CN104747862B - VIP core material with glass fiber sheets and gas phase SiO2 - Google Patents
VIP core material with glass fiber sheets and gas phase SiO2 Download PDFInfo
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- CN104747862B CN104747862B CN201310739096.9A CN201310739096A CN104747862B CN 104747862 B CN104747862 B CN 104747862B CN 201310739096 A CN201310739096 A CN 201310739096A CN 104747862 B CN104747862 B CN 104747862B
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- gas phase
- vip
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- core material
- plate
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/02—Shape or form of insulating materials, with or without coverings integral with the insulating materials
- F16L59/028—Composition or method of fixing a thermally insulating material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
- B32B17/02—Layered products essentially comprising sheet glass, or glass, slag, or like fibres in the form of fibres or filaments
Abstract
The invention relates to a vacuum heat insulation board core material with a heat conduction coefficient ranging from 3.0 mW/(m K) to 4.0 mW/(m K) and with the service life not less than 30 years. The vacuum heat insulation board core material comprises a middle core material formed by a plurality of layers of laminated glass fiber sheets, and a gas phase SiO2 board is arranged on the upper end face and/or the lower end face of the middle core material in a covering manner; or the periphery of the middle core material is coated with a gas phase SiO2 powder layer; after the core material is made to VIP, due to mixed use of the gas phase SiO2 powder layer or a board and a glass fiber board, and the diameter of the gas phase SiO2 powder layer or the diameter of a gap in the board is in the nanoscale, surplus air or gradual seeping air in the VIP can be prevented from flowing in the thickness direction of the core material, so that heat conduction is avoided, that is, the isolation effect in the thickness direction is achieved. According to the core material, stability and VIP comprehensive performance of the VIP core material are conveniently kept, and the core material is mainly characterized in that after the SiO2 board is added, the integrality and mechanical strength of the VIP can be greatly improved, and the VIP is not prone to deforming.
Description
Technical field
The present invention relates to a kind of VIP(vacuum heat-insulating plate) core, the VIP applying this core and heat insulating decorative board, be specifically related to a kind of by glass sheet material and SiO2Bisque or SiO2The core material of vacuum heat insulation plate of plate laminated forming, it is applicable to the fields such as household electrical appliances insulation, Cold Chain Logistics, building heat preservation.
Background technology
Vacuum heat-insulating plate (i.e. VIP is the abbreviation of English Vacuum Insulation Panel) has applied in every field, and it meets customer requirement with energy-conservation, low-carbon (LC), environmental protection, the characteristic of safety.
In the service life of VIP, referring to that the gas slowly penetrated in VIP gradually increases, in plate, pressure thinks inefficacy time consistent with the external world.
For using glass fibre to make the VIP of core, being generally 10-15 its service life, heat conductivity is typically at 3.0mW/(m K) below；For using gas phase SiO2Making the VIP of core, its service life is generally 50-70, and heat conductivity is typically at 4.0-5.0mW/(m K) below；The VIP internal pressure requirement≤1Pa of glass core, and use gas phase SiO2The VIP internal pressure of core can meet requirement at below 100Pa.The advantage how combining the two, it is provided that the VIP plate that a kind of heat conductivity is relatively low, service life is longer, is the technical barrier that this area is to be solved.
Summary of the invention
The technical problem to be solved is to provide a kind of heat conductivity and is in 3.0-4.0mW/(m K) between, the VIP core no less than 30 years in the service life and preparation method thereof.
For solving above-mentioned technical problem, the invention provides a kind of core material of vacuum heat insulation plate, comprising: the middle core that multilayer laminated glass fibre sheet is constituted, upper surface and/or the lower surface of middle core are coated with gas phase SiO2Plate, or the periphery of described middle core is coated with gas phase SiO2Bisque.
After this core is made VIP, due to gas phase SiO2Bisque or plate are used in mixed way with glass mat, and gas phase SiO2Aperture diameter in bisque or plate is nanoscale, so can prevent the surplus air in VIP or the air that gradually penetrates into from conducting heat in the flowing of core thickness direction, i.e. play partition effect at thickness direction, be beneficial to keep the stability of the heat conductivity of VIP core and VIP combination property (mainly to add SiO2The globality of the VIP can being greatly improved after plate and mechanical strength, make VIP be unlikely to deform), make the heat conductivity of the VIP utilizing this core to make be in 3.0-4.0mW/(m K) between；Additionally, SiO2It is beneficial to absorption air and steam (i.e. can absorb the gas slowly penetrated), and then it is the most steady in a long-term to guarantee that the heat conductivity of VIP plate is maintained at lower value, and then make be no less than the service life of VIP 30 years, and gas phase SiO in VIP2Content is the highest, and its service life is the longest.
Alternatively, described middle core middle berth is provided with at least one of which gas phase SiO2Bisque or gas phase SiO2Plate.Gas phase SiO that at least one of which 1-15mm is thick is set between glass fibre sheet specifically between adjacent two layers glass fibre sheet or adjacent and glass mat2Bisque or gas phase SiO2Plate.Multi-layer vapor SiO2Bisque or plate can prevent the surplus air in VIP or the air that gradually penetrates into from conducting heat in the flowing of core thickness direction, i.e. play partition effect at thickness direction, improve heat-insulating property further.
Glass fibre sheet is the glass fibre sheet (i.e. chopped thread sheet material) using wet paper manufacturing method molding, or the glass mat (i.e. dry method glass cotton piece material) of employing dry method non-woven fabrics craft molding, or the sheet material (i.e. mixing glass sheet material) that glass fibre sheet is constituted with the lamination of glass mat.
Alternatively, the upper surface of described middle core is coated with gas phase SiO2Bisque or gas phase SiO2Plate, lower surface and the surrounding side wrap of middle core have superfine glass fiber cotton piece material；Or, core entirety superfine glass fiber cotton piece material in centre is coated with；Fibre diameter in described superfine glass fiber cotton piece material is 1-4um, a length of 1-5mm.
Described superfine glass fiber cotton piece material uses wet paper manufacturing method molding or dry method non-woven fabrics craft molding, gas phase SiO2Plate uses gas phase SiO2, SiC powder compressing after stirring with some inorfils.
Apply the VIP of above-mentioned core material of vacuum heat insulation plate, described core to be located in an encapsulating film bag, seal after evacuation.
A kind of heat insulating decorative board applying above-mentioned VIP, is characterized in: connecting in the both sides of this VIP has three-ply board or wood-plastic board.This heat insulating decorative board, can be applicable to the decorative heat preservation of indoor and outdoor wall；Wherein, can arbitrarily spray coated paint, beneficially individual decoration on three-ply board.
The technique effect of the present invention:
(1), this core is made VIP after, due to gas phase SiO2Bisque or plate are used in mixed way with glass mat, and gas phase SiO2Aperture diameter in bisque or plate is nanoscale, so can prevent the surplus air in VIP or the air that gradually penetrates into from conducting heat in the flowing of core thickness direction, i.e. play partition effect at thickness direction, be beneficial to keep the stability of the heat conductivity of VIP core and VIP combination property (mainly to add SiO2The globality of the VIP can being greatly improved after plate and mechanical strength, make VIP be unlikely to deform in use or deform less), make the heat conductivity of the VIP utilizing this core to make be in 3.0-4.0mW/(m K) between；Additionally, SiO2It is beneficial to absorption air and steam, and then it is the most steady in a long-term to guarantee that the heat conductivity of VIP plate is maintained at lower value, and then make to be no less than the service life of VIP 30 years (being much better than the VIP using glass fibre to make core), and gas phase SiO in VIP2Content is the highest, and its service life is the longest；Additionally, relative to using merely SiO2The central layer that plate is made, by gas phase SiO2Bisque or plate are used in mixed way with glass mat, can very low cost, reason is gas phase SiO2Cost be generally greater than glass fibre.
(2), in the composite core material of the present invention, upper surface and/or the lower surface of middle core are coated with gas phase SiO2Plate, or the periphery of described middle core is coated with gas phase SiO2Bisque.Gas phase SiO2Bisque or plate are made up of powder body material, there is not sharp object, are difficult to poke VIP film bag, so avoiding the risk that VIP film bag is punctured on the whole.Also superfine glass fiber cotton piece material can be set in the side of middle core, or core entirety superfine glass fiber cotton piece material in centre is coated with, the fiber own diameter cotton due to superfine glass fiber is little, length is short, fiber is softer, it is not easy to puncture film bag (i.e. avoid a diameter of 6-13um of the prior art, the glass fibre of a length of 4-20mm easily punctures the situation of aluminizer bag), so applicable aluminizer and foil laminated film produce；This avoids chopped silk core or dry method Chopped Strand Mat core is large-area contacts with film bag, effectively prevent the risk of fiber puncture film bag.The core of the present invention can be suitable for polytype film material and produce VIP, and breaches the restriction that thick diameter core can only use foil laminated film to produce, and the VIP plate being actually needed produced by composite core material film material of can arbitrarily arranging in pairs or groups；
(3), chopped silk core of the prior art and dry method Chopped Strand Mat core are the most fluffy, in order to promote chopped silk and dry method Chopped Strand Mat core performance, binding agent can be reduced in process of production as far as possible, so chopped silk core and dry method Chopped Strand Mat core are easily caused central layer breakage in process of production, chopped silk drops, it is difficult to pack and affects sealing bag bag mouth sealing, the phenomenons such as finished surface out-of-flatness, and use the superfine glass fiber bale of cotton to wrap up in the middle of the bottom surface of middle core or overall parcel and can effectively solve these problems after core, and SiO can be solved2Bisque or SiO2The unfavorable factor that sheet material leakage powder brings, it is ensured that the reliability that bag mouth seals.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the VIP core in embodiment 1, and it uses gas phase SiO2Core in the middle of bisque or plate cladding, middle core includes at least one of which gas phase SiO2Bisque or plate；
Fig. 2 is the cross-sectional view of the VIP core in embodiment 2, and it uses core in the middle of superfine glass fiber cotton piece material integral coating, middle core to include at least one of which gas phase SiO2Bisque or plate；
Fig. 3 is the cross-sectional view of the VIP in embodiment 2, its bottom surface using core in the middle of superfine glass fiber cotton piece material integral coating and surrounding side, uses SiO2Bisque or plate cover the end face of middle core, and middle core includes at least one of which gas phase SiO2Bisque or plate.
Detailed description of the invention
Below in conjunction with instantiation, the present invention is described in further detail.
Embodiment 1
Such as Fig. 1, the core material of vacuum heat insulation plate of this example includes by the glass fibre sheet 2(i.e. chopped thread sheet material using wet paper manufacturing method molding of 10-30 layer), or use the glass mat (i.e. dry method glass cotton piece material) of dry method non-woven fabrics craft molding, or the sheet material (i.e. mixing glass sheet material) of the lamination composition of glass fibre sheet and glass mat and 2-10 layer gas phase SiO2Bisque or the middle core of the alternately laminated composition of plate 1；It has been covered each by gas phase SiO in these upper and lower both sides of middle core2Bisque or gas phase SiO2Plate.
Described gas phase SiO2Plate uses gas phase SiO2, SiC powder compressing after stirring with some inorfils.
Constitute a diameter of 4-20um of the glass fibre of described glass mat, a length of 4-15mm.
Described glass fibre sheet uses the glass chopped silk molding that a diameter of 6-13um, a length of 4-20mm fiber elongation method produce.
Glass fibre layer distributed, major part in described glass fibre sheet are parallel with end face, glass fibre random distribution in isoplanar, the thickness of this sheet material is uniform, to reduce gap the beneficially evacuation of adjacent fiber, simultaneously because heat conducts heat along the length direction of glass fibre mostly, therefore by its major part glass fibre distribution parallel with the end face of this glass mat, can prevent heat from transmitting at thickness direction.
The distribution parallel with the end face of this glass mat of most of glass fibre in described glass mat, to reduce gap the beneficially evacuation of adjacent fiber；Additionally, due to heat conducts heat along the length direction of glass fibre mostly, therefore by its major part glass fibre distribution parallel with the end face of this glass mat, can prevent heat from transmitting at thickness direction.
The heat conductivity of the VIP that the core referred to by this embodiment is made is 3.0-4.0mW/m.k, and service life is no less than 30 years.
And use the VIP internal pressure of the present embodiment core at more than 1Pa, do not affect the performance of VIP, gas phase SiO2Content is the highest, and the permissible value of VIP internal pressure is the highest, typically can meet requirement at below 20-50Pa, and design parameter can be obtained by experiment.
Embodiment 2
Such as Fig. 2, the core material of vacuum heat insulation plate of this example includes by the glass fibre sheet 2(i.e. chopped silk core using wet paper manufacturing method molding of multilamellar) and 2-5 layer gas phase SiO2Bisque or the middle core of the alternately laminated composition of plate 1；Being wrapped up by superfine glass fiber cotton piece material 3 in this middle core entirety, the fibre diameter in superfine glass fiber cotton piece material 3 is 1-4um, a length of 1-5mm, and the heat conductivity of the VIP being made up of this core is 3.0-4.0mW/m.k, and service life is no less than 30 years.
As a kind of variable embodiment, described middle core is located in the bag being made up of above-mentioned superfine glass fiber cotton piece material, or above-mentioned superfine glass fiber cotton piece material wraps up the edge of described middle core.
Embodiment 3
Such as Fig. 3, the core material of vacuum heat insulation plate of this example includes by the glass fibre sheet 2(i.e. chopped silk core using wet paper manufacturing method molding of 10-30 layer) and 2-10 layer gas phase SiO2Bisque or the middle core of the alternately laminated composition of plate 1；It has been covered each by SiO in the both sides up and down of this middle core2Plate 1 and superfine glass fiber cotton piece material 3, this superfine glass fiber cotton piece material 3 is coated with four sides of middle core simultaneously；Fibre diameter in described superfine glass fiber cotton piece material 3 is 1-4um, a length of 1-5mm, and the heat conductivity of the vacuum heat-insulating plate being made up of this core is 3.0-4.0mW/m.k, and service life is no less than 30 years.
Described glass fibre sheet is by using a diameter of 6-13um, and the glass chopped silk that a length of 4-20mm fiber elongation method produces is through wet paper manufacturing method molding.
Claims (6)
1. a core material of vacuum heat insulation plate, it is characterized in that including: the middle core that multilayer laminated glass fibre sheet is constituted, the upper surface of this middle core and/or lower surface are coated with gas phase sio2 plate, or the periphery of described middle core is coated with gas phase sio2 bisque or gas phase sio2 plate；Described gas phase sio2 plate uses gas phase sio2, SiC powder compressing after stirring with inorfil.
2. core material of vacuum heat insulation plate as claimed in claim 1, it is characterised in that: described middle core middle berth is provided with at least one of which gas phase sio2 bisque or gas phase sio2 plate.
3. a core material of vacuum heat insulation plate, it is characterized in that including: the middle core that multilayer laminated glass fibre sheet is constituted, the upper surface of this middle core is coated with gas phase sio2 bisque or gas phase sio2 plate, and lower surface and the surrounding side wrap of middle core have superfine glass fiber cotton piece material；
Or, core entirety superfine glass fiber cotton piece material in centre is coated with.
4. core material of vacuum heat insulation plate as claimed in claim 3, it is characterised in that: described middle core middle berth is provided with at least one of which gas phase sio2 bisque or gas phase sio2 plate.
5. apply the VIP that the core described in the claims 1 or 3 is made for one kind.
6. the heat insulating decorative board of the VIP applied described in the claims 5, it is characterised in that: connect in the both sides of this VIP and have three-ply board or wood-plastic board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310739096.9A CN104747862B (en) | 2013-12-27 | 2013-12-27 | VIP core material with glass fiber sheets and gas phase SiO2 |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310739096.9A CN104747862B (en) | 2013-12-27 | 2013-12-27 | VIP core material with glass fiber sheets and gas phase SiO2 |
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| Publication Number | Publication Date |
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| CN104747862A CN104747862A (en) | 2015-07-01 |
| CN104747862B true CN104747862B (en) | 2017-01-11 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106926529A (en) * | 2015-12-30 | 2017-07-07 | 福建赛特新材股份有限公司 | Core and its production method and vacuum heat-insulating plate that a kind of vacuum heat-insulating plate is used |
| CN106926520A (en) * | 2015-12-30 | 2017-07-07 | 福建赛特新材股份有限公司 | Inside core and its production method and vacuum heat-insulating plate that vacuum heat-insulating plate is used |
| CN107387944B (en) * | 2017-06-28 | 2020-01-10 | 高彦峰 | Environment-friendly vacuum insulation board |
| CN108383488A (en) * | 2018-04-01 | 2018-08-10 | 中鸿纳米纤维技术丹阳有限公司 | A kind of silica aerogel reinforcing fiber based on fiberglass fiber |
| CN112092471B (en) * | 2020-09-22 | 2022-09-02 | 南通远顺耐纤有限公司 | Staggered overlapped VIP glass fiber core material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102116402A (en) * | 2011-01-04 | 2011-07-06 | 合肥美的荣事达电冰箱有限公司 | Vacuum thermal insulation component and manufacturing method thereof, as well as refrigeration device |
| CN201944491U (en) * | 2011-03-10 | 2011-08-24 | 苏州维艾普新材料有限公司 | High performance vacuum insulated panel with compound core material |
| 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 |
| CN103162061B (en) * | 2011-12-14 | 2016-06-08 | 上海赐业新能源材料科技有限公司 | The vacuum heat-insulating plate of a kind of aerosil and making method thereof |
| CN203336147U (en) * | 2013-05-10 | 2013-12-11 | 常州山由帝武节能新材料制造有限公司 | Vacuum heat insulation panel core material and vacuum heat insulation panel |
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| C06 | Publication | ||
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: CHANGZHOU SANYOU D + VIPS INSULATING MATERIALS MAN Free format text: FORMER OWNER: CHANGZHOU SANYOU D + VIPS NEW ENERGY SAVING MATERIALS MANUFACTURING CO., LTD. Effective date: 20150824 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20150824 Address after: 213000 Jiangsu city of Changzhou province Wujin fruit Road Economic Development Zone No. 10 Applicant after: CHANGZHOU SANYOU DIOR INSULATION MATERIALS MFG CO., LTD. Address before: 213000, No. 10, fruit Road, Wujin Economic Development Zone, Jiangsu, Changzhou Applicant before: Changzhou Sanyou D & VIPS New Energy-saving Materials Mfg. Co., Ltd. |
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Address after: 213000 Jiangsu city of Changzhou province Wujin fruit Road Economic Development Zone No. 10 Applicant after: JIANGSU SANYOU DIOR ENERGY-SAVING NEW MATERIALS CO., LTD. Address before: 213000 Jiangsu city of Changzhou province Wujin fruit Road Economic Development Zone No. 10 Applicant before: CHANGZHOU SANYOU DIOR INSULATION MATERIALS MFG CO., LTD. |
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