CN101788096B - Nano heat insulating blanket - Google Patents

Nano heat insulating blanket Download PDF

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Publication number
CN101788096B
CN101788096B CN 201010300589 CN201010300589A CN101788096B CN 101788096 B CN101788096 B CN 101788096B CN 201010300589 CN201010300589 CN 201010300589 CN 201010300589 A CN201010300589 A CN 201010300589A CN 101788096 B CN101788096 B CN 101788096B
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powder
heat insulating
fiber
nano heat
nanometer
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CN101788096A (en
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刘礼龙
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刘礼龙
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Abstract

The invention relates to a nano heat insulating blanket; the blanket comprises the following components in percentage by weight: 15 to 35 percent of nano-silica powder, 20 to 55 percent of nano or micron powder additive, and the fiber is added to 100 percent; the main steps of the preparation method comprise powder material pre-mixing, mixing of powder material mixture and the fiber, forming, calcining, surface treatment and product finishing. The maximum fiber length adopted by the invention reaches 100mm, the prepared calcine is soft and bendable, has a folding function, facilitates engineering production, has performance that the traditional heat insulating product does not have, is widely applied in all aspects in high-temperature heat insulation, low-temperature heat insulation, cold keeping and other heat insulation and energy-saving fields, and has wide application prospect.

Description

A kind of nano heat insulating blanket
Technical field
The invention belongs to heat-insulating heat-preserving material field, especially a kind of nano heat insulating blanket.
Background technique
China is an energy consumption big country, and the annual various energy summations that consume are equivalent to 1,500,000,000 tons of standard coals, and wherein 40% left and right is the energy consumption of industry equipment.At present, requirement for the national energy-saving reduction of discharging, the State Council has been formulated a series of laws and regulations relevant to the high energy consumption manufacturing mechanism, to reducing industrial energy consumption, one of main method that wherein reduces energy consumption is installed heat insulating board exactly in manufacturing mechanism, manufacturing mechanism is heat insulation, to reach the purpose of reduction equipment energy consumption.
That existing high temperature insulating warming plate generally adopts is glass wool, rock wool and ceramic fiber (600 ℃ of thermal conductivity λ≤0.15W/mK, 800 ℃ of λ≤0.20W/mK) etc. as heat-insulating heat-preserving material, the problem of its existence is: because the thermal conductivity of the materials such as glass wool, rock wool, ceramic fiber is larger, can't satisfy the requirement of higher heat-shielding performance, for obtaining better effect of heat insulation, the thermal conductivity of existing thermal-protective material is obviously excessive, can not meet the needs of production.
By retrieval, find the patent of two pieces of thermal-protective materials close with the present patent application, the patent No. is that 200820020785.9 patent discloses a kind of high temperature insulating blanket, and it comprises the glass layer of fibers, be layer of silica gel under the glass layer of fibers, also have layer of glass fiber dimension layer under described layer of silica gel.The patent of the patent No. 94119752.2 discloses a kind of take waterproof and heat-proof powder as main raw material, is clipped in the middle of cloth, the Novel waterproof thermal insulation blanket of being processed into, and above-mentioned two pieces of documents and the present patent application have more different.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of softness flexible nano heat insulating blanket, this nano heat insulating blanket have good heat-insulation effect, thermal conductivity low, produce characteristics simple, with low cost.
The objective of the invention is to be achieved through the following technical solutions:
A kind of nano heat insulating blanket is characterized in that: it consists of component and weight percentage is respectively:
Nanometer grade silica powder 15-35%
Nanometer or micron powder addition material 20-55%
All the other add fiber to 100%.
And described nanometer grade silica powder comprises the aerosil powder.
And described nanometer grade silica powder diameter is 5~200 nanometers.
And described nanometer or micron powder addition material are one of them or mixture of Zirconium dioxide powder, zirconium silicate powder or silicon carbide powder.
And the particle diameter of described nanometer or micron powder addition material is 5~200 nanometers or 3~10 microns.
And described fiber is inanimate matter short fibre and/or continuous fiber.
And described fiber comprises glass fibre, rock wool, aluminum silicate fiber, silicon oxide fibre, alumina fibre, high-siloxy fibre or mullite fiber, and length is 5~100 millimeters.
And described nanometer or micron powder addition material also comprise titania powder, aluminium sesquioxide powder, alumina silicate, calcium oxide or magnesium oxide, and its particle diameter is 5~200 nanometers or 3~10 microns.
Advantage of the present invention and good effect are:
1, raw material sources of the present invention extensively, lower cost for material, production method is simple, all adopts existing industry equipment and production technology, does not need special manufacturing mechanism, effectively saves into the product cost.
2, the nano heat insulating blanket that makes of the present invention, raw materials used nanometer or the micron order of being can effectively be lowered into the thermal conductivity of output finished product, is 100~300Kg/m as the density of the finished product of this product 3, 0.030~0.055W/mK when thermal conductivity is 800 ℃, during than 800 ℃ of ceramic fiber, 0.12~0.20W/mK is lower, can be widely used in high temperature insulating, low temperature is heat insulation and the All aspects of such as the heat-insulating and energy-saving such as cold insulation field, has a extensive future.
3, the length of staple of the present invention's employing reaches 100 millimeters most, and prepared nano heat insulating blanket softness is flexible, has folder function, has facilitated engineer operation, has the performance that existing insulation products does not have, and market prospects are boundless.
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 nano heat insulating blanket, it consists of component and weight is (calculating by the heat-insulation blanket of producing 1000Kg):
A kind of production method of nano heat insulating blanket, key step is as follows:
By weight ratio the nanometer powder except fiber is evenly mixed with aluminum silicate fiber, all can mix under dry state or hygrometric state, direct weighting forming technique or with traditional vacuum forming technology pre-shaping after mixing, dry after after the pre-contraction of calcining, carry out again the fine finishing on surface, at last product protection.
The nano heat-insulating blanket that makes thus, its density is at 100~300Kg/m 3, thermal conductivity is 0.035~0.055W/mK in the time of 800 ℃.
In the present embodiment, acting as of fiber increases heat-insulation blanket intensity use, this fiber is inanimate matter short fibre and/or continuous fiber, comprise glass fibre, rock wool, aluminum silicate fiber, silicon oxide fibre, alumina fibre, high-siloxy fibre or mullite fiber, optimum length is 5~100 millimeters.
Embodiment 2:
A kind of nano heat insulating blanket, it consists of component and weight is respectively (calculating by the heat-insulation blanket of producing 1000Kg):
A kind of production method of nano heat insulating blanket, key step is as follows:
Nanometer powder dry state except the silicic acid aluminum fiber or hygrometric state are mixed formation dry state mixture or hygrometric state mixture, add the powder materials mixture when the aluminum silicate fiber moulding, in dry state mixture or hygrometric state mixture being joined aluminum silicate fiber in aluminum silicate fiber winding-up or when getting rid of a thread moulding, then be gathered into cotton embryo, become the blanket shape through acupuncture, then through packing warehouse-in after blanket oven pre-burning typing.
The nano heat-insulating blanket that makes thus, its density is at 100~300Kg/m 3, thermal conductivity is 0.035~0.055W/mK in the time of 800 ℃, and during than 800 ℃ of ceramic fiber, 0.12~0.20W/mK is much lower, is a kind of extraordinary nanoscale heat insulating material.
Embodiment 3:
A kind of nano heat insulating blanket, it consists of component and weight is (calculating by the heat-insulation blanket of producing 1000Kg):
The step of its production method is with embodiment 1.
Embodiment 4:
A kind of nano heat insulating blanket, it consists of component and weight is (calculating by the heat-insulation blanket of producing 1000Kg):
The step of its production method is with embodiment 2.
Embodiment 5:
A kind of nano heat insulating blanket, it consists of component and weight is (calculating by the heat-insulation blanket of producing 1000Kg):
The step of its production method is with embodiment 2.

Claims (8)

1. nano heat insulating blanket is characterized in that: it consists of component and weight percentage is respectively:
Nanometer grade silica powder 15-35%
Nanometer or micron powder addition material 20-55%
All the other add fiber to 100%.
2. a kind of nano heat insulating blanket according to claim 1, it is characterized in that: described nanometer grade silica powder comprises the aerosil powder.
3. a kind of nano heat insulating blanket according to claim 1 and 2, it is characterized in that: described nanometer grade silica powder diameter is 5~200 nanometers.
4. a kind of nano heat insulating blanket according to claim 1 is characterized in that: described nanometer or micron powder addition material are one of them or mixture of Zirconium dioxide powder, zirconium silicate powder or silicon carbide powder.
5. according to claim 1 or 4 described a kind of nano heat insulating blankets is characterized in that: the particle diameter of described nanometer or micron powder addition material is 5~200 nanometers or 3~10 microns.
6. a kind of nano heat insulating blanket according to claim 1, it is characterized in that: described fiber is inanimate matter short fibre and/or continuous fiber.
7. according to claim 1 or 6 described a kind of nano heat insulating blankets, it is characterized in that: described fiber comprises glass fibre, rock wool, aluminum silicate fiber, silicon oxide fibre, alumina fibre, high-siloxy fibre or mullite fiber, length is 5~100 millimeters.
8. a kind of nano heat insulating blanket according to claim 1, it is characterized in that: described nanometer or micron powder addition material also comprise titania powder, aluminium sesquioxide powder, alumina silicate, calcium oxide or magnesium oxide, and its particle diameter is 5~200 nanometers or 3~10 microns.
CN 201010300589 2010-01-22 2010-01-22 Nano heat insulating blanket Active CN101788096B (en)

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Families Citing this family (13)

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CN102040390B (en) * 2010-11-18 2012-12-26 郑州大学 SiO2 nano/micron powder composite low-dimension thermal insulation material and preparation method thereof
CN102229263B (en) * 2011-04-12 2013-06-05 三祥新材股份有限公司 Zirconium oxide fiber heat insulation blanket
CN102605553B (en) * 2012-03-15 2015-06-17 苏州伊索来特耐火纤维有限公司 Production method of 1500 DEG C chromium-free alumina silicate fiber carpet
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
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
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
CN105563950B (en) * 2014-10-10 2017-12-29 山东大学 It is a kind of to be applied to liquid gas storage, the ultralow temperature compound insulating material of transporting equipment
CN104402490A (en) * 2014-10-30 2015-03-11 中钢集团洛阳耐火材料研究院有限公司 Preparation method of nano-scale microporous thermal insulation plate with good flexibility
CN105274729A (en) * 2015-09-07 2016-01-27 世纪良基投资集团有限公司 Application of glass wool as thermal insulation material
CN105274730A (en) * 2015-09-07 2016-01-27 世纪良基投资集团有限公司 Glass wool
CN105217949A (en) * 2015-09-07 2016-01-06 世纪良基投资集团有限公司 A kind of preparation method of glass wool
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
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

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CN1214319A (en) * 1997-10-10 1999-04-21 同济大学 Modified nanometer heat insulating material and its production process
US20040163345A1 (en) * 2002-01-04 2004-08-26 Alderman Robert J. Blanket heat insulation with facing radiant barrier
CN1594197A (en) * 2004-06-25 2005-03-16 谭旭松 Nano biological silica dioxide heat insulating material
CN101219873A (en) * 2007-01-12 2008-07-16 上海船舶工艺研究所 Nano-porous thermal insulating material and method for producing the same
CN101468906A (en) * 2007-12-27 2009-07-01 上海暄洋化工材料科技有限公司 SiO2 enriched nano composite inorganic flame-retardant heat insulating thermal preserving board and manufacturing process thereof

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JP2000343634A (en) * 1999-06-07 2000-12-12 Mitsubishi Chemicals Corp Heat resistant mat

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1214319A (en) * 1997-10-10 1999-04-21 同济大学 Modified nanometer heat insulating material and its production process
US20040163345A1 (en) * 2002-01-04 2004-08-26 Alderman Robert J. Blanket heat insulation with facing radiant barrier
CN1594197A (en) * 2004-06-25 2005-03-16 谭旭松 Nano biological silica dioxide heat insulating material
CN101219873A (en) * 2007-01-12 2008-07-16 上海船舶工艺研究所 Nano-porous thermal insulating material and method for producing the same
CN101468906A (en) * 2007-12-27 2009-07-01 上海暄洋化工材料科技有限公司 SiO2 enriched nano composite inorganic flame-retardant heat insulating thermal preserving board and manufacturing process thereof

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