CN106960891A - A kind of photovoltaic transparent composite membrane and preparation method and application - Google Patents

A kind of photovoltaic transparent composite membrane and preparation method and application Download PDF

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Publication number
CN106960891A
CN106960891A CN201710138453.4A CN201710138453A CN106960891A CN 106960891 A CN106960891 A CN 106960891A CN 201710138453 A CN201710138453 A CN 201710138453A CN 106960891 A CN106960891 A CN 106960891A
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China
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composite membrane
acrylate
tack coat
mass parts
supporting layer
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曹明杰
李志强
林维红
周光大
林建华
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Hangzhou Forster Applied Materials Ltd By Share Ltd
Hangzhou First Applied Material Co Ltd
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Hangzhou Forster Applied Materials Ltd By Share Ltd
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Priority to CN201710138453.4A priority Critical patent/CN106960891A/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor 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
    • H01L31/04Semiconductor 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
    • H01L31/054Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
    • H01L31/055Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means where light is absorbed and re-emitted at a different wavelength by the optical element directly associated or integrated with the PV cell, e.g. by using luminescent material, fluorescent concentrators or up-conversion arrangements
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor 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
    • H01L31/02Details
    • H01L31/0224Electrodes
    • H01L31/022408Electrodes for devices characterised by at least one potential jump barrier or surface barrier
    • H01L31/022425Electrodes for devices characterised by at least one potential jump barrier or surface barrier for solar cells
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/52PV systems with concentrators

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

The invention discloses a kind of photovoltaic transparent composite membrane and preparation method and application, the transparent composite membrane includes off-style paper layer and functional layer, functional layer includes supporting layer and tack coat again, simultaneously in supporting layer and tack coat at least one layer mixed with photothermal converting agent, part ultraviolet light can be converted to visible ray.Supporting layer lower surface is connected with tack coat, and upper and lower surface, which is flat surface or an at least surface, has necessarily sunken light micro-structural.Tack coat is pressure-sensitive acrylate, has preferable adhesive property to metal material.The transparent composite membrane can be applied to many main grids, without main grid photovoltaic module, plays a part of laminating copper wire and cell piece, with high transmittance and excellent anti-ultraviolet ageing performance, disclosure satisfy that the use requirement of photovoltaic module.

Description

A kind of photovoltaic transparent composite membrane and preparation method and application
Technical field
The invention belongs to photovoltaic application field, it is related to a kind of photovoltaic transparent composite membrane and preparation method and application.
Background technology
Increasingly serious with the energy and environmental problem, the utilization of clean reproducible energy is very urgent, wherein photovoltaic Generation technology developed by leaps and bounds, increasingly mature, and the application of photovoltaic cell is also gradually popularized.In order to further improve photovoltaic cell Conversion efficiency, reduction prepare cost, and to realize that par is surfed the Net, new battery is continued to develop with component technology.In the prior art, account for According to leading position and large-scale commercial production and the crystal silicon battery of application, its front electrode grid line typically uses silver paste screen printing Brush, including uniformly densely covered thin grid line and three to five and the orthogonal main gate line of thin grid line.Battery front side grid line In the presence of, especially main gate line, can shield portions sunshine, so that cell photoelectric conversion efficiency is reduced, simultaneously because silver paste is big Amount is used, and is unfavorable for the reduction of manufacturing cost.Relative to conventional photovoltaic battery, efficient crystal silicon battery especially N-type PERT is two-sided Though battery, hetero-junctions HIT batteries etc. are also always to govern it with excellent opto-electronic conversion performance, of a relatively high cost Large-scale commercial production and the process for progressively substituting conventional batteries.
Therefore, further the shading-area of reduction battery, reduction silver paste have consumed the hair into battery grid line and interconnection technique Open up direction.Many main grids even dereliction gate technique by the silver-colored main grid of battery by replacing with many thin copper wires for being coated with special coating (band), greatly reduces battery front side shading-area, while reducing silver paste consumption, so as to improve the conversion efficiency of photovoltaic module, drops Low preparation cost.For N-type PERT double-side cells, hetero-junctions HIT batteries etc., silver-colored main grid, Neng Goujin are substituted using copper wire (band) One step reduces its manufacturing cost, and the target reached unanimity with conventional batteries cost is realized as early as possible.And the technology must be by tens of platings Tin thin copper wire (band) is layed on cell piece and, it is necessary to which a tunic material is by tinned copper wire (band), arrangement is solid in advance with the welding of thin grid line The fixed and support positioning in welding process.Therefore, it is necessary to a kind of transparent membrane material is developed, the transparent membrane material and tinned copper wire (band) And cell piece has preferable adhesive property, while meeting high transmission, ageing-resistant, resistant to elevated temperatures requirement.
Solar cell is less than visible light part, the introducing of photothermal converting agent for the ultraviolet portion quantum efficiency in solar spectrum Ultraviolet portion can be converted into visible light part, so as to improve the light conversion efficiency of solar cell, further the reduction sun is electric The manufacturing cost in pond.The present invention introduces photothermal converting agent in transparent membrane material, increases light translation function on the basis of original function, Applied to many main grids even without in main grid component, being conducive to further improving solar cell light conversion efficiency.
The content of the invention
The purpose of the present invention be in view of the shortcomings of the prior art, provide a kind of photovoltaic with transparent composite membrane and preparation method thereof with Using, the optical clear composite membrane has high transmittance and excellent anti-ultraviolet ageing performance, while the compound film bottom with Tinned copper wire (band) and cell piece have stronger cementability.In addition, the optical clear composite membrane has light translation function, can Part ultraviolet light is converted into visible ray.
The purpose of the present invention is achieved through the following technical solutions:A kind of optical clear composite membrane, the optical lens Bright composite membrane is made up of functional layer and off-style paper layer, functional layer include supporting layer and tack coat, supporting layer by tack coat with from Type ply of paper fits;The refraction index of supporting layer is 1.4-1.6, and tack coat refraction index is 1.5~1.7, and supporting layer refractive power Index is less than tack coat;At least one layer is mixed with the photothermal converting agent that mass content is 1-20% in supporting layer and tack coat.
Further, the material of the supporting layer is selected from polyester, polyethylene, polypropylene, polymethyl methacrylate and gathered Carbonic ester, supporting layer thickness is 10~200 μm;The upper and lower surface of the supporting layer independently is flat surface or had If the surface of dry type of inward penetration of pyogence agent light micro-structural, the sunken light micro-structural includes ball projection, tapered protrusion, micro-prism structure;The bonding Layer is pressure-sensitive acrylate;Adhesive layer thickness is 5~100 μm.
Further, the material of the supporting layer is preferably polymethacrylates or polypropylene.
Further, the photothermal converting agent is selected from rare earth ion doped metallic compound and rare earth organic complex, described In rare earth ion doped metallic compound, metallic compound includes Y2O3、La2O3、Gd2O3、TiO2、SiO2、CaSi2O2N2、 La2O2S、SrAl2O4、YVO4、GdVO4、(Y,Gd)BO3、GdAl3(BO3)4、NaYF4, rare earth ion include Sm3+、Eu3+、Yb3+、 Tb3+、Ce3+、Pr3+、Dy3+;The rare earth organic complex be rare-earth beta-diones complex, rare earth element include Eu, Gd, Tb, Y、La、Sm、Pr.The photothermal converting agent is preferably Y2O3:Eu3+、SrAl2O4:Eu2+, Dy3+And Eu (TTA)3phen。
Further, the tack coat raw material includes following components in parts by weight:
Further, described (methyl) acrylate monomer is by soft monomer and hard monomer in mass ratio 2:1-6 mixing compositions; The soft monomer is by ethyl acrylate, butyl acrylate, isobutyl acrylate, Hexyl 2-propenoate, Isooctyl acrylate monomer, acrylic acid Lauryl, benzyl acrylate, cyclohexyl acrylate, perfluoroalkyl acrylate, 2-Hydroxy ethyl acrylate, acrylic acid -2- hydroxyls One or more in base propyl ester are by any proportioning mixing composition;The hard monomer by methyl acrylate, methyl methacrylate, EMA, butyl methacrylate, THFMA, benzyl methacrylate, methacrylic acid Own ester, the hydroxy propyl ester of methacrylic acid -2, isobornyl acrylate, vinylacetate, styrene, one kind in acrylonitrile or several Plant by any proportioning mixing composition.
Further, the coupling agent is selected from silane coupler, chromium complex coupling agent and titanate coupling agent.It is preferred that Ground, coupling agent is made up of following one or more of mixing in any proportion:γ-aminopropyltrimethoxysilane, γ-aminopropyl three The blue methoxy silane of Ethoxysilane, 3- aminopropyl trimethoxysilanes, γ-(oxygen of 2,3- epoxies third) propyl group, γ-metering system Acryloxypropylethoxysilane trimethoxy silane, gamma-mercaptopropyltriethoxysilane, N- β-aminoethyl-γ-aminopropyltriethoxy dimethoxy Silane, diethylin are for MTES, dichloromethyl triethoxysilane, vinyltrimethoxy silane;It is described Diluent is by the one or more in toluene, ethyl acetate, butyl acetate, dimethyl carbonate, MEK and butanone by any Proportioning mixing composition;The initiator is azo-initiator, preferably azodiisobutyronitrile, ABVN, azo two Isobutyl dimethyl phthalate;The antioxidant is by antioxidant 245, antioxidant 1010, antioxidant 1035, antioxidant 1076, antioxidant 1098th, the one or more in antioxidant 1135 and antioxidant 3114 are by any proportioning mixing composition;The UV stabilizer by One or more in salicylic acid esters, benzophenone class, benzotriazole, group-substituted acrylonitrile, triazines and hindered amines, which are pressed, appoints Meaning proportioning mixing composition, preferably by 2- (2 '-hydroxyl -5 '-aminomethyl phenyl) BTA, 2- hydroxyl -4- methoxyl group hexichol first One or more in ketone, 2-hydroxy-4-n-octoxybenzophenone are by any proportioning mixing composition;The crosslinking agent is selected from different Cyanate, metal organic chelate, aziridine cpd.
A kind of preparation method of above-mentioned optical clear composite membrane, is comprised the steps of:
(1) photothermal converting agent is mixed in support layer material, the quality proportioning of photothermal converting agent and support layer material is 1-20: 99-80, use the techniques such as rolling process, the tape casting, blow moulding or pulling method prepare the thickness containing photothermal converting agent for 10~ 200 μm of support layer film;The quality of photothermal converting agent is the 1-20% of support layer film;
(2) 100 mass parts (methyl) acrylate monomer, 35~55 mass parts diluents are mixed, added to stirred tank It is interior, 90~100 DEG C are heated with stirring to, is reacted 5~15 hours, is during which constantly instilled 0.1~3 mass parts initiator, finally give Acrylate adhesive of the viscosity between 1000~8000cps;
(3) it is acrylate adhesive made from step 1 and 1~10 mass parts coupling agent, 0.5~5 mass parts is ultraviolet steady Determine agent, 0.3~3 mass parts antioxidant, 1~5 mass parts crosslinking agent to mix and be coated on the supporting layer of step 1 preparation, Formed and the sticking optical clear composite membrane of tool is made after the tack coat that thickness is 5~100 μm, drying;
(4) by release liners of being fitted made from step 3 on tack coat, then wind.
The preparation method of another above-mentioned optical clear composite membrane, is comprised the steps of:
(1) 100 mass parts (methyl) acrylate monomer, 35~55 mass parts diluents are mixed, added to stirred tank It is interior, 90~100 DEG C are heated with stirring to, is reacted 5~15 hours, is during which constantly instilled 0.1~3 mass parts initiator, finally give Acrylate adhesive of the viscosity between 1000~8000cps;
(2) it is acrylate adhesive made from step 1 and 1~10 mass parts coupling agent, 0.5~5 mass parts is ultraviolet steady The photothermal converting agent for determining agent, 0.3~3 part of quality antioxidant, 1~5 mass parts crosslinking agent and 1.39~45.25 mass parts is mixed And be coated on the supporting layer that thickness is 10~200 μm, being formed to be made after the tack coat that thickness is 5~100 μm, drying has The optical clear composite membrane of viscosity, the quality of photothermal converting agent is the 1-20% of tack coat;
(3) optical clear composite membrane made from step 2 is had into sticking one side laminating release liners, then wound.
A kind of above-mentioned optical clear composite membrane is in many main grids and without the application in main grid photovoltaic module.
Beneficial effects of the present invention are embodied in following several respects:
1st, by adding suitable coupling agent, there is stronger bonding between the optical clear composite membrane and metal material Power, the bonding of composite membrane and tinned copper wire can be realized at room temperature;
2nd, the optical clear composite membrane and cell piece have stronger cohesive force, can be rear after being combined with cell piece The positioning of tinned copper wire is kept in continuous process;
3rd, part ultraviolet light can be converted into visible ray, applied to light by the optical clear composite membrane mixed with photothermal converting agent Component is lied prostrate, is conducive to the lifting of photoelectric transformation efficiency and power;
4th, the optical clear composite membrane is by rational optical design, including refraction index and surface micro-structure are set Meter, with high light transmitance, enables photovoltaic module to absorb more sunshines;
5th, supporting layer and tack coat have excellent anti-ultraviolet ageing performance in the optical clear composite membrane, meet photovoltaic group The service demand of part.
Brief description of the drawings
Fig. 1 is transparent composite membrane cross-section structural representation in the preferred embodiment of the present invention;
Fig. 2 is cross section structure schematic diagram after transparent composite membrane bonding tinned copper wire in the preferred embodiment of the present invention;
Fig. 3 is overlooking the structure diagram after transparent composite membrane bonding tinned copper wire in the preferred embodiment of the present invention;
Fig. 4 is transparent composite membrane bonding tinned copper wire and cross section structure after being fitted with cell piece in the preferred embodiment of the present invention Schematic diagram;
In figure, transparent composite membrane 100, off-style paper layer 110, functional layer 120, tack coat 121, supporting layer 122, copper wire overlay film 200th, tinned copper wire 210, cell piece 310.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment to the photovoltaic that provides of the present invention with transparent composite membrane and its preparation technology and Using being described in further detail.It is pointed out that described embodiment is intended merely to facilitate the understanding of the present invention, and Any restriction effect is not played to it.
Referring to Fig. 1, the embodiment of the present invention provides a kind of photovoltaic with transparent composite membrane 100, the composite membrane includes release liners Layer 110 and functional layer 120, functional layer 120 include supporting layer 122 and tack coat 121.Supporting layer 122 is modified poly ester, gathered Any one in ethene, polypropylene, polymethyl methacrylate, makrolon, preferably polymethacrylates.Tack coat 121 be pressure-sensitive acrylate, and tack coat 121 is fitted with release liners 110.
Supporting layer 122 is polymethyl methacrylate (PMMA) film in one embodiment, and thickness is 30 μm, tack coat 121 For pressure-sensitive acrylate, thickness is 30 μm, and the composite membrane optical transmittance is 93%.Supporting layer in another embodiment 122 be polymethyl methacrylate (PMMA) film, and thickness is 100 μm, and tack coat 121 is pressure-sensitive acrylate, and thickness is 30 μm, optical transmittance is 91%.
In a comparative example, supporting layer 122 is polyester (PET) film, and thickness is 30 μm, and tack coat 121 is esters of acrylic acid Pressure sensitive adhesive, thickness is 30 μm, and the composite membrane optical transmittance is 87.5%.In another comparative example, supporting layer 122 is polypropylene (PP) film, thickness is 30 μm, and tack coat 121 is pressure-sensitive acrylate, and thickness is 30 μm, and the composite membrane optical transmittance is 85.6%.
The embodiment of the present invention also provides a kind of photovoltaic transparent composite membrane tack coat 121 and its preparation technology, the tack coat Raw material includes esters of acrylic acid adhesive and other various auxiliary agents, and tack coat has excellent ageing-resistant performance, with metal with And there is stronger cohesive force between cell piece.
Embodiment 1:A kind of photovoltaic with transparent composite membrane tack coat, in the tack coat composition of raw materials comprising it is following by weight The raw material of meter.
In above-mentioned formula, (methyl) acrylate monomer is n-butyl acrylate, 2-Hydroxy ethyl acrylate and methyl-prop Olefin(e) acid ethyl ester, weight ratio is 1:1:3.Diluent is toluene, and initiator is azodiisobutyronitrile, and coupling agent is γ-metering system Acryloxypropylethoxysilane trimethoxy silane, antioxidant selection antioxidant 1035, UV stabilizer be 2- (2 '-hydroxyl -5 '-methylbenzene Base) BTA, crosslinking agent is isocyanates.
Preparation technology is comprised the steps of:
1. (methyl) acrylate hard monomer, soft monomer, diluent are mixed by a certain percentage, add to stirred tank, 95 DEG C are heated with stirring to, is reacted 8 hours, is during which constantly instilled a certain proportion of initiator, finally give viscosity 2000cps's Acrylate adhesive;
2. by the coupling agent of acrylate adhesive made from step 1 and certain proportion (ratio in above-mentioned formula), purple Outer stabilizer, antioxidant, crosslinking agent mixing and stirring are simultaneously coated on supporting layer, and the sticking optics of tool is made after drying Transparent composite membrane;
3. optical clear composite membrane made from step 2 is had into sticking one side laminating release liners, finally wind.
Embodiment 2:A kind of photovoltaic with transparent composite membrane tack coat, in the tack coat composition of raw materials comprising it is following by weight The raw material of meter.
In above-mentioned formula, (methyl) acrylate monomer is ethyl acrylate and the hydroxy propyl ester of methacrylic acid -2, weight Than for 2:3.Diluent is butyl acetate, and initiator is ABVN, and coupling agent is 3- aminopropyl trimethoxysilanes, is resisted Oxygen agent selects antioxidant 1076, and UV stabilizer is ESCALOL 567, and crosslinking agent is isocyanates.
Preparation technology is comprised the steps of:
1. acrylate hard monomer, soft monomer, diluent are mixed by a certain percentage, add to stirred tank, stirring adds Heat is reacted 10 hours to 90 DEG C, during which constantly instills a certain proportion of initiator, finally give propylene of the viscosity in 3000cps Acid esters adhesive;
2. by the coupling agent of acrylate adhesive made from step 1 and certain proportion (ratio in above-mentioned formula), purple Outer stabilizer, antioxidant, crosslinking agent are mixed and are coated on supporting layer, and the sticking optical clear of tool is made after drying Composite membrane;
3. optical clear composite membrane made from step 2 is had into sticking one side laminating release liners, finally wind.
Embodiment 3:A kind of photovoltaic with transparent composite membrane tack coat, in the tack coat composition of raw materials comprising it is following by weight The raw material of meter.
In above-mentioned formula, (methyl) acrylate monomer is cyclohexyl acrylate, 2-Hydroxy ethyl acrylate and methyl-prop Olefin(e) acid butyl ester, weight ratio is 2:1:1.Diluent is butanone, and initiator is azo-bis-iso-dimethyl, and coupling agent is γ-first Base acryloxypropyl trimethoxy silane, antioxidant selection antioxidant 1010, UV stabilizer is 2- hydroxyl -4- methoxyl groups Benzophenone, crosslinking agent is isocyanates, and photothermal converting agent is SrAl2O4:Eu2+, Dy3+, form is nano particle, and particle diameter is 50nm。
Preparation technology is comprised the steps of:
1. acrylate hard monomer, soft monomer, diluent are mixed by a certain percentage, add to stirred tank, stirring adds Heat is reacted 8 hours to 90 DEG C, during which constantly instills a certain proportion of initiator, finally give acrylic acid of the viscosity in 5000cps Ester adhesive;
2. by the coupling agent of acrylate adhesive made from step 1 and certain proportion (ratio in above-mentioned formula), purple Outer stabilizer, antioxidant, crosslinking agent and photothermal converting agent are mixed and are coated on supporting layer, are made to have after drying and are glued The optical clear composite membrane of property;
3. optical clear composite membrane made from step 2 is had into sticking one side laminating release liners, finally wind.
Embodiment 4:A kind of photovoltaic with transparent composite membrane tack coat, in the tack coat composition of raw materials comprising it is following by weight The raw material of meter.
In above-mentioned formula, (methyl) acrylate monomer is ethyl acrylate and the hydroxy propyl ester of methacrylic acid -2, weight Than for 1:2, diluent is toluene, and initiator is azo-bis-iso-dimethyl, and coupling agent is γ-methacryloxypropyl Trimethoxy silane, antioxidant selection antioxidant 1098, UV stabilizer is the nitrogen of 2- (2 '-hydroxyl -5 '-aminomethyl phenyl) benzo three Azoles, crosslinking agent is isocyanates.
Preparation technology is comprised the steps of:
1. acrylate hard monomer, soft monomer, diluent are mixed by a certain percentage, add to stirred tank, stirring adds Heat is reacted 8 hours to 95 DEG C, during which constantly instills a certain proportion of initiator, finally give acrylic acid of the viscosity in 3000cps Ester adhesive;
2. by the coupling agent of acrylate adhesive made from step 1 and certain proportion (ratio in above-mentioned formula), purple Outer stabilizer, antioxidant, crosslinking agent are mixed and are coated on supporting layer, and the sticking optical clear of tool is made after drying Composite membrane;
3. optical clear composite membrane made from step 2 is had into sticking one side laminating release liners, finally wind.
Embodiment 5:A kind of photovoltaic with transparent composite membrane tack coat, in the tack coat composition of raw materials comprising it is following by weight The raw material of meter.
In above-mentioned formula, (methyl) acrylate monomer is cyclohexyl acrylate, 2-Hydroxy ethyl acrylate and methyl-prop Olefin(e) acid butyl ester, weight ratio is 2:1:2, diluent is toluene, and initiator is azodiisobutyronitrile, and coupling agent is γ-metering system Acryloxypropylethoxysilane trimethoxy silane, antioxidant selection antioxidant 1035, UV stabilizer is 2- hydroxyl -4- n-octyloxy hexichol Ketone, crosslinking agent is isocyanates, and photothermal converting agent is Eu (TTA)3phen。
Preparation technology is comprised the steps of:
1. acrylate hard monomer, soft monomer, diluent are mixed by a certain percentage, add to stirred tank, stirring adds Heat is reacted 8 hours to 95 DEG C, during which constantly instills a certain proportion of initiator, finally give acrylic acid of the viscosity in 5000cps Ester adhesive;
2. by the coupling agent of acrylate adhesive made from step 1 and certain proportion (ratio in above-mentioned formula), purple Outer stabilizer, antioxidant, crosslinking agent and photothermal converting agent are mixed and are coated on supporting layer, are made to have after drying and are glued The optical clear composite membrane of property;
3. optical clear composite membrane made from step 2 is had into sticking one side laminating release liners, finally wind.
The embodiment of the present invention also provides a kind of above-mentioned optical clear composite membrane and applied in without main grid photovoltaic module.Will be tin plating Copper wire (band) is Nian Jie with composite membrane, as shown in Figure 2 and Figure 3, then fits in cell piece surface, realizes tinned copper wire (band) and electricity Piece thin grid line polarization contact in pond is connected, as shown in Figure 4.Finally lay packaging adhesive film and using well known to those skilled in the art Laminating technology is packaged to battery, while realizing the welding of tinned copper wire (band) and thin grid line, forms good electrical contact. In a comparative example, directly tinned copper wire (band) is layed on cell piece, packaging adhesive film is then laid and uses this area skill Laminating technology known to art personnel is packaged to battery.As a result show, the optical clear composite membrane for not using the present invention to provide And contact laminating, final tinned copper wire (band) out of position, and can not form good electrical contact with thin grid line.And with Upper problem is able to effectively solve after optical clear composite membrane is applied.In addition, those skilled in the art can also be in the present invention Other changes are done in spirit, certainly, these changes done according to present invention spirit should all be included in the present invention claimed Within the scope of.

Claims (10)

1. a kind of optical clear composite membrane, it is characterised in that the optical clear composite membrane is made up of functional layer and off-style paper layer, Functional layer includes supporting layer and tack coat, and supporting layer is fitted by tack coat with off-style paper layer;The refraction index of supporting layer is about For 1.4-1.6, tack coat refraction index is about 1.5~1.7, and supporting layer refraction index is less than tack coat;Supporting layer and bonding At least one layer is mixed with the photothermal converting agent that mass content is 1-20% in layer.
2. optical clear composite membrane according to claim 1, it is characterised in that the material of the supporting layer be selected from polyester, Polyethylene, polypropylene, polymethyl methacrylate and makrolon etc., supporting layer thickness are about 10~200 μm;The supporting layer If upper and lower surface independently be flat surface or the surface with dry type of inward penetration of pyogence agent light micro-structural, the sunken light micro-structural includes Ball projection, tapered protrusion, micro-prism structure etc.;The tack coat is pressure-sensitive acrylate;Adhesive layer thickness is about 5~ 100μm。
3. optical clear composite membrane according to claim 2, it is characterised in that the material of the supporting layer is preferably poly- first Base acrylate or polypropylene.
4. optical clear composite membrane according to claim 1, it is characterised in that the photothermal converting agent is mixed selected from rare earth ion In miscellaneous metallic compound and rare earth organic complex, the rare earth ion doped metallic compound, metallic compound includes Y2O3、 La2O3、Gd2O3、TiO2、SiO2、CaSi2O2N2、La2O2S、SrAl2O4、YVO4、GdVO4、(Y,Gd)BO3、GdAl3(BO3)4、 NaYF4, rare earth ion include Sm3+、Eu3+、Yb3+、Tb3+、Ce3+、Pr3+、Dy3+;The rare earth organic complex is rare-earth beta-two Ketone complex, rare earth element includes Eu, Gd, Tb, Y, La, Sm, Pr.The photothermal converting agent is preferably Y2O3:Eu3+、SrAl2O4: Eu2+, Dy3+And Eu (TTA)3phen。
5. optically transparent composite membrane according to claim 1, it is characterised in that the tack coat raw material is included and pressed below The component of mass parts meter:
6. tack coat raw material according to claim 5, it is characterised in that (methyl) acrylate monomer is by soft monomer With hard monomer in mass ratio 2:1-6 mixing compositions;
The soft monomer is by ethyl acrylate, butyl acrylate, isobutyl acrylate, Hexyl 2-propenoate, Isooctyl acrylate monomer, third Olefin(e) acid lauryl, benzyl acrylate, cyclohexyl acrylate, perfluoroalkyl acrylate, 2-Hydroxy ethyl acrylate, acrylic acid- One or more in 2- hydroxy propyl esters are by any proportioning mixing composition;The hard monomer is by methyl acrylate, methacrylic acid Methyl esters, EMA, butyl methacrylate, THFMA, benzyl methacrylate, methyl-prop One kind in the own ester of olefin(e) acid, the hydroxy propyl ester of methacrylic acid -2, isobornyl acrylate, vinylacetate, styrene, acrylonitrile Or it is several by any proportioning mixing composition.
7. tack coat raw material according to claim 6, it is characterised in that the coupling agent is selected from silane coupler, chromium network Compound coupling agent and titanate coupling agent.Preferably, coupling agent is made up of following one or more of mixing in any proportion: γ-aminopropyltrimethoxysilane, gamma-aminopropyl-triethoxy-silane, 3- aminopropyl trimethoxysilanes, γ-(2,3- epoxies Third oxygen) the blue methoxy silane of propyl group, γ-methacryloxypropyl trimethoxy silane, γ-mercapto propyl-triethoxysilicane Alkane, N- β-aminoethyl-γ-aminopropyltriethoxy dimethoxysilane, diethylin are for MTES, dichloromethyl three Ethoxysilane, vinyltrimethoxy silane;The diluent by toluene, ethyl acetate, butyl acetate, dimethyl carbonate, One or more in MEK and butanone are by any proportioning mixing composition;The initiator is azo-initiator, preferably For azodiisobutyronitrile, ABVN, azo-bis-iso-dimethyl;The antioxidant is by antioxidant 245, antioxidant 1010th, the one or more in antioxidant 1035, antioxidant 1076, antioxidant 1098, antioxidant 1135 and antioxidant 3114 are pressed Any proportioning mixing composition;The UV stabilizer is by salicylic acid esters, benzophenone class, benzotriazole, group-substituted acrylonitrile, three One or more in piperazine class and hindered amines are by any proportioning mixing composition, preferably by 2- (2 '-hydroxyl -5 '-aminomethyl phenyl) One or more in BTA, ESCALOL 567,2-hydroxy-4-n-octoxybenzophenone are pressed Any proportioning mixing composition;The crosslinking agent is selected from isocyanates, metal organic chelate, aziridine cpd.
8. the preparation method of optical clear composite membrane described in a kind of claim 1, it is characterised in that this method includes following step Suddenly:
(1) photothermal converting agent is mixed in support layer material, the quality proportioning of photothermal converting agent and support layer material is 1-20:99-80, The techniques such as rolling process, the tape casting, blow moulding or pulling method are used to prepare the thickness containing photothermal converting agent for 10~200 μm Support layer film;The quality of photothermal converting agent is the 1-20% of support layer film;
(2) 100 mass parts (methyl) acrylate monomer, 35~55 mass parts diluents are mixed, adds to stirred tank, stir Mix and be heated to 90~100 DEG C, react 5~15 hours, during which constantly instill 0.1~3 mass parts initiator, finally give viscosity and exist Acrylate adhesive between 1000~8000cps;
(3) by acrylate adhesive made from step 1 and 1~10 mass parts coupling agent, 0.5~5 mass parts UV stabilizer, 0.3~3 mass parts antioxidant, 1~5 mass parts crosslinking agent are mixed and are coated on the supporting layer of step 1 preparation, form thick Spend after the tack coat for 5~100 μm, drying and the sticking optical clear composite membrane of tool is made;
(4) by release liners of being fitted made from step 3 on tack coat, then wind.
9. the preparation method of optical clear composite membrane described in a kind of claim 1, it is characterised in that this method includes following step Suddenly:
(1) 100 mass parts (methyl) acrylate monomer, 35~55 mass parts diluents are mixed, adds to stirred tank, stir Mix and be heated to 90~100 DEG C, react 5~15 hours, during which constantly instill 0.1~3 mass parts initiator, finally give viscosity and exist Acrylate adhesive between 1000~8000cps;
(2) by acrylate adhesive made from step 1 and 1~10 mass parts coupling agent, 0.5~5 mass parts UV stabilizer, The photothermal converting agent of 0.3~3 part of quality antioxidant, 1~5 mass parts crosslinking agent and 1.39~45.25 mass parts is mixed and applied It is distributed on the supporting layer that thickness is 10~200 μm, being formed to be made after the tack coat that thickness is 5~100 μm, drying has viscosity Optical clear composite membrane, the quality of photothermal converting agent is the 1-20% of tack coat;
(3) optical clear composite membrane made from step 2 is had into sticking one side laminating release liners, then wound.
10. the optical clear composite membrane described in a kind of claim 1 is in many main grids and without the application in main grid photovoltaic module.
CN201710138453.4A 2017-03-09 2017-03-09 A kind of photovoltaic transparent composite membrane and preparation method and application Pending CN106960891A (en)

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CN111959057A (en) * 2020-08-20 2020-11-20 衡阳华灏新材料科技有限公司 Transparent flexible nano composite substrate and preparation method and application thereof
CN112358820A (en) * 2020-11-09 2021-02-12 福斯特(滁州)新材料有限公司 Packaging adhesive film with strong adhesive force with battery piece, composition for forming packaging adhesive film and application of packaging adhesive film
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CN113284960A (en) * 2021-05-13 2021-08-20 浙江理工大学 Flexible nanofiber membrane light-transmitting electrode with light conversion function and preparation method and application thereof
CN116265548A (en) * 2021-12-17 2023-06-20 阿特斯阳光电力集团股份有限公司 HJT special packaging adhesive film and preparation method and application thereof
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Application publication date: 20170718