Ultrahigh-reflection flexible film, light-transmitting assembly, frame structure and device

Abstract

The invention discloses an ultrahigh-reflection flexible film, a light-transmitting assembly, a frame structure and a device. The ultrahigh-reflection flexible film comprises a base material layer, and a lower priming coat, a lower IM layer and a high-temperature protective film are sequentially formed on one side of the base material layer; an upper priming coat, an upper IM layer, a priming coat, a metal aluminum layer, an yttrium oxide layer and an AF layer are sequentially formed on the other side of the base material layer; wherein the base layer, the metal aluminum layer and the niobium trioxide layer are plated, and the thickness of the metal aluminum layer is 15-150 nm. The composite film is simple in structure, the smoothness of the surface of the plating layer is enhanced by optimizing the layer structure, meanwhile, the environmental erosion resistance is good, the service life can be prolonged, the product is not prone to being contaminated by dust, and the cleanliness is kept for a long time.

Description

Technical Field

[0001] The present invention belongs to the technical field of composite materials, and in particular relates to an ultra-high reflective flexible film, a light-transmitting component, a frame structure and a device. Background Art

[0002] High reflective film is an important optical film with a very wide range of applications. In most cases, the requirement for the reflective film is that the reflectivity within the working spectrum is as high as possible. In some special occasions, not only the reflectivity is required to be very high, but also the absorption of the film is required to be very small, because the projected light is still useful. It has the effects of sun protection, heat insulation, UV protection, energy saving and cooling. It is mostly used in building glass, etc. The film layer, as the outermost layer, needs to face long-term wind and sun, wind and rain erosion during long-term use, and is prone to surface damage, which affects the use effect.

[0003] Therefore, in order to solve the above technical problems, it is necessary to provide an ultra-high reflective flexible film, a light-transmitting component, a frame structure and a device.

[0004] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0005] The object of the present invention is to provide an ultra-high reflective flexible film, a light-transmitting component, a frame structure and a device.

[0006] In order to achieve the above object, a technical solution provided by a specific embodiment of the present invention is as follows:

[0007] Ultra-high reflective flexible film, comprising a substrate layer,

[0008] A lower primer layer, a lower IM layer, and a high temperature protective film are sequentially formed on one side of the substrate layer;

[0009] An upper primer layer, an upper IM layer, a primer layer, a metal aluminum layer, a yttrium oxide layer and an AF layer are sequentially formed on the other side of the substrate layer;

[0010] The base layer, the metal aluminum layer and the niobium oxide layer are all plated, and the thickness of the metal aluminum layer is 15-150nm.

[0011] In one or more embodiments of the present invention, the substrate is selected from: a PET layer, a transparent PI layer, a TAC layer, a COP layer or a PC layer.

[0012] In one or more embodiments of the present invention, the substrate layer has a thickness of 5.7-250 μm.

[0013] In one or more embodiments of the present invention, the raw material of the base layer is selected from: SiO2, Ti, TiO2, Si, MgF2, SiO.

[0014] In one or more embodiments of the present invention, the thickness of the primer layer is 2-30 nm.

[0015] In one or more embodiments of the present invention, the thickness of the niobium oxide layer is 1-30 nm.

[0016] In one or more embodiments of the present invention, the upper IM layer and / or the lower IM layer is obtained by coating with a low-refractive acrylic resin coating liquid.

[0017] In one or more embodiments of the present invention, a light-transmitting component includes a light-transmitting body (such as window glass, etc.) and an ultra-high reflective flexible film arranged on the light-transmitting body.

[0018] In one or more embodiments of the present invention, a frame structure includes a frame having a window and a light-transmitting component matched to the window.

[0019] In one or more embodiments of the present invention, the device includes a main body and a mounting position formed on the main body, and a frame structure is installed to match the mounting position. It should be noted that the device here includes but is not limited to main facilities with window structures such as buildings and vehicles.

[0020] Compared with the prior art, the ultra-high reflective flexible film, light-transmitting component, frame structure and device of the present invention can be widely used in building curtain wall glass film, and the reflection can be between 80-95%, similar to a mirror, with a high reflective effect, and can effectively reduce the heat generated by sunlight. The middle layer is an yttrium oxide layer, which has the advantages of heat resistance, corrosion resistance, and fire resistance, and the surface layer is coated with a layer of AF coating liquid, which can enhance the smoothness of the coating surface and increase the service life, making the product less likely to be contaminated with dust and maintaining long-term cleanliness. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the structure of an ultra-high reflective flexible film in one embodiment of the present invention;

[0023] Figure 2 This is a comparison diagram of the curves before and after boiling of the ultra-high reflective flexible film in one embodiment of the present invention;

[0024] Figure 3 It is a comparison chart of the reflectance performance of samples in Example 1 and Comparative Example 1 of the present invention. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0026] like Figure 1 As shown, the ultra-high reflective flexible film in one embodiment of the present invention includes a substrate layer, the substrate can be a PET layer, a transparent PI layer, a TAC layer, a COP layer or a PC layer, the substrate layer has a thickness of 5.7-250 μm, and both sides of the substrate layer are provided with an upper primer layer and a lower primer layer respectively through a coating process, and an upper IM layer and a lower IM layer are provided on the upper primer layer and the lower primer layer respectively through a coating process, the upper IM layer and the lower IM layer are both low-refractive acrylic resin coating liquids, the upper IM layer coating thickness is 40-320 nm, and the lower IM layer coating thickness is 0.3-3.9 μm, and after coating, a 30-188 μm high-temperature protective film is attached to the lower IM layer to ensure that the film surface appearance is preserved during the magnetron sputtering coating process. In order to improve the protection and coating stability, a primer layer for increasing the adhesion of the bottom layer is plated on the upper IM layer by magnetron sputtering process. The thickness of the bottom layer (2-30nm) can be plated with SiO2 / Ti / TiO2 / Si / MgF2 / SiO, and a metal aluminum (Al) layer (15-150nm) for increasing reflection is plated on the primer layer. A yttrium oxide (Y2O3) layer (1-30nm) for enhancing the surface heat resistance, corrosion resistance and fire resistance is plated on the metal aluminum (Al) layer. After the magnetron coating, a layer of AF layer (2-190nm) with anti-oil, anti-fingerprint and anti-scratch is coated on the surface. It is mainly obtained by coating with perfluoropolyether coating, and the reflection can reach between 80-95%.

[0027] Example 1

[0028] The ultra-high reflective flexible film of the present embodiment comprises a substrate layer, the substrate is a PET layer, the substrate layer has a thickness of 5.7 μm, an upper primer layer and a lower primer layer are respectively provided on both sides of the substrate layer by a coating process, an upper IM layer and a lower IM layer are respectively provided on the upper primer layer and the lower primer layer by a coating process, the upper IM layer and the lower IM layer are both low-refractive acrylic resin coating liquid (commonly available commercial products can be selected arbitrarily, the same below), the upper IM layer has a coating thickness of 40 nm, the lower IM layer has a coating thickness of 0.3 μm, and after coating, the lower IM layer is bonded to the substrate layer for 30 μmPET high temperature protective film (the same below) is used to ensure the appearance protection and coating stability of the film surface during magnetron sputtering coating. A base layer is plated on the upper IM layer through magnetron sputtering process to increase the adhesion of the bottom layer. The thickness of the base layer is 2nm. The base layer is SiO2-plated. A 15nm metal aluminum layer is plated on the base layer to increase reflection. A 1nm yttrium oxide layer is plated on the metal aluminum layer to enhance the surface heat resistance, corrosion resistance and fire resistance. After the magnetron coating, a 2nm AF layer is coated on the surface to resist oil stains, fingerprints and scratches. The performance test of the samples in this embodiment is as follows: Boiled in water at 100℃ for 3-4h for verification, see Figure 2 .from Figure 2 It can be seen that the unified test method is to stick OCA glue on the back before the ring test and stick it on the black acrylic board. After sticking, use a degassing machine to degas. After degassing, wipe the surface clean and test it with an Olympus reflectivity meter. The reflection comparison is tested at 100℃ water temperature for 3-4h. There is no obvious change in 3-4h. The average reflection of 380-780nm before boiling is 89.69%, the average reflection after 3h boiling is 89.56%, and the average reflection after 4h boiling is 89.34%.

[0029] For a comparison of pencil hardness, see Table 1.

[0030]

[0031]

[0032] Table 1 Pencil hardness test As can be seen from Table 1, the unified test method is to stick OCA glue on the back and stick it on the transparent glass. After sticking, use a degassing machine to degas. After degassing, wipe the surface clean and use a pencil hardness tester to test the surface pencil hardness. The test requirements are to use pencils with different hardness under different loads, and draw 5 lines respectively. ≥3 lines are judged as qualified, and ≤2 lines are judged as NG. It can be seen from the above table that the pencil hardness under a load of 500g can reach 5H, which is basically OK, and the pencil hardness under a load of 750g can reach 3H, which is basically OK, and 4H is slightly worse. For flexible films, the overall hardness is already on the high side.

[0033] See Table 2 for a comparison of the wear resistance of steel wool.

[0034]

[0035] Table 2 Comparison of steel wool wear resistance As can be seen from Table 2, the unified test method is used, OCA glue is attached to the back and attached to the transparent glass. After attachment, the degassing machine is used to degas. After degassing, the surface is wiped clean, the coated surface faces up, the wear-resistant machine is loaded with a 1000g weight, and the wear-resistant head is fixed with Japanese Bonstar 0000# steel wool placed on the film surface. The stroke is 60mm long, and one back and forth grinding is one stroke. There is no scratch after 1000-3000 wear times, and it is judged to be OK; after 5000 wear times, 1 scratch appears, and the overall surface is better.

[0036] The comparison of the 100 grids in the ring test is shown in Table 3.

[0037]

[0038]

[0039] Table 3 Environmental Test Grids

[0040] As can be seen from Table 3, the unified test method is to paste OCA glue on the back before the ring test and paste it on the transparent glass. After the bonding, the degassing machine is used to degas. After degassing, the surface is wiped clean. The double 85 ring test (high temperature 85℃, high humidity 85%) is tested. Compared with 28 days, the average of 100 grids is 5B, and the existing solution is 2-3B in 35 days, indicating that the new solution is slightly better; test the resistance to sunlight (light 0.55w / (m 2 .nm), wavelength 340nm, filter Extended UV-Q / B, 3.8h of light + 1h of darkness as one cycle. The temperature of the blackboard during light exposure is set at 89℃, the temperature of the box is 63℃, and the humidity is 50%; the temperature of the box and blackboard is set at 38℃ and the humidity is 95% during the dark stage. All the environmental tests are 5B for 28-35 days, indicating that the environmental test performance is OK.

[0041] Example 2

[0042] The ultra-high reflective flexible film of this embodiment includes a substrate layer, the substrate is a PET layer, the substrate layer has a thickness of 250 μm, an upper primer layer and a lower primer layer are respectively provided on both sides of the substrate layer through a coating process, an upper IM layer and a lower IM layer are respectively provided on the upper primer layer and the lower primer layer through a coating process, the upper IM layer and the lower IM layer are both low-refractive acrylic resin coating liquids, the upper IM layer has a coating thickness of 320 nm, and the lower IM layer has a coating thickness of 3.9 μm, and a 188 μm high-temperature protective film is attached to the lower IM layer after coating. In order to ensure the protection of the film surface appearance and the stability of the coating during the magnetron sputtering coating process, a primer layer for increasing the adhesion of the bottom layer is plated on the upper IM layer by a magnetron sputtering process. The thickness of the primer layer is 30nm, and the primer layer is SiO2-plated primer. A 150nm metal aluminum layer for increasing reflection is plated on the primer layer. A 30nm yttrium oxide layer for enhancing the surface heat resistance, corrosion resistance, and fire resistance is plated on the metal aluminum layer. After the magnetron coating, a 190nm AF layer for anti-oil, anti-fingerprint, and anti-scratch is coated on the surface. The sample of this embodiment is tested under the same conditions as in Example 1, and also shows good hardness and wear resistance.

[0043] The comparison of the ring test of the samples in this embodiment is shown in Table 4:

[0044]

[0045] Example 3

[0046] The ultra-high reflective flexible film of this embodiment includes a substrate layer, the substrate is a PET layer, the substrate layer has a thickness of 150 μm, an upper primer layer and a lower primer layer are respectively provided on both sides of the substrate layer through a coating process, an upper IM layer and a lower IM layer are respectively provided on the upper primer layer and the lower primer layer through a coating process, the upper IM layer and the lower IM layer are both low-refractive acrylic resin coating liquids, the upper IM layer has a coating thickness of 120 nm, and the lower IM layer has a coating thickness of 1.9 μm, and a 100 μm high-temperature protective film is attached to the lower IM layer after coating. In order to ensure the protection of the film surface appearance and the stability of the coating during the magnetron sputtering coating process, a primer layer for increasing the adhesion of the bottom layer is plated on the upper IM layer by a magnetron sputtering process. The thickness of the primer layer is 10nm, and the primer layer is SiO2-plated primer. A 100nm metal aluminum layer for increasing reflection is plated on the primer layer. A 10nm yttrium trioxide layer for enhancing the surface heat resistance, corrosion resistance, and fire resistance is plated on the metal aluminum layer. After the magnetron coating, a 100nm AF layer for anti-oil, anti-fingerprint, and anti-scratch is coated on the surface. The sample of this embodiment was tested under the same conditions as in Example 1, and also showed good hardness and wear resistance.

[0047] The comparison of the ring test of the samples in this embodiment is shown in Table 5:

[0048]

[0049]

[0050] Example 4

[0051] The ultra-high reflective flexible film of this embodiment includes a substrate layer, the substrate is a transparent PI layer, the thickness of the substrate layer is 50μm, the upper primer layer and the lower primer layer are respectively provided on both sides of the substrate layer through a coating process, the upper primer layer and the lower primer layer are respectively provided with an upper IM layer and a lower IM layer through a coating process, the upper IM layer and the lower IM layer are both low-refractive acrylic resin coating liquids, the upper IM layer coating thickness is 120nm, the lower IM layer coating thickness is 1μm, after coating, an 80μm high-temperature protective film is attached to the lower IM layer to ensure the appearance protection of the film surface and the coating stability during the magnetron sputtering coating process, a primer layer for increasing the adhesion of the bottom layer is plated on the upper IM layer through a magnetron sputtering process, the primer layer thickness is 20nm, the primer layer is Ti-plated, a 50nm metal aluminum layer for increasing reflection is plated on the primer layer, a 15nm yttrium oxide layer for enhancing the surface heat resistance, corrosion resistance and fire resistance is plated on the metal aluminum layer, and a 20nm AF layer for anti-oil, anti-fingerprint and anti-scratch is coated on the surface after the magnetron coating. The samples of this embodiment were tested under the same conditions as those of embodiment 1 and also showed good hardness and wear resistance.

[0052] The comparison of the ring test of the samples in this embodiment is shown in Table 6:

[0053]

[0054] Example 5

[0055] The ultra-high reflective flexible film of this embodiment includes a substrate layer, the substrate is a PC layer, the thickness of the substrate layer is 50μm, the upper primer layer and the lower primer layer are respectively provided on both sides of the substrate layer through a coating process, the upper primer layer and the lower primer layer are respectively provided with an upper IM layer and a lower IM layer through a coating process, the upper IM layer and the lower IM layer are both low-refractive acrylic resin coating liquids, the upper IM layer coating thickness is 120nm, the lower IM layer coating thickness is 1μm, after coating, an 80μm high-temperature protective film is attached to the lower IM layer to ensure the appearance protection of the film surface and the coating stability during the magnetron sputtering coating process, a primer layer for increasing the adhesion of the bottom layer is plated on the upper IM layer through a magnetron sputtering process, the primer layer thickness is 20nm, the primer layer is MgF2-plated primer, a 50nm metal aluminum layer for increasing reflection is plated on the primer layer, a 15nm yttrium oxide layer for enhancing the surface heat resistance, corrosion resistance and fire resistance is plated on the metal aluminum layer, and a 20nm AF layer for resisting oil stains, fingerprints and scratches is coated on the surface after the magnetron coating. The samples of this embodiment were tested under the same conditions as those of embodiment 1 and also showed good hardness and wear resistance.

[0056] The comparison of the ring test of the samples in this embodiment is shown in Table 7:

[0057]

[0058] Comparative Example 1

[0059] The only difference between this comparative example and Example 1 is that there is no metal aluminum layer. Figure 3 As shown, the sample of Example 1 has a significant advantage in reflectivity compared with the sample of Comparative Example 1.

[0060] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0061] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An ultra-high reflective flexible film, comprising a substrate layer, A lower primer layer, a lower IM layer, and a high temperature protective film are sequentially formed on one side of the substrate layer; An upper primer layer, an upper IM layer, a primer layer, a metal aluminum layer, a yttrium oxide layer and an AF layer are sequentially formed on the other side of the substrate layer; The base layer, the metal aluminum layer and the niobium oxide layer are all plated, and the thickness of the metal aluminum layer is 15-150nm.

2. The ultra-high reflective flexible film according to claim 1, characterized in that: The substrate is selected from: a PET layer, a transparent PI layer, a TAC layer, a COP layer or a PC layer.

3. The ultra-high reflective flexible film according to claim 2, characterized in that: The substrate layer has a thickness of 5.7-250 μm.

4. The ultra-high reflective flexible film according to claim 1, characterized in that: The raw material of the bottom layer is selected from: SiO2, Ti, TiO2, Si, MgF2, and SiO.

5. The ultra-high reflective flexible film according to claim 4, characterized in that: The thickness of the primer layer is 2-30 nm.

6. The ultra-high reflective flexible film according to claim 1, characterized in that: The thickness of the niobium oxide layer is 1-30 nm.

7. The ultra-high reflective flexible film according to claim 1, characterized in that: The upper IM layer and / or the lower IM layer is obtained by coating with a low-refractive acrylic resin coating liquid.

8. A light-transmitting component, comprising a light-transmitting body and the ultra-high reflective flexible film according to any one of claims 1 to 7 arranged on the light-transmitting body.

9. A frame structure comprising a frame having a window, and the light-transmitting component according to claim 8 matched to the window.

10. A device comprising a main body and a mounting position formed on the main body, wherein the frame structure according to claim 9 is matchedly mounted on the mounting position.

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