CN204431837U - Composite gas Obstruct membrane - Google Patents
Composite gas Obstruct membrane Download PDFInfo
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- CN204431837U CN204431837U CN201420846448.0U CN201420846448U CN204431837U CN 204431837 U CN204431837 U CN 204431837U CN 201420846448 U CN201420846448 U CN 201420846448U CN 204431837 U CN204431837 U CN 204431837U
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Abstract
The utility model discloses a kind of gas barrier film, be followed successively by basement membrane, gas barrier functional layer, bonding coat and diaphragm; Described basement membrane and diaphragm are polymer film; Described gas barrier functional layer is one deck or two-layer or multi-layer graphene film or graphene film and the superposing of nano level metal film.Graphene composite structure provided by the utility model can be used for the seal protection of gas, liquid and solid, and the gas of this graphene composite structure, liquid and solid leakage rate can reduce greatly relative to polymeric seal film and metal sealing film; Also can be used for polymeric membrane heat conduction aspect, Graphene has excellent thermal conductance, so this graphene composite structure that provides of utility model is compared with the polymeric membrane of not graphene-containing, thermal conductivity can improve greatly.
Description
Technical field
The utility model relates to a kind of composite gas Obstruct membrane.
Background technology
Polymeric membrane as a kind of gas barrier film, can stop oxygen, steam etc. owing to forming silica, aluminium oxide, magnesia etc. on surface effectively, is therefore widely used in the rotten packaging preventing food, industrial goods and pharmaceuticals etc.In addition, also can gas etc. owing to can effectively stop, also can be used for the electronic devices such as sealed solar energy battery, liquid crystal display cells, organic EL element.But there is grain boundary defects between oxide particle, along with the increase of time, some gas or liquid can be revealed, do not have the effect of strict sealing, because there is a lot of hole in macromolecular material, molecule can pass from hole.The employing of metal sealing film can improve sealing effectiveness, but sealing effectiveness is still undesirable.People select to arrange aluminium foil on basement membrane, can obtain stable oxygen, water vapor barrier property, but poor for the barrier of the less hydrogen of molecular weight gas, helium.What people developed in recent years has the Obstruct membrane formed by polyvinylidene chloride (PVDC) or ethylene-vinyl alcohol copolymer (EVOH), also effectively oxygen can be stopped, but the former contains chlorine, have pollution to environment, the barrier of the latter is larger with ambient influnence.The heat conductivility of common polymeric membrane is very poor, and the macromolecule heat conduction material on general industry is all boron nitride by conductive force, aluminium oxide powder is composited as filler, and complex manufacturing process, thermal conductivity is relatively low.
Utility model content
The purpose of this utility model is to provide a kind of good airproof performance, prepares simple composite gas Obstruct membrane.
The technical scheme realizing the utility model first object is a kind of composite gas Obstruct membrane, is followed successively by basement membrane, gas barrier functional layer, bonding coat and diaphragm; Described basement membrane is polymer film, such as PET film or PE film, and thickness is 10 μm ~ 250 μm; Described bonding coat is sticking solid-state glue, as: OCA optical cement or double faced adhesive tape, thickness is 2 μm ~ 250 μm; Described diaphragm is polymer film, such as PET film or PE film, and thickness is 10 μm ~ 250 μm; Described gas barrier functional layer is one deck or two-layer or multi-layer graphene film or Graphene and the superposing of nano level metal film.
Have employed technique scheme, the utility model has following beneficial effect: (1) graphene composite structure provided by the utility model can be used for the seal protection of gas, liquid and solid, and the gas of this graphene composite structure, liquid and solid leakage rate can reduce greatly relative to polymeric seal film and metal sealing film; Also can be used for polymeric membrane heat conduction aspect, Graphene has excellent thermal conductance, so this graphene composite structure that provides of utility model is compared with the polymeric membrane of not graphene-containing, thermal conductivity can improve greatly.
(2) the utility model provides the organization plan of multiple composite gas Obstruct membrane, comprise adopt graphene film preparation and obtain and graphene powder prepare and obtain, comprise metal film and not containing metal film, all take full advantage of excellent sealing performance and the superelevation thermal conductance of Graphene, best in quality, choice is large.
Accompanying drawing explanation
In order to make content of the present utility model more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail, wherein
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the second structural representation of the present utility model.
Attached number in the figure is:
Basement membrane 1, gas barrier functional layer 2, graphene film 21, metal film 22, bonding coat 3, diaphragm 4.
Detailed description of the invention
(embodiment 1)
The preparation method of a kind of composite gas Obstruct membrane of the present embodiment, comprises the following steps:
Step one: prepare basement membrane 1, the growing substrate of graphene-containing film 21, the diaphragm 4 containing bonding coat 3; Basement membrane 1 is PET film or PE film, and thickness is 10 μm ~ 250 μm; Described diaphragm 4 is PET film or PE film, and thickness is 10 μm ~ 250 μm; The kind of bonding coat 3 is OCA optical cement or double faced adhesive tape, and the raw material of bonding coat 3 are the combination of one or more of organic silicon rubber, acrylic type resin and unsaturated polyester (UP), polyurethane, epoxy resin etc., the thickness of bonding coat 32 μm ~ 250 μm; The method obtaining the growing substrate of graphene-containing film 21 is: a kind of surface-treated Copper Foil in chemical polishing, electrochemical polish, machine glazed finish is put into airtight chemical meteorology deposition stove; Air in cvd furnace is drained only, is filled with 10-200sccm hydrogen and 100-1000sccm argon gas, make the pressure in cvd furnace remain on normal pressure; Heating deposition stove, to 900-1050 DEG C, keeps 5-40min at this temperature; Pass into the hydrocarbon of 1-20sccm, keep 5-30min; Close hydrocarbon and hydrogen, only logical argon gas, stop heating simultaneously, make cvd furnace cool to room temperature with the furnace; Take out the growing substrate of graphene film 21; In the present embodiment, the number of plies of Graphene is 3 ~ 8 layers.
Step 2: the growing substrate of graphene-containing film 2 and the diaphragm 4 containing bonding coat 3 are adopted the method compound pasted; Then the one in chemical stripping or electrochemical stripping method is adopted to remove growing substrate; Obtain the composite construction of graphene film 21+ bonding coat 3+ diaphragm 4;
Step 3: composite construction step 2 obtained and basement membrane 1 adopt the method compound pasted.
The structure of the composite gas Obstruct membrane obtained by the method for the present embodiment as shown in Figure 1.
(embodiment 2)
The method of the present embodiment and the difference of embodiment 1 are the nano level metal film 21 that gas barrier functional layer 2 also comprises one deck and adopts vacuum evaporation or sputter coating or pulse laser sediment method to cover.This structural representation as shown in Figure 2.
(embodiment 3)
The present embodiment is another kind of scheme, and graphene film adopts graphene powder to obtain.Concrete steps are:
Step one: prepare basement membrane 1 and diaphragm 4; Basement membrane 1 is PET film or PE film, and thickness is 10 μm ~ 250 μm.
Step 2: form graphene film 2 on basement membrane 1; After graphene powder and carbon black are mixed by a certain percentage, be dissolved in deionized water or organic solution, select add or do not add adhesive; Graphene powder solution is coated on basement membrane 1 by the one in infusion process, knife coating, spraying process, roll coating process, spin-coating method, rolling method, flow coat method, ink-jet method, print process, casting filming therapy, stick coating method, woodburytype method, dry in air or baking oven, form one deck graphene film 2
Step 3: roll extrusion pastes the diaphragm 4 containing gluing layer 3 on graphene film 2.
This structure as shown in Figure 1.
Gas barrier functional layer 2 can also comprise the nano level metal film 21 that one deck adopts vacuum evaporation or sputter coating or pulse laser sediment method to cover, and obtains the composite gas layer barrier film constructions shown in Fig. 2.
(embodiment 4)
The structure of the present embodiment is identical with embodiment 1, and the composite gas Obstruct membrane obtained as shown in Figure 1; Based on the graphene film that graphene film adopts Low Pressure Chemical Vapor Deposition to obtain, transfer obtains multi-layer graphene film.Following four kinds of methods can be adopted specifically:
The first: 2.1 employing chemical vapour deposition techniques under low pressure obtain the growing substrate containing graphene film 21;
2.2 have the growing substrate of graphene film 21 to be covered on Thermal release adhesive tape by long;
2.3 remove growing substrate;
Thermal release tape sticker containing graphene film 21 is layed onto on basement membrane 1 by 2.4;
Thermal release adhesive tape discharges by 2.5 at the temperature of 90-125 DEG C, completes ground floor graphene film 21 from Thermal release adhesive tape to the transfer of basement membrane 1;
Growth has the growing substrate of graphene film 21 to be covered on Thermal release adhesive tape by 2.6;
2.7 remove growing substrate;
Thermal release tape sticker containing graphene film 21 is layed onto on the graphene film 21 of step 2.5 by 2.8;
Thermal release adhesive tape discharges by 2.9 at the temperature of 90-125 DEG C, completes second layer Graphene rete 21 from Thermal release adhesive tape to the transfer of ground floor graphene film 21;
2.10 repeat 2.6-2.9 step, complete n-th layer graphene layer from growing substrate to the transfer n of the (n-1)th layer graphene layer be natural number, n >=1; Obtain the composite construction of gas barrier functional layer 2 and basement membrane 1;
In step 3, the diaphragm 4 containing bonding coat 3 is fitted in gas barrier functional layer 2.
The second: 2.1 employing chemical vapour deposition techniques under low pressure obtain the growing substrate containing graphene film 21;
2.2 have the growing substrate of graphene film 21 to be covered on Thermal release adhesive tape by long;
2.3 remove growing substrate;
2.4 by long have the growing substrate of Graphene rete 21 to be covered in turn have on the Thermal release adhesive tape of one deck graphene film 21, remove growing substrate;
2.5 repeat step 2.4, complete the transfer of n layer (n is natural number, n >=1) Graphene to Thermal release adhesive tape;
2.6 have the Thermal release tape sticker of n layer graphene film to be layed onto on basement membrane 1 by turning;
Thermal release adhesive tape discharges by 2.7 at the temperature of 90-125 DEG C, completes n layer graphene to the transfer on basement membrane 1; Obtain the composite construction of gas barrier functional layer 2 and basement membrane 1;
In step 3, the diaphragm 4 containing bonding coat 3 is pasted in gas barrier functional layer 2.
The third: 2.1 employing chemical vapour deposition techniques under low pressure obtain the growing substrate containing graphene film 21;
2.2 are coated with a layer binder on basement membrane 1;
2.3 have the growing substrate of graphene film 21 to be covered on basement membrane 1 by long;
2.4 remove growing substrate;
2.5 have the growing substrate of graphene film 21 to be covered on Thermal release adhesive tape by long, remove growing substrate;
Thermal release tape sticker containing graphene film is layed onto on the basement membrane 1 of graphene-containing by 2.6;
Thermal release adhesive tape discharges by 2.7 at the temperature of 90-125 DEG C, completes second layer Graphene rete from Thermal release adhesive tape to the transfer of ground floor graphene film;
2.8 repeat step 2.5-2.7, complete the transfer of n-th layer graphene layer from growing substrate to the (n-1)th layer graphene layer (n is natural number, n >=1); Obtain the composite construction of gas barrier functional layer 2 and basement membrane 1;
In step 3, the diaphragm 4 containing bonding coat 3 is pasted in gas barrier functional layer 2.
4th kind: 2.1 employing chemical vapour deposition techniques under low pressure obtain the growing substrate containing graphene film 21;
2.2 by the long diaphragm 4 having the growing substrate of graphene film 21 to paste containing bonding coat 3;
2.3 remove growing substrate;
2.4 by long have the growing substrate of graphene film 21 to be covered in turn have one deck graphene film 21 and containing on the diaphragm 4 of bonding coat 3, remove growing substrate;
2.5 repeat step 2.4, complete the transfer of n (n is natural number, n >=1) layer graphene to the diaphragm 4 containing bonding coat 3; Obtain the composite construction of gas barrier functional layer 2 and the diaphragm 4 containing bonding coat 3;
In step 3, gas barrier functional layer 2 is pasted on basement membrane 1.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (2)
1. a composite gas Obstruct membrane, is characterized in that: be followed successively by basement membrane (1), gas barrier functional layer (2), bonding coat (3) and diaphragm (4); Described basement membrane (1) and diaphragm (4) are polymer film; Described gas barrier functional layer (2) is one deck or two-layer or multi-layer graphene film (21); Described basement membrane (1) thickness is 10 μm ~ 250 μm; Described bonding coat (3) thickness is 2 μm ~ 250 μm; Described diaphragm (4) thickness is 10 μm ~ 250 μm.
2. a kind of composite gas Obstruct membrane according to claim 1, is characterized in that: described gas barrier functional layer (2) also comprises the nano level metal film (22) covered between basement membrane (1) and graphene film (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420846448.0U CN204431837U (en) | 2014-12-26 | 2014-12-26 | Composite gas Obstruct membrane |
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| CN201420846448.0U CN204431837U (en) | 2014-12-26 | 2014-12-26 | Composite gas Obstruct membrane |
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| CN204431837U true CN204431837U (en) | 2015-07-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104553115A (en) * | 2014-12-26 | 2015-04-29 | 常州二维碳素科技有限公司 | Composite gas barrier film and preparation method thereof |
| CN105620713A (en) * | 2016-01-26 | 2016-06-01 | 无锡格菲电子薄膜科技有限公司 | Skin provided with surface helium gas blocking layer and preparation method of skin |
-
2014
- 2014-12-26 CN CN201420846448.0U patent/CN204431837U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104553115A (en) * | 2014-12-26 | 2015-04-29 | 常州二维碳素科技有限公司 | Composite gas barrier film and preparation method thereof |
| CN105620713A (en) * | 2016-01-26 | 2016-06-01 | 无锡格菲电子薄膜科技有限公司 | Skin provided with surface helium gas blocking layer and preparation method of skin |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHANGZHOU 2D CARBON TECHNOLOGY CO., LTD. Free format text: FORMER NAME: 2D CARBON (CHANGZHOU) TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 213000 No. 6 Xiangyun Road, Wujin Economic Development Zone, Jiangsu, Changzhou Patentee after: 2D CARBON (CHANGZHOU) TECH INC., LTD. Address before: 213000 No. 6 Xiangyun Road, Wujin Economic Development Zone, Jiangsu, Changzhou Patentee before: 2D Carbon (Changzhou) Tech Co., Ltd. |