CN101619797B - Heat-insulation film and preparation method thereof - Google Patents
Heat-insulation film and preparation method thereof Download PDFInfo
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- CN101619797B CN101619797B CN 200910164971 CN200910164971A CN101619797B CN 101619797 B CN101619797 B CN 101619797B CN 200910164971 CN200910164971 CN 200910164971 CN 200910164971 A CN200910164971 A CN 200910164971A CN 101619797 B CN101619797 B CN 101619797B
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Abstract
The invention relates to heat insulation materials, in particular to a heat-insulation film and a preparation method thereof. The heat-insulation film is in a layered structure, a film system structure of the heat-insulation film is formed by multiple layers of heat-insulation units in a compounding way, and each layer of heat insulation unit is arranged in the same direction; each layer of heat insulation unit comprises a substrate layer and an aerogel layer; the substrate layer is a polyimide or carbon fiber film, and the aerogel layer is porous silica dixide aerogel; and in addition, a high-temperature glue layer is also arranged between every two adjacent heat insulation units. The preparation method of the heat insulation film comprises the following steps: firstly, providing substrates; secondly, coating the aerogel on the single face of each substrate; thirdly, drying a semifinished product prepared in the step two into a heat-insulation unit; and fourthly, compounding multiple layers of the heat insulation units. The invention provides the heat-insulation film which has small volume, convenient use and no environmental pollution as well as the preparation method thereof.
Description
Technical field
The present invention relates to thermal-protective material, relate in particular to a kind of thermal isolation film and preparation method thereof.
Background technique
Thermal-protective material is widely used in to be produced and sphere of life.Because heat insulation bad and the heat energy that causes is revealed, its consequence has been not only the loss of heat energy, also can produce thermo-pollution.
For the medium more than 300 degrees centigrade, need heat insulation occasion, heat insulation as the high-temperature steam conveyance conduit, existing thermal-protective material adopts asbestos material more, also have at asbestos outsourcing one deck aluminium platinum, to increase effect of heat insulation.
Existing asbestos insulation material, volume is large, uses inconvenience; Harmful because of asbestos, asbestos easily splash to the space, can cause environmental pollution.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art part and provide a kind of volume little easy to use, and there is no the thermal isolation film of environmental pollution.
Second purpose of the present invention is to provide a kind of method for preparing above-mentioned thermal isolation film.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of thermal isolation film has stratiform structure, it is characterized in that: the film structure of this thermal isolation film is being composited of multilayer insulation cell formation, and each layer insulating unit arranges in the same way; Every layer of insulating unit is comprised of substrate layer and aerogel layer; Described substrate layer is polyimide or carbon-fiber film, and described aerogel layer is the porous silica aerogel; And, also have a high temperature glue-line between adjacent insulating unit.
Thermal isolation film is characterized in that: described porous silica aerogel layer is made of the porous silica aerogel particle, and described porous silica aerogel particle is nano-scale particle.
Thermal isolation film is characterized in that: the outside of outermost substrate layer also is provided with an aluminium coated or a silver plating layer.
Thermal isolation film is characterized in that: the number of plies of described insulating unit is between 3 layers to 50 layers.Test conditions existing according to the inventor is less than 3 layers of its effect of heat insulation and do not have advantage, and be too high more than 50 layers of cost, and create conditions by existing, the thickness of substrate layer and porous aerogel layer also can not be made into nanometer, and during more than 50 layers, thickness and the toughness of thermal isolation film are undesirable.
Thermal isolation film is characterized in that: the number of plies of described insulating unit is 3 layers, or 5 layers, or 7 layers, or 10 layers, or 15 layers, or 19 layers, or 23 layers, or 30 layers, or 36 layers, or 40 layers, or 45 layers, or 50 layers.
Thermal isolation film is characterized in that: the thickness of described substrate layer is between 0.01mm to 0.08mm.Create conditions according to existing, skeleton function when not having less than 0.1mm, greater than 0.08 o'clock, toughness was undesirable.
Thermal isolation film is characterized in that: the thickness of described substrate layer is 0.01mm, or 0.02mm, or 0.03mm, or 0.04mm, or 0.05mm, or 0.06mm, or 0.07mm, or 0.08mm.
Thermal isolation film is characterized in that: the thickness of described aerogel layer is between 0.01mm to 0.3mm.This is optimal insulating thickness, and during less than 0.01mm, fabricating cost is high, and effect of heat insulation is also unstable, during greater than 0.3mm effect of heat insulation with the increase of aerogel layer thickness increase not obvious, cause waste.
Thermal isolation film is characterized in that: the thickness of described aerogel layer is 0.01mm, or 0.02mm, or 0.03mm, or 0.035mm, or 0.04mm, or 0.05mm, or 0.08mm, or 0.1mm, or 0.15mm, or 0.2mm, or 0.25mm, or 0.3mm.
Thermal isolation film is characterized in that: the outside of outermost substrate layer also is provided with an aluminium coated; The number of plies of described insulating unit is 10 layers; The thickness of described substrate layer is 0.03mm; The thickness of described aerogel layer is 0.05mm.
Thermal isolation film is characterized in that: outermost two faces of this thermal isolation film are equipped with aluminium coated or silver plating layer.
Purpose of the present invention can also be achieved through the following technical solutions:
A kind of thermal isolation film preparation method is characterized in that comprising the following steps:
(1) provide base material;
(2) at base material single face coated gas gel;
(3) semi-finished product of (2) step being made are dried into insulating unit;
(4) the multilayer insulation unit is compound;
Wherein, (1) alleged base material of step is polyimide or carbon-fiber film; (2) alleged aerogel of step is the porous silica aerogel; (4) step alleged compound be compound with pressure after inserting high-temp glue between two layers of insulating unit, and each insulating unit arranges in the same way.
Thermal isolation film preparation method is characterized in that, replaces the alleged coating of (2) step in the mode of printing or spray.
Thermal isolation film preparation method is characterized in that, substrate layer outermost surface insulating unit outwardly, and its (1) step single face that provides sets in advance the base material of aluminium coated.
Thermal isolation film preparation method is characterized in that, aluminizes with silver-plated replacement.
Thermal isolation film preparation method is characterized in that, also comprises for (5) step, porous aerogel layer outermost surface insulating unit outwardly, and its surperficial also compound one deck single face sets in advance the base material of aluminium coated.
Thermal isolation film preparation method is characterized in that, (2) described aerosil is nano-scale particle, is modulated into dispersing agent to be coated with after watery.Dispersing agent can adopt the varnish of using in printing.First be modulated into and wateryly be coated with again the thickness minimum that can fully guarantee the silicon dioxide aerogel layer can to reach 0.01mm even thinner, and guarantee that coating is even.
Thermal isolation film of the present invention, being composited of multilayer insulation cell formation, every layer of insulating unit is comprised of substrate layer and aerogel layer; Described substrate layer is polyimide or carbon-fiber film, and described aerogel layer is the porous silica aerogel.Polyimide or carbon-fiber film itself have heat-blocking action, and temperature resistant range plays skeleton function to thermal isolation film at least between-269 degrees centigrade to 400 degrees centigrade; The porous silica aerogel has the high porosity, has very effectively stoped convection current and the solid conduction of heat from many pores; Thermal isolation film of the present invention is had an effect step by step by the multilayer insulation unit, prevents that the gas in each layer porous silica aerogel from flowing mutually, and effect of heat insulation is better.Thermal isolation film of the present invention is a kind of film, compares with asbestos material, and little many of volume, and only need carry out simple cutting and can directly use have a volume little easy to use.Compared with prior art, thermal isolation film of the present invention is harmless, and can not cause environmental pollution to the same asbestos that splash towards periphery of asbestos material.Another technological scheme of the present invention is the preparation method of above-mentioned thermal isolation film, thereby proposes as an application.
Description of drawings
Fig. 1 is the film structure figure of the thermal isolation film of first embodiment of the invention.
Fig. 2 is the flow chart of fifth embodiment of the invention.
Embodiment
The invention will be further described below in conjunction with accompanying drawing.
With reference to figure 1, first embodiment of the present invention is a kind of thermal isolation film, has stratiform structure, and the film structure of this thermal isolation film is being composited of multilayer insulation cell formation, and each layer insulating unit arranges in the same way; Every layer of insulating unit is comprised of substrate layer 101 and aerogel layer 102; Described substrate layer 101 is polyimide or carbon-fiber film, and described aerogel layer 102 is porous silica aerogels; And, also have a high temperature glue-line 103 between adjacent insulating unit.Described porous silica aerogel layer is made of the porous silica aerogel particle, and described porous silica aerogel particle is nano-scale particle.The outside of outermost substrate layer also is provided with an aluminium coated 104; In the present embodiment, the number of plies of described insulating unit is 4 layers; The thickness of described substrate layer is a=0.03mm; The thickness of described aerogel layer is b=0.05mm.
Second embodiment of the present invention is also a kind of thermal isolation film, is with the difference of first embodiment of the invention, and described insulating unit has 10 layers.
The 3rd embodiment of the present invention is also a kind of thermal isolation film, is with first embodiment's of the present invention difference, and the outside of outermost substrate layer is provided with a silver plating layer, rather than aluminium coated.
The 4th embodiment of the present invention is also a kind of thermal isolation film, is with first embodiment's of the present invention difference, and outermost two faces of this thermal isolation film are equipped with aluminium coated; A base material side outwardly uses the base material that pre-sets aluminium coated to make described insulating unit; The another compound one deck of an aerogel layer side outwardly pre-sets the base material of aluminium coated.
With reference to figure 2, the 5th embodiment of the present invention is a kind of preparation method of thermal isolation film, comprises the following steps:
(1) provide base material;
(2) at base material single face coated gas gel;
(3) semi-finished product of (2) step being made are dried into insulating unit;
(4) the multilayer insulation unit is compound;
Wherein, (1) alleged base material of step is polyimide or carbon-fiber film; (2) alleged aerogel of step is the porous silica aerogel; (4) step alleged compound be compound with pressure after inserting high-temp glue between two layers of insulating unit, and each insulating unit arranges in the same way.Wherein, (2) described aerosil is nano-scale particle, is modulated into dispersing agent to be coated with after watery.Dispersing agent can adopt the varnish of using in printing.
The 6th embodiment of the present invention is a kind of conversion to fifth embodiment of the invention, is with the 5th embodiment's difference, replaces the alleged coating of (2) step in the mode of printing or spraying.
The 7th embodiment of the present invention is also a kind of conversion to fifth embodiment of the invention, be with the 5th embodiment's difference, substrate layer outermost surface insulating unit outwardly, its (1) step single face that provides sets in advance the base material of aluminium coated.For the thermal isolation film that scratch resistant demand is arranged, aluminium coated can be arranged on the substrate layer inboard.
The 8th embodiment of the present invention is also a kind of conversion to seventh embodiment of the invention, be with the 7th embodiment's difference, and porous aerogel layer outermost surface insulating unit outwardly, its surface also compound one deck single face sets in advance the base material of aluminium coated.
Claims (4)
1. a thermal isolation film, have stratiform structure, it is characterized in that: the film structure of this thermal isolation film is for by the multilayer insulation cell formation, and thermal isolation film is composited by the multilayer insulation unit, and each layer insulating unit arranges in the same way; Every layer of insulating unit is comprised of a substrate layer and an aerogel layer; Described substrate layer is polyimide or carbon-fiber film, and described aerogel layer is the porous silica aerogel; And, also have a high temperature glue-line between adjacent insulating unit; The outside of outermost substrate layer also is provided with an aluminium coated or a silver plating layer; The number of plies of described insulating unit is between 3 layers to 50 layers; The thickness of described substrate layer is between 0.01mm to 0.08mm; The thickness of described aerogel layer is between 0.01mm to 0.3mm; The outside of the outermost aerogel layer of this thermal isolation film also is provided with an aluminium coated or a silver plating layer.
2. thermal isolation film according to claim 1, it is characterized in that: the number of plies of described insulating unit is 3 layers, or 5 layers, or 7 layers, or 10 layers, or 15 layers, or 19 layers, or 23 layers, or 30 layers, or 36 layers, or 40 layers, or 45 layers, or 50 layers.
3. thermal isolation film according to claim 1, it is characterized in that: the thickness of described substrate layer is 0.01mm, or 0.02mm, or 0.03mm, or 0.04mm, or 0.05mm, or 0.06mm, or 0.07mm, or 0.08mm.
4. thermal isolation film according to claim 1, it is characterized in that: the thickness of described aerogel layer is 0.01mm, or 0.02mm, or 0.03mm, or 0.035mm, or 0.04mm, or 0.05mm, or 0.08mm, or 0.1mm, or 0.15mm, or 0.2mm, or 0.25mm, or 0.3mm.
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| CN 200910164971 CN101619797B (en) | 2009-06-09 | 2009-07-28 | Heat-insulation film and preparation method thereof |
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| CN200910107923 | 2009-06-09 | ||
| CN200910107923.6 | 2009-06-09 | ||
| CN 200910164971 CN101619797B (en) | 2009-06-09 | 2009-07-28 | Heat-insulation film and preparation method thereof |
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| CN101619797A CN101619797A (en) | 2010-01-06 |
| CN101619797B true CN101619797B (en) | 2013-06-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111005463A (en) * | 2019-12-24 | 2020-04-14 | 巩义市泛锐熠辉复合材料有限公司 | Heat insulation sandwich layer and preparation method thereof |
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| CN101799099B (en) * | 2010-04-16 | 2011-08-31 | 中国人民解放军国防科学技术大学 | Nanometer multiple-layer composite thermal insulation material and preparation method thereof |
| CN103123033A (en) * | 2011-11-18 | 2013-05-29 | 加贺开发科技有限公司 | Heat-insulating film |
| CN104276851A (en) * | 2014-09-10 | 2015-01-14 | 吴建坤 | Manufacturing technique of silicon dioxide aerogel heat-insulation film |
| CN104210211A (en) * | 2014-09-28 | 2014-12-17 | 中申（上海）管道工程股份有限公司 | High-temperature-resisting gel composite heat-preservation material |
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| CN106244042B (en) * | 2016-08-22 | 2020-01-10 | 惠州市浩明科技股份有限公司 | Heat-insulating adhesive material |
| CN108099289A (en) * | 2017-12-22 | 2018-06-01 | 温州玉苍新材料有限公司 | A kind of food packing film |
| WO2019188158A1 (en) * | 2018-03-30 | 2019-10-03 | パナソニックＩｐマネジメント株式会社 | Heat-insulating body, heat-insulating sheet using same, and method for manufacturing heat-insulating body |
| CN108957817A (en) * | 2018-06-11 | 2018-12-07 | 中国电子科技集团公司第五十五研究所 | A kind of ultra-thin reinforcing LCD assembly of low cost and its structure |
| CN112625288B (en) * | 2020-12-08 | 2022-08-19 | 苏州市君悦新材料科技股份有限公司 | Organic-inorganic hybrid heat insulation film based on MOF/aerogel composite modification and preparation method thereof |
| CN114414622B (en) * | 2022-01-25 | 2024-03-19 | 北京卫星环境工程研究所 | Universal composite heat insulation method suitable for vacuum and normal pressure environment |
| CN115056547A (en) * | 2022-07-26 | 2022-09-16 | 佛山(华南)新材料研究院 | Heat insulation ceramic tile and preparation method thereof |
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| US4323620A (en) * | 1978-06-30 | 1982-04-06 | Yuasa Battery Company Limited | Multilayer heat insulator |
| EP0243827A1 (en) * | 1986-04-28 | 1987-11-04 | Craig H. Cover | Multilayered insulation batt for building structures |
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| CN111005463A (en) * | 2019-12-24 | 2020-04-14 | 巩义市泛锐熠辉复合材料有限公司 | Heat insulation sandwich layer and preparation method thereof |
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Application publication date: 20100106 Assignee: SHENZHEN YUHUITONG TECHNOLOGY CO., LTD. Assignor: Shen Zhen Goldscome Industry Limited Contract record no.: 2013440020362 Denomination of invention: Heat-insulation film and preparation method thereof Granted publication date: 20130605 License type: Exclusive License Record date: 20131205 |
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