CN114015367B - Packaging adhesive film for photovoltaic cell with high interlayer bonding force - Google Patents

Packaging adhesive film for photovoltaic cell with high interlayer bonding force Download PDF

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Publication number
CN114015367B
CN114015367B CN202111236330.7A CN202111236330A CN114015367B CN 114015367 B CN114015367 B CN 114015367B CN 202111236330 A CN202111236330 A CN 202111236330A CN 114015367 B CN114015367 B CN 114015367B
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Prior art keywords
adhesive film
film layer
polyolefin elastomer
compatible
layer
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CN114015367A (en
Inventor
袁角亮
郭明波
张磊
喻志刚
马院红
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Shanghai Runshi Technology Co ltd
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Shanghai Runshi Technology Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C09J7/24—Plastics; Metallised plastics based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/29—Laminated material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/048—Encapsulation of modules
    • H01L31/0481—Encapsulation of modules characterised by the composition of the encapsulation material
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
    • C09J2203/322—Applications of adhesives in processes or use of adhesives in the form of films or foils for the production of solar panels
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
    • C09J2203/326—Applications of adhesives in processes or use of adhesives in the form of films or foils for bonding electronic components such as wafers, chips or semiconductors
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
    • C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/16—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer
    • C09J2301/162—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer the carrier being a laminate constituted by plastic layers only
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/20—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive itself
    • C09J2301/208—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive itself the adhesive layer being constituted by at least two or more adjacent or superposed adhesive layers, e.g. multilayer adhesive
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2423/00—Presence of polyolefin
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2429/00—Presence of polyvinyl alcohol
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2451/00—Presence of graft polymer
    • C09J2451/006—Presence of graft polymer in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2475/00—Presence of polyurethane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention relates to a packaging adhesive film for a photovoltaic cell with high interlayer bonding force, which comprises the following components: a plurality of first adhesive film layers, a plurality of second adhesive film layers and a plurality of compatible film layers; wherein, a plurality of first adhesive film layers and a plurality of second adhesive film layers are alternately laminated, and a compatible film layer is arranged between each first adhesive film layer and each second adhesive film layer; the first adhesive film layer is a polyolefin elastomer adhesive film layer; the second adhesive film layer and the first adhesive film layer are made of different adhesive film materials; the compatible film layer is a polyolefin elastomer graft layer. According to the invention, the compatible film layer made of POE graft copolymer is added between the polyolefin elastomer film layer and the film layer, and the POE molecular chain in the graft and the POE film have good compatibility in the lamination process of the film, so that the interlayer binding force of the composite film is greatly improved and the combination of chemical bonds is formed through the bridge action of the compatible film layer, and the problem that the composite film is easy to physically delaminate is solved.

Description

Packaging adhesive film for photovoltaic cell with high interlayer bonding force
Technical Field
The invention relates to the field of packaging materials for solar photovoltaic cell assemblies, in particular to a packaging adhesive film for a photovoltaic cell with high interlayer bonding force.
Background
Polyolefin elastomer (POE) is copolymer of ethylene and butene or octene, its molecular chain is saturated olefin structure, molecular chain structure is stable, nonpolar, difficult to crystallize, therefore have excellent water vapor barrier ability, ion barrier ability and high light transmittance, the aging process will not produce the acidic material, have excellent ageing resistance; and the material has high volume resistivity and excellent PID resistance, and is widely used as a material for packaging solar photovoltaic cells.
However, due to the nonpolar characteristic of POE, the compatibility of the auxiliary agent component in the adhesive film and the POE matrix is poor, so that the auxiliary agent in the POE single-layer adhesive film is easy to separate out and migrate to the surface of the adhesive film in the lamination process of the battery pack, and the problems of slippage, bubbles and the like of the battery piece are caused, and the production efficiency and the yield of the photovoltaic battery pack are affected.
In order to solve the problem that the lamination quality of the assembly is affected due to precipitation of an auxiliary agent in the lamination process of the assembly, the conventional method in the industry is to compound a layer of other polar resin layer on the surface of the POE adhesive film; as described in patent CN205364743, a layer of ethylene-vinyl acetate (EVA) film layer or polyvinyl butyral film layer or ionomer layer or polyurethane layer is laminated on the POE film layer, and the polar resin layer is oriented to the battery plate during lamination; the problem of component migration is solved by utilizing the characteristic of good compatibility of the polar resin and the polar auxiliary agent, so that the problems of slippage, merging, air bubbles and the like of the battery sheet in the lamination process are solved.
However, the composite adhesive film formed by the method is formed by combining different adhesive film layers together only through physical force; because POE is a nonpolar material, the compatibility of POE and a polar material of a surface layer is poor, the interlayer physical binding force is weak, and the interlayer separation of the composite adhesive film is easy to occur in the use process of the battery assembly, thereby influencing the normal use of the battery assembly.
Therefore, there is a need for an encapsulant film for photovoltaic cells with high interlayer bonding force.
Disclosure of Invention
The invention aims to provide a packaging adhesive film for a photovoltaic cell, which has high interlayer bonding force and overcomes the defects in the prior art.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a high interlayer bonding force's encapsulation glued membrane for photovoltaic cell, includes: a plurality of polyolefin elastomer adhesive film layers, a plurality of adhesive film layers and a plurality of compatible film layers;
wherein, a plurality of said polyolefin elastomer glue film layers and a plurality of said glue film layers are laminated alternately, each said polyolefin elastomer glue film layer and each said glue film layer are equipped with a said compatible film layer; the adhesive film layer and the polyolefin elastomer adhesive film layer are made of different adhesive film materials; the compatible film layer is a polyolefin elastomer graft layer.
Preferably, the polyolefin elastomer adhesive film layer is a copolymer elastomer POE layer of ethylene and butene or octene.
Preferably, the adhesive film material of the adhesive film layer is at least one selected from ethylene-vinyl acetate adhesive film, polyvinyl butyral adhesive film, ionomer adhesive film and polyurethane adhesive film.
Preferably, the compatible film layer selects the grafting monomer according to the adhesive film material of the adhesive film layer.
Preferably, the graft material of the compatible film layer is at least one selected from polyolefin elastomer grafted maleic anhydride, polyolefin elastomer grafted ethylene-vinyl acetate, polyolefin elastomer grafted ethylene-acrylic acid copolymer, polyolefin elastomer grafted ionomer, polyolefin elastomer grafted polyurethane, polyolefin elastomer grafted glycidyl methacrylate and polyolefin elastomer grafted polyvinyl butyral.
Preferably, the thickness of the polyolefin elastomer adhesive film layer is 0.1mm-1.3mm.
Preferably, the thickness of the adhesive film layer is 0.02mm-0.7mm.
Preferably, the thickness of the compatible film layer is 0.005mm-0.3mm.
Preferably, the polyolefin elastomer adhesive film layer and the adhesive film layer further include: a cross-linking agent, a co-cross-linking agent, a coupling agent, a UV stabilizer, a UV absorber, or an antioxidant.
Compared with the prior art, the invention has the following technical effects:
according to the packaging adhesive film for the photovoltaic cell, a compatible film layer is added between a polyolefin elastomer adhesive film layer and an adhesive film layer; the compatible film layer material is POE grafted copolymer, and in the lamination process of the adhesive film, the POE molecular chain in the graft has good compatibility with the POE adhesive film, and meanwhile, the polarity or the reactive graft at the other end of the POE graft can react with the polar film of the surface layer to form good chemical compatibility, so that the interlayer binding force of the composite film is greatly improved and the combination of chemical bonds is formed through the bridge action of the compatible film layer, and the problem that the composite film is easy to physically delaminate is solved.
Drawings
Fig. 1 is a schematic structural diagram of a packaging adhesive film for a photovoltaic cell with high interlayer bonding force;
wherein, the reference numerals include: a polyolefin film layer 110; a glue film layer 120; compatible film layer 130.
Fig. 2 is a schematic structural diagram of another packaging adhesive film for a photovoltaic cell with high interlayer bonding force;
wherein, the reference numerals include: a polyolefin film layer 110; a first adhesive film layer 121; a second adhesive film 122; a first compatible film layer 131; a second compatible film layer 132.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
The invention is further described below with reference to the drawings and specific examples, which are not intended to be limiting.
Fig. 1 is a schematic structural diagram of a packaging adhesive film for a photovoltaic cell with high interlayer bonding force. An encapsulant film for a photovoltaic cell with high interlayer bonding force, comprising: a plurality of functional film layers and compatible film layers arranged between two adjacent functional film layers. The functional film layer is used for providing functions capable of meeting the requirements of the photovoltaic cell packaging adhesive film, such as light transmittance, peeling strength, high temperature resistance, humidity resistance, UV light resistance and the like; the compatible film layer is used for improving interlayer binding force among a plurality of functional film layers and reducing the possibility of interlayer separation of the packaging adhesive film for the photovoltaic cell in each working environment. Each functional layer/compatible film layer is uniform in material and property. In some embodiments, the functional film layer comprises: a plurality of polyolefin adhesive film layers and a plurality of adhesive film layers; the polyolefin adhesive film layers and the adhesive film layers are alternately laminated, namely, the functional layers closest to the polyolefin adhesive film layers are adhesive film layers, and the functional layers closest to the adhesive film layers are polyolefin adhesive film layers. A compatible film layer is arranged between each polyolefin film layer and each film layer. In some embodiments, the polyolefin film layers are the same. In some embodiments, any one of the plurality of adhesive film layers is different from the plurality of polyolefin adhesive film layers. The compatible film layer is determined according to the materials of the polyolefin film layer and the film layer which are close to the compatible film layer. In some embodiments, the plurality of compatible films are the same, and the material of each of the plurality of compatible films is determined only by the material of the adjacent film.
In some embodiments, the encapsulation film for a photovoltaic cell with high interlayer bonding force comprises: a polyolefin film layer 110, a film layer 120, and a compatible film layer 130 disposed between the polyolefin film layer 110 and the film layer 120. The polyolefin film layer 110 and the film layer 120 are different in material. In some embodiments, the polyolefin film layer 110 is a polyolefin elastomer (POE) film. In some embodiments, the material of the film layer 120 includes, but is not limited to, one of ethylene-vinyl acetate film, polyvinyl butyral film, ionomer film, polyurethane film, etc. In some embodiments, the compatible film 130 is a polyolefin elastomer graft and is determined by the materials of the adjacent polyolefin film 110 and film 120. The material of the compatible film layer 130 includes, but is not limited to, one of polyolefin elastomer grafted maleic anhydride, polyolefin elastomer grafted ethylene-vinyl acetate, polyolefin elastomer grafted ethylene-acrylic acid copolymer, polyolefin elastomer grafted ionomer, polyolefin elastomer grafted polyurethane, polyolefin elastomer grafted glycidyl methacrylate, polyolefin elastomer grafted polyvinyl butyral, etc.
Example 1
The embodiment provides a packaging adhesive film for a photovoltaic cell with high interlayer bonding force, wherein a polyolefin adhesive film layer 110 is a polyolefin elastomer (POE) adhesive film; the adhesive film layer 120 is an ethylene-vinyl acetate (EVA) adhesive film; the compatible film 130 is POE grafted ethylene vinyl acetate;
as a preferred embodiment, the thickness of the polyolefin film layer 110 is 0.1mm; the thickness of the adhesive film layer 120 is 0.02mm; the thickness of the compatible film layer 130 is 0.005mm;
as another preferred embodiment, the polyolefin film layer 110 and the adhesive film layer 120 further include: crosslinking agents, co-crosslinking agents, coupling agents, UV stabilizers, UV absorbers.
Example 2
The embodiment provides another packaging adhesive film for a photovoltaic cell with high interlayer bonding force, wherein the polyolefin adhesive film layer 110 is a polyolefin elastomer (POE) adhesive film; the adhesive film layer 120 is a polyvinyl butyral (PVB) adhesive film; the compatible film layer 130 is POE grafted polyvinyl butyral;
as a preferred embodiment, the thickness of the polyolefin film layer 110 is 1.3mm; the thickness of the adhesive film layer 120 is 0.7mm; the thickness of the compatible film layer 130 is 0.3mm;
as another preferred embodiment, the polyolefin film layer 110 further includes: crosslinking agents, co-crosslinking agents, UV stabilizers, UV absorbers and antioxidants.
Example 3
The embodiment provides another packaging adhesive film for a photovoltaic cell with high interlayer bonding force, wherein the polyolefin adhesive film layer 110 is a polyolefin elastomer (POE) adhesive film; the adhesive film layer 120 is a polyurethane adhesive film; the compatible film 130 is POE grafted polyurethane;
as a preferred embodiment, the thickness of the polyolefin film layer 110 is 0.4mm; the thickness of the adhesive film layer 120 is 0.2mm; the thickness of the compatible film layer 130 is 0.11mm;
as another preferred embodiment, the polyolefin film layer 110 further includes: crosslinking agents, co-crosslinking agents, coupling agents, UV stabilizers, UV absorbers and antioxidants.
Fig. 2 is a schematic structural diagram of another packaging adhesive film for a photovoltaic cell with high interlayer bonding force. In some embodiments, the encapsulation film for a photovoltaic cell with high interlayer bonding force comprises: a polyolefin film layer 110, a first film layer 121, a second film layer 122, a first compatible film layer 131, and a second compatible film layer 132. The arrangement modes of the film layers are a first adhesive film layer 121, a first compatible film layer 131, a polyolefin adhesive film layer 110, a second compatible film layer 132 and a second adhesive film layer 122 in sequence. In some embodiments, the polyolefin film layer 110 is a polyolefin elastomer (POE) film. In some embodiments, the first adhesive film layer 121 and the second adhesive film layer 122 are made of the same material. In some embodiments, the first adhesive film layer 121 and the second adhesive film layer 122 are made of different materials. In some embodiments, the materials of the first adhesive film layer 121 and the second adhesive film layer 122 include, but are not limited to, at least one of ethylene-vinyl acetate adhesive film, polyvinyl butyral adhesive film, ionomer adhesive film, polyurethane adhesive film, and the like. The material of the one or more compatible film layers includes, but is not limited to, at least one of polyolefin elastomer grafted maleic anhydride, polyolefin elastomer grafted ethylene-vinyl acetate, polyolefin elastomer grafted ethylene-acrylic acid copolymer, polyolefin elastomer grafted ionomer, polyolefin elastomer grafted polyurethane, polyolefin elastomer grafted glycidyl methacrylate, polyolefin elastomer grafted polyvinyl butyral, and the like.
Example 4
The embodiment provides another packaging adhesive film for a photovoltaic cell with high interlayer bonding force, wherein the polyolefin adhesive film layer 110 is a polyolefin elastomer (POE) adhesive film; the first adhesive film layer 121 and the second adhesive film layer 122 are ethylene-vinyl acetate (EVA) adhesive films; the first compatible film layer 131 and the second compatible film layer 132 are both POE grafted maleic anhydride;
as a preferred embodiment, the thickness of the polyolefin film layer 110 is 0.8mm; the thickness of the first adhesive film layer 121 and the second adhesive film layer 122 is 0.44mm; the thickness of the first compatible film layer 131 and the second compatible film layer 132 is 0.20mm;
as another preferred embodiment, the polyolefin film layer 110 and the first and second film layers 121 and 122 further include: crosslinking agents, coupling agents, UV stabilizers, UV absorbers and antioxidants.
Example 5
The embodiment provides another packaging adhesive film for a photovoltaic cell with high interlayer bonding force, wherein the polyolefin adhesive film layer 110 is a polyolefin elastomer (POE) adhesive film; the first adhesive film layer 121 is an ethylene-vinyl acetate (EVA) adhesive film; the second film layer 122 is a polyvinyl butyral (PVB) film; the first compatible film 131 is POE grafted maleic anhydride; the second compatible film 132 is POE grafted polyvinyl butyral;
as a preferred embodiment, the thickness of the polyolefin film layer 110 is 1.12mm; the thickness of the first adhesive film layer 121 is 0.65mm; the thickness of the second adhesive film 122 is 0.55mm; the thickness of the first compatible film layer 131 is 0.22mm; the thickness of the second compatible film 132 is 0.30mm;
as another preferred embodiment, the polyolefin film layer 110 and the first and second film layers 121 and 122 further include: crosslinking agents, co-crosslinking agents, coupling agents, UV stabilizers, UV absorbers and antioxidants.
Based on the embodiments listed in the present specification, the technical schemes of simply increasing the number of functional layers, selecting different types of second adhesive film layers, selecting different positions in the whole packaging adhesive film, and adopting different compatilizers are not beyond the technical scheme scope disclosed in the patent specification of the present invention.
Detection examples
The laminated adhesive film was tested for moisture and heat resistance according to the method of IEC 61215-2:2016, whether the adhesive film was layered (the experimental temperature of damp and heat was 85 ℃, the relative humidity was 85%, and the time was 1000 hours), the laminated adhesive film was tested for UV resistance according to the method of IEC 61215-2:2016, whether the adhesive film was layered (the experimental temperature was 60 ℃, and the irradiation intensity was 120 kwh), and the results are shown in Table 1.
TABLE 1
Example 1 Example 2 Example 3 Example 4 Example 5
Moisture and heat resistance No delamination No delamination No delamination No delamination No delamination
UV resistance No delamination No delamination No delamination No delamination No delamination
As can be seen from Table 1, the polyolefin photovoltaic packaging adhesive film prepared by the invention has good wet heat resistance and UV resistance, and simultaneously the transmittance, the water vapor barrier property, the peel strength with glass and backboard and the like of the adhesive film can meet the packaging use requirements of the solar photovoltaic cell module.
In summary, according to the packaging adhesive film for the photovoltaic cell, a compatible film layer is added between the polyolefin elastomer adhesive film layer and the adhesive film layer; the compatible film layer material is POE grafted copolymer, and in the lamination process of the adhesive film, the POE molecular chain in the graft has good compatibility with the POE adhesive film, and meanwhile, the polarity or the reactive graft at the other end of the POE graft can react with the polar film of the surface layer to form good chemical compatibility, so that the interlayer binding force of the composite film is greatly improved and the combination of chemical bonds is formed through the bridge action of the compatible film layer, and the problem that the composite film is easy to physically delaminate is solved.
The foregoing description is only illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, and it will be appreciated by those skilled in the art that equivalent substitutions and obvious variations may be made using the description and illustrations of the present invention, and are intended to be included within the scope of the present invention.

Claims (6)

1. The utility model provides a high interlayer bonding force's encapsulation glued membrane for photovoltaic cell which characterized in that includes: the first adhesive film layer, the first compatible film layer, the polyolefin elastomer adhesive film layer, the second compatible film layer and the second adhesive film layer are sequentially arranged;
wherein, the adhesive film materials of the first adhesive film layer and the second adhesive film layer are respectively and independently selected from at least one of ethylene-vinyl acetate adhesive film, polyvinyl butyral adhesive film, ionomer adhesive film and polyurethane adhesive film;
wherein the polyolefin elastomer adhesive film layer is a copolymer elastomer POE layer of ethylene and butylene or octene;
wherein the compatible film layer is a polyolefin elastomer graft layer; the compatible film layer selects grafting monomers according to the adhesive film material of the adhesive film layer.
2. The packaging adhesive film for a photovoltaic cell according to claim 1, wherein the graft material of the compatible film layer is at least one selected from the group consisting of polyolefin elastomer grafted maleic anhydride, polyolefin elastomer grafted ethylene-vinyl acetate, polyolefin elastomer grafted ethylene-acrylic acid copolymer, polyolefin elastomer grafted ionomer, polyolefin elastomer grafted polyurethane, polyolefin elastomer grafted glycidyl methacrylate, and polyolefin elastomer grafted polyvinyl butyral.
3. The packaging film for a photovoltaic cell according to claim 1, wherein the polyolefin elastomer film layer has a thickness of 0.1mm to 1.3mm.
4. The packaging film for a photovoltaic cell according to claim 1, wherein the thickness of the film layer is 0.02mm to 0.7mm.
5. The packaging film for a photovoltaic cell according to claim 1, wherein the thickness of the compatible film layer is 0.005mm to 0.3mm.
6. The packaging adhesive film for a photovoltaic cell according to claim 1, wherein the polyolefin elastomer adhesive film layer and the adhesive film layer further comprise: a cross-linking agent, a co-cross-linking agent, a coupling agent, a UV stabilizer, a UV absorber, or an antioxidant.
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CN116200131A (en) * 2023-03-24 2023-06-02 通威太阳能（成都）有限公司 Modified polyvinyl butyral adhesive film, preparation method thereof and solar cell module
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105330928A (en) * 2015-12-11 2016-02-17 广州鹿山新材料股份有限公司 Polyolefin photovoltaic membrane high in peel strength retention rate
WO2016107403A1 (en) * 2014-12-31 2016-07-07 广州鹿山新材料股份有限公司 Anti-reflective polyolefin photovoltaic module encapsulation adhesive film and preparation method therefor
CN111334202A (en) * 2020-03-02 2020-06-26 上海海优威新材料股份有限公司 Hot melt adhesive film
CN111863996A (en) * 2020-07-27 2020-10-30 苏州赛伍应用技术股份有限公司 Photovoltaic module containing multilayer packaging adhesive film and preparation method thereof
CN212323012U (en) * 2020-07-27 2021-01-08 苏州赛伍应用技术股份有限公司 Photovoltaic module containing multilayer packaging adhesive film

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016107403A1 (en) * 2014-12-31 2016-07-07 广州鹿山新材料股份有限公司 Anti-reflective polyolefin photovoltaic module encapsulation adhesive film and preparation method therefor
CN105330928A (en) * 2015-12-11 2016-02-17 广州鹿山新材料股份有限公司 Polyolefin photovoltaic membrane high in peel strength retention rate
CN111334202A (en) * 2020-03-02 2020-06-26 上海海优威新材料股份有限公司 Hot melt adhesive film
CN111863996A (en) * 2020-07-27 2020-10-30 苏州赛伍应用技术股份有限公司 Photovoltaic module containing multilayer packaging adhesive film and preparation method thereof
CN212323012U (en) * 2020-07-27 2021-01-08 苏州赛伍应用技术股份有限公司 Photovoltaic module containing multilayer packaging adhesive film

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王珏等.poe.《塑料改性实用技术与应用》.2014,第216页. *

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