CN204914812U - Low temperature thermochromism film - Google Patents
Low temperature thermochromism film Download PDFInfo
- Publication number
- CN204914812U CN204914812U CN201520657882.9U CN201520657882U CN204914812U CN 204914812 U CN204914812 U CN 204914812U CN 201520657882 U CN201520657882 U CN 201520657882U CN 204914812 U CN204914812 U CN 204914812U
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- China
- Prior art keywords
- layer
- resin
- basal membrane
- starch
- thermochromic
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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- Laminated Bodies (AREA)
- Wrappers (AREA)
Abstract
The utility model discloses a low temperature thermochromism film, include the basal membrane that forms by easy degradable resin and starch or STARCH derivatives blend, have the adhesion layer who mixes formation by adhesive resin and polybutylene on the surface in at least one of basal membrane, set up the thermochromism layer on this adhesion layer, because this basal membrane has used polyethylene and polyester biodegradable resin to constitute the resin of basal membrane, and gives basal membrane self required draftability, it self has the polyester biodegradable resin of biodegradable nature, the synergism who contains starch or the STARCH derivatives in the basal membrane and contain the polybutylene in the adhesive phase in addition for the biodegradation who allows microorganism (like bacterium or polymer clastic enzyme) is in order to disperse the polyethylene enable simultaneously, moreover the visible luminousness of product has been guaranteed on this thermochromism layer, has guaranteed the light regulating action again, and inside food is not penetrated directly by the sunlight after the protective packing better, and is difficult rotten.
Description
Technical field
The utility model relates to stretched film art, refers in particular to a kind of Low-temperature Thermochromic film.
Background technology
Stretched film for packaged food is be made up of isozygotying resin such as polyethylene (PE) by convention.If this kind of packaging bag is exposed to outdoor, easily cause inner food spoilage by sunshine direct projection.In addition, in recent years, along with environmental consciousness strengthens, forbid that the regulation of burning waste plastics is put into effect in some local authority (such as, Okinawa Japan area under one's jurisdiction), and sometimes the people violating this type of regulation is fined.In view of this, occurred the packaging material adopting pure paper matter, after using, paper wrapper is easily degraded, without the need to burning.But the packaging material high cost of pure paper matter, and without transparency, consumer can not through the food that packaging bag viewing is inner whether suitable oneself.
Therefore, needing the stretched film product for packaged food to reduce costs, disposed as degradable and revert to soil and do not need to burn, is that industry needs the urgent problems solved.
Utility model content
In view of this, the utility model is for the disappearance of prior art existence, its main purpose is to provide a kind of Low-temperature Thermochromic film, use as packaging film, not only ensure that draftability, degradability, under light illumination but also can variable color, effectively prevent sunlight direct irradiation from destroying the character of interior packing article.
For achieving the above object, the utility model adopts following technical scheme:
A kind of Low-temperature Thermochromic film, comprise basilar memebrane, at least one of this basilar memebrane has adhesion layer on the surface, arranges thermochromic layer on this adhesion layer, and this thermochromic layer is made up of vanadic anhydride inducing layer and gold thread stone titania buffer layer.
As a kind of preferred version, be provided with transparent scattering particles in described thermochromic layer, this scattering particles is at least arranged in vanadic anhydride inducing layer or gold thread stone titania buffer layer.
As a kind of preferred version, described scattering particles is hollow structure.
As a kind of preferred version, the thickness of described basilar memebrane is 200-300nm, and the thickness of described adhesion layer is 50-100nm, and the thickness of described thermochromic layer is 50-200nm.
The utility model compared with prior art has obvious advantage and beneficial effect, specifically, as shown from the above technical solution, it is mainly provided with basilar memebrane, adhesion layer and thermochromic layer, this basilar memebrane gives the draftability needed for basilar memebrane self (elasticity) by using polyethylene and polyester biodegradable resin as the resin forming basilar memebrane, in addition himself there is the polyester biodegradable resin of biodegradable, be included in the starch in basilar memebrane or starch derivatives, with the synergy of the polybutene comprised within the adhesive layer, it make to allow microorganism as the biodegradation of bacterium or polymer unwinds enzyme with while dispersion polyethylene become possibility.Therefore, in the waste disposal of stretched film product according to the present invention, the major part of its quality disappears by biodegradation and does not need to burn, and only need throw aside product by its former state, such as, in being placed into the soil by product.This thermochromic layer ensure that the visual transparency of product, in turn ensure that light regulating action, and food inner after can protecting packaging is not better by sunshine direct projection, not perishable.
For more clearly setting forth architectural feature of the present utility model and effect, below in conjunction with accompanying drawing and specific embodiment, the utility model is described in detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the utility model.
Accompanying drawing identifier declaration:
10, basilar memebrane 20, adhesion layer
30, thermochromic layer 31, vanadic anhydride inducing layer
32, gold thread stone titania buffer layer 33, scattering particles.
Detailed description of the invention
Please refer to shown in Fig. 1, that show the concrete structure of the preferred embodiment of the utility model, be a kind of Low-temperature Thermochromic film, its structure comprises basilar memebrane 10, in at least one of basilar memebrane 10, there is adhesion layer 20 on the surface, on this adhesion layer 20, thermochromic layer 30 is set.The thickness of described basilar memebrane 10 is 200-300nm, and the thickness of described adhesion layer 20 is 50-100nm, and the thickness of described thermochromic layer 30 is 50-200nm.
Wherein, basilar memebrane 10 is by obtaining in the resin blend of raw material based on starch or starch derivatives being mixed into, and this blend is by by polyester biodegradable resin and polyethylene blend preparation.By by using polyethylene and polyester biodegradable resin as the resin forming basilar memebrane, give the draftability (elasticity) needed for basilar memebrane 10 self.In the present embodiment, polyester biodegradable resin preferably comprises aliphatic diol and the aliphatic dicarboxylic acid aliphatic polyester resin as primary raw material, or comprises aliphatic diol, aliphatic dicarboxylic acid and the aromatic dicarboxylic acid aliphatic/aromatic hybrid polyester resin as primary raw material.
Polyethylene preferably has 0.860g/cm
3or more to 0.921g/cm
3or the low density polyethylene (LDPE) of less density.Because the branched structure in low-density polymeric generally can be observed at molecular level, the polyethylene used in the present invention preferably has the low density polyethylene (LDPE) of less branched structure, such as, in these polyethylene most preferably as JIS(Japanese Industrial Standards) straight-chain low density polyethylene (LLDPE) that defines in K6899-1:2000.The characteristic of the stretched film as product can be affected widely, in addition, because the polymer of the molecular skeleton and High Linear with less branched structure more can be subject to the biodegradation of microorganism as bacterium by the poly characteristic used.
Resin blend comprises starch or starch derivatives extraly, and the starch of the esterification obtained by the esterification of starch and organic acid etc. can be indicated as the example of starch derivatives.The instantiation of the starch of esterification comprises hydrogen octenylbutanedioate starch.These starch and starch derivatives play the biodegradation promoting biodegradable resin.
Described adhesion layer 20 is mixed to form by adhesive resin and polybutene.Adhesive resin refers to the polymer had as the jointing material for polybutene being attached to basilar memebrane 10 surface or bonding agent (bindingaid) function.Adhesive resin must be attached to basilar memebrane 10 while comprising polybutene, therefore preferably there is certain plasticity or film forming characteristics, in addition, because adhesive resin is attached to basilar memebrane 10 surface, it preferably has heat resistance and water proofing property to a certain extent.
Thermochromic layer 30 is bonded in basilar memebrane 10 by adhesion layer 20.When thermochromic layer 30 is shaping, by depositing one deck vanadic anhydride in advance as inducing layer 31, then to be admired cushion 32 by the rutile titanium dioxide of solid-liquid induced growth crystallographic orientation thereon, after induced growth, the vanadic anhydride of bottom moves to top layer, the Rutile Type titanium dioxide forming crystallization is admired and the mixed film of vanadic anhydride, by reducing gas, the vanadic anhydride of top layer is reduced to vanadium dioxide again, or by inert gas pyrolytic top layer vanadic anhydride, finally obtain substrate/rutile titanium dioxide admire/rutile vanadium dioxide thermochromic layer 30.In addition, be provided with transparent scattering particles 33 in described thermochromic layer 30, this scattering particles 33 is at least arranged in vanadic anhydride inducing layer 31 or gold thread stone titania buffer layer 32.Scattering particles 33 is preferably hollow structure, can change the refraction angle of light.
In sum, design focal point of the present utility model is, it is mainly provided with basilar memebrane 10, adhesion layer 20 and thermochromic layer 30, this basilar memebrane 10 is by using polyethylene and polyester biodegradable resin as the resin forming basilar memebrane, and give the draftability needed for basilar memebrane 10 self (elasticity), in addition himself there is the polyester biodegradable resin of biodegradable, be included in the starch in basilar memebrane 10 or starch derivatives, with the synergy of the polybutene comprised within the adhesive layer, it make allow microorganism (as bacterium or polymer unwinds enzyme) biodegradation with while dispersion polyethylene become possibility.Therefore, in the waste disposal of stretched film product according to the present invention, the major part of its quality disappears by biodegradation and does not need to burn, and only need throw aside product by its former state, such as, in being placed into the soil by product.In addition; this thermochromic layer 30 is (within 30 degree) basic nondiscolouring at normal temperatures; ensure that the visual transparency of product; once more than 30 degree of high temperature; namely variable color is raised with temperature darker; ensure that light regulating action, food inner after can protecting packaging is not better by sunshine direct projection, not perishable.
The above, it is only preferred embodiment of the present utility model, not technical scope of the present utility model is imposed any restrictions, therefore every above embodiment is done according to technical spirit of the present utility model any trickle amendment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (4)
1. a Low-temperature Thermochromic film, it is characterized in that: comprise basilar memebrane, at least one of this basilar memebrane has adhesion layer on the surface, arranges thermochromic layer on this adhesion layer, and this thermochromic layer is made up of vanadic anhydride inducing layer and gold thread stone titania buffer layer.
2. Low-temperature Thermochromic film according to claim 1, is characterized in that: be provided with transparent scattering particles in described thermochromic layer, and this scattering particles is at least arranged in vanadic anhydride inducing layer or gold thread stone titania buffer layer.
3. Low-temperature Thermochromic film according to claim 2, is characterized in that: described scattering particles is hollow structure.
4. Low-temperature Thermochromic film according to claim 1, is characterized in that: the thickness of described basilar memebrane is 200-300nm, and the thickness of described adhesion layer is 50-100nm, and the thickness of described thermochromic layer is 50-200nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520657882.9U CN204914812U (en) | 2015-08-28 | 2015-08-28 | Low temperature thermochromism film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520657882.9U CN204914812U (en) | 2015-08-28 | 2015-08-28 | Low temperature thermochromism film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204914812U true CN204914812U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520657882.9U Expired - Fee Related CN204914812U (en) | 2015-08-28 | 2015-08-28 | Low temperature thermochromism film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204914812U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109206945A (en) * | 2017-06-29 | 2019-01-15 | 中国石油化工股份有限公司 | A kind of inorganic reversible thermochromic material and preparation method thereof |
-
2015
- 2015-08-28 CN CN201520657882.9U patent/CN204914812U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109206945A (en) * | 2017-06-29 | 2019-01-15 | 中国石油化工股份有限公司 | A kind of inorganic reversible thermochromic material and preparation method thereof |
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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: 20151230 Termination date: 20210828 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |