CN202805828U - Polyethylene film - Google Patents
Polyethylene film Download PDFInfo
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- CN202805828U CN202805828U CN 201220393357 CN201220393357U CN202805828U CN 202805828 U CN202805828 U CN 202805828U CN 201220393357 CN201220393357 CN 201220393357 CN 201220393357 U CN201220393357 U CN 201220393357U CN 202805828 U CN202805828 U CN 202805828U
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- polyethylene film
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- polyethylene
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Abstract
The utility model discloses a polyethylene film. The polyethylene film comprises an inner layer, a middle layer and an outer layer, wherein a corona surface is arranged on the outer layer; and an organic compound monomer layer is arranged on the corona surface. The polyethylene film has the advantages that the surface tension of the polyethylene film is greatly improved; compared with other graft monomers, the polyethylene film is lighter in operating environment smell and better in environmental conditions; and compared with liquid grafting reactions, the polyethylene film does not require post-treatment, thus saving the processing procedures and cost and improving the production efficiency.
Description
Technical field
The utility model relates to a kind of novel flexible packing material of modification, specifically, relates to a kind of polyethylene film.
Background technology
Polyethylene film is widely used in the flexible package field, but because it is non-polar material, compares with nylon membrane, polyester film polar materials, exist low, the compound fastness of polarity poor, the shortcoming such as static arranged.When flexible package blown film operation, need polyethylene film is processed, to improve its surface tension.Yet processing mode generally speaking is sided corona treatment, and the polyethylene film surface tension after the processing is still lower, and easily decay, often causes the composite membrane peel strength not high, unstable product quality.
Low in order to overcome the polyethylene film surface energy, sided corona treatment is the problem of decay easily, can utilize the surface grafting method at the grafting strand of material surface introducing with chemical bonds.Provide a kind of pre-irradiation grafting technology to prepare the method for polyethylene anti-fog thin film such as patent CN1370795A, adopted gamma-rays or electron beam irradiation polyethylene film; Patent CN101735470A provides a kind of method of utilizing the modification of polypropylene film irradiation grafting to prepare lithium ion battery separator, adopts electron irradiation and liquid surface grafting method, and polypropylene film is carried out modification.These processing modes all exist apparatus expensive, and grafting efficiency is low, are not suitable for the shortcoming of large-scale continuous production.And patent CN102432905A provides a kind of low temperature plasma to cause the method for modifying of polyethylene film surface gas phase grafting, utilize the Low Temperature Plasma Treating machine that polyethylene film is carried out sided corona treatment, after propylene liguid acids monomer and activator mix, vaporize by vaporizer, polyethylene film surface after nozzle is injected in sided corona treatment uniformly with gaseous form, carry out irradiation through ultraviolet light, activator is by uv photosensitization, cause acrylic monomer in the gas phase grafting of polyethylene film surface, obtain surperficial gas phase grafted polyethylene film.The method has been saved procedure and processing cost, has also improved production efficiency, has adapted to the requirement of large-scale production.But its acrylic monomer that adopts is acrylic acid or acrylonitrile, exists this percent grafting low, and the operation site smell heavily waits shortcoming.
The utility model content
The purpose of this utility model is to provide a kind of polyethylene film, and it is poor effectively to solve surface tension, produces the heavy problem of smell.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions: a kind of polyethylene film, comprise internal layer, middle level, skin, and described skin is provided with corona surface, and described corona surface is provided with the organic compound monomer layer.
Preferably, described organic compound monomer layer is the methacrylic acid monomer layer; Reduce smell when producing.
Preferably, described organic compound monomer layer is arranged on the outer field corona surface by grafting; Adopt the gas phase grafting method, the grafting efficiency of methacrylic acid monomer is high.
Preferably, described skin, middle level and internal layer are polyethylene layer.
Preferably, the polyethylene layer that is composited by low density polyethylene (LDPE) and LLDPE of described skin.
Preferably, the polyethylene layer that is composited by low density polyethylene (LDPE) and LLDPE of described middle level.
Preferably, the polyethylene layer that is composited by low density polyethylene (LDPE), LLDPE and metallocene linear-low density polyethylene of described internal layer.
Compared with prior art, the utility model has the advantages that: the polyethylene film surface tension is greatly improved, and compares the operating environment lighter odor with other grafted monomers, and environmental aspect is better; Compare with liquid graft reaction, do not need post processing, saved procedure and processing cost, also improved production efficiency.
Description of drawings
Fig. 1 is the structural representation of a kind of polyethylene film of the utility model.
The specific embodiment
Consult the embodiment that Fig. 1 is a kind of polyethylene film of the utility model, a kind of polyethylene film, comprise internal layer 1, middle level 2, outer 3, described outer 3 are provided with corona surface, described corona surface is provided with organic compound monomer layer 4, described organic compound monomer layer 4 is the methacrylic acid monomer layer, and described organic compound monomer layer 4 is arranged on the corona surface of skin 3 by grafting.
Described outer 3 by low density polyethylene (LDPE) with LLDPE is compound forms, described middle level 2 is by low density polyethylene (LDPE) and LLDPE is compound forms, and described internal layer 1 is added by low density polyethylene (LDPE), LLDPE and metallocene linear-low density polyethylene that opening agent is compound to be formed.Grafted monomers is vaporized, uv photosensitization is processed, so that polyethylene film surface gas phase graft reaction has very high reaction rate, be fit to large-scale continuous production, this is that a lot of intermittent reaction technology are not available, polyethylene film low temperature plasma surface corona is processed, compare with gamma-rays or electron beam irradiation processing mode, efficient is faster, cost is also lower, polyethylene surface grafting after processing through this method the polar molecule group, greatly improve film surface tension force, improved cohesive force, can solve the not high and unsettled problem of composite package film peel strength, polyethylene surface grafting after processing through this method the polar molecule group, the permanent raising of contact angle and surface tension does not prolong in time and decays, and has good constant product quality.
The above only is specific embodiment of the utility model, but technical characterictic of the present utility model is not limited to this, any those skilled in the art is in field of the present utility model, and the variation of doing or modification all are encompassed among the claim of the present utility model.
Claims (4)
1. a polyethylene film comprises internal layer (1), middle level (2), outer (3), and it is characterized in that: described skin (3) is provided with corona surface, and described corona surface is provided with organic compound monomer layer (4).
2. a kind of polyethylene film as claimed in claim 1, it is characterized in that: described organic compound monomer layer (4) is the methacrylic acid monomer layer.
3. a kind of polyethylene film as claimed in claim 1 or 2, it is characterized in that: described organic compound monomer layer (4) is arranged on the corona surface of skin (3) by grafting.
4. a kind of polyethylene film as claimed in claim 1, it is characterized in that: described skin (3), middle level (2) and internal layer (1) are polyethylene layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220393357 CN202805828U (en) | 2012-08-09 | 2012-08-09 | Polyethylene film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220393357 CN202805828U (en) | 2012-08-09 | 2012-08-09 | Polyethylene film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202805828U true CN202805828U (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220393357 Expired - Fee Related CN202805828U (en) | 2012-08-09 | 2012-08-09 | Polyethylene film |
Country Status (1)
| Country | Link |
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| CN (1) | CN202805828U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111171743A (en) * | 2019-12-27 | 2020-05-19 | 无锡达美新材料有限公司 | Rubber type polyethylene protective film and preparation method thereof |
| CN111171745A (en) * | 2019-12-27 | 2020-05-19 | 无锡达美新材料有限公司 | Durable high-surface-energy polyethylene protective film and preparation method thereof |
| CN111171744A (en) * | 2019-12-27 | 2020-05-19 | 无锡达美新材料有限公司 | Double-interface synergistic polyethylene protective film and preparation method thereof |
| CN116021808A (en) * | 2023-03-27 | 2023-04-28 | 河北海伟电子新材料科技股份有限公司 | BOPP film and corona treatment method thereof |
-
2012
- 2012-08-09 CN CN 201220393357 patent/CN202805828U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111171743A (en) * | 2019-12-27 | 2020-05-19 | 无锡达美新材料有限公司 | Rubber type polyethylene protective film and preparation method thereof |
| CN111171745A (en) * | 2019-12-27 | 2020-05-19 | 无锡达美新材料有限公司 | Durable high-surface-energy polyethylene protective film and preparation method thereof |
| CN111171744A (en) * | 2019-12-27 | 2020-05-19 | 无锡达美新材料有限公司 | Double-interface synergistic polyethylene protective film and preparation method thereof |
| CN111171745B (en) * | 2019-12-27 | 2022-02-22 | 无锡达美新材料有限公司 | Durable high-surface-energy polyethylene protective film and preparation method thereof |
| CN111171743B (en) * | 2019-12-27 | 2022-04-19 | 无锡达美新材料有限公司 | Rubber type polyethylene protective film and preparation method thereof |
| CN116021808A (en) * | 2023-03-27 | 2023-04-28 | 河北海伟电子新材料科技股份有限公司 | BOPP film and corona treatment method thereof |
| CN116021808B (en) * | 2023-03-27 | 2023-06-16 | 河北海伟电子新材料科技股份有限公司 | BOPP film and corona treatment 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20170809 |