CN105538850A - Novel photovoltaic packaging application type modified composite membrane and preparation method thereof - Google Patents

Novel photovoltaic packaging application type modified composite membrane and preparation method thereof Download PDF

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Publication number
CN105538850A
CN105538850A CN201511013670.8A CN201511013670A CN105538850A CN 105538850 A CN105538850 A CN 105538850A CN 201511013670 A CN201511013670 A CN 201511013670A CN 105538850 A CN105538850 A CN 105538850A
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CN
China
Prior art keywords
layer
poe
gross mass
composite membrane
modified polyolefin
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201511013670.8A
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Chinese (zh)
Inventor
卞姣
王军林
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YIXING WON FILM Co Ltd
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YIXING WON FILM Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to CN201511013670.8A priority Critical patent/CN105538850A/en
Publication of CN105538850A publication Critical patent/CN105538850A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/327—Layered products comprising a layer of synthetic resin comprising polyolefins comprising polyolefins obtained by a metallocene or single-site catalyst
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/02—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by a sequence of laminating steps, e.g. by adding new layers at consecutive laminating stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
    • B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B32B2250/246—All polymers belonging to those covered by groups B32B27/32 and B32B27/30
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/10—Batteries

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Photovoltaic Devices (AREA)
  • Laminated Bodies (AREA)
  • Packages (AREA)

Abstract

The invention discloses a novel photovoltaic packaging application type modified composite membrane and a preparation method thereof. According to the structure of the composite membrane, a modified polyolefin layer, a first adhesive layer, a polyester film base material layer, a second adhesive layer and a cross-linking POE layer are respectively arranged from the top layer to the bottom layer. The composite membrane is a three-layer-structured modified backboard membrane, a fluorine-containing membrane is replaced with a functionalized modified polyolefin layer, meanwhile, a POE membrane is cross-linked, and the preparation performance is excellent.

Description

A kind of Novel photovoltaic package application class modification composite membrane and preparation method thereof
Technical field
The present invention relates to laminated film technical field, specifically a kind of Novel photovoltaic package application class modification composite membrane and preparation method thereof.
Background technology
Backboard membrane is the indispensable protectiveness material of solar module.Backboard membrane is positioned at the outermost layer at the back side of solar panel, plays protection and supporting role, require backboard to have wet and heat ageing resistant, resistant of high or low temperature, hydrolytic resistance, corrosion resistance and continue to resist the ability of illumination direct projection cell piece.
Existing market main flow backboard mainly contains fluorine material backboard and multilayer functional PET composite membrane backboard.Because fluorine-containing layer is as outermost protective layer in fluorine-containing backboard, the intensity of material is the most weak, easily by the scratch of extraneous sharp object, affects the anti-aging function of internal material, and fluorine-contained film difficulty in all plastic sheeting processing is maximum, and technique is the most complicated, and cost is also the highest.The use of fluorine material, also makes the pollution caused in the potential pollution of environment and processing become possibility.Multilayer functional PET composite membrane backboard is by obtaining functionalization PET compound, and PET provides excellent mechanical performance, however under comparatively extreme ultraviolet long-term irradiation and hot and humid environment Long-Time Service.Polyester is easily hydrolyzed or degrades, gradually efflorescence, affects the mechanical performance of material to a great extent.
The thermoplastic elastomer (TPE) with narrow molecular weight distribution and the distribution of uniform short-chain branch of polyolefin elastomer (polyolefinelastomer) (POE) to be DOW chemical company of the U.S. with metallocene be catalyst.Its comonomer octene content is high and be singlely uniformly distributed, and narrow molecular weight distribution, these characteristics impart the excellent material property of POE resin.Not containing unsaturated double-bond in POE resin molecule, there is good heat endurance, weatherability, resistance to ag(e)ing, remarkable toughness has good processability simultaneously.Eva film is the material being mainly used in encapsulating solar cell at present, but it comes with some shortcomings, and as aging in easy xanthochromia, weatherability is poor, service life is short.The fusing point of POE is lower, and heat resistance and intensity are also lower, and by being cross-linked by POE, inner formation network structure, improves mechanical property and the heat resistances such as hot strength.
Summary of the invention
The present invention, in order to overcome some open defects of existing market main flow backboard, improves comprehensive cost performance, provides one functionalization modified polyolefin hydrocarbon layers to replace fluoropolymer membrane, is cross-linked by POE film, the three-decker modification backboard membrane of processability excellence simultaneously.
To achieve these goals, the present invention adopts following technical scheme:
A kind of Novel photovoltaic package application class modification composite membrane, this composite membrane is followed successively by modified polyolefin hydrocarbon layers, the first adhesive layer, polyester film substrate layer, the second adhesive layer and crosslinked POE layer from top to bottom.
The thickness of described polyester film substrate layer is 100 μm-250 μm, and the thickness of crosslinked POE layer is 100-200 μm.
Described modified polyolefin hydrocarbon layers comprises olefin resin, organic uv absorbers, gross mass 0.1%-5% Inorganic antioxidant hybrid, wherein organic uv absorbers is the 0.1%-5% of modified polyolefin hydrocarbon layers gross mass, and Inorganic antioxidant hybrid is the 0.1%-5% of modified polyolefin hydrocarbon layers gross mass.
Described organic uv absorbers is selected from the one in salicylate class, benzophenone class, benzotriazole, group-substituted acrylonitrile, and Inorganic antioxidant is selected from the one of talcum powder, calcium carbonate, titanium dioxide, carbon black
Described crosslinked POE layer comprises POE resin, silane coupler, crosslinking agent and age resister, wherein silane coupler is the 0.1%-5% of crosslinked POE layer gross mass, crosslinking agent is the 0.03%-2% of crosslinked POE layer gross mass, and age resister is the 0.01-1% of crosslinked POE layer gross mass.
The invention also discloses a kind of preparation method of Novel photovoltaic package application class modification composite membrane, comprise the following steps:
1) vistanex is mixed through high speed mixer with organic uv absorbers, Inorganic antioxidant hybrid, extruding pelletization is carried out by double screw extruder, modified polyolefin resin is obtained again through extruding curtain coating, wherein organic uv absorbers is the 0.1%-5% of modified polyolefin hydrocarbon layers gross mass, and Inorganic antioxidant hybrid is the 0.1%-5% of modified polyolefin hydrocarbon layers gross mass;
2) by POE resin and silane coupler, crosslinking agent, age resister mixed at high speed in double screw extruder after granulation, crosslinked with silicane modification POE resin is obtained through extruding curtain coating, wherein silane coupler is the 0.1%-5% of crosslinked POE layer gross mass, crosslinking agent is the 0.03%-2% of crosslinked POE layer gross mass, and age resister is the 0.01-1% of crosslinked POE layer gross mass;
3) choose polyester film as base material, material is by the surface tension of plasma chemical modifying reinforced polyester film surface.
4) modified polyolefin resin respectively step 1) obtained and step 2) the cross-linking modified POE mixture that obtains melt extruded by extruder and obtains improved polyalkene film and modification POE film, pressing compound is carried out respectively in the two sides of the base material film chosen with step 3) again, obtains the modification laminated film of three-decker.
Beneficial effect of the present invention is: replace fluoropolymer membrane by functionalization modified polyolefin hydrocarbon layers, be cross-linked by POE film, the three-decker modification backboard membrane of processability excellence simultaneously.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of Novel photovoltaic package application class modification composite membrane.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Structure of the present invention as shown in Figure 1, is respectively modified polypropene layer 1, first adhesive layer 2, polyester film PET base material layer 3, second adhesive layer 4 and crosslinked POE layer 5 from top to bottom.
Embodiment 1
The thickness of described polyester film substrate layer is 125 μm, and the thickness of crosslinked POE layer is 150 μm.
Described modified polyolefin hydrocarbon layers comprises acrylic resin, organic uv absorbers, Inorganic antioxidant hybrid, wherein organic uv absorbers is 0.1% of modified polyolefin hydrocarbon layers gross mass, and Inorganic antioxidant hybrid is 0.1% of modified polyolefin hydrocarbon layers gross mass.
Described organic uv absorbers is selected from salicylate class, and Inorganic antioxidant is selected from talcum powder.
Described crosslinked POE layer comprises POE resin, silane coupler, crosslinking agent and age resister, wherein silane coupler is 0.1% of crosslinked POE layer gross mass, crosslinking agent is 0.03% of crosslinked POE layer gross mass, and age resister is 0.01% of crosslinked POE layer gross mass.
Embodiment 2
The thickness of described polyester film substrate layer is 200 μm, and the thickness of crosslinked POE layer is 150 μm.
Described modified polyolefin hydrocarbon layers comprises acrylic resin, organic uv absorbers, Inorganic antioxidant hybrid, wherein organic uv absorbers is 1% of modified polyolefin hydrocarbon layers gross mass, and Inorganic antioxidant hybrid is 0.5% of modified polyolefin hydrocarbon layers gross mass.
Described organic uv absorbers is selected from benzotriazole, and Inorganic antioxidant is selected from titanium dioxide.
Described crosslinked POE layer comprises POE resin, silane coupler, crosslinking agent and age resister, and wherein silane coupler is 0.5% of crosslinked POE layer gross mass, and crosslinking agent is 0.1% of crosslinked POE layer gross mass, and age resister is 0.1% of crosslinked POE layer gross mass.
Embodiment 3
The thickness of described polyester film substrate layer is 250 μm, and the thickness of crosslinked POE layer is 200 μm.
Described modified polyolefin hydrocarbon layers comprises acrylic resin, organic uv absorbers, Inorganic antioxidant hybrid, wherein organic uv absorbers is 5% of modified polyolefin hydrocarbon layers gross mass, and Inorganic antioxidant hybrid is 5% of modified polyolefin hydrocarbon layers gross mass.
Described organic uv absorbers is selected from group-substituted acrylonitrile, and Inorganic antioxidant is selected from carbon black.
Described crosslinked POE layer comprises POE resin, silane coupler, crosslinking agent and age resister, and wherein silane coupler is 5% of crosslinked POE layer gross mass, and crosslinking agent is 2% of crosslinked POE layer gross mass, and age resister is 1% of crosslinked POE layer gross mass.
Embody rule approach of the present invention is a lot, and the above is only the preferred embodiment of the present invention, should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvement, these improvement also should be considered as protection scope of the present invention.

Claims (7)

1. a Novel photovoltaic package application class modification composite membrane, is characterized in that: this composite membrane is followed successively by modified polyolefin hydrocarbon layers (1), the first adhesive layer (2), polyester film substrate layer (3), the second adhesive layer (4) and crosslinked POE layer (5) from top to bottom.
2. Novel photovoltaic package application class modification composite membrane according to claim 1, is characterized in that: the thickness of described polyester film substrate layer (3) is 100 μm-250 μm, and the thickness of crosslinked POE layer (5) is 100-200 μm.
3. Novel photovoltaic package application class modification composite membrane according to claim 1, it is characterized in that: described modified polyolefin hydrocarbon layers (1) comprises olefin resin, organic uv absorbers, gross mass 0.1%-5% Inorganic antioxidant hybrid, wherein organic uv absorbers is the 0.1%-5% of modified polyolefin hydrocarbon layers (1) gross mass, and Inorganic antioxidant hybrid is the 0.1%-5% of modified polyolefin hydrocarbon layers (1) gross mass.
4. Novel photovoltaic package application class modification composite membrane according to claim 3, it is characterized in that: described organic uv absorbers is selected from the one in salicylate class, benzophenone class, benzotriazole, group-substituted acrylonitrile, and Inorganic antioxidant is selected from the one of talcum powder, calcium carbonate, titanium dioxide, carbon black.
5. Novel photovoltaic package application class modification composite membrane according to claim 1, it is characterized in that: described crosslinked POE layer (5) comprises POE resin, silane coupler, crosslinking agent and age resister, wherein silane coupler is the 0.1%-5% of crosslinked POE layer (5) gross mass, crosslinking agent is the 0.03%-2% of crosslinked POE layer (5) gross mass, and age resister is the 0.01-1% of crosslinked POE layer (5) gross mass.
6. a preparation method for Novel photovoltaic package application class modification composite membrane, is characterized in that comprising the following steps:
1) vistanex is mixed through high speed mixer with organic uv absorbers, Inorganic antioxidant hybrid, extruding pelletization is carried out by double screw extruder, modified polyolefin resin is obtained again through extruding curtain coating, wherein organic uv absorbers is the 0.1%-5% of modified polyolefin hydrocarbon layers gross mass, and Inorganic antioxidant hybrid is the 0.1%-5% of modified polyolefin hydrocarbon layers gross mass;
2) by POE resin and silane coupler, crosslinking agent, age resister mixed at high speed in double screw extruder after granulation, crosslinked with silicane modification POE resin is obtained through extruding curtain coating, wherein silane coupler is the 0.1%-5% of crosslinked POE layer gross mass, crosslinking agent is the 0.03%-2% of crosslinked POE layer gross mass, and age resister is the 0.01-1% of crosslinked POE layer gross mass;
3) polyester film is chosen as base material;
4) modified polyolefin resin respectively step 1) obtained and step 2) the cross-linking modified POE mixture that obtains melt extruded by extruder and obtains improved polyalkene film and modification POE film, pressing compound is carried out respectively in the two sides of the base material film chosen with step 3) again, obtains the modification laminated film of three-decker.
7. the preparation method of Novel photovoltaic package application class modification composite membrane according to claim 6, is characterized in that: the polyester film base material selected of step 3) is by the surface tension of plasma chemical modifying reinforced polyester film surface.
CN201511013670.8A 2015-12-31 2015-12-31 Novel photovoltaic packaging application type modified composite membrane and preparation method thereof Pending CN105538850A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107325745A (en) * 2017-08-08 2017-11-07 常州斯威克新材料科技有限公司 A kind of high-performance compound inslation isolating bar and preparation method thereof
CN110286066A (en) * 2018-09-20 2019-09-27 中国科学院上海硅酸盐研究所 A kind of measuring device of sessile drop method measurement surface tension of high-temperature melt
CN114701229A (en) * 2021-12-31 2022-07-05 浙江中聚材料有限公司 Solar composite back plate with three-layer structure and preparation method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003060218A (en) * 2001-08-21 2003-02-28 Toray Ind Inc Solar cell back sealing film and solar cell using the same
CN103289582A (en) * 2013-05-21 2013-09-11 上海海优威电子技术有限公司 Packaging adhesive film for cross-linked POE (polyolefin elastomer) solar photovoltaic module
CN105015121A (en) * 2015-08-24 2015-11-04 宜兴市王者塑封有限公司 Adhesive film integrated modified polyolefin backboard film and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003060218A (en) * 2001-08-21 2003-02-28 Toray Ind Inc Solar cell back sealing film and solar cell using the same
CN103289582A (en) * 2013-05-21 2013-09-11 上海海优威电子技术有限公司 Packaging adhesive film for cross-linked POE (polyolefin elastomer) solar photovoltaic module
CN105015121A (en) * 2015-08-24 2015-11-04 宜兴市王者塑封有限公司 Adhesive film integrated modified polyolefin backboard film and preparation method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107325745A (en) * 2017-08-08 2017-11-07 常州斯威克新材料科技有限公司 A kind of high-performance compound inslation isolating bar and preparation method thereof
CN110286066A (en) * 2018-09-20 2019-09-27 中国科学院上海硅酸盐研究所 A kind of measuring device of sessile drop method measurement surface tension of high-temperature melt
CN114701229A (en) * 2021-12-31 2022-07-05 浙江中聚材料有限公司 Solar composite back plate with three-layer structure and preparation method thereof
CN114701229B (en) * 2021-12-31 2024-03-15 浙江中聚材料有限公司 Solar composite backboard with three-layer structure and preparation method thereof

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