CN116218296A - High-weather-resistance coating composition for black backboard of photovoltaic cell assembly - Google Patents

High-weather-resistance coating composition for black backboard of photovoltaic cell assembly Download PDF

Info

Publication number
CN116218296A
CN116218296A CN202211095651.4A CN202211095651A CN116218296A CN 116218296 A CN116218296 A CN 116218296A CN 202211095651 A CN202211095651 A CN 202211095651A CN 116218296 A CN116218296 A CN 116218296A
Authority
CN
China
Prior art keywords
black
parts
coating composition
resin
photovoltaic back
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.)
Pending
Application number
CN202211095651.4A
Other languages
Chinese (zh)
Inventor
虞明东
薛煜东
丁万强
何斌
王世哲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Chengying New Material Co ltd
Shanghai Weikai Optoelectronic New Materials Co Ltd
Shanghai Chengying New Material Co Ltd
Jiangsu Chengying New Material Co Ltd
Original Assignee
Zhejiang Chengying New Material Co ltd
Shanghai Weikai Optoelectronic New Materials Co Ltd
Shanghai Chengying New Material Co Ltd
Jiangsu Chengying New Material Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Chengying New Material Co ltd, Shanghai Weikai Optoelectronic New Materials Co Ltd, Shanghai Chengying New Material Co Ltd, Jiangsu Chengying New Material Co Ltd filed Critical Zhejiang Chengying New Material Co ltd
Priority to CN202211095651.4A priority Critical patent/CN116218296A/en
Publication of CN116218296A publication Critical patent/CN116218296A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D127/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers
    • C09D127/02—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D127/12—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04—Homopolymers or copolymers of esters
    • C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C09D133/062—Copolymers with monomers not covered by C09D133/06
    • C09D133/066—Copolymers with monomers not covered by C09D133/06 containing -OH groups
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H01L31/042—PV modules or arrays of single PV cells
    • H01L31/048—Encapsulation of modules
    • H01L31/0481—Encapsulation of modules characterised by the composition of the encapsulation material
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/20—Applications use in electrical or conductive gadgets
    • C08L2203/204—Applications use in electrical or conductive gadgets use in solar cells
    • 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

Abstract

The invention provides a high weather-resistant coating composition for a black backboard of a photovoltaic cell assembly; the coating composition consists of a main agent and a curing agent, wherein the main agent comprises: 20-30 parts of fluorocarbon resin, 15-35 parts of acrylic resin, 10-30 parts of polyester resin, 10-20 parts of black pigment, 10-20 parts of inorganic filler, 1-5 parts of auxiliary agent and 90-130 parts of anhydrous diluent. According to the invention, the hydroxyl acrylic resin and the polyester resin with a special structure are mixed in the fluorocarbon resin, so that the adhesion force and the ultraviolet resistance of the black coating to the EVA are improved, and meanwhile, the adhesion force and the ultraviolet resistance of the black coating to PET are also improved, and the defect that the traditional fluorocarbon coating system is applied to black photovoltaic backboard coating is overcome.

Description

High-weather-resistance coating composition for black backboard of photovoltaic cell assembly
Technical Field
The invention belongs to the technical field of coatings, and relates to a high weather-resistant coating composition for a black backboard of a photovoltaic cell assembly.
Background
The photovoltaic module is a minimum indivisible photovoltaic cell assembly device which is integrated based on batteries, has encapsulation and internal connection and can independently provide direct current output. The single-chip generating capacity of the photovoltaic cell of the core component of the photovoltaic module is limited, and the core component of the photovoltaic module can be used as a power supply only by being connected in series and packaged into a module. The core photovoltaic cell in a photovoltaic module is typically encapsulated between a front glass on the solar light incident side and a photovoltaic backsheet disposed on the back side and sealed with an encapsulant material, typically an ethylene-vinyl acetate copolymer (EVA) resin. In order to ensure the service life of the photovoltaic module, the back plate is required to have better weather resistance and high sealing performance with the EVA adhesive layer.
With the vigorous development of integration of distributed photovoltaic and photovoltaic buildings in recent years, new requirements are put on the design of components, especially the appearance needs to be consistent in color system, and nowadays, integrated black components are increasingly popular, and the application of black photovoltaic back plates is also becoming wider. The black solar cell backboard is mainly used for a distributed power station and can achieve the color consistent with that of a black crystalline silicon cell slice and a black frame. The back plate has attractive color and can be coordinated with a building, meanwhile, the mechanical strength of the solar cell panel is guaranteed, and water vapor is prevented from penetrating into the sealing layer to influence the service life and the power generation efficiency of the cell. Because of the heat absorption effect of the black component, the black back plate has strict requirements on weather resistance in actual use, and has good environmental erosion resistance, electrical insulation, humidity and heat aging resistance, high temperature resistance and ultraviolet irradiation resistance.
Black back sheets are largely classified into a composite type and a coating type according to the type of adhesive layer. The composite back plate has high manufacturing cost due to the fact that the fluorine film is used as the bonding layer, the bonding property of the fluorine film and EVA is poor, and in addition, the fluorine film and the polyester base film are bonded through glue, so that the ageing and peeling problems easily occur in a high-humidity and hot environment. The coating type backboard is formed by compounding or coating materials such as fluorine-containing resin with weather resistance on a polyester base film and drying and curing. According to the prior art patents (CN 201410411372, CN20161053161, CN103805043 and the like), the requirements of the conventional white back plate on wet heat aging resistance and ultraviolet resistance are met, but the black back plate system has high product cost, and the problems of back plate delamination, poor adhesive force, poor weather resistance and ultraviolet resistance and the like still exist in the use process.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the high weather-resistant coating composition for the black backboard of the photovoltaic cell component, which meets the performance requirements such as high cohesiveness, ultraviolet resistance, damp and heat resistance, weather resistance and the like, and can reduce the cost and enhance the efficiency.
The aim of the invention is realized by the following technical scheme:
the invention provides a high weather-resistant coating composition for a black photovoltaic backboard, which comprises a main agent and a curing agent, wherein the main agent comprises the following components:
20-30 parts of fluorocarbon resin,
15-35 parts of acrylic resin,
10-30 parts of polyester resin,
10-20 parts of black pigment,
10-20 parts of inorganic filler,
1-5 parts of an auxiliary agent,
90-130 parts of anhydrous diluent;
the curing agent is one or more of 1, 6-Hexamethylene Diisocyanate (HDI), isophorone diisocyanate (IPDI) trimer, 1, 6-Hexamethylene Diisocyanate (HDI) trimer and 1, 6-Hexamethylene Diisocyanate (HDI) biuret;
the mass ratio of the main agent to the curing agent is 100:10-100:15.
Wherein the curing agent is preferably 1, 6-Hexamethylene Diisocyanate (HDI) trimer with a solid content of 100%. Preferably, there is a kesi N3300.
As one embodiment, the fluorocarbon resin is selected from fluorocarbon resins (FEVE) copolymerized from solvent-soluble fluoroolefins and alkyl vinyl ethers or alkyl vinyl esters. The FEVE resin comprises one or two of trifluorochloroethylene type and tetrafluorochloroethylene type fluorocarbon resins which are mixed according to any proportion. The fluorocarbon resin preferably has a hydroxyl value of 50-70mgKOH/g, an acid value of less than or equal to 10mgKOH/g, a solid content of more than or equal to 55% and a fluorine content of about 20-35% by weight. Preferably JF-2XA, mo Bo coating chemical Co.Ltd, ZHM-2 of east fluorine chemical industry trifluoro chloroethylene or GK570 of large gold fluorine chemical Co.Ltd.
As one embodiment, the acrylic resin is a (meth) hydroxyacrylic resin having long alkyl chain of 12-50 carbons; the (methyl) hydroxyl acrylic resin with long alkyl chain of 12-50 carbon is obtained by copolymerizing one or more of long-chain (methyl) acrylic monomer, short-chain (methyl) acrylic monomer and hydroxyl (methyl) acrylic monomer.
As one embodiment, the acrylic resin comprises one or more of (methyl) acrylic ester-hydroxyethyl acrylate, propyl ester copolymer, (methyl) acrylic ester-propyl acrylate-hydroxyethyl acrylate, propyl ester copolymer, (methyl) acrylic ester-butyl acrylate-hydroxyethyl acrylate, propyl ester copolymer, (methyl) acrylic ester-vinyl acrylate-hydroxyethyl acrylate, propyl ester copolymer, (methyl) acrylic ester- (dodecyl acrylate-hydroxyethyl acrylate, propyl ester copolymer, (methyl) acrylic ester- (cetyl acrylate-hydroxyethyl acrylate, propyl ester copolymer according to any proportion.
As one embodiment, the polyester resins include saturated and unsaturated aliphatic polyester resins containing hydroxyl-terminated functional groups. The polyester resin composition of the present invention is a special aromatic ring-free structure, and aliphatic saturated and unsaturated polyester containing terminal hydroxyl groups. The acid value and hydroxyl value requirements of the polyester resin used in the present resin composition are: hydroxyl value is 20-30mgKOH/g; the acid value is less than or equal to 4mgKOH/g.
As one embodiment, the black pigment is formed by mixing one or more of silicon rubber carbon black, iron oxide black, iron chromium black, copper chromium black, iron manganese black, nickel chromium black, ferrotitanium black, black pearl powder and organic black dye according to any proportion. Carbon black is preferred.
As one embodiment, the inorganic filler is formed by mixing one or more of titanium dioxide, calcium carbonate, silicon dioxide, talcum powder, kaolin, barium sulfate, talcum powder, montmorillonite, mica powder, white carbon black and aluminum oxide according to any proportion.
As one embodiment, the auxiliary agent is formed by mixing one or more of wetting dispersant, catalyst, leveling agent, defoamer and hydrolysis resistance agent according to any proportion.
The wetting dispersant is formed by mixing one or more of copolymer solution containing acidic groups, acrylic block copolymer, hydroxyl functional carboxylic acid ester, hyperbranched polyester and polyamine block copolymer solution according to any proportion.
The catalyst is a metal compound catalyst, and the metal compound catalyst comprises one or more of stannous octoate, dibutyl tin dilaurate, dioctyl tin dilaurate, monobutyl triisooctoate and zinc isooctoate which are mixed according to any proportion. Dibutyl tin dilaurate is preferred.
The anti-hydrolysis agent is carbodiimide or polycarbodiimide compound.
As one embodiment, the auxiliary agent comprises 0.8-2.5 parts of wetting dispersant, 0.5-1 part of catalyst and 0-2 parts of hydrolysis resistance agent.
As an embodiment, the anhydrous diluent is one or more than two of the following solvents mixed according to any proportion: toluene, xylene, n-butyl acetate, ethyl acetate, butanone, cyclohexanone, methyl ethyl ketone, cyclohexane, propylene glycol methyl ether acetate.
Compared with the prior art, the invention has the following beneficial effects:
(1) The invention provides a high-weatherability coating which is used as a bonding layer of a black photovoltaic backboard, wherein the side chain of an acrylic resin blended with fluorocarbon resin contains a longer carbon chain, so that the bonding force can be improved by winding between the acrylic resin and the EVA resin, and in addition, the main chain of the acrylic resin has more ester bond groups, so that the adhesive force of the acrylic resin on a polyester base film can be improved;
(2) By simultaneously replacing and adding saturated and unsaturated aliphatic polyester resin containing hydroxyl-terminated functional groups into the black coating, the overall flexibility of the coating is improved, the brittleness is reduced, the adhesion to a substrate is further improved under the condition of ensuring better adhesion with EVA, and the ultraviolet aging resistance of a finished back plate is improved;
(3) The coating prepared by the invention can give consideration to the adhesion of the coating itself, a polyester base film and a packaging material, has high peel strength and excellent weather resistance and durability, and besides the introduction of conventional acrylic resin, the coating is matched with polyester resin with a special structure, so that the overall performance is improved, and the application cost of the coating is further greatly reduced.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present invention.
The main agent of the invention can be prepared by the following method: weighing anhydrous diluent, sequentially adding fluorocarbon resin, acrylic resin, polyester resin, black pigment, inorganic filler and wetting dispersant, uniformly dispersing at high speed, pouring into a sand mill, and grinding until the particle fineness is less than or equal to 2 mu m; and adding other assistants such as a catalyst, adding an anhydrous diluent to the solid content of 50%, dispersing and mixing at a high speed, filtering, sealing and filling in a drying container.
The high weather-resistant coating composition for the black photovoltaic backboard has the following specific application on a solar module: mixing the bonding coating main agent, a curing agent and a diluent in a prescribed proportion for 30min uniformly (the amount of the diluent depends on the preset coating thickness), coating on a polyester base film, and drying to prepare a high-bonding back plate; and laminating the prepared high-adhesion back plate with a battery assembly through an encapsulating material. The average thickness of the polyester base film is 150-300 mu m, and the material is mainly polyethylene terephthalate (PET); the encapsulation material is predominantly ethylene vinyl acetate copolymer (EVA).
The polyester base film is subjected to surface treatment before being coated with the bonding coating, and flame treatment, atmospheric pressure plasma treatment, corona treatment, low pressure plasma treatment, ultraviolet treatment and the like can be selected; in addition, corona treatment is preferred for a period of time of 1 to 10s; the coating mode can be selected from rolling coating, spraying, dip coating and brush coating; the thickness of the coating dry weight is 6-30 mu m, the curing temperature is 150-180 ℃ and the curing time is 10-30min.
Examples 1 to 9
The embodiment provides a high weather-resistant coating composition for a black photovoltaic backboard, which comprises a main agent and a curing agent; the specific formulation is shown in Table 1.
Comparative examples 1 to 7
The comparative example provides a coating composition for a black photovoltaic back sheet, comprising a main agent and a curing agent; the specific formulation is shown in Table 1.
Table 1 examples and comparative examples formulation tables
Figure BDA0003834881250000051
Wherein, the fluorocarbon resin is GK570 of Dajinfeier limited company, the acrylic resin 1 is ACR6730 of Gaoming Tongde chemical industry, the acrylic resin 2 is Borill BM51, the polyester resin 1 is Izeman polyester resin IC3020, the polyester resin 2 is east ocean textile GK680, the inorganic filler is Grace Syloid_ED30 silicon dioxide,desoxhick black 50L, wetting dispersant BYK-163, dibutyl tin dilaurate as catalyst and lang Yi as hydrolysis inhibitor
Figure BDA0003834881250000052
The curing agent is Desmodur N3300, and the solvent is butyl acetate.
Performance testing
The test method is as follows:
1. peel strength of back plate and EVA adhesive film
The peel strength values were recorded as determined according to national standard GB/T2790-1995.
2. Resistance to damp heat and ultraviolet ray:
the performance test of the photovoltaic cell backboard is carried out according to the GB/T2423.3 test method and the insulating backboard standard for the GB/T31034-2014 crystalline silicon solar cell module. The adhesion force of the sample is tested according to the standard of ISO-2409-2007 before and after the experiment; the yellowing index (DeltaYI) of the swatches was determined according to national standard GB 2409-80.
Table 2 results of performance tests for each of examples and comparative examples
Figure BDA0003834881250000061
Comparing the data in table 1, the coated black photovoltaic backboard prepared by the high-cohesiveness weather-resistant coating provided by the invention has high peeling strength with the packaging material, and can still maintain higher adhesive force after being aged for 2000 hours at high temperature and humidity than the comparative example. After being irradiated by UV180KWH, the adhesive force is good, and the yellowing index is smaller than 2.
In summary, the invention improves the adhesion force and the ultraviolet resistance of PET (polyethylene terephthalate) while improving the adhesion force and the wet heat resistance of a black coating and EVA by simultaneously mixing the hydroxy acrylic resin and the polyester resin with a special structure in the fluorocarbon resin, and solves the defect that the traditional fluorocarbon coating system is applied to black photovoltaic backboard coating. In addition, the invention improves the comprehensive ageing resistance of the coating, ensures better blackness and coverage rate, and solves the defect of poor damp-heat resistance and ultraviolet resistance of the traditional black coating.
The foregoing describes specific embodiments of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the invention. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.

Claims (10)

1. A high weatherability coating composition for black photovoltaic back sheet comprising a main agent and a curing agent, characterized in that the main agent comprises:
20-30 parts of fluorocarbon resin,
15-35 parts of acrylic resin,
10-30 parts of polyester resin,
10-20 parts of black pigment,
10-20 parts of inorganic filler,
1-5 parts of an auxiliary agent,
90-130 parts of anhydrous diluent;
the curing agent is one or more of 1, 6-hexamethylene diisocyanate, isophorone diisocyanate trimer, 1, 6-hexamethylene diisocyanate trimer and 1, 6-hexamethylene diisocyanate biuret;
the mass ratio of the main agent to the curing agent is 100:10-100:15.
2. The high weathering coating composition for black photovoltaic back sheets according to claim 1, wherein the fluorocarbon resin is selected from solvent-soluble FEVE resins; comprises one or two of trifluorochloroethylene type fluorocarbon resin and tetrafluorochloroethylene type fluorocarbon resin.
3. The high weather resistant coating composition for black photovoltaic back sheet according to claim 1, wherein the acrylic resin is a (meth) hydroxyacrylic resin having a long alkyl chain of 12 to 50 carbons; the (methyl) hydroxyl acrylic resin with long alkyl chain of 12-50 carbon is obtained by copolymerizing one or more of long-chain (methyl) acrylic monomer, short-chain (methyl) acrylic monomer and hydroxyl (methyl) acrylic monomer.
4. The highly weatherable coating composition for a black photovoltaic back sheet according to claim 1, wherein the polyester resin is a saturated or unsaturated aliphatic polyester resin containing a hydroxyl-terminated functional group; the hydroxyl value of the polyester resin is 20-30mgKOH/g, and the acid value of the polyester resin is 0-4mgKOH/g.
5. The high weather resistant coating composition for black photovoltaic back sheet according to claim 1, wherein the black pigment is one or more of silicone rubber carbon black, iron oxide black, iron chromium black, copper chromium black, iron manganese black, nickel chromium black, titanium iron black, black pearlescent powder, organic black dye.
6. The high weather resistant coating composition for black photovoltaic back sheet according to claim 1, wherein the inorganic filler is one or more of titanium dioxide, calcium carbonate, silicon dioxide, talc, kaolin, barium sulfate, talc, montmorillonite, mica powder, white carbon black, and alumina.
7. The high weather resistant coating composition for black photovoltaic back sheet according to claim 1, wherein the auxiliary agent is one or more of wetting dispersant, catalyst, leveling agent, defoamer, and hydrolysis inhibitor.
8. The high weather resistant coating composition for black photovoltaic back sheet according to claim 1, wherein the auxiliary agent comprises 0.8 to 2.5 parts of wetting dispersant, 0.5 to 1 part of catalyst, and 0 to 2 parts of hydrolysis inhibitor.
9. The highly weatherable coating composition for black photovoltaic back sheets according to claim 7 or 8, wherein the wetting dispersant is one or more of an acidic group-containing copolymer solution, an acrylic block copolymer, a hydroxyl functional carboxylate, a highly branched polyester, a polyamine block copolymer solution; the catalyst is a metal compound catalyst and comprises one or more of stannous octoate, dibutyl tin dilaurate, dioctyl tin dilaurate, monobutyl triisooctoate and zinc isooctanoate; the anti-hydrolysis agent is carbodiimide or polycarbodiimide compound.
10. The highly weatherable coating composition for a black photovoltaic back sheet according to claim 1, wherein the anhydrous diluent is one or more of toluene, xylene, n-butyl acetate, ethyl acetate, butanone, cyclohexanone, methyl ethyl ketone, cyclohexane, propylene glycol methyl ether acetate.
CN202211095651.4A 2022-09-06 2022-09-06 High-weather-resistance coating composition for black backboard of photovoltaic cell assembly Pending CN116218296A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211095651.4A CN116218296A (en) 2022-09-06 2022-09-06 High-weather-resistance coating composition for black backboard of photovoltaic cell assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211095651.4A CN116218296A (en) 2022-09-06 2022-09-06 High-weather-resistance coating composition for black backboard of photovoltaic cell assembly

Publications (1)

Publication Number Publication Date
CN116218296A true CN116218296A (en) 2023-06-06

Family

ID=86577304

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211095651.4A Pending CN116218296A (en) 2022-09-06 2022-09-06 High-weather-resistance coating composition for black backboard of photovoltaic cell assembly

Country Status (1)

Country Link
CN (1) CN116218296A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116496652A (en) * 2023-06-29 2023-07-28 优美特（北京）环境材料科技股份公司 Acrylic acid powder coating and application thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101792639A (en) * 2010-04-02 2010-08-04 德莱特恩环保涂料(北京)有限公司 Wear-resisting scratch-resisting weather-proof polyurethane coating and preparation method thereof
JP2014114350A (en) * 2012-12-07 2014-06-26 Dic Corp Curable coating composition, laminate polyester resin film and solar cell back sheet
JP2014133815A (en) * 2013-01-10 2014-07-24 Dic Corp Easily adhesive composition, laminated polyester resin film and solar battery back sheet
CN109796806A (en) * 2018-12-28 2019-05-24 苏州福斯特光伏材料有限公司 A kind of patterning photovoltaic back and preparation method thereof
CN112745753A (en) * 2020-12-30 2021-05-04 常州威斯敦粘合材料有限责任公司 Outer layer transparent coating, photovoltaic transparent back plate and preparation method thereof
CN113817365A (en) * 2021-10-15 2021-12-21 苏州赛伍应用技术股份有限公司 Weather-resistant paint for photovoltaic back plate and preparation method and application thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101792639A (en) * 2010-04-02 2010-08-04 德莱特恩环保涂料(北京)有限公司 Wear-resisting scratch-resisting weather-proof polyurethane coating and preparation method thereof
JP2014114350A (en) * 2012-12-07 2014-06-26 Dic Corp Curable coating composition, laminate polyester resin film and solar cell back sheet
JP2014133815A (en) * 2013-01-10 2014-07-24 Dic Corp Easily adhesive composition, laminated polyester resin film and solar battery back sheet
CN109796806A (en) * 2018-12-28 2019-05-24 苏州福斯特光伏材料有限公司 A kind of patterning photovoltaic back and preparation method thereof
CN112745753A (en) * 2020-12-30 2021-05-04 常州威斯敦粘合材料有限责任公司 Outer layer transparent coating, photovoltaic transparent back plate and preparation method thereof
CN113817365A (en) * 2021-10-15 2021-12-21 苏州赛伍应用技术股份有限公司 Weather-resistant paint for photovoltaic back plate and preparation method and application thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116496652A (en) * 2023-06-29 2023-07-28 优美特（北京）环境材料科技股份公司 Acrylic acid powder coating and application thereof
CN116496652B (en) * 2023-06-29 2023-09-22 优美特（北京）环境材料科技股份公司 Acrylic acid powder coating and application thereof

Similar Documents

Publication Publication Date Title
CN102246318B (en) Film for sealing back side of solar cell, material for sealing back side of solar cell, and solar cell module
CN110016283B (en) Coating for solar cell back plate
CN106833164B (en) A kind of fluororesin two-component coating and its application on photovoltaic component back plate
TWI634181B (en) Polyol composition, adhesive coating agent, cured product thereof, adhesive sheet, and solar cell module
CN106010414A (en) High-cohesiveness fluorocarbon coating and application
CN104151953A (en) Weatherability fluorocarbon paint and preparation method thereof
CN108841344B (en) High-adhesion weather-resistant base coating and application thereof
CN104201224A (en) Transparent back plate for solar cell module
CN116218296A (en) High-weather-resistance coating composition for black backboard of photovoltaic cell assembly
CN113817365A (en) Weather-resistant paint for photovoltaic back plate and preparation method and application thereof
CN108410340A (en) A kind of black weather-resistant coating and preparation method and application
CN107353859A (en) A kind of compound photovoltaic back dielectric adhesive material and application
CN102227818A (en) Film for backside sealing sheet for solar cells
CN105914248A (en) Solar cell module-used backplane with high CTI value
CN115386272A (en) Coating composition, back sheet and photovoltaic module
CN115274900B (en) Quantum dot photovoltaic backboard and double-sided photovoltaic module
CN113736395A (en) High-weather-resistance bonding coating for transparent back plate for solar cell module
CN114958064A (en) Coating, solar cell backboard and solar cell backboard assembly
CN115477875B (en) Black radiation cooling functional coating, manufacturing method, backboard and application
JP2013251427A (en) Film for solar cell module back-surface sealing sheet
CN115926546A (en) Single-component weather-resistant coating and application thereof
CN105576063A (en) Solar cell backboard
CN113528046A (en) High-adhesion high-weather-resistance coating type solar cell backboard and preparation method thereof
TW201038399A (en) Film for material for sealing back side of solar cell, material for sealing back side of solar cell using the same and solar cell module
CN114032010A (en) Color steel plate suitable for metal roof BIPV system

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