CN211896766U - High-weather-resistance photosensitive color-changing window film - Google Patents
High-weather-resistance photosensitive color-changing window film Download PDFInfo
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- CN211896766U CN211896766U CN201921561848.6U CN201921561848U CN211896766U CN 211896766 U CN211896766 U CN 211896766U CN 201921561848 U CN201921561848 U CN 201921561848U CN 211896766 U CN211896766 U CN 211896766U
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Abstract
The utility model discloses a high weatherability photochromic window membrane, it is including the layer of scraping of preventing that connects gradually, first polyester film layer, photochromic layer, ultraviolet separation protective layer and from the type membrane, wherein, ultraviolet separation protective layer includes second polyester film layer, installation layer and adds the ultraviolet absorption material in second polyester film layer and/or installation layer, and ultraviolet separation protective layer thickness is 15 ~ 215 mu m, and 315 ~ 380nm separation rate is greater than or equal to 99.5%, 390nm separation rate is greater than or equal to 80%. High weatherability photochromic window membrane can avoid window membrane protection transition and the not enough condition of protection, and the ultraviolet that significantly reduces improves photochromic window membrane weatherability (life is more than or equal to 5 years) to the injury of chameleon material, keeps the sensitive color variation performance of product simultaneously for the window membrane that discolours can be applied to car glass and building glass effectively for a long time.
Description
Technical Field
The utility model relates to a building window membrane technical field, more specifically relates to a high weatherability photochromic window membrane.
Background
The window film is an energy-saving and environment-friendly product, and has wide market development prospect due to no pollution and convenient installation. The photochromic window film accurately senses the light intensity change under the irradiation of ultraviolet rays or sunlight, generates color change after absorbing the ultraviolet rays or the sunlight, realizes quick photochromic, and deepens the color of the film surface. Meanwhile, the intelligent reversible balance technology is adopted, and when the ultraviolet light or the sunlight is lost, the original color is recovered. The product after changing color can effectively prevent strong sunlight from stimulating the sight of a driver, effectively ensures the safety of the driver and improves the driving comfort.
The photochromic material used for the photochromic window film is one or more of spiropyran, fulgide, diarylethene and other compounds, wherein the spiropyran is most widely applied. However, the heat resistance and ultraviolet resistance of the color-changing material are not so good, and a heat stabilizer (antioxidant) is added to the color-changing coating material in order to improve the heat resistance of the color-changing material; in order to reduce the damage of ultraviolet rays to the color-changing material, a light stabilizer (hindered amine) and an ultraviolet absorber are added into the color-changing coating. The temperature of the general film glass can not exceed 60 ℃, the heat stability is added to improve the heat resistance of the color-changing material, and the use requirement can be met, but the damage of ultraviolet rays to the color-changing material can not be solved by adding the light stabilizer and the ultraviolet absorbent into the coating, and the use requirement can not be met.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming above-mentioned prior art's at least one not enough, provide a high weatherability photochromic window membrane, high weatherability photochromic window membrane can avoid window membrane protection transition (greatly reduced window membrane discoloration effect promptly) and the not enough (even life can not satisfy the requirement) condition of protection, the ultraviolet ray that significantly reduces is to color-changing material's injury, improves photochromic window membrane weatherability (life is more than or equal to 5 years), keeps the sensitive color-changing performance of product simultaneously for photochromic window membrane can be applied to car glass and building glass effectively for a long time.
The utility model adopts the following technical scheme:
the utility model provides a high weatherability photochromic window membrane, is including the scratch-resistant layer, first polyester film layer, photochromic layer, ultraviolet separation protective layer and the release film that connect gradually.
Specifically, the ultraviolet blocking protective layer comprises a second polyester film layer, a mounting layer and an ultraviolet absorption material added in the second polyester film layer and/or the mounting layer, the thickness of the ultraviolet blocking protective layer is 15-215 micrometers, the blocking rate of 315-380 nm is more than or equal to 99.5%, and the blocking rate of 390nm is more than or equal to 80%. The second polyester film layer added with the ultraviolet absorption material is an ultraviolet absorption polyester film layer, and the mounting layer added with the ultraviolet absorption material is an ultraviolet absorption mounting layer, so that the actual ultraviolet blocking protective layer comprises the second polyester film layer and the mounting layer, and the second polyester film layer is the ultraviolet absorption polyester film layer and/or the mounting layer is the ultraviolet absorption mounting layer.
This application is through setting up special ultraviolet separation protective layer, discovers the QUV time of the high weatherability photochromic window membrane of structural layer is not less than 1500 hours, has more than 5 years's life in other words, simultaneously the photochromic performance of high weatherability photochromic window membrane is excellent, can satisfy the requirement of high weatherability and excellent photochromic simultaneously. In the experimental process, the ultraviolet blocking protective layer is found to be capable of blocking 315-380 nm ultraviolet rays and partially blocking 390nm ultraviolet rays, the larger the blocking rate of the 390nm ultraviolet rays is, the better the weather resistance is, but the smaller the color change amplitude is, the more than or equal to 99.5% the blocking rate of the 315-380 nm ultraviolet rays and the more than or equal to 80% the blocking rate of the 390nm ultraviolet rays can enable the photosensitive color change window film to simultaneously take account of the weather resistance and the photosensitivity.
More preferably, the 390nm blocking rate of the ultraviolet blocking protective layer is 80-85%.
Preferably, the second polyester film layer is a transparent PET base film, a magnetic control base film, an aluminum-plated base film, a carbon crystal base film or a primary color base film, and the thickness of the second polyester film layer is 12-200 μm.
Preferably, the mounting layer is an acrylic pressure-sensitive adhesive layer, and the thickness of the coating is 5-30 micrometers.
Preferably, the scratch-resistant layer is an ultraviolet-cured polyurethane acrylate layer, and the thickness of the scratch-resistant layer is 1-5 microns.
Preferably, the first polyester film layer is a transparent PET base film, a magnetic control base film, an aluminum-plated base film, a carbon crystal base film or a primary color base film, and the thickness of the first polyester film layer is 12-200 μm.
Preferably, the photochromic layer is an acrylic pressure-sensitive adhesive layer or a polyurethane adhesive layer containing a spiropyran photochromic agent, and the thickness of the photochromic layer is 4-15 micrometers. The acrylic acid pressure-sensitive adhesive layer containing the spiropyran discoloring agent is recorded as a photosensitive discoloring acrylic acid pressure-sensitive adhesive layer, and the polyurethane adhesive layer containing the spiropyran discoloring agent is a photosensitive discoloring polyurethane adhesive layer, so that the photosensitive discoloring layer is actually the photosensitive discoloring acrylic acid pressure-sensitive adhesive layer or the photosensitive discoloring polyurethane adhesive layer. More preferably, a heat stabilizer, a light stabilizer and an ultraviolet absorber may be further added to the photochromic layer. The heat resistance of the photochromic layer can be improved by adding the heat stabilizer, and the damage to the photochromic layer can be reduced by the light stabilizer and the ultraviolet absorbent.
Preferably, the release film is a PET release film, the release force is 10-40 g, and the thickness is 10-100 μm.
Preferably, the ultraviolet absorbing material is an ultraviolet absorber, and the ultraviolet absorber may be one or more of salicylate, Benzophenone (BP), hydroxyphenol Benzotriazole (BTZ), hydroxyphenol triazine (HPT), and the like.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a set up the ultraviolet separation protective layer, can avoid window membrane protection transition (greatly reduced window membrane effect of discolouing promptly) and the not enough (even the life can not satisfy the requirement) condition of protection, can improve sensitization window membrane weatherability of discolouing (life is greater than or equal to 5 years), also can keep the sensitive color-changing performance of product simultaneously for the window membrane of discolouing can be applied to car glass and building glass effectively for a long time.
Drawings
Fig. 1 is a schematic diagram of the structure of the high weather resistance photosensitive color-changing window film of the present invention.
Description of the drawings: 1. a scratch-resistant layer; 2. a first polyester film layer; 3. a photochromic layer; 4. a second polyester film layer; 5. mounting a layer; 6. and (4) a release film.
Detailed Description
The drawings of the present invention are for illustration purposes only and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Example 1
As shown in fig. 1, the high weather-resistant photochromic window film comprises a scratch-resistant layer 1, a first polyester film layer 2, a photochromic layer 3, an ultraviolet blocking protective layer and a release film 6 which are sequentially connected, wherein the ultraviolet blocking protective layer comprises a second polyester film layer 4, an installation layer 5 and an ultraviolet absorbent added in the installation layer 5.
Specifically, in the present embodiment, the first polyester film layer 2 and the second polyester film layer 4 are both carbon crystal-based films, more specifically, carbon crystal-based films HS45BK of the family of naleinaceae. The mounting layer 5 is an acrylic pressure sensitive adhesive layer having a thickness of 5 to 10 μm, more specifically, Askalya 9510W. Specifically, in the embodiment, the ultraviolet absorbent, namely basf triazine TINUVIN477, is added in an amount of 3-5%. The ultraviolet blocking protective layer has a blocking rate of 315-380 nm of 99.8-99.9% and a blocking rate of 390nm of 80-88%.
Specifically, the scratch-resistant layer 1 is an ultraviolet-cured polyurethane acrylate layer, and the thickness of the scratch-resistant layer is 1-5 microns.
Specifically, the photochromic layer 3 is a polyurethane glue layer containing a spiropyran photochromic agent, and the thickness of the photochromic layer is 4-15 micrometers.
Specifically, release film 6 is PET release film, and thickness is 10 ~ 100um, from type power 10 ~ 40 g.
Example 2
As shown in fig. 1, the high weather-resistant photochromic window film comprises a scratch-resistant layer 1, a first polyester film layer 2, a photochromic layer 3, an ultraviolet blocking protective layer and a release film 6 which are sequentially connected, wherein the ultraviolet blocking protective layer comprises a second polyester film layer 4, an installation layer 5 and an ultraviolet absorbent added in the installation layer 5.
Specifically, in the present embodiment, the first polyester film layer 2 and the second polyester film layer 4 are both transparent PET base films. The mounting layer 5 is an acrylic pressure sensitive adhesive layer with a thickness of 10-15 μm, more specifically, Ashela 9510W. Specifically, in the embodiment, the ultraviolet absorbent, namely basf triazine TINUVIN477, is added in an amount of 3-5%. The ultraviolet blocking protective layer has a blocking rate of 315-380 nm of 99.8-99.9% and a blocking rate of 390nm of 82-90%.
Specifically, the scratch-resistant layer 1 is an ultraviolet-cured polyurethane acrylate layer, and the thickness of the scratch-resistant layer is 1-5 microns.
Specifically, the photochromic layer 3 is an acrylic pressure-sensitive adhesive layer containing a spiropyran photochromic agent, and the thickness of the acrylic pressure-sensitive adhesive layer is 4-15 micrometers.
Specifically, release film 6 is PET release film, and thickness is 10 ~ 100um, from type power 10 ~ 40 g.
The highly weather-resistant photochromic window films of the examples 1 and 2 are subjected to photochromic performance and weather resistance tests (the standard of film-coated glass is 3mm common float glass), and the test results show that the highly weather-resistant photochromic window films of the examples 1 and 2 have excellent photochromic capacity, and the time of photochromic failure ((discoloration decline of 5%)) of 0.6W @340nmQUV at 70 ℃ is more than 1500h (equivalent to the service life of more than or equal to 5 years). It is thus clear that high weatherability photochromic window membrane can the significantly reduced ultraviolet ray to the injury of chameleon material, improve photochromic window membrane weatherability (life is greater than or equal to 5 years), keep the sensitive color variation performance of product simultaneously for the window membrane that discolours can be applied to car glass and building glass effectively for a long time.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not limitations to the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a high weatherability photochromic window membrane which characterized in that, including the scratch-resistant layer, first polyester film layer, photochromic layer, ultraviolet separation protective layer and the release film that connect gradually.
2. The highly weatherable photochromic window film according to claim 1, wherein the ultraviolet blocking protective layer comprises a second polyester film layer and a mounting layer, the second polyester film layer is an ultraviolet absorbing polyester film layer and/or the mounting layer is an ultraviolet absorbing mounting layer, the thickness of the ultraviolet blocking protective layer is 15-215 μm, the blocking rate of 315-380 nm is not less than 99.5%, and the blocking rate of 390nm is not less than 80%.
3. The highly weatherable photochromic window film according to claim 2, wherein the second polyester film layer is a transparent PET base film, a magnetron base film, an aluminized base film, a carbon crystal base film or a primary color base film, and has a thickness of 12 to 200 μm.
4. The photochromic window film with high weatherability as claimed in claim 2, wherein the mounting layer is an acrylic pressure sensitive adhesive layer, and the thickness of the coating layer is 5-30 μm.
5. The photochromic window film of claim 1, wherein the scratch-resistant layer is an ultraviolet-cured urethane acrylate layer having a thickness of 1 to 5 μm.
6. The highly weatherable photochromic window film according to claim 1, wherein the first polyester film layer is a transparent PET base film, a magnetron base film, an aluminized base film, a carbon crystal base film or a primary color base film, and has a thickness of 12 to 200 μm.
7. The highly weatherable photochromic window film according to claim 1, wherein the photochromic layer is a photochromic acrylic pressure-sensitive adhesive layer or a photochromic polyurethane adhesive layer and has a thickness of 4 to 15 μm.
8. The photochromic window film with high weatherability as claimed in claim 1, wherein the release film is a PET release film, the release force is 10-40 g, and the thickness is 10-100 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921561848.6U CN211896766U (en) | 2019-09-19 | 2019-09-19 | High-weather-resistance photosensitive color-changing window film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921561848.6U CN211896766U (en) | 2019-09-19 | 2019-09-19 | High-weather-resistance photosensitive color-changing window film |
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| CN211896766U true CN211896766U (en) | 2020-11-10 |
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| CN201921561848.6U Active CN211896766U (en) | 2019-09-19 | 2019-09-19 | High-weather-resistance photosensitive color-changing window film |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112708367A (en) * | 2020-12-22 | 2021-04-27 | 凯鑫森(上海)功能性薄膜产业有限公司 | Scratch-resistant anti-dazzle color-changing adhesive film and preparation method thereof |
| CN112940632A (en) * | 2020-11-26 | 2021-06-11 | 江苏双星彩塑新材料股份有限公司 | Prevent visible light shortwave damage window membrane |
-
2019
- 2019-09-19 CN CN201921561848.6U patent/CN211896766U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112940632A (en) * | 2020-11-26 | 2021-06-11 | 江苏双星彩塑新材料股份有限公司 | Prevent visible light shortwave damage window membrane |
| CN112940632B (en) * | 2020-11-26 | 2021-12-10 | 江苏双星彩塑新材料股份有限公司 | Prevent visible light shortwave damage window membrane |
| CN112708367A (en) * | 2020-12-22 | 2021-04-27 | 凯鑫森(上海)功能性薄膜产业有限公司 | Scratch-resistant anti-dazzle color-changing adhesive film and preparation method thereof |
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