CN210467860U - High-water-resistance transparent sheet - Google Patents
High-water-resistance transparent sheet Download PDFInfo
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- CN210467860U CN210467860U CN201921464612.0U CN201921464612U CN210467860U CN 210467860 U CN210467860 U CN 210467860U CN 201921464612 U CN201921464612 U CN 201921464612U CN 210467860 U CN210467860 U CN 210467860U
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Abstract
The utility model provides a high resistant transparent sheet that catchments, includes transparent surface film layer, transparent glue film layer, transparent water-blocking layer and transparent substrate layer, transparent glue film layer is located transparent surface film layer with between the transparent water-blocking layer, transparent water-blocking layer is located transparent glue film layer with between the transparent substrate layer, one side of transparent water-blocking layer with the laminating of transparent glue film layer, transparent water-blocking layer's opposite side with the laminating of transparent substrate layer, transparent water-blocking layer ratio transparent substrate layer is more close to the air side.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a solar cell field, concretely relates to high resistant water transparent sheet.
[ background of the invention ]
In the solar cell module, the front plate and the back plate mainly have the functions of isolating air and water vapor from permeating into the cell module and protecting the solar cell. Most of the current common solar front panels and back panels are glass components, glass has the advantages of good insulating property, low water vapor transmittance and the like, but due to the development of the photovoltaic industry, the front panel made of glass is heavy in weight and easy to be damaged by impact, and the front panel made of glass needs to be replaced. The sheet mainly made of organic materials has the advantages of light weight, difficulty in being damaged by impact and the like, but the water resistance of the front plate/back plate of the existing sheet mainly made of organic materials needs to be improved so as to prolong the service life of the solar cell module.
[ Utility model ] content
An object of the utility model is to provide a high resistant water transparent sheet, this sheet can be used to solar module's front bezel, backplate.
In order to realize the purpose, the following technical scheme is adopted: a high-water-resistance transparent sheet comprises a transparent surface film layer, a transparent adhesive layer, a transparent water-resistant layer and a transparent substrate layer from outside to inside, wherein the transparent adhesive layer is positioned between the transparent surface film layer and the transparent water-resistant layer, the transparent water-resistant layer is positioned between the transparent adhesive layer and the transparent substrate layer, one side of the transparent water-resistant layer is attached to the transparent adhesive layer, the other side of the transparent water-resistant layer is attached to the transparent substrate layer, the transparent water-resistant layer is positioned on the outer side of the transparent substrate layer, and the transmittance of the transparent surface film layer to light with the wavelength of 380-1100nm is more than 80%.
In one embodiment, the transparent mask layer is a single-layer film, the thickness of the transparent mask layer is 5-100 micrometers, and the transparent mask layer is one of PVDF, PVF, ETFE, and ECTFE film layers.
In one embodiment, the transparent mask layer is two or more layers, the thickness of the transparent mask layer is 5 to 100 micrometers, and the transparent mask layer is a PVDF layer.
In one embodiment, the transparent mask layer has a transmittance of 85% or more with respect to light having a wavelength of 380-1100 nm.
In one embodiment, the transparent water-resistant layer has a thickness of 1 μm or less and a water vapor transmission rate of 10 or less0g/m2*d。
In one embodiment, the transparent water-resistant layer has a thickness of 1 μm or less and a water vapor transmission rate of 10 or less-1g/m2*d。
As an implementation mode, the thickness of the transparent adhesive layer is 2-25 micrometers, the thickness of the transparent surface film layer is 20-50 micrometers, the thickness of the transparent water-blocking layer is 10-500 nanometers, and the water vapor transmission rate of the transparent water-blocking layer is equal to 10 in light rain-3g/m2*d。
As an embodiment, the transparent adhesive layer is made of at least one of an acrylic adhesive, a polyurethane adhesive, an epoxy adhesive, and an ethylene-vinyl acetate adhesive.
As an implementation mode, the transparent substrate layer is a transparent PET substrate layer or a transparent PP substrate layer, or a transparent PC substrate layer, or a transparent PBT substrate layer, or a transparent COC substrate layer, or a transparent TPX substrate layer, or a transparent PMMA substrate layer, the thickness of the transparent substrate layer is 40-280 micrometers, the thickness range of the transparent water-resistant layer is 10-500 nanometers, and the water vapor transmittance of the transparent water-resistant layer is less than or equal to 10-4g/m2*d。
In one embodiment, the transparent surface film layer includes a surface layer first fluorine film layer, a surface layer intermediate layer and a surface layer second fluorine film layer, and the surface layer intermediate layer is located on the surface layer first fluorine film layerThe layer with between the surface course second fluorine rete, the surface course second fluorine rete is located the surface course intermediate level with between the first transparent glue layer, the thickness more than or equal to in surface course intermediate level the thickness of the first fluorine rete of surface course, the thickness more than or equal to in surface course intermediate level the thickness of the surface course second fluorine rete, the thickness more than or equal to 100 microns of transparent sheet, the thickness more than or equal to 10 microns in transparent surface course layer, the thickness more than or equal to 5 microns in transparent basement rete, the surface course intermediate level comprises the membrane that includes PVDF and reinforcing resin, the thickness of the first fluorine rete of surface course with the thickness ratio in surface course intermediate level is (0.5-1.5): (2-5), the ratio of the thickness of the surface layer middle layer to the thickness of the surface layer second fluorine film layer is (2-5): (0.25-1.5), the light transmittance of the high water-resistant transparent sheet relative to light of 380-1100nm is more than or equal to 85%, and the water vapor transmittance of the transparent water-resistant layer is less than or equal to 10-6g/m2*d
Above-mentioned technical scheme, high water-resistant sheet includes transparent surface film layer, transparent glue film layer, transparent water-blocking layer and transparent substrate layer, and wherein, transparent surface film layer has the weatherability, and transparent glue film layer bonds transparent surface film layer and transparent water-blocking layer as an organic whole, and transparent water-blocking layer has the effect of blocking water, and transparent water-blocking layer can bond transparent glue film layer and transparent substrate layer as an organic whole, consequently, high water-resistant transparent sheet structure as an organic whole. When this high water-resistant sheet uses, transparent water-resistant layer is located the outside of transparent substrate layer, can be with most steam separation to protect transparent substrate layer, thereby make in this high water-resistant sheet use, reduce because of transparent substrate layer absorbs steam and solar module breaks down probably, thereby be favorable to prolonging the life of this high water-resistant transparent sheet's solar module.
[ description of the drawings ]
FIG. 1 illustrates one embodiment of a high water-blocking transparent sheet;
fig. 2 illustrates another embodiment of a high water blocking transparent sheet.
[ detailed description ] embodiments
A high water-resistant transparent sheet comprises a transparent surface film layer 1, a transparent adhesive layer 2, a transparent water-resistant layer 3 and a transparent substrate layer 4 from outside to inside, the transparent glue layer 2 is positioned between the transparent surface film layer 1 and the transparent water-resistant layer 3, the transparent water-resistant layer 3 is positioned between the transparent glue layer 2 and the transparent substrate layer 4, one side of the transparent water-resistant layer 3 is attached to the transparent adhesive layer 2, the other side of the transparent water-resistant layer 3 is attached to the transparent substrate layer 4, the transparent water-resistant layer 3 is positioned at the outer side of the transparent substrate layer 4, the transmittance of the transparent surface film layer 1 to light with the wavelength of 380-1100nm is more than 80 percent, wherein, the outer side is the side close to the air, and the transparent water-resistant layer 3 positioned on the outer side of the transparent substrate layer 4 is the side close to the air of the transparent water-resistant layer 3 than the transparent substrate layer 4 when the high water-resistant transparent sheet is used; or, when the high water-resistant transparent sheet works in the photovoltaic module, the transparent water-resistant layer 3 is farther away from the cell than the transparent substrate layer 4; or, when the high water-resistant transparent sheet works in the photovoltaic module, the transparent substrate layer 4 is closer to the cell than the transparent water-resistant layer 3; or, when the high water-resistant transparent sheet works in the photovoltaic module, the transparent water-resistant layer 3 can prevent most of water/water vapor penetrating through the transparent surface film layer 1 and the transparent adhesive layer 2 from penetrating through the transparent water-resistant layer 3 and entering the transparent substrate layer 4; or, the transparent water-blocking layer 3 can block most of the water/water vapor which penetrates through the transparent surface film layer 1 and the transparent adhesive layer 2 at the side of the transparent water-blocking layer 3 far away from the transparent substrate layer 4, so that the most of the water/water vapor can not reach the transparent substrate layer 4. Transparent substrate layer 4 plays the effect of insulation protection to the battery piece, water/steam is very big to transparent substrate layer 4's influence, and when water/steam in transparent substrate layer 4 reached the certain degree, transparent substrate layer 4 can not play the effect of insulation and protection to the battery piece, causes photovoltaic module's damage easily, consequently, the in-process that photovoltaic module used, the water/steam that can reach transparent substrate layer 4 is less, and is more favourable to photovoltaic module's life. The utility model provides a transparent sheet of high resistant water, transparent water blocking layer 3 is located the outside of transparent substrate layer 4, is located transparent substrate layer inboard with transparent water blocking layer and compares, and transparent water blocking layer 3 is located the outside of transparent substrate layer 4 and more is favorable to reducing water/steam and gets into transparent substrate layer 4 to more be favorable to photovoltaic module's life extension. The transmittance of the transparent mask layer 1 to light with the wavelength of 380-1100nm is over 80 percent, so that certain light can reach the cell, and the phenomenon of low power generation efficiency of the photovoltaic module caused by the light impermeability of the transparent mask layer 1 is reduced.
Referring to fig. 1, the transparent mask layer 1 is a single-layer film, the transparent mask layer 1 is one of PVDF (polyvinylidene fluoride), PVF (polyvinyl fluoride), ETFE (ethylene-tetrafluoroethylene copolymer), ECTFE (ethylene-chlorotrifluoroethylene 1:1 alternating copolymer) film, and the transparent mask layer 1 has the functions of salt fog resistance, ultraviolet aging resistance, chemical corrosion resistance, and the like, and has a protection effect on the high water resistance transparent sheet. Generally, the thickness of the transparent mask layer 1 is 5 to 100 micrometers, and more specifically, the thickness of the transparent mask layer is 25 to 100 micrometers.
The high-water-resistance transparent sheet can be used as a front plate, a back plate and the like of the photovoltaic module, and when the high-water-resistance transparent sheet is used for the front plate of the photovoltaic module, the weight of the photovoltaic module is favorably reduced, so that the photovoltaic module is light in weight. In order to facilitate the power generation efficiency of the photovoltaic module, the transmittance of the high water-resistant transparent sheet material relative to the light with the wavelength of 380-.
Referring to fig. 1, the high water-resistant transparent sheet includes a transparent water-resistant layer 3, the thickness of the transparent water-resistant layer 3 is less than or equal to 1 micron, and the water vapor transmission rate of the transparent water-resistant layer 3 is less than or equal to 10-0/m2D. Transparent water blocking layer 3 has the effect of hindering water/steam, can be with most water/steam separation in its one side that is close to transparent adhesive layer 2, consequently can reduce transparent substrate layer 4 because of the possibility of the damage that water/steam caused, compare with the high water blocking transparent sheet that does not set up transparent water blocking layer, the high water blocking transparent sheet of this application has set up transparent water blocking layer and has been favorable to prolonging the life of this high water blocking transparent sheet, and then can prolong the life of this high water blocking transparent sheet's photovoltaic module. As an embodiment, the transparent water-resistant layer 3 has a water vapor transmission rate of 10 or less-1/m2D. As an embodiment, the transparent water-resistant layer 3 has a water vapor transmission rateLess than or equal to 10-2/m2D; as an embodiment, the transparent water-resistant layer 3 has a water vapor transmission rate of 10 or less-3/m2D; as an embodiment, the transparent water-resistant layer 3 has a water vapor transmission rate of 10 or less-4/m2D; as an embodiment, the transparent water-resistant layer 3 has a water vapor transmission rate of 10 or less-5/m2D; as an embodiment, the transparent water-resistant layer 3 has a water vapor transmission rate of 10 or less-6/m2D; the smaller the water vapor transmission rate of the transparent water-resistant layer 3 is, the more favorable the possibility that water/water vapor reaches the transparent substrate layer 4 is reduced, so that the longer the service life of the photovoltaic module is; or, in a certain age, the power generation efficiency of the photovoltaic module is facilitated.
The high-water-resistance transparent sheet comprises a transparent adhesive layer 2, wherein the transparent adhesive layer 2 is made of at least one of acrylic adhesive, polyurethane adhesive, epoxy resin adhesive and ethylene-vinyl acetate adhesive, and the thickness of the transparent adhesive layer 2 is 2-25 micrometers. In one embodiment, the thickness ratio of the transparent surface film layer 1 to the transparent glue layer 2 is 0.2-50, and the thickness ratio of the transparent glue layer 2 to the transparent water-resistant layer 3 is 0.01-2500.
The high-water-resistance transparent sheet comprises a transparent substrate layer 4, wherein the transparent substrate layer 4 can be one or more of a transparent PET substrate layer, a transparent PP substrate layer, a transparent PC substrate layer, a transparent PBT substrate layer, a transparent COC substrate layer, a transparent TPX substrate layer and a transparent PMMA substrate layer, wherein PET refers to terephthalic acid, PP refers to polypropylene, PC refers to polycarbonate, PBT refers to polybutylene terephthalate, COC refers to TPX refers to poly-4-methyl-1-pentene, and PMMA refers to polymethyl methacrylate. The above kinds of transparent substrate layers shall mean transparent substrate layers mainly composed of the above materials, and not merely mean that only the above kinds of materials are contained in the transparent substrate layers. In order to ensure the insulating function of the transparent substrate layer 4, the thickness of the transparent substrate layer 4 is greater than or equal to 40 micrometers. The main role of the transparent substrate layer 4 in the solar cell system is an insulating role, and the thickness of the transparent substrate layer 4 is related to the breakdown voltage, specifically, the thickness of the transparent substrate layer is equal to or greater than 30 micrometers, more specifically, the thickness of the transparent substrate layer 4 is 30 to 290 micrometers, and more specifically, the thickness of the transparent substrate layer 4 is 40 to 280 micrometers. More specifically, the thickness of the transparent base material layer 3 is 100 μm or more.
The transparent surface film layer may be two or more film layers, and the two or more film layers are PVDF film layers, wherein the PVDF film layer in the whole text refers to a film layer using PVDF as a main material, and the film layer may not only include PVDF. Referring to fig. 2, fig. 2 shows another embodiment of the high water-resistant transparent sheet. In the embodiment shown in fig. 2, the transparent surface film layer 1 'is a three-layer PVDF film layer, and specifically, the high water-resistance transparent sheet includes a transparent surface film layer 1', a transparent adhesive layer 2 ', a transparent water-resistant layer 3', and a transparent substrate layer 4 ', where the transparent adhesive layer 2', the transparent water-resistant layer 3 ', and the transparent substrate layer 4' are the same as the transparent adhesive layer 2, the transparent water-resistant layer 3, and the transparent substrate layer 4 in the embodiment shown in fig. 1, and will not be described here. The transparent surface film layer 1 ' comprises a surface layer first fluorine film layer 11 ', a surface layer middle layer 12 ' and a surface layer second fluorine film layer 13 ', wherein the surface layer middle layer 12 ' is positioned between the surface layer first fluorine film layer 11 ' and the surface layer second fluorine film layer 13 ', and the surface layer second fluorine film layer 13 ' is positioned between the surface layer middle layer and the transparent glue layer 2 '. The surface layer first fluorine film layer 11 'is mainly composed of a fluorine-containing resin, for example, the surface layer first fluorine film layer 11' is composed of a film layer including PVDF, and the content of PVDF is 90% or more. The first fluorine rete 11 ' of surface course is located the outside of high resistant water transparent sheet, or can say that the transparent sheet assembles when solar PV modules, the first fluorine rete 11 ' direct contact air of surface course, the first fluorine rete 11 ' of surface course is salt fog resistant, chemical corrosion resistant, ageing-resistant, advantage such as ultraviolet resistant to make the first fluorine rete 11 ' of surface course to have the guard action to transparent sheet or can say that the first fluorine rete 11 ' of surface course solar cell modules. The thickness of the surface layer first fluorine film layer 11 ' is 2 micrometers or more, more specifically, the thickness of the surface layer first fluorine film layer 11 ' is 2 to 30 micrometers, and more specifically, the thickness of the surface layer first fluorine film layer 11 ' is 2 to 10 micrometers. When the thickness of the surface layer first fluorine film layer 11 ' is too small, the protective effect cannot be achieved, and when the thickness of the surface layer first fluorine film layer 11 ' is too large, the cost performance of the transparent sheet is not high, so that the appropriate thickness of the surface layer first fluorine film layer 11 ' is required.
The surface layer intermediate layer 12 ' is mainly composed of a fluorine-containing resin and a reinforcing resin, or the surface layer intermediate layer 12 ' is composed of a film including PVDF and a reinforcing resin, wherein the reinforcing resin is a copolymer or a homopolymer of acrylic acid, for example, the surface layer intermediate layer 12 ' is composed of a film including PVDF and polymethyl methacrylate, wherein the content of PVDF is equal to or greater than that of polymethyl methacrylate, and the content of PVDF is equal to or greater than 70%; for another example, the top layer/middle layer 12' is made of a film comprising PVDF, polymethylmethacrylate, UV-blocking agent, and an antioxidant. The surface layer intermediate layer 12 ' is positioned on the inner side of the surface layer first fluorine film layer 11 ', or the surface layer intermediate layer 12 ' is closer to the cell than the surface layer first fluorine film layer 11 ' after assembly, so to speak, the thickness of the surface layer intermediate layer 12 ' is more than or equal to 5 microns. The thickness of surface course intermediate level 12 ' is more than or equal to the thickness of surface course first fluorine rete 11 ', and the thickness of surface course intermediate level 12 ' is more than or equal to the thickness of surface course second fluorine rete 13 ', and surface course intermediate level 12 ' plays the supporting role to transparent surface course layer 1 ', in addition, can add UV separation agent etc. to the surface course intermediate level and improve transparent sheet's anti UV performance. When the thickness of the surface layer intermediate layer 12 ' is too small, it cannot play a supporting role, and when the thickness of the surface layer intermediate layer is too large, the cost performance of the transparent sheet is not high, so that the thickness of the surface layer intermediate layer 12 ' is 5 μm or more, more specifically, the thickness of the surface layer intermediate layer 12 ' is 5 to 30 μm.
The transparent mask layer 1 'further includes a second fluorine film layer 13', the second fluorine film layer 13 'is mainly made of fluorine-containing resin, for example, the second fluorine film layer 13' is made of a film including PVDF and polymethyl methacrylate, and the content of PVDF is 60% or more. The thickness of the surface layer second fluorine film layer 13' is more than or equal to 5 microns. The surface layer second fluorine film layer 13 'is in contact with the first transparent adhesive layer 2', or the surface layer second fluorine film layer 13 'is attached to the first transparent adhesive layer 2'. The surface layer second fluorine film layer 13 ' has functions of improving the adhesive force of the transparent sheet material, UV protection, and the like, and cannot perform the above-described functions when the thickness of the surface layer second fluorine film layer 13 ' is too small, and the performance ratio of the transparent sheet material is not high when the thickness of the surface layer second fluorine film layer 13 ' is too large, so that the thickness of the surface layer second fluorine film layer 13 ' is 2 micrometers or more, and more specifically, the thickness of the surface layer second fluorine film layer 13 ' is 2 to 30 micrometers.
The first fluorine film layer 11 'of surface course, surface course intermediate level 12' and surface course second fluorine film layer 13 'have the synergism between them to make transparent surface film layer 1' have better functions such as chemical resistance, ultraviolet ageing resistance, salt fog resistance, anti UV protection, for making the synergism between them better and transparent sheet have better price/performance ratio, the thickness ratio of the thickness 11 'of surface course first fluorine film layer and surface course intermediate level 12' is (0.5-1.5): (2-5); the ratio of the thickness 12 'of the surface layer middle layer to the thickness of the surface layer second fluorine film layer 13' (2-5): (0.25-1.5). For example, the thicknesses of the surface layer first fluorine film layer 11 ', the surface layer intermediate layer 12 ', and the surface layer second fluorine film layer 13 ' are respectively: 2. 6 and 2 microns.
Referring to the following table, the following table compares one example of the present application with a comparative example:
example 3:
in this embodiment, the transparent surface film layer is a PVDF film layer of 30 micrometers, the transparent adhesive layer is a 9-micrometer acrylic adhesive layer, the transparent water-blocking layer is a transparent water-blocking layer of 5 nanometers, and the transparent substrate layer is a transparent PET (polyethylene terephthalate) film layer of 12 micrometers.
Comparative example:
comparative example structure in contrast to example 3, lacking a clear water barrier, the comparative example structure is, from top to bottom: 30 micron PVDF film, 9 micron acrylic glue layer, 12 micron transparent PET (polyethylene terephthalate) film layer.
In the following table, the water vapor transmission rate 1 refers to the water vapor transmission rate of all product structures of the high-water-resistance transparent sheet and the comparative example; water vapor transmission rate 2 refers to the water vapor transmission rate of the 5 nm clear water barrier layer combined with the 12 micron clear PET layer in example 3 and the 12 micron clear PET in the comparative example, respectively. The water vapor transmission rate 1 and the water vapor transmission rate 2 are both in the unit of g/m2*d
| Object | Water vapor transmission rate 1 | Water vapor transmission rate 2 |
| Example 3 | 0.645 | 0.87 |
| Comparative example | 19 | 10 |
It can be seen from the data that go up, the joining of transparent water-blocking layer is favorable to reducing the steam transmissivity of high water-blocking transparent sheet to be favorable to reducing the steam transmissivity of PET substrate layer, thereby be favorable to protecting the PET substrate layer.
Claims (10)
1. The high-water-resistance transparent sheet comprises a transparent substrate layer and is characterized in that the high-water-resistance transparent sheet comprises a transparent surface film layer, a transparent adhesive layer, a transparent water-resistance layer and the transparent substrate layer from outside to inside, the transparent adhesive layer is positioned between the transparent surface film layer and the transparent water-resistance layer, the transparent water-resistance layer is positioned between the transparent adhesive layer and the transparent substrate layer, one side of the transparent water-resistance layer is attached to the transparent adhesive layer, the other side of the transparent water-resistance layer is attached to the transparent substrate layer, the transparent water-resistance layer is positioned on the outer side of the transparent substrate layer, and the transmittance of the transparent surface film layer to light with the wavelength of 380-1100nm is more than 80%.
2. The transparent high water-resistant sheet according to claim 1, wherein the transparent surface film layer is a single layer film, the thickness of the transparent surface film layer is 5-100 microns, and the transparent surface film layer is one of PVDF, PVF, ETFE and ECTFE film layers.
3. The high water-resistant transparent sheet according to claim 1, wherein the transparent top film layer is two or more layers, the thickness of the transparent top film layer is 5 to 100 μm, and the transparent top film layer is a PVDF film layer.
4. The highly water-resistant transparent sheet material as claimed in claim 2 or 3, wherein the transparent surface film layer has a transmittance of 85% or more for light having a wavelength of 380-1100 nm.
5. The high water-resistant transparent sheet according to claim 2 or 3, wherein the transparent water-resistant layer has a thickness of 1 μm or less and a water vapor transmission rate of 10 or less0g/m2*d。
6. The high water-resistant transparent sheet according to claim 2 or 3, wherein the transparent water-resistant layer has a thickness of 1 μm or less and a water vapor transmission rate of 10 or less-1g/m2*d。
7. The high water resistant transparent sheet according to claim 1, wherein the thickness of the transparent adhesive layer is 2-25 microns, the thickness of the transparent surface film layer is 20-50 microns, the thickness of the transparent water resistant layer is 10-500 nanometers, and the water vapor transmission rate of the transparent water resistant layer is 10 to 500 nanometers in light rain-3g/m2*d。
8. The high water resistant transparent sheet according to claim 1, wherein the transparent adhesive layer is made of at least one of an acrylic adhesive, a polyurethane adhesive, an epoxy adhesive, and an ethylene-vinyl acetate adhesive.
9. The high water-resistant transparent sheet material as claimed in claim 1, wherein the transparent substrate layer is a transparent PET substrate layer or a transparent PP substrate layer, or a transparent PC substrate layer, or a transparent PBT substrate layer, or a transparent COC substrate layer, or a transparent TPX substrate layer, or a transparent PMMA substrate layer, the thickness of the transparent substrate layer is 40-280 microns, the thickness of the transparent water-resistant layer is 10-500 nanometers, and the water vapor permeability of the transparent water-resistant layer is 10 or less-4g/m2*d。
10. The high water-resistant transparent sheet according to claim 1, wherein the transparent surface film layer comprises a surface layer first fluorine film layer, a surface layer middle layer and a surface layer second fluorine film layer, the surface layer middle layer is positioned between the surface layer first fluorine film layer and the surface layer second fluorine film layer, the surface layer second fluorine film layer is positioned between the surface layer middle layer and the transparent adhesive layer, the thickness of the surface layer middle layer is more than or equal to that of the surface layer first fluorine film layer, the thickness of the surface layer middle layer is more than or equal to that of the surface layer second fluorine film layer, the thickness of the transparent sheet is more than or equal to 100 micrometers, the thickness of the transparent surface film layer is more than or equal to 10 microns, the surface layer middle layer is composed of a film containing PVDF and reinforced resin, the ratio of the thickness of the first fluorine film layer of the surface layer to the thickness of the middle layer of the surface layer is (0.5-1.5): (2-5), the ratio of the thickness of the surface layer middle layer to the thickness of the surface layer second fluorine film layer is (2-5): (0.25-1.5), the light transmittance of the high water-resistant transparent sheet relative to light of 380-1100nm is more than or equal to 85%, and the water vapor transmittance of the transparent water-resistant layer is less than or equal to 10-6g/m2*d。
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