CN111136982A - High-water-resistance, high-heat-dissipation and high-reflection polyester film for solar cell backboard - Google Patents
High-water-resistance, high-heat-dissipation and high-reflection polyester film for solar cell backboard Download PDFInfo
- Publication number
- CN111136982A CN111136982A CN201811304662.2A CN201811304662A CN111136982A CN 111136982 A CN111136982 A CN 111136982A CN 201811304662 A CN201811304662 A CN 201811304662A CN 111136982 A CN111136982 A CN 111136982A
- Authority
- CN
- China
- Prior art keywords
- polyester film
- layer
- content
- titanium dioxide
- meshes
- Prior art date
- 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.)
- Withdrawn
Links
- 229920006267 polyester film Polymers 0.000 title claims abstract description 293
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 264
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 132
- 239000011347 resin Substances 0.000 claims abstract description 71
- 229920005989 resin Polymers 0.000 claims abstract description 71
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 66
- 229910052582 BN Inorganic materials 0.000 claims abstract description 64
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims abstract description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 57
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 36
- 230000017525 heat dissipation Effects 0.000 claims abstract description 7
- 239000002245 particle Substances 0.000 claims description 110
- 230000005540 biological transmission Effects 0.000 claims description 37
- 229920000728 polyester Polymers 0.000 claims description 18
- 238000002310 reflectometry Methods 0.000 claims description 17
- 239000011256 inorganic filler Substances 0.000 claims description 15
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 15
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 8
- 239000011787 zinc oxide Substances 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 235000012239 silicon dioxide Nutrition 0.000 claims description 4
- 239000012965 benzophenone Substances 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- 239000000654 additive Substances 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- 150000008366 benzophenones Chemical class 0.000 claims description 2
- 150000001565 benzotriazoles Chemical class 0.000 claims description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000292 calcium oxide Substances 0.000 claims description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 2
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000395 magnesium oxide Substances 0.000 claims description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 2
- 150000003873 salicylate salts Chemical class 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 28
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 4
- 229910052731 fluorine Inorganic materials 0.000 description 4
- 239000011737 fluorine Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000008393 encapsulating agent Substances 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Images
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
- B32B27/36—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
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/28—Nitrogen-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- 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
- H01L31/049—Protective back sheets
-
- 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
- H01L31/052—Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells
-
- 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
- H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
- H01L31/0547—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means comprising light concentrating means of the reflecting type, e.g. parabolic mirrors, concentrators using total internal reflection
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/416—Reflective
-
- 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
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/726—Permeability to liquids, absorption
- B32B2307/7265—Non-permeable
-
- 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
- B32B2457/12—Photovoltaic modules
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2206—Oxides; Hydroxides of metals of calcium, strontium or barium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/28—Nitrogen-containing compounds
- C08K2003/285—Ammonium nitrates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3045—Sulfates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/38—Boron-containing compounds
- C08K2003/382—Boron-containing compounds and nitrogen
- C08K2003/385—Binary compounds of nitrogen with boron
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/14—Gas barrier composition
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- 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
- Y02E10/52—PV systems with concentrators
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Physics & Mathematics (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Laminated Bodies (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
The invention provides a polyester film for a solar cell backboard. The polyester film is of an ABA three-layer structure, and the layer A is composed of PET resin, boron nitride, titanium dioxide and an anti-UV agent; the layer B consists of PET/PEN blended resin, talcum powder and titanium dioxide. The polyester film for the solar backboard provided by the invention has the functions of high water resistance and high heat dissipation, and also has the function of high reflection, so that the service life of a solar cell module can be effectively prolonged, and the benefit of the module is improved.
Description
Technical Field
The invention relates to the technical field of solar cell modules, in particular to a polyester film of a solar cell backboard with high water resistance, high heat dissipation and high reflection.
Background
Solar module structures typically include a glass layer, an EVA encapsulant layer, a silicon cell sheet, an EVA encapsulant layer, and a solar cell backsheet. The solar cell backboard mainly has the effects of supporting the solar cell, preventing water vapor from entering the assembly, and prolonging the service life, the power generation efficiency and the stability of the cell assembly. At present, the solar cell back sheet is usually prepared by coating a fluorine-containing coating on the surface of a polyester substrate or attaching a fluorine film, wherein the fluorine film or the fluorine coating has good weather resistance but poor water resistance, and the polyester in the middle layer has general water resistance. However, the service life of the solar cell is shortened by the water vapor permeation during the use process of the solar cell module. Therefore, it is significant to improve the water vapor barrier property of the solar cell back sheet.
Because the water vapor has great influence on the working efficiency and the service life of the solar cell module, the water resistance of the solar cell backboard in the photovoltaic industry is higher and higher. At present, most of back plates improve the water resistance mainly by adding a barrier layer, so that the structure and the processing process of the back plate become complicated, for example, a high-water-resistance aluminum foil-containing solar module back plate is disclosed in a Chinese patent with an authorization publication number of CN 206340561U, and a layer of aluminum foil is added in the back plate to obtain a high-water-resistance back plate; the chinese patent with the publication number of CN 206271721U discloses a high-barrier solar cell back plate with a multilayer structure, wherein a high-barrier PVDC layer is added in the back plate, so as to obtain the high-water-barrier solar cell back plate. The invention improves the water resistance of the polyester substrate by modifying the polyester substrate. In addition, the polyester base film also has excellent heat dissipation performance and higher reflectivity. The solar cell backboard prepared by the modified polyester substrate film has good water resistance, excellent heat dissipation function and higher reflectivity, and the solar cell module assembled by the backboard can also generate good economic benefit.
Disclosure of Invention
The invention aims to provide a high-water-resistance, high-heat-dissipation and high-reflection polyester film for a solar cell backboard.
In order to achieve the purpose, the invention adopts the following technical scheme:
a solar cell backboard polyester film with high water resistance, high heat dissipation and high reflection is characterized in that: the polyester film is of an ABA three-layer structure, wherein the layer A of the polyester film comprises inorganic filler, heat-conducting filler, an anti-UV agent and polyester, and the layer B of the polyester film comprises inorganic filler a, inorganic filler B and mixed polyester.
Further, the inorganic filler in the layer A of the polyester film is one or a combination of several of titanium dioxide, silicon dioxide, barium sulfate, aluminum oxide and zinc oxide, the heat-conducting filler in the layer A of the polyester film is one or a combination of several of boron nitride, aluminum nitride, magnesium oxide and zinc oxide, the polyester in the layer A of the polyester film is one of PET and PEN resin, and the anti-UV agent in the layer A of the polyester film is one or a combination of several of benzophenones, benzotriazoles or salicylates.
Further, the inorganic filler a in the layer B of the polyester film is one or a combination of more of titanium dioxide, silicon dioxide, barium sulfate, aluminum oxide or zinc oxide; the inorganic filler B in the polyester film layer B is one or a combination of more of talcum powder, calcium carbonate, kaolin or calcium oxide, and the mixed polyester in the polyester film layer B is a combination of PET resin or PEN resin.
Further, the inorganic filler in the layer A of the polyester film is preferably titanium dioxide.
Further, the heat conductive filler in the layer a of the polyester film is preferably boron nitride.
Further, the polyester in the layer a of the polyester film is preferably a PET resin.
Further, the UV resistant agent in the A layer of the polyester film is preferably benzophenone.
Further, the inorganic filler a in the layer B of the polyester film is preferably titanium dioxide.
Further, the inorganic filler B in the layer B of the polyester film is preferably talcum powder.
Further, the content of titanium dioxide in the layer A of the polyester film is 1-5%, and the content of boron nitride is 1-15%; the content of the UV resistant additive is 2 percent; the content of PET resin is 78-96%.
Furthermore, the talcum powder content in the polyester film B layer is 0.5-5%, and the titanium dioxide content in the polyester film B layer is 1-5%; the content of the mixed resin in the B layer of the polyester film is 90-98.5%, wherein the PET accounts for 60%, and the PEN accounts for 40%.
Further, the polyester film has a water vapor transmission rate of 0.3 to 1.4g/m224h, the thermal conductivity coefficient of the polyester film is 1-5W/(m.k), and the reflectivity of the polyester film is 85-94%.
Furthermore, the addition amount of titanium dioxide in the polyester film layer A is preferably 2-4%, the addition amount of boron nitride in the polyester film layer A is preferably 3-12%, the addition amount of the UV resistant agent in the polyester film layer A is 2%, and the content of PET resin in the polyester film layer A is 82-93%.
Furthermore, the content of talcum powder in the polyester film B layer is preferably 1-3%, the content of titanium dioxide in the polyester film B layer is preferably 2-5%, and the content of mixed resin in the polyester film B layer is preferably 92-97%, wherein PET accounts for 60%, and PEN accounts for 40%.
Further, the optimal addition amount of titanium dioxide in the polyester film layer A is 4%, the optimal addition amount of boron nitride in the polyester film layer A is 10%, the optimal addition amount of the UV resistant agent in the polyester film layer A is 2%, and the optimal content of the PET resin in the polyester film layer A is 84%.
Further, the content of talcum powder in the polyester film B layer is optimally 1.5%, the content of titanium dioxide in the polyester film B layer is optimally 4%, the content of mixed resin in the polyester film B layer is optimally 95.5%, wherein PET accounts for 60%, and PEN accounts for 40%.
Furthermore, the granularity of titanium dioxide in the polyester film layer A is 6000-12000 meshes, and the granularity of boron nitride in the polyester film layer A is 50 nm. The granularity of the talcum powder in the high water-resistant polyester film B layer is 6000-12000 meshes, and the granularity of the titanium dioxide in the high water-resistant polyester film B layer is 6000-12000 meshes.
Further, the granularity of titanium dioxide in the layer A of the polyester film is preferably 8000-11000 meshes. The granularity of the talcum powder in the high water-blocking polyester film B layer is preferably 7000-10000 meshes, and the granularity of the titanium dioxide in the polyester film B layer is preferably 8000-11000 meshes.
Further, the granularity of titanium dioxide in the layer A of the high water-blocking polyester film is 10000 meshes optimally. The optimal particle size of the talcum powder in the B layer of the polyester film is 8000 meshes, and the optimal particle size of the titanium dioxide in the B layer of the polyester film is 10000 meshes.
Further, the total thickness of the polyester film is 150-350 μm, the thickness of the layer A of the polyester film is 10-50 μm, and the thickness of the layer B of the polyester film is 130-330 μm.
Further, the total thickness of the polyester film is preferably 200-300 μm, the thickness of the polyester film A layer is preferably 15-30 μm, and the thickness of the polyester film B layer is preferably 150-250 μm.
Further, the total thickness of the polyester film is 250 μm optimally, the thickness of the polyester film A layer is 20 μm optimally, and the thickness of the polyester film B layer is 210 μm optimally.
Further, the preparation method of the polyester film is a three-layer co-extrusion technology, and the ABA three-layer structure polyester film is obtained by casting, longitudinally drawing, transversely drawing and rolling.
Go toThe water vapor transmission rate of the polyester film is preferably 0.3 to 1.0g/m224h, the thermal conductivity of the polyester film is preferably 2-5W/(m.k), and the reflectivity of the polyester film is preferably 87-94%.
Further, the polyester film has a water vapor transmission rate of 0.4g/m as an optimum2And 24h, the thermal conductivity coefficient of the polyester film is optimally 4W/(m.k), and the reflectivity of the polyester film is optimally 94%.
Further, the content of boron nitride in the layer A of the polyester film is 10%, the content of titanium dioxide is 4%, the content of the anti-UV agent is 2%, and the content of the PET resin is 84%; in the polyester film layer B, the content of talcum powder is 1.5%, the content of titanium dioxide is 4%, the content of mixed resin is 94.5%, wherein the content of PET is 56.7%, and the content of PEN is 37.8%. The particle size of titanium dioxide in the polyester film layer A is 10000 meshes, the particle size of boron nitride is 50nm, the particle size of talcum powder in the polyester film layer B is 8000 meshes, and the particle size of titanium dioxide is 10000 meshes. The total thickness of the polyester film is 250 μm, wherein the thickness of the A layer is 20 μm, and the thickness of the B layer is 210 μm. The polyester film has water vapor transmission rate, heat conductivity coefficient and reflectivity of 0.4g/m2And 24h, the thermal conductivity coefficient of the polyester film is optimally 4W/(m.k), and the reflectivity of the polyester film is optimally 94%.
The invention has the beneficial effects that:
at present, the photovoltaic industry promotes backplate water blocking performance and realizes high water blocking mainly through increasing the barrier layer, however, increase the barrier layer not only make production technology become more complicated, make manufacturing cost also can greatly increased simultaneously, be unfavorable for extensive popularization. The invention utilizes the existing equipment and adopts the three-layer co-extrusion technology to obtain the high-water-resistance polyester film, and the water vapor transmission rate of the polyester film can reach 0.3-1.4g/m224h, and meanwhile, the polyester film also has a good heat dissipation function and high reflectivity. In addition, the production process is simple, the production cost is low, and the high-water-resistance polyester film disclosed by the invention is favorable for large-scale popularization. The backboard obtained by compounding the polyester base film can prolong the service life of the assembly and improve the economic benefit of the assembly.
Drawings
FIG. 1 is a schematic view of the cross-sectional structure of the present invention
The reference numbers in the figures are as follows: 1-A layer; 2-B layer; 3-A layer.
Detailed Description
The polyester film for the solar back panel prepared by the invention is subjected to physical property test according to the following method:
reflectance ratio: according to the GB/T3979-2008 standard, the reflectivity of the polyester-based film is tested by an integrating sphere D/8 DEG structure under the condition of a D65 light source by adopting a ColorQuest XE spectrocolorimeter (manufactured by Hunterlab corporation), and the reflectivity data is the weighted average value of the reflectivity of 400-700nm at every 10nm wavelength, namely the reflectivity of the polyester-based film.
Water vapor transmission rate: according to GB/T26253-2010, the water vapor transmission rate was measured by the infrared method using a MOCON PERMATRAN-W Moddel 3/61 water vapor transmission rate tester with a sample area of about 20cm2 at 38 ℃ and a relative humidity of 90%.
Coefficient of thermal conductivity: according to GB/T10294-2008, a Hunan Tan Hunan Ke DRL-III thermal conductivity tester is adopted to test the thermal conductivity of the polyester film sample.
For better illustration of the invention, and to facilitate understanding of the technical solutions thereof, typical but non-limiting examples of the invention are as follows:
example 1
The preparation method of the polyester film is a three-layer co-extrusion technology, and the polyester film with the ABA three-layer structure is obtained by casting, longitudinally drawing, horizontally drawing and rolling in sequence.
The content of boron nitride in the layer A of the polyester film is 1%, the content of titanium dioxide is 1%, the content of an anti-UV agent is 2%, and the content of PET resin is 96%; the content of talcum powder in the B layer of the polyester film is 0.5%, the content of titanium dioxide is 1%, the content of mixed resin is 98.5%, wherein the content of PET is 60%, and the content of PEN is 40%. The particle size of titanium dioxide in the polyester film A layer is 6000 meshes, the particle size of boron nitride is 50nm, the particle size of talcum powder in the polyester film B layer is 6000 meshes, and the particle size of titanium dioxide is 6000 meshes. The total thickness of the polyester film is 200 mu m, wherein the thickness of the A layer is 15 mu m, and the thickness of the B layer is 170 mu m. The water vapor transmission rate, thermal conductivity and reflectance test results of the polyester film are shown in table 1.
Example 2
The content of boron nitride in the layer A of the polyester film is 1%, the content of titanium dioxide is 1%, the content of an anti-UV agent is 2%, and the content of PET resin is 96%; the content of talcum powder in the B layer of the polyester film is 0.5%, the content of titanium dioxide is 1%, the content of mixed resin is 98.5%, wherein the content of PET is 59.1%, and the content of PEN is 39.4%. The particle size of titanium dioxide in the polyester film A layer is 6000 meshes, the particle size of boron nitride is 50nm, the particle size of talcum powder in the polyester film B layer is 6000 meshes, and the particle size of titanium dioxide is 6000 meshes. The total thickness of the polyester film is 200 mu m, wherein the thickness of the A layer is 20 mu m, and the thickness of the B layer is 160 mu m. The water vapor transmission rate, thermal conductivity and reflectance test results of the polyester film are shown in table 1.
Example 3
The content of boron nitride in the layer A of the polyester film is 1%, the content of titanium dioxide is 1%, the content of an anti-UV agent is 2%, and the content of PET resin is 96%; the content of talcum powder in the B layer of the polyester film is 0.5%, the content of titanium dioxide is 1%, the content of mixed resin is 98.5%, wherein the content of PET is 59.1%, and the content of PEN is 39.4%. The particle size of titanium dioxide in the polyester film A layer is 6000 meshes, the particle size of boron nitride is 50nm, the particle size of talcum powder in the polyester film B layer is 6000 meshes, and the particle size of titanium dioxide is 6000 meshes. The total thickness of the polyester film is 250 mu m, wherein the thickness of the A layer is 15 mu m, and the thickness of the B layer is 220 mu m. The water vapor transmission rate, thermal conductivity and reflectance test results of the polyester film are shown in table 1.
Example 4
The content of boron nitride in the layer A of the polyester film is 1%, the content of titanium dioxide is 1%, the content of an anti-UV agent is 2%, and the content of PET resin is 96%; the content of talcum powder in the B layer of the polyester film is 0.5%, the content of titanium dioxide is 1%, the content of mixed resin is 98.5%, wherein the content of PET is 59.1%, and the content of PEN is 39.4%. The particle size of titanium dioxide in the polyester film A layer is 6000 meshes, the particle size of boron nitride is 50nm, the particle size of talcum powder in the polyester film B layer is 6000 meshes, and the particle size of titanium dioxide is 6000 meshes. The total thickness of the polyester film is 300 mu m, wherein the thickness of the A layer is 20 mu m, and the thickness of the B layer is 260 mu m. The water vapor transmission rate, thermal conductivity and reflectance test results of the polyester film are shown in table 1.
Example 5
The content of boron nitride in the layer A of the polyester film is 1%, the content of titanium dioxide is 1%, the content of an anti-UV agent is 2%, and the content of PET resin is 96%; the content of talcum powder in the B layer of the polyester film is 0.5%, the content of titanium dioxide is 1%, the content of mixed resin is 98.5%, wherein the content of PET is 59.1%, and the content of PEN is 39.4%. The particle size of titanium dioxide in the polyester film A layer is 6000 meshes, the particle size of boron nitride is 50nm, the particle size of talcum powder in the polyester film B layer is 6000 meshes, and the particle size of titanium dioxide is 6000 meshes. The total thickness of the polyester film is 350 μm, wherein the thickness of the A layer is 20 μm, and the thickness of the B layer is 310 μm. The water vapor transmission rate, thermal conductivity and reflectance test results of the polyester film are shown in table 1.
Example 6
The content of boron nitride in the layer A of the polyester film is 1%, the content of titanium dioxide is 2%, the content of an anti-UV agent is 2%, and the content of PET resin is 95%; the content of talcum powder in the B layer of the polyester film is 1%, the content of titanium dioxide is 2%, the content of the mixed resin is 97%, the content of PET is 58.2%, and the content of PEN is 38.8%. The particle size of titanium dioxide in the polyester film A layer is 6000 meshes, the particle size of boron nitride is 50nm, the particle size of talcum powder in the polyester film B layer is 6000 meshes, and the particle size of titanium dioxide is 6000 meshes. The total thickness of the polyester film is 250 mu m, wherein the thickness of the A layer is 15 mu m, and the thickness of the B layer is 220 mu m. The water vapor transmission rate, thermal conductivity and reflectance test results of the polyester film are shown in table 1.
Example 7
The content of boron nitride in the layer A of the polyester film is 1%, the content of titanium dioxide is 4%, the content of an anti-UV agent is 2%, and the content of PET resin is 93%; in the B layer of the polyester film, the content of talcum powder is 1%, the content of titanium dioxide is 4%, the content of mixed resin is 95%, wherein the content of PET is 57%, and the content of PEN is 38%. The particle size of titanium dioxide in the polyester film A layer is 6000 meshes, the particle size of boron nitride is 50nm, the particle size of talcum powder in the polyester film B layer is 6000 meshes, and the particle size of titanium dioxide is 6000 meshes. The total thickness of the polyester film is 250 mu m, wherein the thickness of the A layer is 15 mu m, and the thickness of the B layer is 220 mu m. The water vapor transmission rate, thermal conductivity and reflectance test results of the polyester film are shown in table 1.
Example 8
The content of boron nitride in the layer A of the polyester film is 1%, the content of titanium dioxide is 5%, the content of an anti-UV agent is 2%, and the content of PET resin is 92%; in the polyester film layer B, the content of talcum powder is 1%, the content of titanium dioxide is 5%, the content of mixed resin is 94%, wherein the content of PET is 56.4%, and the content of PEN is 37.6%. The particle size of titanium dioxide in the polyester film A layer is 6000 meshes, the particle size of boron nitride is 50nm, the particle size of talcum powder in the polyester film B layer is 6000 meshes, and the particle size of titanium dioxide is 6000 meshes. The total thickness of the polyester film is 250 mu m, wherein the thickness of the A layer is 15 mu m, and the thickness of the B layer is 220 mu m. The water vapor transmission rate, thermal conductivity and reflectance test results of the polyester film are shown in table 1.
Example 9
The content of boron nitride in the layer A of the polyester film is 1%, the content of titanium dioxide is 4%, the content of an anti-UV agent is 2%, and the content of PET resin is 93%; in the B layer of the polyester film, the content of talcum powder is 1%, the content of titanium dioxide is 4%, the content of mixed resin is 95%, wherein the content of PET is 57%, and the content of PEN is 38%. The particle size of titanium dioxide in the polyester film A layer is 10000 meshes, the particle size of boron nitride is 50nm, the particle size of talcum powder in the polyester film B layer is 6000 meshes, and the particle size of titanium dioxide is 6000 meshes. The total thickness of the polyester film is 250 mu m, wherein the thickness of the A layer is 15 mu m, and the thickness of the B layer is 220 mu m. The water vapor transmission rate, thermal conductivity and reflectance test results of the polyester film are shown in table 1.
Example 10
The content of boron nitride in the layer A of the polyester film is 1%, the content of titanium dioxide is 4%, the content of an anti-UV agent is 2%, and the content of PET resin is 93%; in the B layer of the polyester film, the content of talcum powder is 1%, the content of titanium dioxide is 4%, the content of mixed resin is 95%, wherein the content of PET is 57%, and the content of PEN is 38%. The particle size of titanium dioxide in the polyester film layer A is 12000 meshes, the particle size of boron nitride is 50nm, the particle size of talcum powder in the polyester film layer B is 8000 meshes, and the particle size of titanium dioxide is 10000 meshes. The total thickness of the polyester film is 250 mu m, wherein the thickness of the A layer is 15 mu m, and the thickness of the B layer is 220 mu m. The water vapor transmission rate, thermal conductivity and reflectance test results of the polyester film are shown in table 1.
Example 11
The content of boron nitride in the layer A of the polyester film is 3%, the content of titanium dioxide is 4%, the content of an anti-UV agent is 2%, and the content of PET resin is 91%; in the B layer of the polyester film, the content of talcum powder is 1%, the content of titanium dioxide is 4%, the content of mixed resin is 95%, wherein the content of PET is 57%, and the content of PEN is 38%. The particle size of titanium dioxide in the polyester film layer A is 10000 meshes, the particle size of boron nitride is 50nm, the particle size of talcum powder in the polyester film layer B is 8000 meshes, and the particle size of titanium dioxide is 10000 meshes. The total thickness of the polyester film is 200 mu m, wherein the thickness of the A layer is 10 mu m, and the thickness of the B layer is 180 mu m. The water vapor transmission rate, thermal conductivity and reflectance test results of the polyester film are shown in table 1.
Example 12
The content of boron nitride in the layer A of the polyester film is 7%, the content of titanium dioxide is 4%, the content of an anti-UV agent is 2%, and the content of PET resin is 87%; in the B layer of the polyester film, the content of talcum powder is 1%, the content of titanium dioxide is 4%, the content of mixed resin is 95%, wherein the content of PET is 57%, and the content of PEN is 38%. The particle size of titanium dioxide in the polyester film layer A is 10000 meshes, the particle size of boron nitride is 50nm, the particle size of talcum powder in the polyester film layer B is 8000 meshes, and the particle size of titanium dioxide is 10000 meshes. The total thickness of the polyester film is 250 μm, wherein the thickness of the A layer is 20 μm, and the thickness of the B layer is 210 μm. The water vapor transmission rate, thermal conductivity and reflectance test results of the polyester film are shown in table 1.
Example 13
The content of boron nitride in the layer A of the polyester film is 10%, the content of titanium dioxide is 4%, the content of an anti-UV agent is 2%, and the content of PET resin is 84%; in the B layer of the polyester film, the content of talcum powder is 1%, the content of titanium dioxide is 4%, the content of mixed resin is 95%, wherein the content of PET is 57%, and the content of PEN is 38%. The particle size of titanium dioxide in the polyester film layer A is 10000 meshes, the particle size of boron nitride is 50nm, the particle size of talcum powder in the polyester film layer B is 8000 meshes, and the particle size of titanium dioxide is 10000 meshes. The total thickness of the polyester film is 300 mu m, wherein the thickness of the A layer is 30 mu m, and the thickness of the B layer is 240 mu m. The water vapor transmission rate, thermal conductivity and reflectance test results of the polyester film are shown in table 1.
Example 14
The content of boron nitride in the layer A of the polyester film is 12%, the content of titanium dioxide is 4%, the content of an anti-UV agent is 2%, and the content of PET resin is 82%; in the B layer of the polyester film, the content of talcum powder is 1%, the content of titanium dioxide is 4%, the content of mixed resin is 95%, wherein the content of PET is 57%, and the content of PEN is 38%. The particle size of titanium dioxide in the polyester film layer A is 10000 meshes, the particle size of boron nitride is 50nm, the particle size of talcum powder in the polyester film layer B is 8000 meshes, and the particle size of titanium dioxide is 10000 meshes. The total thickness of the polyester film is 550 μm, wherein the thickness of the A layer is 30 μm, and the thickness of the B layer is 290 μm. The water vapor transmission rate, thermal conductivity and reflectance test results of the polyester film are shown in table 1.
Example 15
The content of boron nitride in the layer A of the polyester film is 10%, the content of titanium dioxide is 4%, the content of an anti-UV agent is 2%, and the content of PET resin is 84%; the content of talcum powder in the B layer of the polyester film is 0.5%, the content of titanium dioxide is 4%, the content of mixed resin is 95.5%, wherein the content of PET is 57.3%, and the content of PEN is 38.2%. The particle size of titanium dioxide in the polyester film layer A is 10000 meshes, the particle size of boron nitride is 50nm, the particle size of talcum powder in the polyester film layer B is 8000 meshes, and the particle size of titanium dioxide is 10000 meshes. The total thickness of the polyester film is 300 mu m, wherein the thickness of the A layer is 20 mu m, and the thickness of the B layer is 260 mu m. The water vapor transmission rate, thermal conductivity and reflectance test results of the polyester film are shown in table 1.
Example 16
The content of boron nitride in the layer A of the polyester film is 10%, the content of titanium dioxide is 4%, the content of an anti-UV agent is 2%, and the content of PET resin is 84%; in the polyester film layer B, the content of talcum powder is 1.5%, the content of titanium dioxide is 4%, the content of mixed resin is 94.5%, wherein the content of PET is 56.7%, and the content of PEN is 37.8%. The particle size of titanium dioxide in the polyester film layer A is 10000 meshes, the particle size of boron nitride is 50nm, the particle size of talcum powder in the polyester film layer B is 8000 meshes, and the particle size of titanium dioxide is 10000 meshes. The total thickness of the polyester film is 300 mu m, wherein the thickness of the A layer is 20 mu m, and the thickness of the B layer is 260 mu m. The water vapor transmission rate, thermal conductivity and reflectance test results of the polyester film are shown in table 1.
Example 17
The content of boron nitride in the layer A of the polyester film is 10%, the content of titanium dioxide is 4%, the content of an anti-UV agent is 2%, and the content of PET resin is 84%; the content of talcum powder in the B layer of the polyester film is 3%, the content of titanium dioxide is 4%, the content of mixed resin is 91%, the content of PET is 55.8%, and the content of PEN is 37.2%. The particle size of titanium dioxide in the polyester film layer A is 10000 meshes, the particle size of boron nitride is 50nm, the particle size of talcum powder in the polyester film layer B is 8000 meshes, and the particle size of titanium dioxide is 10000 meshes. The total thickness of the polyester film is 300 mu m, wherein the thickness of the A layer is 20 mu m, and the thickness of the B layer is 260 mu m. The water vapor transmission rate, thermal conductivity and reflectance test results of the polyester film are shown in table 1.
Example 18
The content of boron nitride in the layer A of the polyester film is 10%, the content of titanium dioxide is 4%, the content of an anti-UV agent is 2%, and the content of PET resin is 84%; in the polyester film layer B, the content of talcum powder is 1.5%, the content of titanium dioxide is 4%, the content of mixed resin is 94.5%, wherein the content of PET is 56.7%, and the content of PEN is 37.8%. The particle size of titanium dioxide in the polyester film layer A is 10000 meshes, the particle size of boron nitride is 50nm, the particle size of talcum powder in the polyester film layer B is 6000 meshes, and the particle size of titanium dioxide is 10000 meshes. The total thickness of the polyester film is 250 μm, wherein the thickness of the A layer is 20 μm, and the thickness of the B layer is 210 μm. The water vapor transmission rate, thermal conductivity and reflectance test results of the polyester film are shown in table 1.
Example 19
The content of boron nitride in the layer A of the polyester film is 10%, the content of titanium dioxide is 4%, the content of an anti-UV agent is 2%, and the content of PET resin is 84%; in the polyester film layer B, the content of talcum powder is 1.5%, the content of titanium dioxide is 4%, the content of mixed resin is 94.5%, wherein the content of PET is 56.7%, and the content of PEN is 37.8%. The particle size of titanium dioxide in the polyester film layer A is 10000 meshes, the particle size of boron nitride is 50nm, the particle size of talcum powder in the polyester film layer B is 8000 meshes, and the particle size of titanium dioxide is 10000 meshes. The total thickness of the polyester film is 250 μm, wherein the thickness of the A layer is 20 μm, and the thickness of the B layer is 210 μm. The water vapor transmission rate, thermal conductivity and reflectance test results of the polyester film are shown in table 1.
Example 20
The content of boron nitride in the layer A of the polyester film is 10%, the content of titanium dioxide is 4%, the content of an anti-UV agent is 2%, and the content of PET resin is 84%; in the polyester film layer B, the content of talcum powder is 1.5%, the content of titanium dioxide is 4%, the content of mixed resin is 94.5%, wherein the content of PET is 56.7%, and the content of PEN is 37.8%. The particle size of titanium dioxide in the polyester film layer A is 10000 meshes, the particle size of boron nitride is 50nm, the particle size of talcum powder in the polyester film layer B is 12000 meshes, and the particle size of titanium dioxide is 10000 meshes. The total thickness of the polyester film is 250 μm, wherein the thickness of the A layer is 20 μm, and the thickness of the B layer is 210 μm. The water vapor transmission rate, thermal conductivity and reflectance test results of the polyester film are shown in table 1.
Example 21
The content of boron nitride in the layer A of the polyester film is 2%, the content of titanium dioxide is 4%, the content of an anti-UV agent is 2%, and the content of PET resin is 92%; in the polyester film layer B, the content of talcum powder is 1.5%, the content of titanium dioxide is 4%, the content of mixed resin is 94.5%, wherein the content of PET is 56.7%, and the content of PEN is 37.8%. The particle size of titanium dioxide in the polyester film layer A is 10000 meshes, the particle size of boron nitride is 50nm, the particle size of talcum powder in the polyester film layer B is 8000 meshes, and the particle size of titanium dioxide is 10000 meshes. The total thickness of the polyester film is 250 mu m, wherein the thickness of the A layer is 30 mu m, and the thickness of the B layer is 190 mu m. The water vapor transmission rate, thermal conductivity and reflectance test results of the polyester film are shown in table 1.
Example 22
The content of boron nitride in the layer A of the polyester film is 5%, the content of titanium dioxide is 4%, the content of an anti-UV agent is 2%, and the content of PET resin is 89%; in the polyester film layer B, the content of talcum powder is 1.5%, the content of titanium dioxide is 4%, the content of mixed resin is 94.5%, wherein the content of PET is 56.7%, and the content of PEN is 37.8%. The particle size of titanium dioxide in the polyester film layer A is 10000 meshes, the particle size of boron nitride is 50nm, the particle size of talcum powder in the polyester film layer B is 8000 meshes, and the particle size of titanium dioxide is 10000 meshes. The total thickness of the polyester film is 250 mu m, wherein the thickness of the A layer is 30 mu m, and the thickness of the B layer is 190 mu m. The water vapor transmission rate, thermal conductivity and reflectance test results of the polyester film are shown in table 1.
Example 23
The content of boron nitride in the layer A of the polyester film is 10%, the content of titanium dioxide is 4%, the content of an anti-UV agent is 2%, and the content of PET resin is 84%; in the polyester film layer B, the content of talcum powder is 1.5%, the content of titanium dioxide is 4%, the content of mixed resin is 94.5%, wherein the content of PET is 56.7%, and the content of PEN is 37.8%. The particle size of titanium dioxide in the polyester film layer A is 10000 meshes, the particle size of boron nitride is 50nm, the particle size of talcum powder in the polyester film layer B is 8000 meshes, and the particle size of titanium dioxide is 10000 meshes. The total thickness of the polyester film is 250 mu m, wherein the thickness of the A layer is 30 mu m, and the thickness of the B layer is 190 mu m. The water vapor transmission rate, thermal conductivity and reflectance test results of the polyester film are shown in table 1.
Example 24
The content of boron nitride in the polyester film layer A is 15%, the content of titanium dioxide is 4%, the content of an anti-UV agent is 2%, and the content of PET resin is 79%; in the polyester film layer B, the content of talcum powder is 1.5%, the content of titanium dioxide is 4%, the content of mixed resin is 94.5%, wherein the content of PET is 56.7%, and the content of PEN is 37.8%. The particle size of titanium dioxide in the polyester film layer A is 10000 meshes, the particle size of boron nitride is 50nm, the particle size of talcum powder in the polyester film layer B is 8000 meshes, and the particle size of titanium dioxide is 10000 meshes. The total thickness of the polyester film is 350 mu m, wherein the thickness of the A layer is 30 mu m, and the thickness of the B layer is 290 mu m. The water vapor transmission rate, thermal conductivity and reflectance test results of the polyester film are shown in table 1.
Example 25
The content of boron nitride in the layer A of the polyester film is 1%, the content of titanium dioxide is 1%, the content of an anti-UV agent is 2%, and the content of PET resin is 96%; the content of talcum powder in the B layer of the polyester film is 0.5%, the content of titanium dioxide is 1%, the content of mixed resin is 98.5%, wherein the content of PET is 59.1%, and the content of PEN is 39.4%. The particle size of titanium dioxide in the polyester film A layer is 6000 meshes, the particle size of boron nitride is 50nm, the particle size of talcum powder in the polyester film B layer is 6000 meshes, and the particle size of titanium dioxide is 6000 meshes. The total thickness of the polyester film is 150 μm, wherein the thickness of the A layer is 10 μm, and the thickness of the B layer is 130 μm. The water vapor transmission rate, thermal conductivity and reflectance test results of the polyester film are shown in table 1.
Table 1 test results for polyester films provided in examples 1-20
As can be seen from the data shown in Table 1 above, among them examples 17, 19, 22, 23 are preferred examples, and the water vapor transmission rate of the polyester film is preferably 0.3 to 0.7g/m224h, the thermal conductivity of the polyester film is preferably 3-4W/(m.k), and the reflectivity of the polyester film is preferably 94%.
In particular, example 19 provides the polyester film having the best overall properties, and the polyester film has a water vapor transmission rate of 0.4g/m2And 24h, the thermal conductivity coefficient of the polyester film is optimally 4W/(m.k), and the reflectivity of the polyester film is optimally 94%.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A solar cell backboard polyester film with high water resistance, high heat dissipation and high reflection is characterized in that: the polyester film is of an ABA three-layer structure, wherein the layer A of the polyester film comprises inorganic filler, heat-conducting filler, an anti-UV agent and polyester, and the layer B of the polyester film comprises inorganic filler a, inorganic filler B and mixed polyester.
2. The solar cell back sheet polyester film according to claim 1, characterized in that: the polyester film comprises a polyester film A layer, a heat-conducting filler, a polyester film A layer and an anti-UV agent, wherein the inorganic filler in the polyester film A layer is one or a combination of more of titanium dioxide, silicon dioxide, barium sulfate, aluminum oxide and zinc oxide, the heat-conducting filler in the polyester film A layer is one or a combination of more of boron nitride, aluminum nitride, magnesium oxide and zinc oxide, the polyester in the polyester film A layer is one of PET and PEN resin, and the anti-UV agent in the polyester film A layer is one or a combination of more of benzophenones, benzotriazoles or salicylates.
3. The solar cell back sheet polyester film according to claim 1, characterized in that: the inorganic filler a in the layer B of the polyester film is one or a combination of more of titanium dioxide, silicon dioxide, barium sulfate, aluminum oxide or zinc oxide; the inorganic filler B in the polyester film layer B is one or a combination of more of talcum powder, calcium carbonate, kaolin or calcium oxide, and the mixed polyester in the polyester film layer B is a combination of PET resin or PEN resin.
4. The solar cell back sheet polyester film according to claim 2, characterized in that: the content of titanium dioxide in the layer A of the polyester film is 1-5%, and the content of boron nitride is 1-15%; the content of the UV resistant additive is 2 percent; the content of PET resin is 78-96%.
5. The solar cell back sheet polyester film according to claim 3, characterized in that: the content of talcum powder in the polyester film B layer is 0.5-5%, and the content of titanium dioxide in the polyester film B layer is 1-5%; the content of the mixed resin in the B layer of the polyester film is 90-98.5%, wherein the PET accounts for 60%, and the PEN accounts for 40%.
6. The solar cell back sheet polyester film according to claim 1, characterized in that: the polyester film has a water vapor transmission rate of 0.3 to 1.4g/m224h, the thermal conductivity coefficient of the polyester film is 1-5W/(m.k), and the reflectivity of the polyester film is 85-94%.
7. The solar cell back sheet polyester film according to claims 2 and 3, characterized in that: the granularity of titanium dioxide in the polyester film layer A is 6000-12000 meshes, and the granularity of boron nitride in the polyester film layer A is 50 nm. The granularity of the talcum powder in the high water-resistant polyester film B layer is 6000-12000 meshes, and the granularity of the titanium dioxide in the high water-resistant polyester film B layer is 6000-12000 meshes.
8. The solar cell back sheet polyester film according to claim 1, characterized in that: the total thickness of the polyester film is 150-350 mu m, the thickness of the layer A of the polyester film is 10-50 mu m, and the thickness of the layer B of the polyester film is 130-330 mu m.
9. The solar cell back sheet polyester film according to claim 1, characterized in that: the preparation method of the polyester film is a three-layer co-extrusion technology, and the ABA three-layer structure polyester film is obtained by casting, longitudinally drawing, transversely drawing and rolling.
10. According toThe solar cell backsheet polyester film of claim 1, characterized in that: the content of boron nitride in the layer A of the polyester film is 10%, the content of titanium dioxide is 4%, the content of an anti-UV agent is 2%, and the content of PET resin is 84%; in the polyester film layer B, the content of talcum powder is 1.5%, the content of titanium dioxide is 4%, the content of mixed resin is 94.5%, wherein the content of PET is 56.7%, and the content of PEN is 37.8%. The particle size of titanium dioxide in the polyester film layer A is 10000 meshes, the particle size of boron nitride is 50nm, the particle size of talcum powder in the polyester film layer B is 8000 meshes, and the particle size of titanium dioxide is 10000 meshes. The total thickness of the polyester film is 250 μm, wherein the thickness of the A layer is 20 μm, and the thickness of the B layer is 210 μm. The polyester film has water vapor transmission rate, heat conductivity coefficient and reflectivity of 0.4g/m2And 24h, the thermal conductivity coefficient of the polyester film is optimally 4W/(m.k), and the reflectivity of the polyester film is optimally 94%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811304662.2A CN111136982A (en) | 2018-11-05 | 2018-11-05 | High-water-resistance, high-heat-dissipation and high-reflection polyester film for solar cell backboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811304662.2A CN111136982A (en) | 2018-11-05 | 2018-11-05 | High-water-resistance, high-heat-dissipation and high-reflection polyester film for solar cell backboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111136982A true CN111136982A (en) | 2020-05-12 |
Family
ID=70515525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811304662.2A Withdrawn CN111136982A (en) | 2018-11-05 | 2018-11-05 | High-water-resistance, high-heat-dissipation and high-reflection polyester film for solar cell backboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111136982A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112388930A (en) * | 2020-10-28 | 2021-02-23 | 广东宝佳利绿印股份有限公司 | Insulating high heat conduction three-layer co-extrusion BOPET film |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102738275A (en) * | 2011-04-12 | 2012-10-17 | 苏州尚善新材料科技有限公司 | Solar cell assembly backplane and preparation method thereof |
| CN106910788A (en) * | 2017-03-10 | 2017-06-30 | 宁波长阳科技股份有限公司 | A kind of high resistant water type solar energy backboard polyester film and preparation method thereof |
| JP6405847B2 (en) * | 2014-09-30 | 2018-10-17 | 大日本印刷株式会社 | Glass adhesion sheet |
-
2018
- 2018-11-05 CN CN201811304662.2A patent/CN111136982A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102738275A (en) * | 2011-04-12 | 2012-10-17 | 苏州尚善新材料科技有限公司 | Solar cell assembly backplane and preparation method thereof |
| JP6405847B2 (en) * | 2014-09-30 | 2018-10-17 | 大日本印刷株式会社 | Glass adhesion sheet |
| CN106910788A (en) * | 2017-03-10 | 2017-06-30 | 宁波长阳科技股份有限公司 | A kind of high resistant water type solar energy backboard polyester film and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112388930A (en) * | 2020-10-28 | 2021-02-23 | 广东宝佳利绿印股份有限公司 | Insulating high heat conduction three-layer co-extrusion BOPET film |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6975262B2 (en) | Sealing sheet for high reflection gain type solar cells and applications | |
| US8580377B2 (en) | Laminated polyester film and solar panel made thereof | |
| KR101082449B1 (en) | Backsheet for solar battery and preparation method thereof | |
| US20110297212A1 (en) | Laminated polymer film and solar module made thereof | |
| KR101349734B1 (en) | Back sheet for solar cell module and solar cell module comprising the same | |
| TW201229102A (en) | Polyester film and method for producing same | |
| JP2006270025A (en) | Solar battery and thermoplastic resin sheet therefor | |
| CN103280479B (en) | Novel fluoride-free multilayer coextrusion solar cell back plate and preparation method thereof | |
| EP2367881B1 (en) | High temperature acrylic sheet | |
| CN105140328B (en) | Solar cell composite back membrane and preparation method thereof | |
| CN111136982A (en) | High-water-resistance, high-heat-dissipation and high-reflection polyester film for solar cell backboard | |
| CN115274900B (en) | Quantum dot photovoltaic backboard and double-sided photovoltaic module | |
| TW201231278A (en) | Laminated sheet and manufacturing method of the same | |
| CN106079773A (en) | A kind of power gain type solar energy back veneer material | |
| CN114536906B (en) | Power gain type black photovoltaic backboard | |
| CN109994566B (en) | Solar back panel film and preparation method thereof | |
| JP5831856B2 (en) | SOLAR CELL BACK SHEET AND METHOD FOR PRODUCING SOLAR CELL BACK SHEET | |
| CN217781043U (en) | Packaging adhesive film and photovoltaic module | |
| CN117681524A (en) | High-reflection ultraviolet-resistant photovoltaic module gap film and preparation method thereof | |
| JP2016206464A (en) | Reflection sheet, and solar cell module and led illumination using the same | |
| CN115274901A (en) | Up-conversion photovoltaic backboard and double-sided photovoltaic module | |
| WO2017187643A1 (en) | Reflective sheet, and solar cell module and led lighting device each using same | |
| CN111136983A (en) | High-water-blocking and high-heat-dissipation solar cell backboard polyester film easy to bond | |
| CN117558791B (en) | Light high-light-transmittance photovoltaic backboard and preparation method thereof | |
| CN115746720B (en) | Packaging adhesive film and photovoltaic module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200512 |