High-water-resistance edge sealing adhesive tape for N-type double-glass photovoltaic module

Abstract

The utility model aims to disclose a high-water-resistance edge sealing adhesive tape for an N-type double-glass photovoltaic module, which relates to the technical field of photovoltaic cells and comprises a release layer, a pressure-sensitive adhesive layer, a base material layer, an adhesive layer and a water-resistant layer which are sequentially arranged from top to bottom, the water-blocking layer is an aluminum foil, a transparent water-blocking film or an evaporation film; the thickness of the waterproof layer is 5 microns to 50 microns; the pressure-sensitive adhesive layer is an acrylate adhesive layer, a rubber adhesive layer or an organic silicon adhesive layer; the thickness of the pressure-sensitive adhesive layer is 5 microns to 50 microns; the base material layer is one of a PET film, a PVC film, a PA film, a PVDF film or a PVF film; the adhesive layer is a polyurethane resin layer, an acrylic resin layer or an epoxy resin layer; the high-water-resistance edge-sealing adhesive tape has the beneficial effects that the high-water-resistance edge-sealing adhesive tape adopts the water-resistance layer and the pressure-sensitive adhesive layer, and the water-resistance layer is made of an ultrahigh-water-resistance material such as aluminum foil, a transparent water-resistance film or an evaporation film, so that the comprehensive water-resistance effect is good, and after the high-water-resistance edge-sealing adhesive tape is tested according to a GB / T 26253 method, the water vapor transmittance of the high-water-resistance edge-sealing adhesive tape does not exceed 0.4 g / m < 2 >. 24h.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic cells, in particular to a high-resistance water-sealing edge tape for an N-type double-glass photovoltaic assembly. Background Art

[0002] Currently, the edge sealing tape of double-glass photovoltaic modules is mostly butyl rubber, which has poor water vapor barrier performance and cannot solve the problem of N-type batteries' sensitivity to water vapor.

[0003] In view of this, there is an urgent need to provide a high water-resistance edge sealing tape for N-type double-glass photovoltaic modules. Summary of the invention

[0004] The utility model aims to disclose a high water-resistance edge-sealing tape for an N-type double-glass photovoltaic module.

[0005] To achieve the above-mentioned purpose of the invention, the utility model provides a high water-resistance edge sealing tape for N-type double-glass photovoltaic modules, comprising a release layer, a pressure-sensitive adhesive layer, a substrate layer, an adhesive layer and a water-resistance layer arranged in sequence from top to bottom;

[0006] The water-blocking layer is aluminum foil;

[0007] The thickness of the water-blocking layer is 5 μm-50 μm;

[0008] The pressure-sensitive adhesive layer is an acrylic adhesive layer, a rubber adhesive layer or a silicone adhesive layer;

[0009] The thickness of the pressure-sensitive adhesive layer is 5 μm-50 μm.

[0010] Preferably, the substrate layer is one of a PET film, a PVC film, a PA film, a PVDF film or a PVF film, and the thickness of the substrate layer is 10 μm-100 μm.

[0011] Preferably, the adhesive layer is a polyurethane resin layer, an acrylic resin layer or an epoxy resin layer, and the thickness of the adhesive layer is 2 μm-15 μm.

[0012] Preferably, the aluminum foil is 5 μm-40 μm.

[0013] In order to achieve the above-mentioned invention object, the utility model also provides a high water-resistance edge sealing tape for N-type double-glass photovoltaic modules, comprising a release layer, a pressure-sensitive adhesive layer and a water-resistance layer arranged in sequence from top to bottom;

[0014] The water-blocking layer is a transparent water-blocking film or a vapor-deposited film;

[0015] The pressure-sensitive adhesive layer is an acrylic adhesive layer, a rubber adhesive layer or a silicone adhesive layer;

[0016] The thickness of the pressure-sensitive adhesive layer is 5 μm-50 μm.

[0017] Preferably, the release layer is a PET release layer or a PE release layer, and the thickness of the release layer is 5 μm-50 μm.

[0018] Preferably, the transparent water-blocking film comprises a base film and a functional layer, the base film is a PET film, a PA film or an OPP film, the functional layer is a PVA coating layer or a PVDC coating layer, and the thickness of the functional layer is 1 μm-6 μm.

[0019] Preferably, the transparent water-blocking film has a thickness of 6 μm-56 μm.

[0020] Preferably, the evaporated film includes a base film and a functional layer, the base film is a PET film, a PA film or an OPP film, the functional layer is a silicon oxide evaporated layer, an aluminum oxide evaporated layer or an aluminum evaporated layer, and the thickness of the functional layer is 10nm-100nm.

[0021] Preferably, the evaporated film has a thickness of 5 μm-50 μm.

[0022] Compared with the prior art, the beneficial effects of this embodiment are:

[0023] The high water-blocking edge sealing tape uses a water-blocking layer and a pressure-sensitive adhesive layer. The water-blocking layer is made of ultra-high water-blocking materials, such as aluminum foil, transparent water-blocking film or vapor-deposited film. The comprehensive water-blocking effect is good. After testing according to the GB / T 26253 method, the water vapor transmission rate of the high water-blocking edge sealing tape does not exceed 0.4g / m 2 .24h. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a cross-sectional view of the high water-resistance edge sealing tape for an N-type double-glass photovoltaic module according to the first embodiment of the utility model.

[0025] Figure 2 It is a cross-sectional view of the high water-resistance edge sealing tape for the N-type double-glass photovoltaic module of the second or third embodiment of the utility model.

[0026] Among them, 1. release layer; 2. pressure-sensitive adhesive layer; 3. substrate layer; 4. adhesive layer; 5. water-blocking layer; 51. base film; 52. functional layer. DETAILED DESCRIPTION

[0027] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0029] Embodiment 1

[0030] See also Figure 1 As shown, the utility model provides a high water-resistance edge sealing tape for an N-type double-glass photovoltaic module, comprising a release layer 1, a pressure-sensitive adhesive layer 2, a substrate layer 3, an adhesive layer 4 and a water-blocking layer 5 which are arranged in sequence from top to bottom; the water-blocking layer 5 is an aluminum foil; the release layer is a PET release layer or a PE release layer, and the thickness of the release layer is 5μm-50μm; the thickness of the water-blocking layer 5 is 5μm-50μm, preferably 10μm, 20μm, 30μm and 40μm; the pressure-sensitive adhesive layer is an acrylic adhesive layer, a rubber adhesive layer or a silicone adhesive layer; the thickness of the pressure-sensitive adhesive layer is 5μm-50μm; the substrate layer is one of a PET film, a PVC film, a PA film, a PVDF film or a PVF film, and the thickness of the substrate layer is 10μm-100μm; the adhesive layer is a polyurethane resin layer, an acrylic resin layer or an epoxy resin layer, and the thickness of the adhesive layer is 2μm-15μm.

[0031] The high water-blocking edge sealing tape uses a water-blocking layer 5 and a pressure-sensitive adhesive layer 2. The water-blocking layer 5 uses ultra-high water-blocking aluminum foil, and has a good comprehensive water-blocking effect. After testing according to the GB / T 26253 method, the water vapor transmission rate of the high water-blocking edge sealing tape does not exceed 0.4g / m 2 .24h, the performance parameters of high water-resistance edge sealing tape are shown in Table 1.

[0032] Table 1 Performance parameters of high water-resistant edge sealing tape

[0033]

[0034] Embodiment 2

[0035] See also Figure 2As shown, the utility model provides a high water-resistance edge sealing tape for an N-type double-glass photovoltaic module, comprising a release layer 1, a pressure-sensitive adhesive layer 2 and a water-blocking layer 5 arranged in sequence from top to bottom; the water-blocking layer 5 is a transparent water-blocking film; the pressure-sensitive adhesive layer 2 is an acrylic adhesive layer, a rubber adhesive layer or a silicone adhesive layer; the pressure-sensitive adhesive layer 2 has a thickness of 5μm-50μm; the release layer 1 is a PET release layer or a PE release layer, and the thickness of the release layer 1 is 5μm-50μm; the water-blocking layer 5 has a thickness of 5μm-50μm, preferably 10μm, 20μm, 30μm and 40μm.

[0036] Specifically, the transparent water-blocking film includes a base film 51 and a functional layer 52, the base film 51 is a PET film, a PA film or an OPP film, the base film 51 has a thickness of 5 μm-50 μm, the functional layer 52 is a PVA coating layer or a PVDC coating layer, the functional layer 52 has a thickness of 1 μm-6 μm, and the transparent water-blocking film has a thickness of 6 μm-56 μm; the pressure-sensitive adhesive layer 2 is coated on the surface of the functional layer 52.

[0037] The high water-blocking edge sealing tape uses a water-blocking layer 5 and a pressure-sensitive adhesive layer 2. The water-blocking layer 5 is made of ultra-high water-blocking material, such as a PET film with a PVA coating layer, or an OPP film with a PVDC coating layer. The comprehensive water-blocking effect is good. After testing according to the GB / T 26253 method, the water vapor transmission rate of the high water-blocking edge sealing tape does not exceed 0.4g / m 2 .24h, the performance parameters of high water-resistance edge sealing tape are shown in Table 2.

[0038] Table 2 Performance parameters of high water-resistant edge sealing tape

[0039]

[0040] Embodiment 3

[0041] The difference from Example 2 is that the water-blocking layer 5 of Example 3 is a vapor-deposited film, and the vapor-deposited film includes a base film 51 and a functional layer 52. The base film 51 is a PET film, a PA film or an OPP film, and the thickness of the base film 51 is 5μm-50μm. The functional layer 52 is a silicon oxide vapor-deposited layer, an aluminum oxide vapor-deposited layer or an aluminum vapor-deposited layer, and the thickness of the vapor-deposited film is 5μm-50μm; the thickness of the functional layer is 10nm-100nm; the pressure-sensitive adhesive layer 2 is coated on the surface of the functional layer 52.

[0042] The high water-blocking edge-sealing tape uses a water-blocking layer 5 and a pressure-sensitive adhesive layer 2. The water-blocking layer 5 is made of ultra-high water-blocking material, such as a PET film with a silicon oxide vapor-deposited layer, or an OPP film with an aluminum vapor-deposited layer. The comprehensive water-blocking effect is good. After testing according to the GB / T 26253 method, the water vapor transmission rate of the high water-blocking edge-sealing tape does not exceed 0.4g / m 2.24h, the performance parameters of high water-resistance edge sealing tape are shown in Table 3.

[0043] Table 3 Performance parameters of high water-resistant edge sealing tape

[0044]

[0045] The high-resistance water-sealing edge tape for N-type double-glass photovoltaic modules disclosed in this embodiment has the same technical solution as that of the second embodiment. Please refer to the description of the second embodiment and will not be repeated here.

Claims

1. High water-resistance edge sealing tape for N-type double-glass photovoltaic modules, characterized in that: It includes a release layer, a pressure-sensitive adhesive layer and a water-blocking layer arranged in sequence from top to bottom; The water-blocking layer is a transparent water-blocking film or a vapor-deposited film; The pressure-sensitive adhesive layer is an acrylic adhesive layer, a rubber adhesive layer or a silicone adhesive layer; The thickness of the pressure-sensitive adhesive layer is 5 μm-50 μm; The transparent water-blocking film comprises a base film and a functional layer, wherein the base film is a PET film, a PA film or an OPP film, and the functional layer is a PVA coating layer or a PVDC coating layer, and the thickness of the functional layer is 1 μm-6 μm.

2. The high water-resistance edge-sealing tape for N-type double-glass photovoltaic modules according to claim 1, characterized in that: The release layer is a PET release layer or a PE release layer, and the thickness of the release layer is 5 μm-50 μm.

3. The high water-resistance edge-sealing tape for N-type double-glass photovoltaic modules according to claim 1, characterized in that: The transparent water-blocking film has a thickness of 6 μm-56 μm.

4. The high water-resistance edge-sealing tape for N-type double-glass photovoltaic modules according to claim 1, characterized in that: The evaporated film includes a base film and a functional layer, the base film is a PET film, a PA film or an OPP film, the functional layer is a silicon oxide evaporated layer, an aluminum oxide evaporated layer or an aluminum evaporated layer, and the thickness of the functional layer is 10nm-100nm.

5. The high water-resistance edge-sealing tape for N-type double-glass photovoltaic modules as claimed in claim 4, characterized in that: The thickness of the evaporated film is 5 μm-50 μm.

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