Frame fixing adhesive tape for integrated lamination of photovoltaic module and preparation method of frame fixing adhesive tape
By using a combination of a pressure-sensitive adhesive layer and a photovoltaic adhesive film on the frame of the photovoltaic module, and combining metal frames for integrated lamination and packaging, the problem of cumbersome frame packaging process and long curing time in the existing technology is solved, and efficient Adhesive performance and simplified process.
Patent Information
- Application Number
- CN202411307756.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2024-12-20
AI Technical Summary
The frame packaging process of existing photovoltaic modules is complicated, the silicone curing time is long and the operation is difficult to control. The pressure-sensitive adhesive tape needs to be laminated before frame packaging, which increases the process and time.
The photovoltaic module integrated lamination frame fixing tape is adopted with a pressure-sensitive adhesive layer including an outer photovoltaic adhesive film and a core laminated pressure-sensitive adhesive layer. The adhesive layer is made of pressure-sensitive adhesive, tackifier, accelerator, aging resistance additive and ultraviolet resistance It is composed of a agent, which is coated on a photovoltaic adhesive film after stirring and filtration, and is bonded after drying, and is integrated laminated and packaged with metal frames.
It achieves good initial bonding performance and firm bonding without standing curing, simplifying the frame packaging process, and the performance is no less than silicone.
Smart Images
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Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of photovoltaic module fixing tapes, and in particular relates to a frame fixing tape for integral lamination of photovoltaic modules and a preparation method thereof. Background Art
[0002] The solar panel is installed in the frame of the module, which is similar to installing a mirror frame on the solar panel. Its main function is to increase the compressive strength of the photovoltaic module, further seal the battery module, and extend the service life of the module. The frame is generally encapsulated by long and short aluminum alloy frames, corner pieces, etc. The frame is made of aluminum alloy material, and the gap between the frame and the photovoltaic module is filled with silicone. The long and short frames are connected by corner pieces.
[0003] The existing photovoltaic module frame packaging and fixation is mainly to inject single-component silicone into the aluminum profile. The curing of the glue takes at least 4-8 hours, which is a long curing time and also requires a circulation area.
[0004] Some photovoltaic modules are encapsulated with pressure-sensitive adhesive tapes. However, the pressure-sensitive adhesive tapes in the existing process need to be laminated on the photovoltaic modules and then attached to the edges, and then the frame is encapsulated. Although this saves time compared to injecting silicone, it adds a process.
[0005] Therefore, how to overcome the cumbersome process of packaging photovoltaic modules with frame tape is a technical problem that needs to be solved urgently in this field.
[0006] It should be noted that the above information disclosed in this background technology section is only used to understand the background technology of the present application concept, and therefore, the above description is not considered to constitute information of the prior art. Summary of the invention
[0007] The embodiments of the present disclosure at least provide a frame fixing tape for integral lamination of photovoltaic modules and a preparation method thereof.
[0008] In the first aspect, the embodiments of the present disclosure provide a frame fixing tape for integrated lamination of photovoltaic modules, comprising: an outer layer of photovoltaic film respectively located on both sides and a pressure-sensitive adhesive layer arranged on a core layer; wherein the pressure-sensitive adhesive layer comprises the following components in parts by mass: 100 parts of a pressure-sensitive adhesive; 0.1-5 parts of a tackifier; 1-2 parts of a promoter; 0.5-5 parts of an anti-aging agent; 0.5-5 parts of an anti-ultraviolet agent; and 3-10 parts of a solvent.
[0009] In an optional embodiment, the pressure-sensitive adhesive includes any one of an acrylic pressure-sensitive adhesive and a rubber pressure-sensitive adhesive, or a combination of both.
[0010] In an optional embodiment, the tackifier includes any one or more combinations of petroleum resin, rosin resin, terpene resin and terpene phenolic resin.
[0011] In an alternative embodiment, the accelerator is a vinyl ester.
[0012] In an optional embodiment, the anti-aging aid is an antioxidant, including any one or more combinations of BASF 168, BASF 1010 and BASF 1076;
[0013] In an optional embodiment, the UV-resistant auxiliary agent is a UV absorber, including any one or more combinations of UV-327, UV-329, UV-531 and UV-1164.
[0014] In an optional embodiment, the solvent includes any one or more combinations of ethyl acetate, toluene and xylene.
[0015] In an optional embodiment, the photovoltaic adhesive film includes any one or more combinations of EVA film, POE film, EPE film, EP film, and double E film.
[0016] In a second aspect, the embodiments of the present disclosure also provide a method for preparing a frame fixing tape for integrated lamination of photovoltaic modules as described above, comprising: (1) stirring and dispersing the raw materials evenly according to a ratio, filtering the materials to obtain glue, and sealing and storing them; (2) applying the glue in a scattered or whole form on one side of a single-sided release film or a single-sided silicon-coated paper, drying it, attaching the photovoltaic film, and rolling it up to obtain a mother roll; (3) cutting it according to the width of the photovoltaic module frame and the thickness of the glass to obtain a frame fixing tape for integrated lamination of photovoltaic modules.
[0017] In an optional embodiment, the step (2) specifically includes: first weighing the pressure-sensitive adhesive, starting to stir, dispersing at a speed of 200-500 r / min for 5-10 minutes, respectively weighing the tackifier, accelerator, aging resistance aid and UV resistance aid according to the ratio and adding them while stirring, after all are added, dispersing at a speed of 200-500 r / min for 0.5-1h, and then filtering with a 100-200 mesh filter cloth to discharge the material.
[0018] In an optional embodiment, the step (3) specifically includes: the coating vehicle speed is 5-10 m / min; the temperature of the oven is 60-120°C.
[0019] In a third aspect, the embodiments of the present disclosure also provide an integrated lamination packaging method for a photovoltaic module frame, comprising: (1) affixing at least one layer of the photovoltaic module integrated lamination frame fixing tape as described above on the metal frame; (2) stacking the single-glass or double-glass modules; (3) putting the metal frame with the photovoltaic module integrated lamination frame fixing tape on the outer ring of the single-glass or double-glass module and temporarily fixing it with a positioning tape; (4) placing the entire frame into a laminator for vacuum lamination and pressing; (5) taking out the module, tearing off the temporary positioning tape, and the module frame installation is completed.
[0020] In a fourth aspect, the embodiments of the present disclosure also provide an integrated lamination packaging method for a photovoltaic module frame, comprising: (1) stacking single-glass or double-glass modules; (2) attaching at least one layer of the photovoltaic module integrated lamination frame fixing tape as described above to the edge of the single-glass or double-glass module; (3) putting a metal frame on the outer ring of the single-glass or double-glass module with the photovoltaic module integrated lamination frame fixing tape attached and temporarily fixing it with a positioning tape; (4) placing the entire module into a laminator for vacuum lamination and pressing; (5) taking out the module, tearing off the temporary positioning tape, and the module frame is installed.
[0021] The beneficial effect of the present invention is that the frame fixing tape for integrated lamination of photovoltaic modules and the preparation method thereof are applied to the frame packaging and fixing of photovoltaic modules by configuring a pressure-sensitive adhesive layer mainly composed of a pressure-sensitive adhesive and a photovoltaic film. The pressure-sensitive adhesive layer can provide good initial bonding performance, does not need to be left to cure after use, and forms a strong bonding force with the photovoltaic film after integrated lamination, and has a frame packaging performance that is not inferior to that of silicone.
[0022] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and claims.
[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below for detailed description as follows. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be described clearly and completely below. Obviously, the described embodiments are 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 are within the scope of protection of the present invention.
[0025] As used herein, the phrases "in one embodiment," "according to one embodiment," "in some embodiments," and the like generally refer to the fact that the particular feature, structure, or characteristic following the phrase may be included in at least one embodiment of the present disclosure. Therefore, a particular feature, structure, or characteristic may be included in more than one embodiment of the present disclosure, so that these phrases do not necessarily refer to the same embodiment. As used herein, the terms "example," "exemplary," and the like are used to "serve as an example, instance, or illustration." Any implementation, aspect, or design described herein as "example" or "exemplary" is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. On the contrary, the use of the terms "example," "exemplary," and the like is intended to present concepts in a concrete manner.
[0026] In this document, as used herein, expressions such as "at least one of..." when following a list of elements modify the entire list of elements rather than modifying the individual elements in the list. For example, the expression "at least one of a, b, and c" should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.
[0027] The terms used herein are only used to describe specific exemplary configurations and are not intended to be limited. As used herein, the singular articles "one", "an" and "the" may also be intended to include plural forms, unless it is clearly indicated above that this is not the case. The terms "comprise", "include" and "have" are inclusive, and therefore specify the presence of features, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components and / or combinations thereof. The method steps, processes and operations described herein should not be interpreted as necessarily requiring them to be performed in the specific order discussed or shown, unless specifically identified as an execution order. Additional or alternative steps may be adopted.
[0028] When silicone is packaged, silicone plays a bonding role, but silicone is in liquid state, and it is difficult to control the edge during operation. Moreover, after installation, it needs to be placed at room temperature for 4-8 hours to achieve complete curing before it can be transported.
[0029] The base materials of existing pressure-sensitive adhesive tapes are mostly made of foams such as PE, acrylic, and PU. Such foams have poor processability, so the components need to be laminated first, then edge wrapped, and finally frame packaged.
[0030] The defects existing in the above solutions are the results obtained by the inventor after practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed by the present disclosure for the above problems below should be the contributions made by the inventor to the present disclosure during the disclosure process.
[0031] The embodiment of the present disclosure provides a frame fixing tape for integrated lamination of photovoltaic modules, comprising: an outer layer of photovoltaic film respectively located on both sides and a pressure-sensitive adhesive layer arranged on a core layer; wherein the pressure-sensitive adhesive layer comprises the following components in parts by mass: 100 parts of a pressure-sensitive adhesive; 0.1-5 parts of a tackifier; 1-2 parts of a promoter; 0.5-5 parts of an anti-aging agent; 0.5-5 parts of an anti-ultraviolet agent; and 3-10 parts of a solvent.
[0032] In some embodiments, specifically, the pressure-sensitive adhesive includes any one of an acrylic pressure-sensitive adhesive and a rubber pressure-sensitive adhesive, or a combination of both.
[0033] In some embodiments, specifically, the tackifier includes any one or more combinations of petroleum resin, rosin resin, terpene resin and terpene phenolic resin.
[0034] In some embodiments, specifically, the promoter is a vinyl ester, preferably epoxy diacrylate, which can simultaneously promote the bonding performance of the pressure-sensitive adhesive layer with glass and metal.
[0035] In some embodiments, specifically, the anti-aging aid is an antioxidant, including any one or more combinations of BASF 168, BASF 1010 and BASF 1076;
[0036] In some embodiments, specifically, the UV-resistant auxiliary agent is a UV absorber, including any one or more combinations of UV-327, UV-329, UV-531 and UV-1164.
[0037] In some embodiments, specifically, the solvent includes any one or more combinations of ethyl acetate, toluene and xylene.
[0038] In some embodiments, specifically, the photovoltaic adhesive film includes any one or more combinations of EVA film, POE film, EPE film, EP film, and double E film. Compared with the foam substrate, the photovoltaic adhesive film has better processability and can achieve integrated frame packaging during the lamination process.
[0039] The disclosed embodiment also provides a method for preparing the frame fixing tape for integrated lamination of photovoltaic modules as described above, comprising: (1) stirring and dispersing the raw materials evenly according to the ratio, filtering the materials to obtain glue, and sealing and storing them; (2) applying the glue in a scattered or whole form on one side of a single-sided release film or a single-sided silicon-coated paper, drying it, attaching the photovoltaic adhesive film, and rolling it up to obtain a mother roll; (3) cutting it according to the width of the photovoltaic module frame and the thickness of the glass to obtain the frame fixing tape for integrated lamination of photovoltaic modules.
[0040] In some embodiments, specifically, the step (2) specifically includes: first weighing the pressure-sensitive adhesive, starting to stir, dispersing at a speed of 200-500 r / min for 5-10 minutes, respectively weighing the tackifier, accelerator, aging resistance aid and UV resistance aid according to the ratio and adding them while stirring, after all are added, dispersing at a speed of 200-500 r / min for 0.5-1h, and then filtering with a 100-200 mesh filter cloth to discharge the material.
[0041] In some embodiments, specifically, the step (3) specifically includes: the coating vehicle speed is 5-10 m / min; the temperature of the oven is 60-120°C.
[0042] The disclosed embodiment also provides an integrated lamination packaging method for a photovoltaic module frame, comprising: (1) affixing at least one layer of the photovoltaic module integrated lamination frame fixing tape as described above on a metal frame; (2) stacking single-glass or double-glass modules; (3) sleeve the metal frame with the photovoltaic module integrated lamination frame fixing tape on the outer ring of the single-glass or double-glass module and temporarily fix it with a positioning tape; (4) placing the entire frame into a laminator for vacuum lamination and pressing; (5) taking out the module, tearing off the temporary positioning tape, and the module frame is installed.
[0043] The disclosed embodiment also provides an integrated lamination packaging method for a photovoltaic module frame, comprising: (1) stacking single-glass or double-glass modules; (2) attaching at least one layer of the photovoltaic module integrated lamination frame fixing tape as described above to the edge of the single-glass or double-glass module; (3) putting a metal frame on the outer ring of the single-glass or double-glass module with the photovoltaic module integrated lamination frame fixing tape attached and temporarily fixing it with a positioning tape; (4) placing the entire module into a laminator for vacuum lamination and pressing; (5) taking out the module, tearing off the temporary positioning tape, and the module frame is installed.
[0044] Some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.
[0045] Embodiment 1, a frame fixing tape for integral lamination of photovoltaic modules, comprising: a photovoltaic film and a pressure-sensitive adhesive layer attached to one side of the photovoltaic film; wherein the pressure-sensitive adhesive layer comprises the following components in parts by weight:
[0046]
[0047] The pressure-sensitive adhesive is an acrylic adhesive.
[0048] The tackifier is petroleum resin and terpene phenolic resin in a ratio of 1:1.
[0049] The accelerator is epoxy diacrylate.
[0050] The anti-aging auxiliary agent is the antioxidant BASF 1010.
[0051] The anti-ultraviolet auxiliary agent is ultraviolet absorber UV-531.
[0052] The solvent is ethyl acetate.
[0053] The pressure-sensitive adhesive layer of the frame fixing tape for integrated lamination of photovoltaic modules has a thickness of 0.03mm-0.1mm, the laminated photovoltaic film is 0.5mm transparent EVA, the tape has a uniform thickness, and the thickness of the photovoltaic film can be changed according to demand.
[0054] Embodiment 2: A frame fixing tape for integral lamination of photovoltaic modules, comprising: a photovoltaic film and a pressure-sensitive adhesive layer attached to one side of the photovoltaic film; wherein the pressure-sensitive adhesive layer comprises the following components in parts by weight:
[0055]
[0056] The pressure-sensitive adhesive is a silicone adhesive.
[0057] The tackifier is rosin resin and terpene phenolic resin in a ratio of 1:1.
[0058] The accelerator is epoxy diacrylate.
[0059] The anti-aging auxiliary agent is the antioxidant BASF 168.
[0060] The UV-resistant auxiliary agent is UV absorber UV2020.
[0061] The solvent is ethyl acetate.
[0062] The pressure-sensitive adhesive layer of the frame fixing tape for integrated lamination of photovoltaic modules has a thickness of 0.03mm-0.1mm, the laminated photovoltaic film is 0.5mm transparent EVA, the tape has a uniform thickness, and the thickness of the photovoltaic film can be changed according to demand.
[0063] Embodiment 3: A frame fixing tape for integral lamination of photovoltaic modules, comprising: a photovoltaic film and a pressure-sensitive adhesive layer attached to one side of the photovoltaic film; wherein the pressure-sensitive adhesive layer comprises the following components in parts by weight:
[0064]
[0065] The pressure-sensitive adhesive is a rubber adhesive.
[0066] The tackifier is petroleum resin, rosin resin and terpene resin in a ratio of 1:1:1.
[0067] The accelerator is epoxy diacrylate.
[0068] The anti-aging auxiliary agent is the antioxidant BASF 168.
[0069] The anti-ultraviolet auxiliary agent is ultraviolet absorber UV-531.
[0070] The solvent is toluene.
[0071] The pressure-sensitive adhesive layer of the frame fixing tape for integrated lamination of photovoltaic modules has a thickness of 0.03mm-0.1mm, the laminated photovoltaic film is 0.5mm transparent EVA, the tape has a uniform thickness, and the thickness of the photovoltaic film can be changed according to demand.
[0072] Specifically, the preparation methods of the above embodiments 1-3 are as follows:
[0073] (1) Stir and disperse the raw materials uniformly according to the ratio, first weigh the pressure-sensitive adhesive, start stirring, and disperse at a speed of 300 r / min for 8 minutes, and then weigh the tackifier, accelerator, aging-resistant additive and UV-resistant additive according to the ratio and add them while stirring. After all are added, disperse at a speed of 300 r / min for 1 hour, and then filter with a 200-mesh filter cloth, discharge the material, obtain glue, and store it in a sealed container;
[0074] (2) Apply the glue in a scattered form on one side of the single-sided release film or single-sided coated silicon paper at a coating speed of 8m / min and place it in an oven at 60, 80, 100, 110, 120, 90°C. (6段烘箱) After drying, the photovoltaic film is laminated and rolled up to obtain a mother roll;
[0075] (3) Cutting according to the width of the photovoltaic module frame and the thickness of the glass to obtain a frame fixing tape for integral lamination of the photovoltaic module.
[0076] Specifically, the above-mentioned embodiments 1-3 adopt the method of first sticking a fixing tape on the metal frame and then putting it on the stacking assembly for integrated lamination.
[0077] Specifically, the following performance tests were conducted on the photovoltaic module integral lamination frame fixing tapes of Examples 1-3, and the thickness of the module integral lamination edge sealing tapes used in the tests was 0.53 mm, 0.57 mm, and 0.60 mm. The specific results are shown in Tables 1-3 below:
[0078] Table 1
[0079]
[0080] Table 2
[0081]
[0082] Table 3
[0083]
[0084]
[0085] In summary, the frame fixing tape for integrated lamination of photovoltaic modules and its preparation method are applied to the frame packaging and fixing of photovoltaic modules by configuring a pressure-sensitive adhesive layer mainly composed of a pressure-sensitive adhesive and a photovoltaic film. The pressure-sensitive adhesive layer can provide good initial bonding performance, does not need to be left to cure after use, and forms a strong bonding force with the photovoltaic film after integrated lamination, and has a frame packaging performance that is not inferior to that of silicone.
[0086] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A frame fixing tape for integrated lamination of photovoltaic modules, characterized in that: include: The outer photovoltaic adhesive film is located on both sides and the pressure-sensitive adhesive layer is arranged on the core layer; The pressure-sensitive adhesive layer comprises the following components in parts by mass: 100 parts of pressure-sensitive adhesive; 0.1-5 parts of tackifier; 1-2 parts of accelerator; 0.5-5 parts of anti-aging additive; 0.5-5 parts of UV-resistant additive; 3-10 parts of solvent.
2. The frame fixing tape for integrated lamination of photovoltaic modules according to claim 1, characterized in that: The pressure-sensitive adhesive includes any one of an acrylic pressure-sensitive adhesive and a rubber pressure-sensitive adhesive or a combination of both.
3. The frame fixing tape for integrated lamination of photovoltaic modules according to claim 1, characterized in that: The tackifier comprises any one or more combinations of petroleum resin, rosin resin, terpene resin and terpene phenolic resin; The accelerator is a vinyl ester.
4. The frame fixing tape for integrated lamination of photovoltaic modules according to claim 1, characterized in that: The anti-aging aid is an antioxidant, including any one or more combinations of BASF 168, BASF 1010 and BASF 1076; The anti-ultraviolet auxiliary agent is an ultraviolet absorber, including any one or more combinations of UV-327, UV-329, UV-531 and UV-1164.
5. The frame fixing tape for integrated lamination of photovoltaic modules according to claim 1, characterized in that: The solvent includes any one or more combinations of ethyl acetate, toluene and xylene.
6. The frame fixing tape for integrated lamination of photovoltaic modules according to claim 1, characterized in that: The photovoltaic adhesive film includes any one or more combinations of EVA film, POE film, EPE film, EP film, and double E film.
7. A method for preparing a frame fixing tape for integrated lamination of photovoltaic modules according to any one of claims 1 to 6, characterized in that: include: (1) Stir and disperse the raw materials evenly according to the ratio, filter the materials to obtain glue, and store it in a sealed container; (2) Applying glue in scattered spots or in full width on one side of a single-sided release film or a single-sided coated silicon paper, laminating the photovoltaic film after drying, and rolling it up to obtain a mother roll; (3) Cutting according to the width of the photovoltaic module frame and the thickness of the glass to obtain a frame fixing tape for integral lamination of photovoltaic modules.
8. The method for preparing the frame fixing tape for integrated lamination of photovoltaic modules according to claim 7, characterized in that: The step (2) specifically includes: First, weigh the pressure-sensitive adhesive, start stirring, and disperse it at a speed of 200-500r / min for 5-10 minutes. Then, weigh the tackifier, accelerator, anti-aging agent and UV-resistant agent according to the ratio and add them while stirring. After all are added, disperse them at a speed of 200-500r / min for 0.5-1h, then filter with a 100-200 mesh filter cloth and discharge the material. The step (3) specifically includes: The coating speed is 5-10m / min; The temperature of the oven is 60-120°C.
9. An integrated lamination packaging method for a photovoltaic module frame, characterized in that: include: (1) affixing at least one layer of the frame fixing tape for integrated lamination of photovoltaic modules as described in any one of claims 1 to 7 on the metal frame; (2) Stack single-glass or double-glass modules; (3) Put the metal frame with the frame fixing tape for photovoltaic module integral lamination on the outer ring of the single-glass or double-glass module and temporarily fix it with positioning tape; (4) Place the whole into a laminator for vacuum lamination; (5) Take out the component and tear off the temporary positioning tape. The component frame installation is complete.
10. An integrated lamination packaging method for a photovoltaic module frame, characterized in that: include: (1) Stack single-glass or double-glass modules; (2) affixing at least one layer of the frame fixing tape for integral lamination of photovoltaic modules as claimed in any one of claims 1 to 7 on the edge of a single-glass or double-glass module; (3) Put the metal frame on the outer ring of the single-glass or double-glass module with the frame fixing tape for photovoltaic module integral lamination and temporarily fix it with positioning tape; (4) Place the whole into a laminator for vacuum lamination; (5) Take out the component and tear off the temporary positioning tape. The component frame installation is complete.