CN219055612U - Infrared shielding adhesive film and laminated glass - Google Patents
Infrared shielding adhesive film and laminated glass Download PDFInfo
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- CN219055612U CN219055612U CN202223091059.5U CN202223091059U CN219055612U CN 219055612 U CN219055612 U CN 219055612U CN 202223091059 U CN202223091059 U CN 202223091059U CN 219055612 U CN219055612 U CN 219055612U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The utility model relates to the technical field of laminated glass, in particular to an infrared shielding adhesive film and laminated glass, which comprise an infrared blocking layer and an ultraviolet blocking layer, wherein the blocking rate of the ultraviolet blocking layer to ultraviolet rays with the wavelength of 380-400nm is more than or equal to 95%. The method can solve the problem that the laminated glass using the tungsten oxide/composite tungsten oxide can be locally discolored.
Description
Technical Field
The utility model relates to the technical field of adhesive films, in particular to an infrared shielding adhesive film and laminated glass.
Background
Glass used in automobiles, particularly windshields, is usually selected from laminated glass in which a transparent adhesive resin layer, typically a PVB layer, an EVA layer, or the like, is sandwiched between two glass sheets, and the adhesive resin layer improves penetration resistance of the laminated glass and is excellent in safety.
When sunlight penetrates through glass and enters the automobile, infrared rays in the sunlight can cause the temperature in the automobile to rise, so that the energy consumption of the air conditioner is increased. In the related art, an infrared blocking layer is formed by adding a nano-sized inorganic metal oxide into an adhesive resin layer, so as to achieve the effects of absorbing infrared rays and blocking radiant heat. Among them, tungsten oxide/composite tungsten oxide is a commonly used inorganic metal oxide, which has good infrared absorption properties. However, the tungsten oxide/composite tungsten oxide is deteriorated by irradiation of sunlight, particularly ultraviolet rays, for a long time to become blue, resulting in a localized discoloration phenomenon of the laminated glass, affecting the service performance thereof.
Disclosure of Invention
In order to solve the problem that the laminated glass using tungsten oxide/composite tungsten oxide can be locally discolored, the application provides an infrared shielding adhesive film and the laminated glass.
In a first aspect, the present application provides an infrared shielding film, which adopts the following technical scheme:
an infrared shielding adhesive film comprises an infrared blocking layer and an ultraviolet blocking layer, wherein the blocking rate of the ultraviolet blocking layer to ultraviolet rays with the wavelength of 380-400nm is more than or equal to 95%.
By adopting the technical scheme, the infrared blocking layer can achieve the effect of blocking infrared rays and radiant heat, the blocking rate of the ultraviolet blocking layer to ultraviolet rays with the wavelength of 380-400nm is more than or equal to 95%, the influence of the ultraviolet rays on tungsten oxide/composite tungsten oxide in the infrared blocking layer can be reduced, and the color change of the infrared blocking layer caused by ultraviolet ray absorption is avoided, so that the problem that the laminated glass using the tungsten oxide/composite tungsten oxide can be locally color-changed is solved.
Optionally, the infrared barrier layer (2) is free of ultraviolet absorbers.
Optionally, the thickness ratio of the ultraviolet blocking layer to the infrared blocking layer is 1 (0.5-10).
By adopting the technical scheme, the thickness ratio of the ultraviolet blocking layer to the infrared blocking layer is moderate, and the adhesive film has good ultraviolet blocking performance and infrared blocking performance.
Optionally, the infrared shielding adhesive film comprises at least one ultraviolet blocking EVA layer and at least one infrared blocking EVA layer.
Optionally, the main materials of the ultraviolet blocking EVA layer and the infrared blocking EVA layer are linear EVA.
Optionally, the infrared shielding adhesive film includes a first ultraviolet blocking EVA layer and an infrared blocking EVA layer that are sequentially connected.
Through adopting above-mentioned technical scheme, the separation effect of the first ultraviolet separation EVA layer that links to each other in proper order with infrared separation EVA layer to the ultraviolet is better, has further reduced the influence of ultraviolet to tungsten oxide/compound tungsten oxide in the infrared separation EVA layer, avoids infrared separation layer to discolour because of absorbing the ultraviolet.
Optionally, the infrared shielding adhesive film includes a first ultraviolet blocking EVA layer, an infrared blocking EVA layer and a second ultraviolet blocking EVA layer which are sequentially connected, and the infrared blocking EVA layer is sandwiched between the first ultraviolet blocking EVA layer and the second ultraviolet blocking EVA layer.
Through adopting above-mentioned technical scheme, under the combined action of first ultraviolet separation EVA layer and second ultraviolet separation EVA layer, further promoted the glued membrane and to the barrier property of ultraviolet ray, avoid ultraviolet ray to lead to the fact the influence to the infrared separation EVA layer.
In a second aspect, the present application provides a laminated glass, which adopts the following technical scheme:
a laminated glass is characterized in that the infrared shielding adhesive film is clamped between two pieces of glass.
By adopting the technical scheme, the infrared shielding adhesive film is clamped between two pieces of glass, and the prepared laminated glass has good infrared blocking performance and ultraviolet blocking performance and is not easy to generate local color change.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the infrared shielding adhesive film comprises an infrared barrier layer and an ultraviolet barrier layer, wherein the barrier rate of the ultraviolet barrier layer to ultraviolet rays with the wavelength of 380-400nm is more than or equal to 95%, the ultraviolet barrier layer can reduce the influence of the ultraviolet rays on tungsten oxide/composite tungsten oxide in the infrared barrier layer, and the problem of color change of the infrared barrier layer caused by ultraviolet absorption is avoided, so that the problem that laminated glass using the tungsten oxide/composite tungsten oxide can be subjected to local color change is solved;
2. the thickness ratio of the ultraviolet barrier layer to the infrared barrier layer is 1 (0.5-10), the thickness ratio is moderate, and the adhesive film has good ultraviolet barrier property and infrared barrier property;
3. the infrared shielding adhesive film comprises a first ultraviolet blocking EVA layer, an infrared blocking EVA layer and a second ultraviolet blocking EVA layer which are sequentially connected, wherein the infrared blocking EVA layer is clamped between the two ultraviolet blocking EVA layers. Under the combined action of the first ultraviolet blocking EVA layer and the second ultraviolet blocking EVA layer, the blocking performance of the adhesive film to ultraviolet rays is further improved, and the influence of ultraviolet rays on the infrared blocking EVA layer is avoided.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of the present application.
Fig. 2 is a schematic structural view of embodiment 2 of the present application.
Fig. 3 is a schematic structural view of embodiment 3 of the present application.
Fig. 4 is a schematic structural view of the laminated glass of the present application.
Reference numerals illustrate: 1. an ultraviolet blocking layer; 11. a first ultraviolet blocking EVA layer; 12. a second ultraviolet blocking EVA layer; 2. an infrared barrier layer; 4. a first glass; 5. an infrared shielding adhesive film; 6. and a second glass.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-4.
The embodiment of the application discloses an infrared shielding adhesive film.
Example 1
Referring to FIG. 1, an infrared shielding adhesive film comprises an infrared barrier layer 2 and an ultraviolet barrier layer 1, wherein the barrier rate of the ultraviolet barrier layer 1 to ultraviolet rays with the wavelength of 380-400nm is more than or equal to 95%.
Referring to fig. 1, a tungsten oxide/composite tungsten oxide is added in an infrared barrier layer 2, the tungsten oxide/composite tungsten oxide has good infrared absorption performance, the infrared barrier layer 2 added with the tungsten oxide/composite tungsten oxide is arranged in laminated glass, the effects of absorbing infrared rays and blocking radiant heat can be achieved, and the infrared barrier layer 2 does not contain an ultraviolet absorber; the host material of the infrared barrier layer 2 includes, but is not limited to, linear EVA, which is selected in this embodiment.
Referring to fig. 1, an ultraviolet absorber including but not limited to benzophenone, salicylic acid esters, benzotriazole, benzotriazine and organonickel polymer is added to the ultraviolet blocking layer 1, 2- (3 ',5' -bis (1, 1-dimethylbenzyl) -2' -hydroxyphenyl) benzotriazole is selected in this example, and the main material of the ultraviolet blocking layer 1 includes but not limited to linear EVA.
Referring to fig. 1, the thickness ratio of the ultraviolet barrier layer 1 to the infrared barrier layer 2 is 1 (0.5-10), in this range, the thickness ratio of the ultraviolet barrier layer 1 to the infrared barrier layer 2 is moderate, and the adhesive film has good ultraviolet barrier performance and infrared barrier performance, and in this embodiment, the thickness ratio of the ultraviolet barrier layer 1 to the infrared barrier layer 2 is 1:1. The infrared shielding adhesive film comprises at least one ultraviolet blocking EVA layer and at least one infrared blocking EVA layer.
Referring to fig. 1, in this embodiment, the infrared blocking layer 2 is an infrared blocking EVA layer, the ultraviolet blocking layer 1 is an ultraviolet blocking EVA layer, and the ultraviolet blocking EVA layer and the infrared blocking EVA layer are sequentially connected, so that the blocking effect of the ultraviolet blocking EVA layer on ultraviolet rays is enhanced, the ultraviolet blocking EVA layer is disposed on one side close to the incident ray of sunlight, and can absorb ultraviolet rays, reduce the influence of ultraviolet rays on tungsten oxide/composite tungsten oxide in the infrared blocking EVA layer, and avoid the local color change phenomenon of the adhesive film.
The implementation principle of the embodiment 1 is as follows: the ultraviolet blocking EVA layer and the infrared blocking EVA layer are co-extruded by a double-layer co-extrusion process to obtain the infrared shielding adhesive film, and the infrared shielding adhesive film added with the tungsten oxide/composite tungsten oxide has infrared blocking performance and is not easy to generate local color change under the combined action of the infrared blocking EVA layer and the ultraviolet blocking EVA layer.
Example 2
Example 3
Embodiment 3 of the present application is different from embodiment 1 in that, referring to fig. 3, in this embodiment, the ultraviolet blocking layer 1 includes a first ultraviolet blocking EVA layer 11 and a second ultraviolet blocking EVA layer 12, the infrared blocking EVA layer 2 is an infrared blocking EVA layer, the infrared blocking EVA layer is sandwiched between the first ultraviolet blocking EVA layer 11 and the second ultraviolet blocking EVA layer 12, the first ultraviolet blocking EVA layer 11 and the second ultraviolet blocking EVA layer 12 are tightly combined with the infrared blocking EVA layer, the first ultraviolet blocking EVA layer 11 is disposed at a side close to the incident light of sunlight, the first ultraviolet blocking EVA layer 11 can absorb ultraviolet rays, the influence of the ultraviolet rays on tungsten oxide/composite tungsten oxide in the infrared blocking EVA layer is reduced, the second ultraviolet blocking EVA layer 12 may play an anti-reflection role, the light reflected to the infrared blocking EVA layer is reduced, and the influence of the ultraviolet rays on the tungsten oxide/composite tungsten oxide in the infrared blocking EVA layer is reduced. Under the combined action of the first ultraviolet blocking EVA layer 11 and the second ultraviolet blocking EVA layer 12, the ultraviolet blocking performance of the adhesive film is further improved, so that the adhesive film added with the tungsten oxide/composite tungsten oxide has good infrared blocking performance and is not easy to generate local color change.
The implementation principle of the embodiment 3 is as follows: and co-extruding the first ultraviolet blocking EVA layer 11, the infrared blocking EVA layer and the second ultraviolet blocking EVA layer 12 by using a three-layer co-extrusion process to obtain the infrared shielding adhesive film.
Application example
The application example of the application discloses laminated glass.
Application example 1
The laminated glass, referring to fig. 4, comprises a first glass 4, an infrared shielding film 5 and a second glass 6 which are arranged in sequence, wherein the infrared shielding film 5 is selected from the embodiment 1.
Application example 2
The laminated glass is different from application example 1 in that, referring to fig. 4, an infrared shielding film 5 is selected from example 2.
Application example 3
The laminated glass is different from application example 1 in that, referring to fig. 4, an infrared shielding film 5 is selected from example 3.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (8)
1. An infrared shielding adhesive film is characterized in that: comprises an infrared barrier layer (2) and an ultraviolet barrier layer (1), wherein the barrier rate of the ultraviolet barrier layer (1) to ultraviolet rays with the wavelength of 380-400nm is more than or equal to 95 percent.
2. The infrared shielding film according to claim 1, wherein: the infrared barrier layer (2) does not contain an ultraviolet absorber.
3. The infrared shielding film according to claim 1, wherein: the thickness ratio of the ultraviolet barrier layer (1) to the infrared barrier layer (2) is 1 (0.5-10).
4. An infrared shielding film according to claim 3, wherein: the infrared shielding adhesive film (5) comprises at least one ultraviolet blocking EVA layer and at least one infrared blocking EVA layer.
5. The infrared shielding film according to claim 4, wherein: the main materials of the ultraviolet blocking EVA layer and the infrared blocking EVA layer are linear EVA.
6. The infrared shielding film according to claim 5, wherein: the infrared shielding adhesive film (5) comprises an ultraviolet blocking EVA layer and an infrared blocking EVA layer which are sequentially connected.
7. The infrared shielding film according to claim 5, wherein: the infrared shielding adhesive film (5) comprises a first ultraviolet blocking EVA layer (11), an infrared blocking EVA layer and a second ultraviolet blocking EVA layer (12) which are sequentially connected, and the infrared blocking EVA layer is clamped between the first ultraviolet blocking EVA layer (11) and the second ultraviolet blocking EVA layer (12).
8. Laminated glass, its characterized in that: an infrared shielding film (5) according to any one of claims 1 to 7 is sandwiched between two pieces of glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223091059.5U CN219055612U (en) | 2022-11-17 | 2022-11-17 | Infrared shielding adhesive film and laminated glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223091059.5U CN219055612U (en) | 2022-11-17 | 2022-11-17 | Infrared shielding adhesive film and laminated glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219055612U true CN219055612U (en) | 2023-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223091059.5U Active CN219055612U (en) | 2022-11-17 | 2022-11-17 | Infrared shielding adhesive film and laminated glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219055612U (en) |
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2022
- 2022-11-17 CN CN202223091059.5U patent/CN219055612U/en active Active
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