CN203818686U - Antistatic barrier membrane - Google Patents
Antistatic barrier membrane Download PDFInfo
- Publication number
- CN203818686U CN203818686U CN201420242547.8U CN201420242547U CN203818686U CN 203818686 U CN203818686 U CN 203818686U CN 201420242547 U CN201420242547 U CN 201420242547U CN 203818686 U CN203818686 U CN 203818686U
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- CN
- China
- Prior art keywords
- antistatic
- membrane
- membrane layer
- rete
- film
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Abstract
An antistatic barrier membrane is composited by multiple layers which comprise an outer base membrane layer, a barrier membrane layer, a reinforcement membrane layer and an antistatic bottom membrane layer from outside to inside sequentially, wherein the outer base membrane layer adopts a thermoplastic polyolefin resin membrane; the barrier membrane layer adopts multiple layers of coextrusion nylon composite membranes or EVOH (ethylene vinyl alcohol) composite membranes; the reinforcement membrane layer adopts a thermoplastic polyester film layer; and the antistatic bottom membrane layer adopts a polyurethane coating added with antistatic master batch. The composite membrane is compact in combination, has an excellent barrier property and antistatic property, and can be applied to the field of powder packaging requiring gas barrier.
Description
Technical field
The utility model relates to a kind of membrane material, relates in particular to a kind of packaging film material with excellent barrier and antistatic behaviour.
Background technology
Packaging film occupies significant proportion in people's productive life, and different package bodies has proposed different requirements to packaging film, and in ensureing mechanical strength, various functional membranes are all developed and needs.And in powder packaging, be no matter the powder of foodstuff as milk powder, black sesame paste, lotus root starch etc. or the packaging of industrial powder, all wish, in the time repeatedly opening bag, flying upward of powder or entering of dust do not occur, and this just requires film body to have certain antistatic behaviour.Meanwhile, for the permanent protection to inner package, also need packaging film to there is excellent barrier properties for gases in case the entering of block gas.In current technology, existing invention relates to technological development in this respect, as in CN 202088592 U, announced a kind of multi-layer co-extruded can permanence antistatic film, be attached with ion conductive polymer layer by the table of film surface coverage and realize its antistatic behaviour, but this technology is passed through Multi-layer co-extrusion film-blowing, because layers of material nature differs greatly, thus all higher to the requirement of equipment and technique thereof, in production, need the adaptability that equipment is very high to material.As reached the antistatic object with intercepting by simpler method, larger application and market prospects will be there are undoubtedly.
Utility model content
The technical problems to be solved in the utility model is, overcomes the above-mentioned defect that prior art exists, and a kind of composite membrane with good barrier and antistatic behaviour is provided.
The utility model solves the technical scheme that its technical problem adopts:
A kind of antistatic Obstruct membrane, is formed by MULTILAYER COMPOSITE, comprises successively from outside to inside outer basement membrane, intercepts rete, strengthens rete, antistatic bottom membrane.
Further, described outer basement membrane is thermoplastic polyolefin resin's film.As polyethylene film, polypropylene screen, multiple polyethylene is as high density polyethylene (HDPE), low density polyethylene (LDPE), LLDPE blend etc.Preferably, the polyethylene film and the polypropylene screen that adopt stretch processes to prepare.
Further, described obstruct rete is multi-layer co-extruded coextrusion nylon film or EVOH(ethylene-vinyl alcohol copolymer) composite membrane.Coextrusion nylon film and EVOH are complex as with nylon and nanometer SiO
2, EVOH and nanometer SiO
2for raw material, add extrusion-blown modling film forming after a small amount of compatilizer blend.Its co-extrusion number of plies is between 3-5 layer.Wherein EVOH and nanometer SiO
2and nylon and nanometer SiO
2mass ratio be between 100:3-100:8.
Further, described enhancing rete is thermoplastic polyester film.As polyethylene terephtalate film, polybutylene terephthalate (PBT) PBT film etc., preferential, adopt PET film.
Further, described antistatic counterdie is the polyurethane coating film that adds antistatic master batch.Described antistatic master batch is different ions surfactant, and as cationic surfactant, anion surfactant etc., can significantly reduce body surface resistance, makes it reach 10 Ω left and right, and has water-soluble.Antistatic additive was added in the polyurethane coating of water-based in the poly-stage, obtain but the antistatic polyurethane coating of component or bi-component obtains antistatic polyurethane film by curing of coating.
Further, the thickness of each layer is: the thickness of outer basement membrane is 0.04-0.08mm, and the thickness that intercepts rete is 0.1-0.5mm, and the thickness that strengthens rete is 0.2-0.5mm, and the thickness of antistatic bottom membrane is 0.04-0.08mm.
Brief description of the drawings
Fig. 1 is the utility model one example structure schematic diagram.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
With reference to Fig. 1, a kind of antistatic Obstruct membrane, is formed by MULTILAYER COMPOSITE, comprises successively from outside to inside outer basement membrane 1, intercepts rete 2, strengthens rete 3, antistatic bottom membrane 4.
Described outer basement membrane is polyethylene film biaxial stretching film.
Described obstruct rete is 3 layers of co-extrusion EVOH(ethylene-vinyl alcohol copolymer) composite membrane.Composite membrane is with EVOH and nanometer SiO
2for raw material, add extrusion-blown modling film forming after a small amount of compatilizer blend.Wherein EVOH and nanometer SiO
2mass ratio be 100:5.
Described enhancing rete 3 is thermoplasticity PET polyester film.
Described antistatic counterdie 4 is for adding the polyurethane coating film of antistatic master batch.
The thickness of described outer basement membrane 1 is 0.06mm, and the thickness that intercepts rete 2 is 0.4mm, and the thickness that strengthens rete 3 is 0.3mm, and the thickness of antistatic bottom membrane 4 is 0.06mm.
Above a kind of preferred embodiment of the present utility model is done to detailed introduction.Described detailed description of the invention is just for helping to understand core concept of the present utility model.It should be pointed out that for those skilled in the art, do not departing under the prerequisite of the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also belong to the protection domain of the utility model claim.
Claims (5)
1. an antistatic Obstruct membrane, is formed by MULTILAYER COMPOSITE, comprises successively from outside to inside outer basement membrane, intercepts rete, strengthens rete, antistatic bottom membrane.
2. antistatic Obstruct membrane according to claim 1, is characterized in that: outer basement membrane is thermoplastic polyolefin resin's film.
3. antistatic Obstruct membrane according to claim 1, is characterized in that: intercepting rete is multi-layer co-extruded coextrusion nylon film or EVOH composite membrane.
4. antistatic Obstruct membrane according to claim 1, is characterized in that: strengthening rete is thermoplastic polyester rete.
5. antistatic Obstruct membrane according to claim 1, is characterized in that: described antistatic counterdie is the polyurethane coating film that adds antistatic master batch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420242547.8U CN203818686U (en) | 2014-05-13 | 2014-05-13 | Antistatic barrier membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420242547.8U CN203818686U (en) | 2014-05-13 | 2014-05-13 | Antistatic barrier membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203818686U true CN203818686U (en) | 2014-09-10 |
Family
ID=51474226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420242547.8U Expired - Fee Related CN203818686U (en) | 2014-05-13 | 2014-05-13 | Antistatic barrier membrane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203818686U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110650840A (en) * | 2017-04-19 | 2020-01-03 | 陶氏环球技术有限责任公司 | Laminated structure and flexible packaging material containing same |
-
2014
- 2014-05-13 CN CN201420242547.8U patent/CN203818686U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110650840A (en) * | 2017-04-19 | 2020-01-03 | 陶氏环球技术有限责任公司 | Laminated structure and flexible packaging material containing same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20150513 |
|
| EXPY | Termination of patent right or utility model |