CN102729316A - Preparation method of vacuum heat insulating plate - Google Patents
Preparation method of vacuum heat insulating plate Download PDFInfo
- Publication number
- CN102729316A CN102729316A CN2012102373303A CN201210237330A CN102729316A CN 102729316 A CN102729316 A CN 102729316A CN 2012102373303 A CN2012102373303 A CN 2012102373303A CN 201210237330 A CN201210237330 A CN 201210237330A CN 102729316 A CN102729316 A CN 102729316A
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- China
- Prior art keywords
- preparation
- insulation panel
- vacuum insulation
- core
- compound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 239000000463 material Substances 0.000 claims abstract description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000835 fiber Substances 0.000 claims abstract description 15
- 230000005855 radiation Effects 0.000 claims abstract description 12
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 7
- 238000009413 insulation Methods 0.000 claims description 34
- 150000001875 compounds Chemical class 0.000 claims description 23
- 239000000843 powder Substances 0.000 claims description 16
- 230000004888 barrier function Effects 0.000 claims description 14
- 239000004615 ingredient Substances 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 7
- 241000196324 Embryophyta Species 0.000 claims description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 235000010215 titanium dioxide Nutrition 0.000 claims description 4
- 229910002012 Aerosil® Inorganic materials 0.000 claims description 3
- 239000006229 carbon black Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 229910010271 silicon carbide Inorganic materials 0.000 claims description 3
- 240000007594 Oryza sativa Species 0.000 claims description 2
- 235000007164 Oryza sativa Nutrition 0.000 claims description 2
- 239000002956 ash Substances 0.000 claims description 2
- 239000011324 bead Substances 0.000 claims description 2
- 239000010881 fly ash Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 239000010451 perlite Substances 0.000 claims description 2
- 235000019362 perlite Nutrition 0.000 claims description 2
- 235000009566 rice Nutrition 0.000 claims description 2
- 229910021487 silica fume Inorganic materials 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 238000005086 pumping Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 239000011162 core material Substances 0.000 abstract 4
- 239000000203 mixture Substances 0.000 abstract 3
- 239000012876 carrier material Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 10
- 239000005030 aluminium foil Substances 0.000 description 3
- 238000000748 compression moulding Methods 0.000 description 3
- 239000003365 glass fiber Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 229920006257 Heat-shrinkable film Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920006284 nylon film Polymers 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Landscapes
- Thermal Insulation (AREA)
Abstract
The invention discloses a preparation method of a vacuum heat insulating plate. The preparation method comprises the following steps of: (1) placing main materials containing over 98% of silica content, a radiation separating agent and reinforced fibers which are weighted based on ratio into agitating equipment for agitating to obtain a mixture material; (2) transmitting the mixture material into a die; (3) pressing the mixture material in the die at 0.4 to 2MPa to form a core material; (4) parching the core material for 10 to 120 minutes at 100 to 300 DEG C; (5) arranging the core material prepared in step (4) into a ventilate and powder-out-of-permeating material for wrapping without seam, and placing the wrapped core material into a bag made of a high carrier material so as to obtain the product; and (6) processing the product in step (5) by pumping vacuum and sealing the port. The preparation method has the advantage that the prepared product has high fire resistance, low thermal conductivity coefficient, long service life, low cost, and simplicity in preparation technology.
Description
Technical field
The present invention relates to the thermal insulation board preparing technical field, particularly the preparation method of vacuum insulation panel.
Background technology
Vacuum insulation panel is widely used in fields such as refrigerator, building, industrial heat preservation at present.Characteristics such as that prior art mainly exists is on the high side, complex manufacturing, fire protecting performance difference.The material that this field prior art mainly adopts comprises: 1, the heat insulation fiber of heatproof, referring to Chinese patent number: 200610021567.2 " vacuum insulation panel and preparation methods "; 2, open-cell polyurethane is referring to Chinese patent: 00106049.X number " making the method for vacuum heat-insulating material core ".The heat insulation fiber of employing heatproof is that the vacuum insulation panel of core is applied to refrigerator and refrigeration field of thermal insulation mostly; Its main feature is that its initial thermal conductivity coefficient is low; Service life is shorter, need to add the getter life-saving, in case and product vacuum itself lose and cause bulge easily.Materials such as employing polyurethane are that core is relatively poor owing to its fire protecting performance, can not satisfy the demand of building field.
Summary of the invention
The objective of the invention is to provide a kind of preparation method of novel evacuated thermal insulation board, can solve one or more in the above-mentioned prior art problem.
According to an aspect of the present invention; A kind of preparation method of vacuum insulation panel is provided, has comprised step: the dioxide-containing silica that (1) will weigh up is in proportion inserted to stir in the mixing plant greater than 98% major ingredient, radiation barrier and fortifying fibre and is obtained compound; (2) compound is sent in the mould; (3) compound in the mould is pressed into core with the pressure of 0.4 ~ 2 MPa; (4) place 100 ~ 300 degrees centigrade to toast 10 ~ 120 minutes core; (5) will put into material ventilative and that do not pass through powder through the core that step (4) obtain earlier and carry out seamless parcel, the sack that the core after will wrapping up again places high barrier material to process obtains goods; (6) step (5) goods are vacuumized, seal.
The core that the prepared vacuum insulation panel of the present invention is selected for use mostly is the material that is prone to obtain with low cost, and characteristic such as can satisfy that fire protecting performance is good, thermal conductivity coefficient is low, long service life, processing technology are simple is fit to large batch of suitability for industrialized production.Not only can satisfy the demand of traditional vacuum thermal insulation board institute application; Can also be applied to simultaneously the fields such as insulation, kiln insulation or building heat preservation of freezing equipment manufacturing industry, aerospace industry, auto industry, industrial pipeline in large quantity, the effect that play long-acting insulation, cuts down the consumption of energy.
In some embodiments, in said step (1) before, place 94 ~ 105 degrees centigrade of difference heated bakings more than 5 minutes major ingredient, radiation barrier and fortifying fibre, insert the feed bin of nitrogen protection again.Thus, can have the effect that makes raw material fully dry.
In some embodiments, said step (1) major ingredient, radiation barrier and fortifying fibre are inserted stir in the mixing plant in, with the tank diameter of 94 ~ 105 degrees centigrade of heated and stirred equipment.Thus, can have the effect that makes raw material fully dry.
The mode of in step (2) said compound being pumped with vacuum in some embodiments, is sent in the mould.Thus, has all even effect of avoiding the secondary arrangement of stone.
In some embodiments, with the pressure of 0.8 ~ 1.6 MPa the compound in the mould is pressed into core in step (3).Thus, has the effect of guaranteeing that the core moulding is fine and close.
In some embodiments, in step (4) core was toasted in 150 ~ 250 degrees centigrade 40 ~ 100 minutes.Thus, has the dry effect of sufficient of core.
In some embodiments, in step (6) goods that step (5) obtains are evacuated to 0.1 ~ 10 Pascal.Thus, has the effect that reduces the vacuum insulation panel thermal conductivity factor.
In some embodiments, the mass ratio of major ingredient, radiation barrier and fortifying fibre is 50 ~ 100:5 ~ 25:1 ~ 10.Thus, it is low to have a vacuum insulation panel thermal conductivity factor, long service life, and Fiber Distribution is even, and finished product is solid, be difficult for the effect of loosing.
In some embodiments, major ingredient is that one or both reach above combination in aerosil powder, precipitated silica, SILICA FUME, rice hull ash, glass bead powder, flyash and the perlite powder.Thus, has the effect that cost of material is cheap, be easy to get.
In some embodiments, the radiation barrier is that one or both reach above combination in carborundum, titanium white powder and the carbon black.Thus, has the effect that cost of material is cheap, be easy to get.
The specific embodiment
Below through embodiment the present invention is described further, but protection domain does not receive the restriction of these embodiment.
Embodiment 1:
Precipitated silica, titanium white powder (titanium dioxide), polyester fiber are dropped in the mixer with the ratio (mass ratio) of 50:5:1 successively, stir after 5 minutes, obtain compound.Feed bin is positioned at the below of mixer, opens the mixer baiting valve, the compound feed bin that bleeds.Through vacuum drawn the compound in the feed bin is delivered in the mould in the cold press.After material to be mixed is full of mould, compound is suppressed, obtained core after the compression moulding with the pressure of 2 MPas.Core is put into dryer, and baking is 60 minutes under 100 degrees centigrade temperature.To pack into through the core of baking and carry out seamless parcel in the non-woven bag, will be inserted in the aluminium foil bag of MULTILAYER COMPOSITE through the core of nonwoven parcel again, and send into vaccum-pumping equipment and be evacuated to 0.1 Pascal and seal.The density of the vacuum insulation panel that obtains is 400kg/m
3, reach 0.0058W/mk through the test thermal conductivity coefficient.Seamless parcel is meant core is placed between two blocks of nonwoven that through warming and pressurizing that the edge of two blocks of nonwoven is bonding, core just is placed in the seamless non-woven bag.Nonwoven is a kind of ventilative material that does not pass through powder, and when vacuumizing, the gas in the core can be taken away, and powder can be by the non-woven bag retaining in bag, in order to avoid fly away everywhere.
Embodiment 2:
Aerosil, carbon black, polypropylene fibre are dropped in the mixer with the ratio (mass ratio) of 50:25:1 successively, stirred 5 minutes, when stirring,, obtain compound with the tank diameter of 94 ~ 105 degrees centigrade temperature heated and stirred equipment.Feed bin is positioned at the below of mixer, opens the mixer baiting valve, the compound feed bin that bleeds.Through vacuum drawn the compound in the feed bin is delivered in the mould in the cold press.After material to be mixed is full of mould, compound is suppressed, obtained core after the compression moulding with the pressure of 1.6 MPas.Core is put into dryer, and baking is 50 minutes under 110 degrees centigrade temperature.Core after the baking packed into carry out seamless parcel in the POF film (multi-layer co-extruded Polyolefin Heat Shrinkable Film), will be inserted in the top layer through the core of POF film parcel again, send into vaccum-pumping equipment and be evacuated to 10 Pascals and seal with in the aluminium foil bag of glass fibre.The density of the vacuum insulation panel that obtains is 287kg/m
3, reach 0.0093W/mk through the test thermal conductivity coefficient.
Embodiment 3:
Place 94 ~ 105 degrees centigrade of difference heated bakings more than 5 minutes with the ratio (mass ratio) of 50:5:10 in precipitated silica, carborundum, glass fibre, drop into successively then in the mixer, stir after 5 minutes, obtain compound.Feed bin is positioned at the below of mixer, opens the mixer baiting valve, the compound feed bin that bleeds.Through vacuum drawn the compound in the feed bin is delivered in the mould in the cold press.After material to be mixed is full of mould, compound is suppressed, obtained core after the compression moulding with the pressure of 1.6 MPas.Core is put into dryer, and baking is 50 minutes under the temperature of 100 degree.To pack into through the core of baking and carry out seamless parcel in the non-woven bag, will be inserted in the aluminium foil bag of MULTILAYER COMPOSITE through the core of nonwoven parcel again, and send into vaccum-pumping equipment and be evacuated to 0.1 Pascal and seal.The extrudate density that obtains is 383kg/m
3, reach 0.0051W/mk through the test thermal conductivity coefficient.
The ventilative material that does not pass through powder is meant that air can see through, the material that powder cannot see through.In other embodiments, the ventilative material that does not pass through powder can also be the packing material that wool is processed.
In other embodiments, high barrier material can also be that one or both reach the material that above combination is composited in PE (polyethylene film), PET film (polyester film), nylon film, aluminizer and the glass fibre.
In other embodiments, compound is sent in the mould in the cold press, can also be adopted feeding of screw rod extruded type or the artificial mode that feeds intake in step (2).
Table 1 is in some embodiments; The kind and the mass ratio thereof of major ingredient, radiation barrier and fortifying fibre, used pressure in the step (3), step (4) used temperature of baking and duration; The vacuum that vacuumizes in the step (6), the density of the vacuum insulation panel of gained and thermal conductivity coefficient.Wherein the preparation method of the vacuum insulation panel of embodiment 4 ~ 10 is identical with embodiment 1, and the preparation method of the vacuum insulation panel of embodiment 11 ~ 15 is identical with embodiment 2, and the preparation method of the vacuum insulation panel of embodiment 16 ~ 20 is identical with embodiment 3.
Table 1
Above-described only is embodiments more of the present invention.For the person of ordinary skill of the art, under the prerequisite that does not break away from the invention design, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (10)
1. the preparation method of vacuum insulation panel comprises the steps:
The dioxide-containing silica that (1) will weigh up is in proportion inserted to stir in the mixing plant greater than 98% major ingredient, radiation barrier and fortifying fibre and is obtained compound;
(2) said compound is sent in the mould;
(3) the said compound in the said mould is pressed into core with the pressure of 0.4 ~ 2 MPa;
(4) place 100 ~ 300 degrees centigrade to toast 10 ~ 120 minutes said core;
(5) will put into material ventilative and that do not pass through powder through the said core that step (4) obtain earlier and carry out seamless parcel, the sack that places high barrier material to process the core behind the said parcel again obtains goods;
(6) the said goods of step (5) are vacuumized, seal.
2. the preparation method of vacuum insulation panel according to claim 1; Wherein before in said step (1); Place 94 ~ 105 degrees centigrade of difference heated bakings more than 5 minutes said major ingredient, said radiation barrier and said fortifying fibre, insert the feed bin of nitrogen protection again.
3. the preparation method of vacuum insulation panel according to claim 1; Wherein said step (1) said major ingredient, said radiation barrier and said fortifying fibre are inserted stir in the said mixing plant in, with 94 ~ 105 degrees centigrade the heating said mixing plants tank diameters.
4. the preparation method of vacuum insulation panel according to claim 1, the mode of wherein in said step (2) said compound being pumped with vacuum is sent in the said mould.
5. the preparation method of vacuum insulation panel according to claim 1, wherein said step (3) is pressed into core with the pressure of 0.8 ~ 1.6 MPa with the said compound in the said mould.
6. the preparation method of vacuum insulation panel according to claim 1, wherein said step (4) was toasted said core 40 ~ 100 minutes in 150 ~ 250 degrees centigrade.
7. the preparation method of vacuum insulation panel according to claim 1, wherein said step (6) is evacuated to 0.1 ~ 10 Pascal with the said goods that step (5) obtains.
8. according to the preparation method of each described vacuum insulation panel of claim 1 ~ 7, the mass ratio of wherein said major ingredient, said radiation barrier and said fortifying fibre is 50 ~ 100:5 ~ 25:1 ~ 10.
9. according to the preparation method of each described vacuum insulation panel of claim 1 ~ 7, wherein said major ingredient is that one or both reach above combination in aerosil powder, precipitated silica, SILICA FUME, rice hull ash, glass bead powder, flyash and the perlite powder.
10. according to the preparation method of each described vacuum insulation panel of claim 1 ~ 7, wherein said radiation barrier is that one or both reach above combination in carborundum, titanium white powder and the carbon black.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102373303A CN102729316A (en) | 2012-07-10 | 2012-07-10 | Preparation method of vacuum heat insulating plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102373303A CN102729316A (en) | 2012-07-10 | 2012-07-10 | Preparation method of vacuum heat insulating plate |
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| CN102729316A true CN102729316A (en) | 2012-10-17 |
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| CN2012102373303A Pending CN102729316A (en) | 2012-07-10 | 2012-07-10 | Preparation method of vacuum heat insulating plate |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103343580A (en) * | 2013-07-11 | 2013-10-09 | 陈秀凯 | Method for manufacturing vacuum heat-insulating plates by utilization of coal ash and rice hull ash |
| CN103422584A (en) * | 2013-08-21 | 2013-12-04 | 陈秀凯 | Method for manufacturing vacuum insulated heat-preservation board by utilizing breathable cotton sliver for heat sealing |
| WO2015039843A1 (en) * | 2013-09-18 | 2015-03-26 | Wacker Chemie Ag | Silicic acid mixtures and use thereof as insulation material |
| CN104556966A (en) * | 2015-02-04 | 2015-04-29 | 滁州银兴电气有限公司 | Preparation method of fumed silica and nanoscale carbon black composite material |
| WO2016050192A1 (en) * | 2014-09-29 | 2016-04-07 | 福建赛特新材股份有限公司 | Method for manufacturing vacuum insulation panel |
| WO2017005421A1 (en) * | 2015-07-03 | 2017-01-12 | Arcelik Anonim Sirketi | A vacuum insulation panel |
| CN110204300A (en) * | 2019-06-24 | 2019-09-06 | 江西晖能新材料有限公司 | Core material of vacuum heat-insulating plate and preparation method thereof and vacuum heat-insulating plate |
| CN114919248A (en) * | 2022-04-28 | 2022-08-19 | 苏州市君悦新材料科技股份有限公司 | Preparation method of vacuum heat insulation plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103343580A (en) * | 2013-07-11 | 2013-10-09 | 陈秀凯 | Method for manufacturing vacuum heat-insulating plates by utilization of coal ash and rice hull ash |
| CN103422584A (en) * | 2013-08-21 | 2013-12-04 | 陈秀凯 | Method for manufacturing vacuum insulated heat-preservation board by utilizing breathable cotton sliver for heat sealing |
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| WO2016050192A1 (en) * | 2014-09-29 | 2016-04-07 | 福建赛特新材股份有限公司 | Method for manufacturing vacuum insulation panel |
| CN104556966A (en) * | 2015-02-04 | 2015-04-29 | 滁州银兴电气有限公司 | Preparation method of fumed silica and nanoscale carbon black composite material |
| WO2017005421A1 (en) * | 2015-07-03 | 2017-01-12 | Arcelik Anonim Sirketi | A vacuum insulation panel |
| CN110204300A (en) * | 2019-06-24 | 2019-09-06 | 江西晖能新材料有限公司 | Core material of vacuum heat-insulating plate and preparation method thereof and vacuum heat-insulating plate |
| CN114919248A (en) * | 2022-04-28 | 2022-08-19 | 苏州市君悦新材料科技股份有限公司 | Preparation method of vacuum heat insulation plate |
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Owner name: WANG HAICHENG Effective date: 20120912 |
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Effective date of registration: 20120912 Address after: 330038 Jiangxi province Nanchang Honggutan WTO Road No. 168 Building 1 unit 18 room 1903 Applicant after: Yuan Jiangtao Applicant after: Wang Haicheng Address before: 330038 Jiangxi province Nanchang Honggutan WTO Road No. 168 Building 1 unit 18 room 1903 Applicant before: Yuan Jiangtao |
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Application publication date: 20121017 |