CN107387944A - A kind of environment-friendly type vacuum insulation panel - Google Patents
A kind of environment-friendly type vacuum insulation panel Download PDFInfo
- Publication number
- CN107387944A CN107387944A CN201710505291.3A CN201710505291A CN107387944A CN 107387944 A CN107387944 A CN 107387944A CN 201710505291 A CN201710505291 A CN 201710505291A CN 107387944 A CN107387944 A CN 107387944A
- Authority
- CN
- China
- Prior art keywords
- insulation panel
- vacuum insulation
- diatomite
- glass fibre
- reflection
- 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.)
- Granted
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 68
- 239000011162 core material Substances 0.000 claims abstract description 49
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000003365 glass fiber Substances 0.000 claims abstract description 39
- 229960000892 attapulgite Drugs 0.000 claims abstract description 25
- 229910052625 palygorskite Inorganic materials 0.000 claims abstract description 25
- 230000004888 barrier function Effects 0.000 claims abstract description 14
- 239000011230 binding agent Substances 0.000 claims abstract description 10
- 239000011241 protective layer Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 21
- 239000011152 fibreglass Substances 0.000 claims description 15
- 239000010410 layer Substances 0.000 claims description 14
- 239000004411 aluminium Substances 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 239000004575 stone Substances 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical group [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052709 silver Inorganic materials 0.000 claims description 3
- 239000004332 silver Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000004806 packaging method and process Methods 0.000 abstract description 4
- 150000001875 compounds Chemical group 0.000 abstract description 2
- 230000007423 decrease Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 9
- 239000002994 raw material Substances 0.000 description 9
- 238000012546 transfer Methods 0.000 description 8
- 239000000843 powder Substances 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000003507 refrigerant Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 239000007799 cork Substances 0.000 description 5
- 229920000742 Cotton Polymers 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 229920000647 polyepoxide Polymers 0.000 description 4
- -1 polypropylene Polymers 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 229910002012 Aerosil® Inorganic materials 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000005538 encapsulation Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000012774 insulation material Substances 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 238000011068 loading method Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- 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
- F16L59/029—Shape or form of insulating materials, with or without coverings integral with the insulating materials layered
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
-
- 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
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/266—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by an apertured layer, the apertures going through the whole thickness of the layer, e.g. expanded metal, perforated layer, slit layer regular cells B32B3/12
-
- 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
- B32B33/00—Layered products characterised by particular properties or particular surface features, e.g. particular surface coatings; Layered products designed for particular purposes not covered by another single class
-
- 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
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- 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
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
-
- 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
- B32B2250/00—Layers arrangement
- B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
-
- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
-
- 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
- B32B2255/00—Coating on the layer surface
- B32B2255/20—Inorganic coating
- B32B2255/205—Metallic coating
-
- 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
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
-
- 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
- B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/304—Insulating
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Thermal Insulation (AREA)
Abstract
The present invention relates to a kind of environment-friendly type vacuum insulation panel, including the insulated core material positioned at inner side, the reflection-type choke barrier film positioned at outside, and the protective layer between insulated core material and reflection-type choke barrier film；The glass fibre of the insulated core material including 40~95wt%, 2~40wt% diatomite, 2~40wt% attapulgites and 1~5wt% binding agent.The present invention can avoid the problem of packaging bag is destroyed to cause vacuum to decline using diatomite, attapulgite and glass fibre compound core plate, moreover it is possible to simplification of flowsheet, reduce the production cost of core.
Description
Technical field
The present invention relates to a kind of environment-friendly type vacuum insulation panel and preparation method thereof, belong to heat-barrier material field.
Background technology
Vacuum insulation panel (Vacuum thermal insulation, abbreviation VIP) is one kind in vacuum thermal insulating material,
It is to be combined by filling core and vacuum protection top layer, because of the polyurethane material of its heat-insulating property much beyond traditions, extensively
It is general to be applied to Aero-Space, the industry such as household electrical appliances and building.Because one side vacuum insulation panel can be effectively prevented from pair of air
Heat transfer caused by stream, on the other hand the extremely low core of its thermal conductivity for using largely prevent the progress of heat transfer,
Therefore the thermal conductivity factor of VIP plates can be greatly lowered, less than 0.035w/ (mk).
The core material of vacuum heat insulation plate sold on the market uses porous media material mostly at present, as glass fibre, aeroge,
The materials such as powdered silica, any core respectively have its advantage and disadvantage.Secondly, in heat-insulation core plate manufacturing process, it is necessary to
A certain amount of drier or getter are added, to remove the gas and moisture that are not yet eliminated in Obstruct membrane and core plate, keeps phase
To higher vacuum, so as to improve the service life of vacuum heat-insulating plate.
For vacuum insulation panel core material, it is necessary to possess following four characteristic：Core is under high vacuum negative pressure state,
There is supporting construction to prevent vacuum heat-insulating plate from shrinking, caving in.Secondly, its structure design must be reduced as far as hot biography
Lead.Then, core plate must possess sufficient amount of open-celled structure, gas is discharged under negative pressure state with most fast speed.
Finally, material must sufficiently stable property, under vacuum or ultralow vacuum degree condition, do not discharge gas or discharge gas less as far as possible.
For improving thermal insulation board heat-insulating property, three kinds of modes of heat transfer must all account for, wherein working as environment
With incubator internal difference in temperature more than 30 DEG C, the influence of radiant heat transfer can not just be ignored temperature.Guarantor has been used especially for this
For the incubator of warm core, the ratio occupied by it is even more than more than the 35% of overall heat transfer.However, existing patent,
This point is little affected by attention for the design of warming plate.CN105058541A discloses a kind of cork powder Quito hole composite wood
Material and its preparation method and application, belongs to heat-barrier material field, using wanting raw material based on cork powder and aerosil, including
Following steps choose certain granules cork powder not of uniform size, cork powder is carried out by microwave method for preprocessing reconstruction with
Aerosil carries out being mixed to get composite granule, and application one minute certain time of one ton of pressure can obtain cork powder Quito
Hole composite material, but it is aerosil that its shortcoming, which is core used, because the material 99% is made up of gas,
Collapsed as usage time extension occurs, volume significantly reduces, and heat-insulating property is deteriorated.CN105757400A discloses a kind of glass
The vacuum insulation panel of glass fiber base, its core are mainly (to use the chopped silk piece of wet moulding in the silk core that is chopped from a kind of
The lamination of material) or a kind of glass mat of dry method Chopped Strand Mat core or at the same time the chopped thread sheet material containing wet moulding with
The both sides up and down of the core of dry method Chopped Strand Mat set superfine glass fiber cotton piece, but its shortcoming, which is superfine glass fiber cotton piece, still suffers from one
A little glass fibres puncture vacuum bag the possibility for causing vacuum to reduce.
The content of the invention
In view of the above-mentioned problems, the invention provides a kind of environment-friendly type vacuum insulation panel, including insulated core material positioned at inner side,
Reflection-type choke barrier film positioned at outside, and the protective layer between insulated core material and reflection-type choke barrier film；
The glass fibre of the insulated core material including 40~95wt%, 2~40wt% diatomite, 2~40wt% attapulgites, with
And 1~5wt% binding agent.
Glass fibre, 2~40wt% diatomite, 2~40wt% attapulgite conduct of the present invention from 40~95wt%
The material of insulated core material, on the one hand from main material of the low glass fibre of thermal conductivity as insulated core material, it can be greatly improved
Heat insulation effect, another aspect addition trade waste diatomite, concave convex rod can increase the plasticity of core, facilitate the compacting of core
Shaping, and glass fibre can be effectively prevent and puncture the problem of packaging bag causes vacuum to decline, while realize discarded object again
Utilize, reduce production cost.In addition, during the powder combined fiberglass cotton such as diatomite and attapulgite, glass fibre cotton table
The hole in face, the order of magnitude of pore size is suitable with the mean free path of air molecule, therefore can greatly reduce in material
Heat transfer.
It is preferred that the insulated core material includes fiberglass insulation being made and positioned at described by the glass fibre
The mixed layer made of diatomite and attapulgite of fiberglass insulation upper and lower surface.It is that is, of the invention by diatom
Soil and attapulgite are compressed on the both sides of fiberglass insulation, more effectively glass fibre can be prevented to puncture packaging bag
Problem.
It is preferred that the thickness of the fiberglass insulation is 5~30mm, the thickness of the mixed layer is 2~20mm.
It is preferred that the mass ratio of diatomite and attapulgite is (1~20) in the mixed layer：(1~20).
It is preferred that the average diameter of glass fibre is 10 μm in the fiberglass insulation, draw ratio is more than 500：1.
Also, it is preferred that the size of the diatomite and attapulgite in 300 mesh between 800 mesh sieves.Present invention selection
Grain is used as protective layer for the diatomite and concave convex rod of the particle diameter of 300~800 mesh, and the beneficial effect that film bag is punctured is avoided with realization
Fruit.
It is preferred that the reflection-type gas-barrier separated membrane material is that two kinds of Material claddings of PE and CPP form and surface is coated with metal
Film, the reflection-type choke barrier film integral thickness are 0.01~1mm.The present invention uses this flexibility of high reflection type metal coating
Barrier film replaces the mode of traditional aluminium sheet, effectively prevents radiation of heat and conduction, caused by significantly limit radiant heat transfer
The phenomenon that heat-insulating property declines, or even can be made into flexibly thermal insulation material.And choke barrier film only lateral surface has crossed metal film, by
It is PE and CPP in the inner side of the choke barrier film of upper and lower both sides, thermal conductance is extremely low, is not in be caused using aluminium sheet caused by heat bridge
Bad phenomenon.
It is preferred that the metallic film is one kind in silver, aluminium, nickel and the copper and its alloy, thickness for 50~
500nm。
It is preferred that the protective layer is more than 80% for the porosity of fiber filter bag, aperture is 0.1~50 μm, by means of
This, be able to will not be extracted ensureing glass fibre, and without prejudice to the vacuumize process of vacuum insulation panel preparation process so that institute
The overall vacuum degree stated in reflection-type choke barrier film is less than 0.3MPa.
Brief description of the drawings
Fig. 1 is the structural representation of environment-friendly type vacuum insulation panel；
Fig. 2 is the guarantor formed in six folder surface layers for insert the environment-friendly type vacuum insulation panel of the present invention double-deck polypropylene plastic box
The structural representation of incubator；
Fig. 3 be embodiment 1,2, comparative example 1 prepare double incubators cold insulation test temperature profile；
Fig. 4 be embodiment 1,2, comparative example 1 prepare double incubators heat insulation test temperature profile.
Embodiment
The present invention is further illustrated below by way of following embodiments, it should be appreciated that following embodiments are merely to illustrate this
Invention, is not intended to limit the present invention.
In the present invention, environment-friendly type vacuum insulation panel (vacuum insulation panel) is made up of insulated core material and reflection-type choke barrier film.
The insulated core material is the block being made up of glass fibre, diatomite, attapulgite.Described vacuum insulation panel also includes preventing
The protective layer that core powder is extracted.
Above-mentioned heat insulation block (insulated core material) can be by a variety of insulation materials (glass fibre and diatomite, concave convex rod lapicide
Industry discarded object) formed with certain proportion compacting.Counted using the gross mass of insulated core material as 100%, the quality hundred of the glass fibre
It is 40%~95wt%, preferably 55~80wt% to divide content；The respective percentage composition of diatomite and attapulgite be 2~
40wt%, preferably 10~20wt%.Glass fibre and diatomite, attapulgite are suppressed after can mixing, it is preferable that scheme is
Diatomite, attapulgite are mainly distributed both sides above and below glass fibre (more preferably surrounding), then suppressed.Insulated core material
Integral thickness can be 5~30mm, the thickness of heat-insulation layer that wherein glass fibre is formed can be 3~20mm, by diatomite and recessed
The thickness of the mixed layer of convex rod stone composition can be 2~20mm.In mixed layer, the mass ratio of diatomite and attapulgite can be (1~
20)：(1~20).The insulated core material also includes accounting for below gross mass 5wt%, preferred 1~5wt% binding agent, for by glass
Glass fiber, diatomite, attapulgite are bonded together to form block structure.In the present invention, the diatomite and attapulgite
Size can be selected in 300 mesh between 800 mesh sieves.The glass fiber average diameter is about 10 μm, and draw ratio is more than 500：1.
Epoxy resin can be selected in binding agent.
Protective layer can be bag like construction, such as fiber filter bag, and this is a kind of non-woven fabrics, and bag is thick to be less than 100 μm, and material is
Fiber Materials, its porosity are more than 80%, and aperture is about 0.1~50 μm.The filter bag is close to insulated core material, and is wrapped up
Wherein.
Also have outside protective layer one layer of holding vacuum with reflex choke barrier film (its be preferably formed as it is packed, i.e.,
Reflection-type choke diaphragm bag), the surface of the choke diaphragm bag is coated with metallic film (for example, silver, aluminium, nickel, copper or its alloy
Deng), to improve heat radiation reflection efficiency, reflection-type choke barrier film integral thickness can be 0.01~1mm, the metal being coated with thereon
The thickness of film can be 50~500nm.Its heat radiation reflection efficiency is more than 90%.Vacuum in the reflection-type choke diaphragm bag
Degree is less than 0.3MPa.The thermal conductivity factor of whole vacuum insulation panel is less than 0.02W/ (mk).The reflection-type choke diaphragm bag material
Matter can be that two kinds of Material claddings of PE and CPP form.
Referring to Fig. 1, it shows an exemplary construction schematic diagram of environment-friendly type vacuum insulation panel of the present invention, wrapped from outside to inside
Include, silver-plated reflection Obstruct membrane 1, fiber filter film 2, heat insulation core material 3,4 form, wherein 3 be mainly diatomite and attapulgite
Mixed layer, 4 mainly fiberglass insulation.
As the example of the preparation method of an environment-friendly type vacuum insulation panel, including：By glass fibre, diatomite and bumps
Rod stone weighs by a certain percentage, first takes glass fibre as center material, by diatomite and attapulgite to wrap up glass fibre
Mode laid, by binding agent by glass fibre, diatomite and attapulgite bond, compacting (pressing pressure can be 20
~80MPa) bulk material is formed, as insulated core material (core)；Core is loaded into porosity and is more than 80%, aperture is about 0.1
In~50 μm of fiber filter bag, sealing；By the fiber filter equipped with core it is packed enter the reflection choke diaphragm bag aluminized of surface
In, vacuumize and encapsulate to obtain vacuum insulation panel.Now the overall vacuum degree of vacuum heat-insulation intralamellar part is less than 0.3MPa.
The present invention can avoid packaging bag is destroyed from causing vacuum using diatomite, attapulgite and glass fibre compound core plate
The problem of degree declines, moreover it is possible to simplification of flowsheet, reduce the production cost of core.The present invention uses high reflection type metal coating generation
For the mode of traditional aluminium sheet, radiant heat transfer is effectively prevented, it might even be possible to make flexibly thermal insulation material.
Embodiment is enumerated further below to describe the present invention in detail.It will similarly be understood that following examples are served only for this
Invention is further described, it is impossible to is interpreted as limiting the scope of the invention, those skilled in the art is according to this hair
Some nonessential modifications and adaptations that bright the above is made belong to protection scope of the present invention.Following examples are specific
Technological parameter etc. is also only an example in OK range, i.e. those skilled in the art can be done properly by this paper explanation
In the range of select, and do not really want to be defined in the concrete numerical value of hereafter example.In following embodiments, if without specified otherwise, it is described
The average diameter of glass fibre is 10 μm in fiberglass insulation, and draw ratio is more than 500, the diatomite and attapulgite
Size is in 300 mesh between 800 mesh sieves.
Embodiment 1
A kind of environment-friendly type vacuum insulation panel and preparation method thereof：
First 58wt% glass fibre is mixed with 20wt% diatomite, 20wt% attapulgite, ensures diatomite and recessed
Convex rod stone is laid on the outside of glass fibre；
Added into above-mentioned raw materials and account for gross mass 2wt% binding agent (epoxy resin) and be bonded together raw material；
The raw material being bonded together is pressed under the conditions of 50MPa the block that thickness is 30mm, wherein fiberglass insulation
Thickness is 20mm, and the thickness for being distributed in the diatomite of the fiberglass insulation both sides and the mixed layer of attapulgite is 10mm；
The block suppressed is put into fiber filter bag (porosity is more than 80%, and aperture is 0.1~50 μm), then block is put into
(aluminium film has been crossed on the reflection choke diaphragm bag surface to reflection-type choke diaphragm bag, reflects the thickness 0.25mm of choke diaphragm bag, metal
Film thickness is 120nm) in；
Vacuumize, its vacuum is obtained vacuum insulation panel in below 0.3MPa, encapsulation.
By six of the vacuum insulation panel prepared insertion 35.4cm*26.0cm*28.8cm double-deck polypropylene plastic box
Incubator is formed in the interlayer of face (referring to Fig. 2) (size see the table below)：
。
6kg refrigerant is put into (loading about 1/3) incubator, ensures container sealing, ambient temperature 23
Degree Celsius, test refrigerant, heat source surface temperature change over time (respectively referring to example 1 in Fig. 3,4 shown in curve).
Embodiment 2
A kind of environment-friendly type vacuum insulation panel and preparation method thereof：
First 78wt% glass fibre is mixed with 10wt% diatomite, 10wt% attapulgite, ensures diatomite and recessed
Convex rod stone is laid on the outside of glass fibre；
Added into above-mentioned raw materials and account for gross mass 2wt% binding agent (epoxy resin) and be bonded together raw material；
The raw material being bonded together is pressed under the conditions of 50MPa the block that thickness is 30mm, wherein fiberglass insulation
Thickness is 20mm, and the thickness for being distributed in the diatomite of the fiberglass insulation both sides and the mixed layer of attapulgite is 10mm；
The block suppressed is put into fiber filter bag (porosity is more than 80%, and aperture is 0.1~50 μm), then block is put into
(reflection choke diaphragm bag surface Dou Du has aluminium film to reflection-type choke diaphragm bag, reflects the thickness 0.25mm of choke diaphragm bag, gold
Category film thickness is 120nm) in；
Vacuumize, its vacuum is obtained vacuum insulation panel in below 0.3MPa, encapsulation.
By six of the vacuum insulation panel prepared insertion 35.4cm*26.0cm*28.8cm double-deck polypropylene plastic box
Incubator is formed in the interlayer of face (referring to Fig. 2) (size see the table below)：
。
6kg refrigerant is put into (loading about 1/3) incubator, ensures container sealing, ambient temperature 23
Degree Celsius, test refrigerant, heat source surface temperature change over time (respectively referring to example 2 in Fig. 3,4 shown in curve).
Comparative example 1
A kind of environment-friendly type vacuum insulation panel and preparation method thereof：
Glass fibre is taken, raw material is bonded together by the binding agent (epoxy resin) for adding 2wt%；
The raw material being bonded together is pressed into the block that thickness is 30mm under the conditions of 50MPa；
The block suppressed is put into fiber filter bag (porosity is more than 80%, and aperture is 0.1~50 μm), then block is put into
(reflection choke diaphragm bag surface Dou Du has aluminium film to reflection-type choke diaphragm bag, reflects the thickness 0.25mm of choke diaphragm bag, gold
Category film thickness is 120nm) in；
Vacuumize, its vacuum is obtained vacuum insulation panel in below 0.3MPa, encapsulation.
By six of the vacuum insulation panel prepared insertion 35.4cm*26.0cm*28.8cm double-deck polypropylene plastic box
Incubator is formed in the interlayer of face (referring to Fig. 2) (size see the table below)：
。
6kg refrigerant is put into (loading about 1/3) incubator, ensures container sealing, ambient temperature 23
Degree Celsius, test refrigerant, heat source surface temperature change over time (respectively referring to example 3 in Fig. 3,4 shown in curve).
Referring to Fig. 3,4, it shows embodiment 1 (embodiment 1), embodiment 2 (embodiment 2), comparative example (embodiment
3) the heat insulation test effect of the incubator prepared：The low-temperature insulation effect of embodiment 2 is best as can be known from Fig. 3, and embodiment 1 is low
Warm heat insulation effect takes second place, and the low-temperature insulation effect of embodiment 3 is worst.The soak effect of embodiment 2 is most as can be known from Fig. 4
Good, the soak effect of embodiment 1 is taken second place, and the soak effect of embodiment 3 is worst.Suitable diatomite, attapulgite
Content also have certain influence to the heat insulation effect of core.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and be carried out, and it is not intended to limit the scope of the present invention, all according to the present invention
The equivalent change or modification that Spirit Essence is made, it should all cover within the scope of the present invention.
Claims (10)
1. a kind of vacuum insulation panel, it is characterised in that including the insulated core material positioned at inner side, the reflection-type gas-barrier separated positioned at outside
Film, and the protective layer between insulated core material and reflection-type choke barrier film；
The insulated core material includes 40~95wt% glass fibre, 2~40wt% diatomite, 2~40wt% attapulgites and 1
~5wt% binding agent.
2. vacuum insulation panel according to claim 1, it is characterised in that the insulated core material is included by the glass fibre
Manufactured fiberglass insulation and made of stones by diatomite and concave convex rod positioned at the fiberglass insulation upper and lower surface
Into mixed layer.
3. vacuum insulation panel according to claim 2, it is characterised in that the thickness of the fiberglass insulation be 5~
30mm, the thickness of the mixed layer is 2~20mm.
4. the vacuum insulation panel according to Claims 2 or 3, it is characterised in that diatomite and concave convex rod in the mixed layer
The mass ratio of stone is（1~20）：（1~20）.
5. according to the vacuum insulation panel any one of claim 1-4, it is characterised in that the insulated core material include 40~
95wt% glass fibre, 2~40wt% diatomite, 2~40wt% attapulgites and 1~5wt% binding agent.
6. according to the vacuum insulation panel any one of claim 1-5, it is characterised in that being averaged for the glass fibre is straight
Footpath is 10 μm, and draw ratio is more than 500：1.
7. according to the vacuum insulation panel any one of claim 1-6, it is characterised in that the diatomite and attapulgite
Size in 300 mesh between 800 mesh sieves.
8. according to the vacuum insulation panel any one of claim 1-7, it is characterised in that the reflection-type gas-barrier separated membrane material
Matter is that two kinds of Material claddings of PE and CPP form and surface is coated with metallic film, and the integral thickness of the reflection-type choke barrier film is
0.01~1mm.
9. vacuum insulation panel according to claim 8, it is characterised in that the metallic film is silver, aluminium, nickel and the copper
And its one kind in alloy, thickness are 50~500 nm.
10. according to the vacuum insulation panel any one of claim 1-9, it is characterised in that the protective layer is fiber mistake
Filter bag, its porosity are more than 80%, and aperture is 0.1~50 μm.
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| CN112979222A (en) * | 2019-12-18 | 2021-06-18 | 南京航空航天大学 | Attapulgite composite glass fiber core material and preparation method thereof |
| CN112979174A (en) * | 2019-12-18 | 2021-06-18 | 南京航空航天大学 | Attapulgite nanorod crystal bundle modified glass fiber core material and preparation method thereof |
| CN113321447A (en) * | 2021-06-10 | 2021-08-31 | 富思特新材料科技发展股份有限公司 | Vacuum heat insulation plate and preparation method and application thereof |
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| CN107387944B (en) | 2020-01-10 |
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