CN206264471U - A kind of graphene composite film - Google Patents
A kind of graphene composite film Download PDFInfo
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- CN206264471U CN206264471U CN201621350040.XU CN201621350040U CN206264471U CN 206264471 U CN206264471 U CN 206264471U CN 201621350040 U CN201621350040 U CN 201621350040U CN 206264471 U CN206264471 U CN 206264471U
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- composite film
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Abstract
The utility model discloses a kind of graphene composite film, successively including film ground layer, nylon mesh back-up coat, bonding coat, evoh layer and Graphene barrier layer.Graphene composite film of the present utility model, reduces film oxygen permeability, at the same film anti-extrusion and it is resistance to tear performance raising, and its is more environmentally-friendly, environmentally friendly, can large-scale promotion use.
Description
Technical field
The utility model is related to packaging field, more particularly to a kind of graphene composite film.
Background technology
Food security always is a topic of common concern, and in terms of the quality of food is ensured, packaging material are played
Extremely important effect.For example, greatly reducing the oxygen infiltration of packaging come packaged food using high-barrier packaging material
Rate, can extend chilled food, such as the shelf life of the non-frost based food of meat, cheese, fish and milk powder and nut, bring huge
Economic benefit, it is to avoid because it is expired and caused by significant wastage.
Although aluminium foil and PVDC still occupy an leading position with cost advantage because of technology in the Obstruct membrane for reducing oxygen permeability,
But the development of PVDC is received shadow greatly there may be the arguement of carcinogen dioxin etc. about chloride system's plastics recovery burning
Ring.In recent years, international community is to the cry more and more higher of green package, therefore has the trend substituted by other packaging material, special
Not in Japan, actively advocate using halogen-free packaging material.And it is aluminum-plastic packaged due to completely opaque, it is impossible to microwave plus
Heat, to consumer using bringing inconvenience.
Current barrier package bag anti-extrusion and resistance to performance of tearing are weaker, and when content is heavier or more, packaging bag is held
It is easily rupturable, meanwhile, when transport and consumer use, firmly touch, easily rupture, cause the inside liquid etc. to spill.
Therefore, prior art has yet to be improved and developed.
Utility model content
In view of above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of graphene composite film, it is intended to
Solve the problems, such as existing packaging material not environmentally, barrier property, anti-extrusion and resistance to tear performance weaker.
The technical solution of the utility model is as follows：
A kind of graphene composite film, wherein, successively including film ground layer, nylon mesh back-up coat, bonding coat, evoh layer and
Graphene barrier layer.
Described graphene composite film, wherein, the thickness of the film ground layer is 10 μm ~ 250 μm.
Described graphene composite film, wherein, the thickness of the bonding coat is 1 μm ~ 250 μm.
Described graphene composite film, wherein, the thickness of the evoh layer is 2 μm ~ 250 μm.
Described graphene composite film, wherein, the thickness of the Graphene barrier layer is 1 μm ~ 250 μm.
Described graphene composite film, wherein, regularly arranged multiple mesh are provided with the nylon mesh back-up coat.
Described graphene composite film, wherein, the mesh is circle.
Described graphene composite film, wherein, the film ground layer is PET films or PE films.
Described graphene composite film, wherein, the bonding coat is pressure sensitive adhesive.
Beneficial effect：Graphene composite film of the present utility model, reduces film oxygen permeability, while film anti-extrusion
Improved with resistance to performance of tearing, and its is more environmentally-friendly, environmentally friendly, can large-scale promotion use.
Brief description of the drawings
Fig. 1 is a kind of structural representation of graphene composite film preferred embodiment of the utility model.
Fig. 2 is the structural representation of nylon mesh back-up coat in Fig. 1.
Specific embodiment
The utility model provides a kind of graphene composite film, to make the purpose of this utility model, technical scheme and effect more
Plus it is clear, clear and definite, the utility model is further described below.It should be appreciated that specific embodiment described herein is only
Only it is used to explain the utility model, is not used to limit the utility model.
Fig. 1 is referred to, Fig. 1 is a kind of structural representation of graphene composite film preferred embodiment of the utility model, is such as schemed
It is shown, successively including film ground layer 1, nylon mesh back-up coat, bonding coat, evoh layer 3 and Graphene barrier layer 4, wherein, Fig. 1
It is middle using nylon mesh back-up coat and bonding coat as being generally indicated at 2, evoh layer 3 is ethylene-vinyl alcohol copolymer.
Graphene composite film of the present utility model, anti-extrusion is resistance to tear, and surface gloss is good, and transparency is good, and environmental protection is free of
Chlorine.And it is easily recycled, barrier property is excellent, especially to O2Barrier property be greatly improved.So the utility model
Graphene composite film can be had broad application prospects in food, medicine and other packaging fields.
The thickness of the film ground layer 1 is preferably 10 μm ~ 250 μm, for example, 150 μm.The film ground layer 1 is preferably
PET films or PE films.
The thickness of the bonding coat is preferably 1 μm ~ 250 μm, for example, 100 μm.
The thickness of the evoh layer 3 is preferably 2 μm ~ 250 μm, for example, 200 μm.The evoh layer 3 is used with bonding coat
The mode for pasting is fitted.
Further, the thickness of the Graphene barrier layer 4 is 1 μm ~ 250 μm.The Graphene barrier layer 4 is water-based gloss oil
Coating, wherein can graphene-containing component, be coated on the surface of evoh layer 3 by the way of coating, and can enter through ultraviolet light or LED
The treatment of row photocuring.
Further, it is therein as shown in Fig. 2 being provided with regularly arranged multiple mesh on the nylon mesh back-up coat
Regularly arranged refers to be arranged according to identical lateral separation and vertical interval.The mesh is preferably circular, also may be used certainly
It is square or other regular or irregular shapes.The net that the nylon mesh back-up coat is weaved into for nylon yarn, similar to fishing
Web frame.
Specifically nylon mesh back-up coat can be laid in the top of film ground layer 1, bonding coat then be brushed, with evoh layer of fitting
3。
The bonding coat is pressure sensitive adhesive.The raw material of the bonding coat 2 are organic silicon rubber, acrylic type resin, insatiable hunger
With polyester, polyurethane or epoxy resin.
In addition, the surface of the evoh layer 3（The one side contacted with Graphene barrier layer 4）It is preferably provided with multiple grooves, phase
Answer, the surface of Graphene barrier layer 4 is provided with multiple projections for being inserted into the groove, advantage of this is that
Evoh layer 3 and the contact area of Graphene barrier layer 4 can be improved, so as to increase barrier property.The shape of the groove is preferably
Cylinder shape groove, then the raised shape is preferably cylindrical bump.The groove can be arranged in the rule of surface of barrier layer 3
Row, i.e., the spacing between adjacent groove is identical.
Embodiment 1
Step one：Prepare film ground layer 1, nylon mesh back-up coat and bonding coat（2）, evoh layer 3, the graphite being covered in
Alkene barrier layer 4；Film ground layer 1 is PET films, and thickness is 150 μm；The species of bonding coat is pressure sensitive adhesive, the raw material of bonding coat
It is organic silicon rubber, the thickness of bonding coat is 100 μm；The method for obtaining the raw material of Graphene barrier layer 4 is：Using Hummers methods
Prepare graphene oxide, specific technological process：The reaction bulb of 250 mL is assembled in ice-water bath, appropriate dense sulphur is added
Acid, stirring is lower to add the solid mixture of 2 g graphite powders and 1 g sodium nitrate, then adds 6 g potassium permanganate by several times, control reaction
Temperature is no more than 20 DEG C, and stirring reaction is warmed up to 35 DEG C or so for a period of time, then, continues to stir 30 min, is slow added into
Deionized water, continues after mixing 20 min, and adds hydrogen peroxide to reduce the oxidant of residual, solution is changed into glassy yellow.Filter while hot,
And washed with 5%HCl solution and deionized water untill sulfate radical-free is detected in filtrate, add deionized water ultrasound stripping
From 48 hours, using KH570 functionalization, freeze-drying was added in water-based gloss oil, is uniformly dispersed.
The number of plies of Graphene barrier layer 4 can be 5 layers.
Step 2：Nylon mesh back-up coat is laid in the top of film ground layer 1, bonding coat is then brushed.
Step 3：Evoh layer 3 is combined using the method for pasting；Obtain evoh layer 3+ nylon mesh back-up coat and bonding coat
（2）The composite construction of+film ground layer 1；
Step 4：Water-based gloss oil containing graphene oxide is coated in the composite construction that step 3 is obtained, through UV-curing
Change.
Embodiment 2
Step one：Prepare film ground layer 1, nylon mesh back-up coat and bonding coat（2）, evoh layer 3, the graphite being covered in
Alkene barrier layer 4；Film ground layer 1 is PET films or PE films, and thickness is 100 μm；The species of bonding coat 3 is pressure sensitive adhesive, bonding coat
Raw material be acrylic type resin, 120 μm of the thickness of bonding coat；The method for obtaining the raw material of Graphene barrier layer 4 is：Using
Hummers methods prepare graphene oxide, specific technological process：The reaction bulb of 250 mL is assembled in ice-water bath, is added suitable
The concentrated sulfuric acid of amount, stirring is lower to add the solid mixture of 2 g graphite powders and 1 g sodium nitrate, then adds 6 g potassium permanganate by several times,
Controlling reaction temperature is no more than 20 DEG C, and stirring reaction is warmed up to 35 DEG C or so for a period of time, then, continues to stir 30 min, then
Deionized water is slowly added to, is continued after mixing 20 min, and add hydrogen peroxide to reduce the oxidant of residual, solution is changed into glassy yellow.
Filter while hot, and washed with 5%HCl solution and deionized water untill sulfate radical-free is detected in filtrate, add deionization
Water ultrasound is peeled off 48 hours, and using KH570 functionalization, freeze-drying is added in oiliness gloss oil, is uniformly dispersed.
The number of plies of Graphene barrier layer 4 can be 5 layers.
Step 2：Nylon mesh back-up coat is laid in the top of film ground layer 1, bonding coat is then brushed.
Step 3：Evoh layer 3 is combined using the method for pasting；Obtain evoh layer 3+ nylon mesh back-up coat and bonding coat
（2）The composite construction of+film ground layer 1；
Step 4：Oiliness gloss oil containing graphene oxide is coated in the composite construction that step 3 is obtained, ultraviolet light polymerization.
In sum, graphene composite film of the present utility model, reduces film oxygen permeability, while film anti-extrusion
Improved with resistance to performance of tearing, and its is more environmentally-friendly, environmentally friendly, can large-scale promotion use.
It should be appreciated that application of the present utility model is not limited to above-mentioned citing, those of ordinary skill in the art are come
Say, can according to the above description be improved or converted, all these modifications and variations should all belong to the appended power of the utility model
The protection domain that profit is required.
Claims (9)
1. a kind of graphene composite film, it is characterised in that successively including film ground layer, nylon mesh back-up coat, bonding coat, EVOH
Layer and Graphene barrier layer.
2. graphene composite film according to claim 1, it is characterised in that the thickness of the film ground layer is 10 μm ~ 250
μm。
3. graphene composite film according to claim 1, it is characterised in that the thickness of the bonding coat is 1 μm ~ 250 μm.
4. graphene composite film according to claim 1, it is characterised in that the thickness of the evoh layer is 2 μm ~ 250 μm.
5. graphene composite film according to claim 1, it is characterised in that the thickness of the Graphene barrier layer is 1 μm ~
250μm。
6. graphene composite film according to claim 1, it is characterised in that be provided with rule on the nylon mesh back-up coat
The multiple mesh for then arranging.
7. graphene composite film according to claim 6, it is characterised in that the mesh is circle.
8. graphene composite film according to claim 1, it is characterised in that the film ground layer is PET films or PE films.
9. graphene composite film according to claim 1, it is characterised in that the bonding coat is pressure sensitive adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621350040.XU CN206264471U (en) | 2016-12-09 | 2016-12-09 | A kind of graphene composite film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621350040.XU CN206264471U (en) | 2016-12-09 | 2016-12-09 | A kind of graphene composite film |
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| Publication Number | Publication Date |
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| CN206264471U true CN206264471U (en) | 2017-06-20 |
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| CN201621350040.XU Active CN206264471U (en) | 2016-12-09 | 2016-12-09 | A kind of graphene composite film |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109177400A (en) * | 2018-06-19 | 2019-01-11 | 宁波鸿雁包装材料有限公司 | A kind of high tensile film and production method |
-
2016
- 2016-12-09 CN CN201621350040.XU patent/CN206264471U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109177400A (en) * | 2018-06-19 | 2019-01-11 | 宁波鸿雁包装材料有限公司 | A kind of high tensile film and production method |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Ling Inventor after: Chen Shou Inventor after: Sun Yaoming Inventor after: Li Mingyu Inventor before: Zhang Ling Inventor before: Chen Shou Inventor before: Jiang Hong Inventor before: Sun Yaoming Inventor before: Li Mingyu |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518117 Longgang Avenue, Longgang District, Shenzhen, Guangdong Province, No. 1001 workshop 1 B201, workshop two 201 Patentee after: Shenzhen 863 New Material Technology Co., Ltd. Address before: 518117 Longgang Avenue, Longgang District, Shenzhen, Guangdong Province, No. 1001 workshop 1 B201, workshop two 201 Patentee before: Shenzhen 863 Program Research and Development Center |