CN108084474A - A kind of nanometer barrier film and preparation method thereof - Google Patents
A kind of nanometer barrier film and preparation method thereof Download PDFInfo
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- 230000004888 barrier function Effects 0.000 title claims abstract description 90
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 38
- 239000004411 aluminium Substances 0.000 claims abstract description 36
- 238000007747 plating Methods 0.000 claims abstract description 31
- 210000002469 basement membrane Anatomy 0.000 claims abstract description 24
- 230000037452 priming Effects 0.000 claims abstract description 19
- 239000007787 solid Substances 0.000 claims abstract description 13
- NIXOWILDQLNWCW-UHFFFAOYSA-M acrylate group Chemical group C(C=C)(=O)[O-] NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 claims abstract description 9
- 239000011527 polyurethane coating Substances 0.000 claims abstract description 9
- 239000011248 coating agent Substances 0.000 claims description 33
- 238000000576 coating method Methods 0.000 claims description 33
- 239000002105 nanoparticle Substances 0.000 claims description 15
- 238000005269 aluminizing Methods 0.000 claims description 10
- -1 glycol ester Chemical class 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 7
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 7
- 238000007738 vacuum evaporation Methods 0.000 claims description 7
- 235000013339 cereals Nutrition 0.000 claims description 6
- 241000209094 Oryza Species 0.000 claims description 4
- 235000007164 Oryza sativa Nutrition 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 230000002457 bidirectional effect Effects 0.000 claims description 4
- 239000005025 cast polypropylene Substances 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 235000009566 rice Nutrition 0.000 claims description 4
- 125000005396 acrylic acid ester group Chemical group 0.000 claims description 3
- 241000790917 Dioxys <bee> Species 0.000 claims 1
- 229910003978 SiClx Inorganic materials 0.000 claims 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims 1
- KUCOHFSKRZZVRO-UHFFFAOYSA-N terephthalaldehyde Chemical compound O=CC1=CC=C(C=O)C=C1 KUCOHFSKRZZVRO-UHFFFAOYSA-N 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 25
- 239000000853 adhesive Substances 0.000 abstract description 10
- 230000001070 adhesive effect Effects 0.000 abstract description 10
- 239000010408 film Substances 0.000 description 47
- 239000010410 layer Substances 0.000 description 30
- 239000000463 material Substances 0.000 description 28
- 238000012946 outsourcing Methods 0.000 description 18
- 230000000694 effects Effects 0.000 description 14
- 239000007789 gas Substances 0.000 description 14
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 6
- 210000004379 membrane Anatomy 0.000 description 6
- 239000012528 membrane Substances 0.000 description 6
- 239000002131 composite material Substances 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 239000005030 aluminium foil Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 239000011104 metalized film Substances 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 239000001307 helium Substances 0.000 description 3
- 229910052734 helium Inorganic materials 0.000 description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 238000001465 metallisation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000004260 weight control Methods 0.000 description 2
- 229910002012 Aerosil® Inorganic materials 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012793 heat-sealing layer Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 150000002927 oxygen compounds Chemical class 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/04—Coating
- C08J7/042—Coating with two or more layers, where at least one layer of a composition contains a polymer binder
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/08—Oxides
- C23C14/081—Oxides of aluminium, magnesium or beryllium
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/10—Glass or silica
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/24—Vacuum evaporation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/12—Polypropene
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- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
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Abstract
The present invention provides a kind of nanometer barrier film and preparation method thereof, the nanometer barrier film is followed successively by aluminium plating basement membrane, priming coat, barrier coat and nano-deposit from top to bottom；The priming coat is acrylate or polyurethane coating, and solid content is 30~40%；The barrier coat is acrylate or polyurethane coating, and solid content is 50~70%.The present invention also provides the preparation methods of nanometer barrier film.The present invention prepares gained nanometer barrier film thickness and is not significantly increased, and has the preferable aluminium layer adhesive force of aluminium plating basement membrane layer, the superior gas barrier properties that block water, while the durability of film is good, and service life is longer.
Description
Technical field
The present invention relates to a kind of nanometer barrier films and preparation method thereof, belong to vacuum heat-insulating plate technical field.
Background technology
Vacuum heat-insulating plate (abbreviation VIP) is a kind of novel high-efficiency and energy-saving heat-insulation and heat-preservation material that the whole world rapidly develops in recent years
Material, is mainly made of outsourcing material, core and getter.Core is support vacuum cavity, the packing material of low thermal conductivity, is led to
Often there are flame cotton, rock wool, glass chopped silk, aerosil etc.；Outsourcing material is that air-isolation and water enter vacuum
Intracavitary, the material for ensureing intracavitary vacuum degree；Getter be in absorbing cavity residual gas or by film penetrate into intracavitary gas and water,
Maintain the material of intracavitary vacuum degree.
It wherein vacuumizes core and a small amount of getter are closed and seal, to reduce cross-ventilation and moisture movement generates
Heat transfer.Outsourcing material makes entire heat-insulating shield be in low heat conduction state for ensureing and maintain internal vacuum, outsourcing material
The gas barrier properties that block water directly influence the energy-saving effect and service life of thermal insulation material.
It is well known that improving the heat-insulating property of vacuum heat-insulating plate, that is, the thermal conductivity factor of vacuum heat-insulating plate is reduced, it is necessary to from true
Big form of the three of empty heat-insulating shield is set about, and reduces the Solid thermal conductivity of core, is promoted the ability of getter and is promoted outsourcing material
Block water gas barrier properties and reduce outsourcing material heat-sealing after border leakage heat.The service life of vacuum heat-insulating plate will usually reach several
The even more than ten years in year, the shadow of the oxygen for penetrating outsourcing material and vapor to Thermal Insulation Effect of Vacuum Insulated Panel is accumulated during use
Sound just becomes clear day by day, then is the Long-Term Properties for ensuring vacuum heat-insulating plate, the gas barrier properties that block water of outsourcing material are just carried
Go out more stringent requirement.
Outsourcing material is compound for several thin-film materials, and usual structure is：Outer layer is protective layer, and interlayer is barrier layer,
Inner layer is hot sealing layer, and wherein barrier layer is one or more layers polyethylene terephthalate film of aluminizing (VMPET) or metallization
Film (such as aluminium foil) or the MULTILAYER COMPOSITE of VMPET and metallized film；Interlayer is carried out compound by adhesive.It rises and mainly blocks water
Choke effect is interlayer barrier layer.
Currently on the market, the thickness of VMPET films is 11-13 μm, and water vapor transmittance is≤5.0g/m224h, and helium is saturating
Rate is crossed as 5.0 × 10-6PaL/scm2.Naturally, using two layers, three layers, even more multilayer VMPET films carry out compound, right
The choke that blocks water of outsourcing material has a degree of promotion, but the problem of existing simultaneously is, it is compound after outsourcing material is partially thick, side
Boundary's leakage heat is apparent.In addition, the preferable aluminium foil of barrier property (or other metallized films) compactness is good, the thin generally 7-9 μ of thickness
M, but with higher thermal conductivity, the thermal conductivity factor of metal is 1000~1200 times of general plastics thermal conductivity factor, then metallizes
After film use is in outsourcing material, caused by border heat bridge effect it is more prominent apparent.
For vacuum heat-insulating plate, after fluffy core is coated by outsourcing material and vacuumized heat-sealing, core is by compression body
Product reduces, then causing the larger i.e. overlap of the distance between hot edge seal and core, (it is extra to be generated compared with compressed core
Outsourcing material part), when actually using vacuum heat-insulating plate, it usually needs reused after extra overlap is carried out flanging.By
Using after metallized film in the increase of outsourcing material thickness or outsourcing material, first outsourcing material, which is not easy progress flanging, makes
With or flanging after bending part stress great Yi puncture；Second flanging part thickness is multiplied, leakage heat in border caused by flanging
It steeply rises, influences the service life of vacuum heat-preserving insulation product.
Meanwhile although VMPET initial stages have certain vapor barrier properties that block water, there are aluminium coated adhesive force for this kind of film
Difference, aluminize easy transfer the problems such as, particularly through follow-up accelerated ageing tracking test, it is found that there are peel strengths for VMPET composite membranes
The problems such as low, gas barrier properties that block water decline, durability is poor.
So gas barrier properties that block water of promotion single thin film, endurance quality, while without introducing big border heat bridge effect
It is imperative.
The content of the invention
Blocking water the technical problem to be solved in the present invention is to provide one kind, gas barrier properties are superior, durability is good, border heat bridge effect
It should low, nanometer barrier film that service life is longer and its manufacturing method.
In order to solve the technical issues of above-mentioned, the present invention provides a kind of nanometer barrier films, are followed successively by from top to bottom
Aluminium plating basement membrane, priming coat, barrier coat and nano-deposit；The priming coat is acrylate or polyurethane coating, and solid content is
30~40%；The barrier coat is acrylate or polyurethane coating, and solid content is 50~70%.
In a preferred embodiment, inorganic matter nano-particle, proportion 5-9% are further included in the barrier coat.
In a preferred embodiment, the inorganic matter nano-particle is SiOx nanoparticle, and grain size is 10~50nm.
In a preferred embodiment, the aluminium plating basement membrane is polyethylene terephthalate film (VMPET) of aluminizing, aluminizes
One kind in cast polypropylene film (VMCPP), bidirectional stretching polypropylene film (VMBOPP).
In a preferred embodiment, the primer thickness is 0.3~0.5 μm.
In a preferred embodiment, the barrier coat thickness is 0.8~1.2 μm.
In a preferred embodiment, the coating is one kind in aluminium coated, applying silicon oxide layer or plating alchlor layer.
In a preferred embodiment, the thickness of coating is
In order to solve the technical issues of above-mentioned, the present invention also provides a kind of manufacturing method of nanometer barrier film, including
Following steps：
1) one layer of bottom coating is coated in the face of aluminizing of aluminium plating basement membrane, coating weight is 0.5~1.0g/m2, and at drying
Reason；
2) continue to be coated with one layer of barrier coat coating in base coating surface, coating weight is 2.0~5.0g/m2, and at drying
Reason；
3) vacuum evaporation is carried out on barrier coat surface, thickness of coating is
In a preferred embodiment, the inorganic matter nano-particle first by proportion for 5-9% is further included in the step 2)
It evenly spreads in barrier coat coating, is coated in base coating surface, the inorganic matter nano-particle is Si oxide nanometer
Particle, grain size are 10~50nm.
Nanometer barrier film provided by the invention is the single-layer membrane structure of broad sense, is that processing is optimized to aluminium plating basement membrane,
By aluminize face painting bottom coating and the barrier coat successively in aluminium plating basement membrane, aluminium plating basement membrane surface soundness, barrier energy are promoted
Power and aluminium coated adhesive force, then carry out vacuum evaporation nanometer grade thickness and have the nano-deposit of certain choke ability that blocks water, nanometer resistance
While the thickness of film does not substantially increase, the gas barrier properties that block water are obviously improved, and edge heat bridge effect is weak, durability
It is good, long lifespan.
Description of the drawings
Fig. 1 is the cross-sectional view of 1 nanometer barrier film of the embodiment of the present invention；
Fig. 2 is the cross-sectional view of 2 nanometer barrier film of the embodiment of the present invention.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Embodiment 1
With reference to figure 1, a kind of nanometer barrier film is followed successively by aluminium plating basement membrane 1, priming coat 2 from top to bottom, and barrier coat 3 is received
Rice coating 4.
The aluminium plating basement membrane 1 is preferably polyethylene terephthalate film (VMPET) of aluminizing, and thickness is 12 μm, also may be used
Think one kind in 25 μm of cast polypropylene films of aluminizing (VMCPP) or 20 μm of bidirectional stretching polypropylene films (VMBOPP).Plating
Aluminum-based film 1 is not limited to above-mentioned three kinds, and suitable plastic basis material surface evaporation metal, thermal conductivity factor is low, possesses certain resistance
Water resistance gas ability can be with.Aluminium plating basement membrane 1 has been the very ripe film with the choke ability that centainly blocks water, in vacuum insulation
Structure in the traditional outsourcing material composite film in plate field as main obstructing capacity occurs.But 1 this kind of film of aluminium plating basement membrane
There are aluminium coated poor adhesive force, aluminize easy transfer the problems such as, especially after long-term use, this problem is more prominent.
The present embodiment continues to be coated with the priming coat 2 in the aluminium plated surface of the aluminium plating basement membrane 1, and priming coat 2 is acrylic acid
Ester or polyurethane coating, solid content are 30~40%, and the primer thickness is 0.3~0.5 μm, and effect is to reduce the plating
Aluminum-based film 1 is aluminized the roughness on face surface, improves the adhesive force of the barrier coat 3, while the aluminium layer of aluminium plating basement membrane 1 is adhered to
Also have a certain upgrade effect.
The barrier coat 3 is coated on 2 surface of priming coat, the barrier coat 3 applies for acrylate or polyurethane
Material, solid content are 50~70%, and the barrier coat thickness is 0.8~1.2 μm.It has preferably barrier energy to steam infiltration
Power, while good booster action is played to the adhesive force of coating 4.
Continue vacuum evaporation nano-deposit 4 on 3 surface of barrier coat.4 thickness of nano-deposit isPreferred thickness is 45nm, 50nm or 55nm.Using vacuum evaporation mode, the nano-deposit 4 is aluminium coated,
One kind in applying silicon oxide layer or plating alchlor layer, certainly, nano-deposit 4 is not limited to these types, other have one
Surely the nano metal for the choke ability that blocks water, metal oxide or nonmetallic also possible.The nano-deposit 4 and aluminium plating basement membrane
1, priming coat 2, barrier coat 3 forms the individual layer nanometer barrier membrane structure of broad sense, it is impossible to by mechanical stripping, the nanometer barrier
Film thickness increases only 1-2 μm compared with aluminium plating basement membrane 1, but the gas barrier properties that block water obtain very big optimization and promoted.
Nanometer barrier film thickness provided by the invention is not significantly increased, in subsequent and protective layer, heat-sealing layer multi-layer
After film is compound, it will not substantially increase the thickness of composite membrane, then avoid the problem of composite membrane flanging causes.Meanwhile nanometer is plated
Layer is that one layer tens nanometers of metal layer or metal oxide layer or nonmetal oxide layer is deposited on surface, nanometer barrier film
It can be greatly reduced to a certain extent with alternative metals film (such as aluminium foil), material dosage, and it is thin to overcome metallization
The shortcomings of film-strength is low, folding resistance is poor, and border fuel factor is apparent.Comprehensive analysis, nanometer barrier film resistance provided in this embodiment
Water resistance gas superior performance, durability are good, border heat bridge effect is low, service life is longer.
For example, nanometer barrier film is prepared：Aluminium plating basement membrane 1 is VMPET, and thickness is 12 μm；Priming coat 2 is acrylic acid
Ester paint, solid content 35%, solvent are ethyl acetate, and 2 thickness of gained priming coat is 0.4 μm；Barrier coat 3 applies for polyurethane
Material, solid content 60%, solvent are pure water, and 3 thickness of gained barrier coat is 1.1 μm；Nano-deposit 4 is aluminium coated, and thickness isThe nanometer barrier film and the helium transmitance of VMPET films and moisture-vapor transmission index contrast being prepared are seen below
Table one, it can be seen that the gas barrier properties that block water of nanometer barrier film are promoted with obvious effects.
1 nanometer barrier film of table and VMPET films single-layer membrane structure helium transmitance and moisture-vapor transmission index contrast
Embodiment 2
With reference to figure 2, the present embodiment and embodiment 1 difference lies in：Inorganic matter nanometer is further included in the barrier coat 3 '
Particle, proportion 5-9%, the inorganic matter nano-particle are SiOx nanoparticle, and grain size is 10~50nm.Because barrier applies
3 ' coating liquid mobility of layer and surface tension, after drying process, coating surface microstate is not smooth, by receiving
Rice corpuscles dispersed filler reduces its roughness to coated surface is applied, the adhesive force of coating when improving vacuum evaporation.
The present embodiment furthermore presents the preparation method of above-mentioned nanometer barrier film, comprises the following steps：
1) one layer of 2 coating of priming coat is coated in the face of aluminizing of aluminium plating basement membrane 1, coating weight is 0.5~1.0g/m2, and dry
Processing.
The aluminium plating basement membrane 1 is preferably polyethylene terephthalate film (VMPET) of aluminizing, and thickness is 12 μm, also may be used
Think one kind in 25 μm of cast polypropylene films of aluminizing (VMCPP) or 20 μm of bidirectional stretching polypropylene films (VMBOPP).Institute
Priming coat 2 is stated as acrylate or polyurethane coating, solid content 30~40%, with ethyl acetate be diluted to working concentration 10%~
15%, coating weight control is in 0.5~1.0g/m2, 60~70m/min of coating speed, the drying temperature is 50~70 DEG C, gained
Primer thickness is 0.3~0.5 μm.The effect of the priming coat 2 is to reduce the roughness on 1 surface of aluminium plating basement membrane, is improved
The adhesive force of the barrier coat 3, while the effect that also has a certain upgrade to the aluminium layer attachment of aluminium plating basement membrane 1.
2) continue to be coated with one layer of 3 ' coating of barrier coat on 2 surface of priming coat, coating weight is 2.0~5.0g/m2, and it is dry
Processing.
The barrier coat 3 ' is acrylate or polyurethane coating.The solid content of acrylate or polyurethane for 50~
70%, 25%~35% is diluted to pure water, coating weight control is in 2.0~5.0g/m2, coating speed 60~70m/min is described
Drying temperature is 60~100 DEG C, and gained barrier coat thickness is 0.8~1.2 μm.The barrier coat 3 has more steam infiltration
Good obstructing capacity, while good booster action is played to the adhesive force of coating 4.
3) carry out vacuum evaporation on 3 ' surface of barrier coat and obtain nano-deposit, thickness isPreferred thickness is
45nm, 50nm, 55nm.Nano-deposit is preferably aluminium coated.Other have the nano metal for the choke ability that centainly blocks water, metal oxygen
Compound is nonmetallic also possible, such as applying silicon oxide layer or plating alchlor layer.
Method made above further includes in the step 2) and inorganic matter nano-particle first is evenly spread to barrier coat
In coating, be coated on 2 surface of priming coat, the inorganic matter nano-particle is SiOx nanoparticle, grain size for 10~
50nm。
Nanometer barrier film made from above-mentioned preparation method is single thin film structure, it is impossible to by mechanical stripping.The present embodiment
Preparation method is that one layer tens nanometers of nano-deposit is deposited in substrate surface, and dosage greatly reduces, will not be thin in nanometer barrier
Film introduces big border fuel factor when bending, while overcomes aluminium foil (or other metallized films) intensity low, unyielding
Shortcoming.
The nanometer barrier film that the present embodiment is prepared blocks water, and gas barrier properties are superior, durability is good, lower boundary heat bridge effect
Should, service life it is longer.
The above described is only a preferred embodiment of the present invention, be not intended to limit the scope of the present invention,
The present embodiment is intended to the idea and operation principle for illustrating the invention, therefore every technical spirit according to the invention is to above example
The subtle modifications, equivalent variations and modifications of made any shape and structure, in the range of still falling within technical solution of the present invention.
Claims (10)
1. a kind of nanometer barrier film, it is characterised in that：Aluminium plating basement membrane, priming coat, barrier coat are followed successively by from top to bottom and are received
Rice coating；The priming coat is acrylate or polyurethane coating, and solid content is 30~40%；The barrier coat is acrylic acid
Ester or polyurethane coating, solid content are 50~70%.
2. nanometer barrier film according to claim 1, which is characterized in that further include inorganic matter in the barrier coat and receive
Rice corpuscles, proportion 5-9%.
3. nanometer barrier film according to claim 2, which is characterized in that the inorganic matter nano-particle is Si oxide
Nano-particle, grain size are 10~50nm.
4. nanometer barrier film according to claim 1, which is characterized in that the aluminium plating basement membrane is the poly- terephthaldehyde that aluminizes
In sour glycol ester film (VMPET), cast polypropylene film of aluminizing (VMCPP), bidirectional stretching polypropylene film (VMBOPP)
It is a kind of.
5. nanometer barrier film according to claim 1, which is characterized in that the primer thickness is 0.3~0.5 μm.
6. nanometer barrier film according to claim 1, which is characterized in that the barrier coat thickness is 0.8~1.2 μ
m。
7. nanometer barrier film according to claim 1, which is characterized in that the nano-deposit is aluminium coated, plating dioxy
One kind in SiClx layer or plating alchlor layer.
8. nanometer barrier film according to claim 1, which is characterized in that the nano-deposit thickness is
9. the preparation method of a kind of nanometer barrier film as described in claim 1-8 is any, it is characterised in that including walking as follows
Suddenly：
1) one layer of bottom coating is coated in the face of aluminizing of aluminium plating basement membrane, coating weight is 0.5~1.0g/m2, and drying process；
2) one layer of barrier coat coating is coated in base coating surface, coating weight is 2.0~5.0g/m2, and drying process；
3) vacuum evaporation is carried out on barrier coat surface, nano-deposit thickness is
10. the preparation method of nanometer barrier film according to claim 9, which is characterized in that in the step 2) also
Including first evenly spreading to the inorganic matter nano-particle that proportion is 5-9% in barrier coat coating, it is coated in priming coat table
Face, the inorganic matter nano-particle are SiOx nanoparticle, and grain size is 10~50nm.
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Effective date of registration: 20180820 Address after: 364000 No. 5 Industrial Road two, Liancheng County Industrial Park, Longyan, Fujian Applicant after: FUJIAN FEIERMU TECHNOLOGY Co.,Ltd. Address before: 361000 13 building, No. 1300 Jimei Avenue, Jimei District, Xiamen, Fujian. Applicant before: XIAMEN FILM VACUUM TECHNOLOGY CO.,LTD. |
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Application publication date: 20180529 |