06-08 | 2012-10-10 | 青岛科瑞新型环保材料有限公司 | Improved wall insulation core board and production method thereof |
| CN102942332A (en) * | 2012-11-19 | 2013-02-27 | 无锡市明江保温材料有限公司 | Composite nano-pore heat-insulating material and preparation method thereof |
| CN102942332B (en) * | 2012-11-19 | 2014-02-05 | 无锡市明江保温材料有限公司 | Composite nano-pore heat-insulating material and preparation method thereof |
| CN103964813A (en) * | 2013-01-29 | 2014-08-06 | 上海依南新材料有限公司 | Nanometer micropore thermal insulation plate and manufacturing method thereof |
| CN103319111A (en) * | 2013-05-10 | 2013-09-25 | 张洋 | Novel composite heat resistance material |
| CN104446577A (en) * | 2014-10-30 | 2015-03-25 | 中钢集团洛阳耐火材料研究院有限公司 | Method for preparing nanometer microporous heat insulation plate by using silicon carbide composite fibers |
| CN106830957A (en) * | 2017-03-10 | 2017-06-13 | 天津南极星隔热材料有限公司 | A kind of nanometer level microporous heat-insulated clay |
| CN107188578A (en) * | 2017-06-16 | 2017-09-22 | 淄博悦卡电器科技有限公司 | A kind of furnace bed of electrothermal furnace and preparation technology |
| CN107188578B (en) * | 2017-06-16 | 2020-08-21 | 淄博悦卡电器科技有限公司 | Electric heating furnace plate and preparation process thereof |
| CN108424069A (en) * | 2018-03-21 | 2018-08-21 | 中国人民解放军国防科技大学 | A pouring molding high temperature resistant nano heat insulation composite material and its preparation method |
| CN108383544A (en) * | 2018-04-11 | 2018-08-10 | 中山市海耐得电器科技有限公司 | Heat-barrier material composition, heat insulating mattress and preparation method thereof and cooking appliance |
| WO2020034647A1 (en) * | 2018-08-14 | 2020-02-20 | 广东美的厨房电器制造有限公司 | Heat insulation material and cooking device |
| CN109369143A (en) * | 2018-11-12 | 2019-02-22 | 天津南极星隔热材料有限公司 | A kind of high intensity nano-micro level micropore heat-barrier material |
| CN109369143B (en) * | 2018-11-12 | 2020-01-21 | 天津南极星隔热材料有限公司 | High-strength nano-micron microporous thermal insulation material |
| US10627163B1 (en) * | 2019-06-06 | 2020-04-21 | Vasily Jorjadze | System and method for heating materials |
| CN110922200A (en) * | 2019-12-20 | 2020-03-27 | 中国建筑材料科学研究总院有限公司 | A kind of nano-powder-based thermal insulation material and preparation method thereof |
| CN110922200B (en) * | 2019-12-20 | 2022-04-01 | 中国建筑材料科学研究总院有限公司 | Nano-powder-based heat insulation material and preparation method thereof |
| CN111848209A (en) * | 2020-06-28 | 2020-10-30 | 航天材料及工艺研究所 | A kind of normal pressure drying nanometer thermal insulation material and preparation process thereof |
| CN111848209B (en) * | 2020-06-28 | 2023-05-09 | 航天材料及工艺研究所 | Nanometer heat insulation material dried under normal pressure and preparation process thereof |
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Application publication date: 20100512 |