CN113442402A - POE material-based high-weather-resistance photovoltaic adhesive film preparation process - Google Patents
POE material-based high-weather-resistance photovoltaic adhesive film preparation process Download PDFInfo
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- CN113442402A CN113442402A CN202110878045.9A CN202110878045A CN113442402A CN 113442402 A CN113442402 A CN 113442402A CN 202110878045 A CN202110878045 A CN 202110878045A CN 113442402 A CN113442402 A CN 113442402A
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- film
- adhesive film
- matrix
- preparation process
- weather
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- 239000000463 material Substances 0.000 title claims abstract description 47
- 239000002313 adhesive film Substances 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 238000010096 film blowing Methods 0.000 claims abstract description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000002994 raw material Substances 0.000 claims abstract description 38
- 239000012792 core layer Substances 0.000 claims abstract description 27
- 239000002245 particle Substances 0.000 claims abstract description 19
- 239000000945 filler Substances 0.000 claims abstract description 17
- 239000010410 layer Substances 0.000 claims abstract description 17
- 238000005303 weighing Methods 0.000 claims abstract description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 12
- 238000007731 hot pressing Methods 0.000 claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 7
- 239000011159 matrix material Substances 0.000 claims description 60
- 238000001125 extrusion Methods 0.000 claims description 45
- 239000000758 substrate Substances 0.000 claims description 35
- 239000003431 cross linking reagent Substances 0.000 claims description 25
- 238000001816 cooling Methods 0.000 claims description 21
- 239000008367 deionised water Substances 0.000 claims description 15
- 229910021641 deionized water Inorganic materials 0.000 claims description 15
- 239000012752 auxiliary agent Substances 0.000 claims description 13
- 238000007493 shaping process Methods 0.000 claims description 11
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 10
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- -1 polytetrafluoroethylene Polymers 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 6
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 claims description 5
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 5
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims description 5
- QZPSOSOOLFHYRR-UHFFFAOYSA-N 3-hydroxypropyl prop-2-enoate Chemical compound OCCCOC(=O)C=C QZPSOSOOLFHYRR-UHFFFAOYSA-N 0.000 claims description 5
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 5
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 5
- 230000003712 anti-aging effect Effects 0.000 claims description 5
- 238000007664 blowing Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 239000004088 foaming agent Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 229920000642 polymer Polymers 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- PFBLRDXPNUJYJM-UHFFFAOYSA-N tert-butyl 2-methylpropaneperoxoate Chemical compound CC(C)C(=O)OOC(C)(C)C PFBLRDXPNUJYJM-UHFFFAOYSA-N 0.000 claims description 5
- 238000002425 crystallisation Methods 0.000 claims description 4
- 230000008025 crystallization Effects 0.000 claims description 4
- 239000007822 coupling agent Substances 0.000 claims 1
- BUZRAOJSFRKWPD-UHFFFAOYSA-N isocyanatosilane Chemical group [SiH3]N=C=O BUZRAOJSFRKWPD-UHFFFAOYSA-N 0.000 claims 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 238000011049 filling Methods 0.000 abstract description 2
- 230000004048 modification Effects 0.000 abstract description 2
- 238000012986 modification Methods 0.000 abstract description 2
- 230000035699 permeability Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 14
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 14
- 229920006124 polyolefin elastomer Polymers 0.000 description 13
- 239000000243 solution Substances 0.000 description 11
- 239000007788 liquid Substances 0.000 description 5
- 239000006087 Silane Coupling Agent Substances 0.000 description 4
- NOKSMMGULAYSTD-UHFFFAOYSA-N [SiH4].N=C=O Chemical group [SiH4].N=C=O NOKSMMGULAYSTD-UHFFFAOYSA-N 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003999 initiator Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000071 blow moulding Methods 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 229920000734 polysilsesquioxane polymer Polymers 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0021—Combinations of extrusion moulding with other shaping operations combined with joining, lining or laminating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B13/00—Conditioning or physical treatment of the material to be shaped
- B29B13/06—Conditioning or physical treatment of the material to be shaped by drying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0017—Combinations of extrusion moulding with other shaping operations combined with blow-moulding or thermoforming
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/07—Flat, e.g. panels
- B29C48/08—Flat, e.g. panels flexible, e.g. films
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
- B29C48/911—Cooling
- B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/0066—Use of inorganic compounding ingredients
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
- C09J123/04—Homopolymers or copolymers of ethene
- C09J123/08—Copolymers of ethene
- C09J123/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C09J123/0853—Vinylacetate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of 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; Derivatives of such polymers
- C08J2327/02—Characterised by the use of 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; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/12—Characterised by the use of 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; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/322—Applications of adhesives in processes or use of adhesives in the form of films or foils for the production of solar panels
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/16—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer
- C09J2301/162—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer the carrier being a laminate constituted by plastic layers only
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2423/00—Presence of polyolefin
- C09J2423/04—Presence of homo or copolymers of ethene
- C09J2423/046—Presence of homo or copolymers of ethene in the substrate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2427/00—Presence of halogenated polymer
- C09J2427/006—Presence of halogenated polymer in the substrate
Abstract
The invention discloses a POE material-based photovoltaic adhesive film preparation process with high weather resistance, belonging to the field of photovoltaic adhesive film technology clamping, and specifically comprising the following steps: s1, prefabricating raw materials; s2, weighing raw materials; s3, mixing and extruding; s4, hot pressing. According to the invention, the air permeability and the water resistance of the inner film and the laminated bottom layer are modified and enhanced by filling the modified filler silicon dioxide and the iron powder particles in the micropores, meanwhile, the impact resistance of the inner film can be enhanced by the iron powder particles, the overall strength of the photovoltaic module adhesive film after being covered is improved, the treatment modification of the water-resisting strength is realized by the POE material of the core layer, and the control and adjustment of the film blowing thickness of the multilayer base material are realized by the multilayer press-fit adhesive film and the bypass air pump during preparation, so that the thickness of the photovoltaic adhesive film can be accurately controlled, the overall weather resistance of the photovoltaic adhesive film is improved, the photovoltaic module panel corrosion caused by water seepage of the base layer surface is avoided, and the overall durable service life of the assembled photovoltaic module is prolonged.
Description
Technical Field
The invention belongs to the technical field of photovoltaic adhesive films, and particularly relates to a POE (polyolefin elastomer) material-based preparation process of a photovoltaic adhesive film with high weather resistance.
Background
A typical photovoltaic module is composed of a solar cell, a back sheet, photovoltaic glass, a junction box, a frame, an encapsulating material, and the like. The packaging adhesive film material is positioned between the photovoltaic glass and the solar cell, can bond the solar cell, the copper-tin solder strip, the back plate, the photovoltaic glass and the like together, and is a key component of the photovoltaic module. An ethylene-vinyl acetate copolymer (EVA) encapsulation adhesive film in a photovoltaic cell is a thermosetting adhesive film with tackiness, and since the EVA adhesive film has special advantages in terms of adhesiveness, durability, optical characteristics, and the like, it is widely used in photovoltaic modules and various optical products.
Chinese patent document publication No. CN104592907B discloses a preparation process of a high-performance EVA photovoltaic packaging adhesive film and a product thereof, wherein the preparation process comprises the following raw material components in parts by weight: 94.5-98% of EVA resin, 24-28% of VA content in the EVA resin and 15-35 g/10min of melt flow rate of the EVA resin; 0.3 to 3 percent of polyfunctional group cage type polysilsesquioxane; 0.2 to 1 percent of crosslinking initiator and/or 0.2 to 1 percent of coupling initiator; 0.1 to 0.5 percent of ultraviolet aging resistant auxiliary agent, liquid or solid with the melting point less than 90 ℃; the invention obtains the finished EVA adhesive film by mixing, granulating, melting and extruding into a film by a die head, pressing the film by a compression roller, cooling and shaping, and rolling.
Disclosure of Invention
The invention aims to: in order to solve the problems that the water permeation protection capability of a base layer is lacked, the ventilation and water resistance capability of the base layer is lacked, and the corrosion damage of a panel is easily caused when the surface of the base layer is subjected to water seepage, the POE material-based photovoltaic adhesive film preparation process with high weather resistance is provided.
In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation process of a photovoltaic adhesive film with high weather resistance based on a POE material specifically comprises the following steps:
s1, prefabricating raw materials, placing multiple master batches in the first matrix, the second matrix and the third matrix into a dryer for low-temperature drying for 20min, and removing moisture in the master batches of the matrixes;
s2, weighing raw materials, precisely weighing the processed raw materials of the first matrix, the second matrix and the third matrix according to the formula amount, and weighing the cross-linking agent, the tackifying assistant, the anti-aging assistant and a certain amount of water in the corresponding formula amounts of the first matrix, the second matrix and the third matrix;
s3, mixing and extruding, namely placing the weighed first substrate, second substrate and third substrate into a double-screw extruder of a multilayer co-extrusion device corresponding to an outer layer, an inner layer and a core layer respectively, heating the multilayer co-extrusion device to fully heat and melt the placed materials, waiting for the raw materials and auxiliary materials to be fully dissolved, fully stirring and mixing the melted materials by the extruder through the movement of double screws, and extruding, wherein the multilayer co-extrusion device blows out outer films, core layers and inner films corresponding to the substrates of the first substrate, the second substrate and the third substrate through a plurality of extrusion ports;
s4, hot pressing, namely extruding the mixture in a double-screw extruder of the multilayer co-extrusion equipment, blowing the outer film, the core layer and the inner film out through a film blowing nozzle, drawing the outer film, the core layer and the inner film to a compression roller of a hot pressing mechanism of the multilayer co-extrusion processing equipment through a front end drawing mechanism for pressing, and shaping and rolling the pressed film material to obtain the photovoltaic adhesive film product.
As a further description of the above technical solution:
s3 further comprises a thickness control method for extruding an outer film, a core layer and an inner film, and specifically comprises the steps of arranging a film thickness monitor near a film blowing nozzle of an extrusion port of the multilayer co-extrusion equipment, arranging a film blowing bypass and a high-pressure air pump at the film blowing nozzle, controlling the air equivalent of the film blowing nozzle by the film blowing bypass and the high-pressure air pump in a follow-up mode after the film thickness monitor monitors the current film thickness, adjusting and controlling the air supply quantity or the extrusion quantity to adjust the film blowing thickness, and stopping the work of the high-pressure air pump of the film blowing bypass after the corresponding air equivalent of the film blowing nozzle is adjusted by the original air path of the film blowing nozzle.
As a further description of the above technical solution:
and further comprising the step of cooling and shaping the hot-pressed adhesive film product in S4, and specifically comprising the step of cooling the bottom of the polymer by using water cooling and stopping the water cooling pump machine pumping liquid.
As a further description of the above technical solution:
and the drawing speed of the laminated film in the S4 is 5-8 m/min.
As a further description of the above technical solution:
the cross-linking agent comprises one or more of tert-butyl peroxyisobutyrate, acrylic acid, hydroxyethyl acrylate, hydroxypropyl acrylate, methacrylic acid and hydroxyethyl methacrylate.
As a further description of the above technical solution:
the tackifying assistant is an isocyanate silane coupling agent.
As a further description of the above technical solution:
the first matrix raw material comprises the following components in parts by weight: 96-99% of EVA master batch, 0.1-2% of cross-linking agent, 0.1-2% of tackifying auxiliary agent and a certain amount of deionized water.
As a further description of the above technical solution:
the second matrix raw material comprises the following components in parts by weight: 96-99% of POE master batch, 0.1-2% of cross-linking agent, 0.1-2% of tackifying auxiliary agent and a certain amount of deionized water.
As a further description of the above technical solution:
the third matrix raw material comprises, by weight, 96-99% of polytetrafluoroethylene particles, 0.1-2% of a cross-linking agent, 0.1-2% of a tackifying assistant, 0.1-2% of a foaming agent, 2-4% of a modified filler and a certain amount of deionized water.
As a further description of the above technical solution:
the modified filler is silicon dioxide and iron powder particles, and the particle size of the modified filler is less than 10 mu m.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
in the invention, the third base material is designed to be polytetrafluoroethylene which is taken as the base material, so that the generation and the expansion of micropores of the base material can be realized when the inner film is formed by blow molding, meanwhile, the air permeability and the water resistance of the inner film and the joint bottom layer are modified and enhanced by filling modified filler silicon dioxide and iron powder particles in the micropores, meanwhile, the iron powder particles can enhance the impact resistance of the inner film, improve the overall strength of the photovoltaic module after being covered by the adhesive film, realize the treatment and modification of the water-proof strength through the POE material of the core layer, and realizes the control and adjustment of the film blowing thickness of the multilayer base material by the multilayer laminated adhesive film and the bypass air pump during the preparation, therefore, the requirement for accurately controlling the thickness of the photovoltaic adhesive film can be met, the overall weather resistance of the photovoltaic adhesive film is improved, the photovoltaic module panel is prevented from being corroded due to water seepage of the base layer surface, and the overall service life of the assembled photovoltaic module is prolonged.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The invention provides a technical scheme that: a preparation process of a photovoltaic adhesive film with high weather resistance based on a POE material specifically comprises the following steps:
s1, prefabricating raw materials, placing multiple master batches in the first matrix, the second matrix and the third matrix into a dryer for low-temperature drying for 20min, and removing moisture in the master batches of the matrixes;
s2, weighing raw materials, precisely weighing the processed raw materials of the first matrix, the second matrix and the third matrix according to the formula amount, and weighing the cross-linking agent, the tackifying assistant, the anti-aging assistant and a certain amount of water in the corresponding formula amounts of the first matrix, the second matrix and the third matrix;
s3, mixing and extruding, namely placing the weighed first substrate, second substrate and third substrate into a double-screw extruder of a multilayer co-extrusion device corresponding to an outer layer, an inner layer and a core layer respectively, heating the multilayer co-extrusion device to fully heat and melt the placed materials, waiting for the raw materials and auxiliary materials to be fully dissolved, fully stirring and mixing the melted materials by the extruder through the movement of double screws, and extruding, wherein the multilayer co-extrusion device blows out outer films, core layers and inner films corresponding to the substrates of the first substrate, the second substrate and the third substrate through a plurality of extrusion ports;
s4, hot pressing, namely extruding the mixture in a double-screw extruder of the multilayer co-extrusion equipment, blowing the outer film, the core layer and the inner film out through a film blowing nozzle, drawing the outer film, the core layer and the inner film to a compression roller of a hot pressing mechanism of the multilayer co-extrusion processing equipment through a front end drawing mechanism for pressing, and shaping and rolling the pressed film material to obtain the photovoltaic adhesive film product.
The S3 further comprises a thickness control method for extruding an outer film, a core layer and an inner film, and specifically comprises the steps of arranging a film thickness monitor near a film blowing nozzle of an extrusion port of the multilayer co-extrusion equipment, arranging a film blowing bypass and a high-pressure air pump at the film blowing nozzle, controlling the air equivalent of the film blowing nozzle by controlling the film blowing bypass and the high-pressure air pump in a follow-up mode after the film thickness monitor monitors the current film thickness, adjusting and controlling the air supply quantity or the extrusion quantity to adjust the film blowing thickness, and stopping the high-pressure air pump of the film blowing bypass after the original air path of the film blowing nozzle adjusts the corresponding film blowing air equivalent;
cooling and shaping the hot-pressed adhesive film product in S4, specifically, cooling the bottom of the polymer by using lower water cooling to wait for the temperature to be reduced to the crystallization temperature, and stopping the lower water cooling pump machine to pump liquid, wherein the traction rate of the laminating film in S4 is 5-8 m/min;
the cross-linking agent comprises one or more of tert-butyl peroxyisobutyrate, acrylic acid, hydroxyethyl acrylate, hydroxypropyl acrylate, methacrylic acid and hydroxyethyl methacrylate, and the tackifying assistant is an isocyanate silane coupling agent;
the first matrix raw material comprises the following components in parts by weight: 96% of EVA master batch, 2% of cross-linking agent, 02% of tackifying auxiliary agent and a certain amount of deionized water;
the second matrix raw material comprises the following components in parts by weight: 96% of POE master batch, 2% of cross-linking agent, 2% of tackifying auxiliary agent and a certain amount of deionized water;
the third matrix raw material comprises, by weight, 96% of polytetrafluoroethylene particles, 2% of a cross-linking agent, 2% of a tackifying auxiliary agent, 2% of a foaming agent, 2-4% of modified filler and a certain amount of deionized water, wherein the modified filler is silicon dioxide and iron powder particles, and the particle size of the modified filler is less than 10 μm.
Example 2
Different from the embodiment 1, the invention also provides a preparation process of the photovoltaic adhesive film based on the POE material and having strong weather resistance, which specifically comprises the following steps:
s1, prefabricating raw materials, placing multiple master batches in the first matrix, the second matrix and the third matrix into a dryer for low-temperature drying for 20min, and removing moisture in the master batches of the matrixes;
s2, weighing raw materials, precisely weighing the processed raw materials of the first matrix, the second matrix and the third matrix according to the formula amount, and weighing the cross-linking agent, the tackifying assistant, the anti-aging assistant and a certain amount of water in the corresponding formula amounts of the first matrix, the second matrix and the third matrix;
s3, mixing and extruding, namely placing the weighed first substrate, second substrate and third substrate into a double-screw extruder of a multilayer co-extrusion device corresponding to an outer layer, an inner layer and a core layer respectively, heating the multilayer co-extrusion device to fully heat and melt the placed materials, waiting for the raw materials and auxiliary materials to be fully dissolved, fully stirring and mixing the melted materials by the extruder through the movement of double screws, and extruding, wherein the multilayer co-extrusion device blows out outer films, core layers and inner films corresponding to the substrates of the first substrate, the second substrate and the third substrate through a plurality of extrusion ports;
s4, hot pressing, namely extruding the mixture in a double-screw extruder of the multilayer co-extrusion equipment, blowing the outer film, the core layer and the inner film out through a film blowing nozzle, drawing the outer film, the core layer and the inner film to a compression roller of a hot pressing mechanism of the multilayer co-extrusion processing equipment through a front end drawing mechanism for pressing, and shaping and rolling the pressed film material to obtain the photovoltaic adhesive film product.
The S3 further comprises a thickness control method for extruding an outer film, a core layer and an inner film, and specifically comprises the steps of arranging a film thickness monitor near a film blowing nozzle of an extrusion port of the multilayer co-extrusion equipment, arranging a film blowing bypass and a high-pressure air pump at the film blowing nozzle, controlling the air equivalent of the film blowing nozzle by controlling the film blowing bypass and the high-pressure air pump in a follow-up mode after the film thickness monitor monitors the current film thickness, adjusting and controlling the air supply quantity or the extrusion quantity to adjust the film blowing thickness, and stopping the high-pressure air pump of the film blowing bypass after the original air path of the film blowing nozzle adjusts the corresponding film blowing air equivalent;
cooling and shaping the hot-pressed adhesive film product in S4, specifically, cooling the bottom of the polymer by using lower water cooling to wait for the temperature to be reduced to the crystallization temperature, and stopping the lower water cooling pump machine to pump liquid, wherein the traction rate of the laminating film in S4 is 5-8 m/min;
the cross-linking agent comprises one or more of tert-butyl peroxyisobutyrate, acrylic acid, hydroxyethyl acrylate, hydroxypropyl acrylate, methacrylic acid and hydroxyethyl methacrylate, and the tackifying assistant is an isocyanate silane coupling agent;
the first matrix raw material comprises the following components in parts by weight: 97% of EVA master batch, 1.5% of cross-linking agent, 1.5% of tackifying auxiliary agent and a certain amount of deionized water;
the second matrix raw material comprises the following components in parts by weight: 97 percent of POE master batch, 1.5 percent of cross-linking agent, 1.5 percent of tackifying auxiliary agent and a certain amount of deionized water;
the third matrix raw material comprises 97% of polytetrafluoroethylene particles, 1.5% of cross-linking agent, 1.5% of tackifying assistant, 1.25% of foaming agent, 3% of modified filler and a certain amount of deionized water in parts by weight, wherein the modified filler is silicon dioxide and iron powder particles, and the particle size of the modified filler is less than 10 mu m.
Example 3
Different from the embodiments 1-2, the invention also discloses a preparation process of the photovoltaic adhesive film based on the POE material and having strong weather resistance, which specifically comprises the following steps:
s1, prefabricating raw materials, placing multiple master batches in the first matrix, the second matrix and the third matrix into a dryer for low-temperature drying for 20min, and removing moisture in the master batches of the matrixes;
s2, weighing raw materials, precisely weighing the processed raw materials of the first matrix, the second matrix and the third matrix according to the formula amount, and weighing the cross-linking agent, the tackifying assistant, the anti-aging assistant and a certain amount of water in the corresponding formula amounts of the first matrix, the second matrix and the third matrix;
s3, mixing and extruding, namely placing the weighed first substrate, second substrate and third substrate into a double-screw extruder of a multilayer co-extrusion device corresponding to an outer layer, an inner layer and a core layer respectively, heating the multilayer co-extrusion device to fully heat and melt the placed materials, waiting for the raw materials and auxiliary materials to be fully dissolved, fully stirring and mixing the melted materials by the extruder through the movement of double screws, and extruding, wherein the multilayer co-extrusion device blows out outer films, core layers and inner films corresponding to the substrates of the first substrate, the second substrate and the third substrate through a plurality of extrusion ports;
s4, hot pressing, namely extruding the mixture in a double-screw extruder of the multilayer co-extrusion equipment, blowing the outer film, the core layer and the inner film out through a film blowing nozzle, drawing the outer film, the core layer and the inner film to a compression roller of a hot pressing mechanism of the multilayer co-extrusion processing equipment through a front end drawing mechanism for pressing, and shaping and rolling the pressed film material to obtain the photovoltaic adhesive film product.
The S3 further comprises a thickness control method for extruding an outer film, a core layer and an inner film, and specifically comprises the steps of arranging a film thickness monitor near a film blowing nozzle of an extrusion port of the multilayer co-extrusion equipment, arranging a film blowing bypass and a high-pressure air pump at the film blowing nozzle, controlling the air equivalent of the film blowing nozzle by controlling the film blowing bypass and the high-pressure air pump in a follow-up mode after the film thickness monitor monitors the current film thickness, adjusting and controlling the air supply quantity or the extrusion quantity to adjust the film blowing thickness, and stopping the high-pressure air pump of the film blowing bypass after the original air path of the film blowing nozzle adjusts the corresponding film blowing air equivalent;
cooling and shaping the hot-pressed adhesive film product in S4, specifically, cooling the bottom of the polymer by using lower water cooling to wait for the temperature to be reduced to the crystallization temperature, and stopping pumping liquid by using a lower water cooling pump machine, wherein the traction speed of the laminated film in S4 is 5-8 m/min;
the cross-linking agent comprises one or more of tert-butyl peroxyisobutyrate, acrylic acid, hydroxyethyl acrylate, hydroxypropyl acrylate, methacrylic acid and hydroxyethyl methacrylate, and the tackifying assistant is an isocyanate silane coupling agent;
the first matrix raw material comprises the following components in parts by weight: 99% of EVA master batch, 0.1% of cross-linking agent, 0.1% of tackifying auxiliary agent and a certain amount of deionized water;
the second matrix raw material comprises the following components in parts by weight: 99% of POE master batch, 0.1% of cross-linking agent, 0.1% of tackifying auxiliary agent and a certain amount of deionized water;
the third matrix raw material comprises, by weight, 99% of polytetrafluoroethylene particles, 0.1% of a cross-linking agent, 0.1% of a tackifying assistant, 0.1% of a foaming agent, 2% of a modified filler and a certain amount of deionized water, wherein the modified filler is silicon dioxide and iron powder particles, and the particle size of the modified filler is less than 10 mu m
The photovoltaic adhesive films prepared by the raw material formulas in examples 1-3 and the commercially available EVA photovoltaic adhesive films are immersed in brine and fresh water for 1D and 7D in comparison ratio, weight change is carried out, the water absorption degree is judged by weighing, and meanwhile, the light transmittance and the adhesion peel strength of a glass plate are tested, and the obtained results are shown in the following table:
as can be seen from the above table, the example 2 of the present invention has better peel strength, light transmittance and water absorption strength in the same series of products and commercial EVA photovoltaic films, and is a preferred example of the present invention.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A POE material-based high-weather-resistance photovoltaic adhesive film preparation process is characterized by comprising the following steps:
s1, prefabricating raw materials, placing multiple master batches in the first matrix, the second matrix and the third matrix into a dryer for low-temperature drying for 20min, and removing moisture in the master batches of the matrixes;
s2, weighing raw materials, precisely weighing the processed raw materials of the first matrix, the second matrix and the third matrix according to the formula amount, and weighing the cross-linking agent, the tackifying assistant, the anti-aging assistant and a certain amount of water in the corresponding formula amounts of the first matrix, the second matrix and the third matrix;
s3, mixing and extruding, namely placing the weighed first substrate, second substrate and third substrate into a double-screw extruder of a multilayer co-extrusion device corresponding to an outer layer, an inner layer and a core layer respectively, heating the multilayer co-extrusion device to fully heat and melt the placed materials, waiting for the raw materials and auxiliary materials to be fully dissolved, fully stirring and mixing the melted materials by the extruder through the movement of double screws, and extruding, wherein the multilayer co-extrusion device blows out outer films, core layers and inner films corresponding to the substrates of the first substrate, the second substrate and the third substrate through a plurality of extrusion ports;
s4, hot pressing, namely extruding the mixture in a double-screw extruder of the multilayer co-extrusion equipment, blowing the outer film, the core layer and the inner film out through a film blowing nozzle, drawing the outer film, the core layer and the inner film to a compression roller of a hot pressing mechanism of the multilayer co-extrusion processing equipment through a front end drawing mechanism for pressing, and shaping and rolling the pressed film material to obtain the photovoltaic adhesive film product.
2. The preparation process of the POE material-based photovoltaic adhesive film with high weather resistance as claimed in claim 1, wherein S3 further comprises a thickness control method for extruding the outer film, the core layer and the inner film, and specifically comprises the steps of arranging a film thickness monitor near a film blowing nozzle at an extrusion port of the multilayer co-extrusion equipment, arranging a film blowing bypass and a high-pressure air pump at the film blowing nozzle, controlling the air equivalent of the film blowing nozzle by controlling the film blowing bypass and the high-pressure air pump in a follow-up manner after the film thickness monitor monitors the current film thickness, adjusting and controlling the air supply or the extrusion to adjust the film blowing thickness, and stopping the operation of the high-pressure air pump of the film blowing bypass after the corresponding air equivalent of the film blowing nozzle is adjusted by the original air path of the film blowing nozzle.
3. The preparation process of the POE material-based photovoltaic adhesive film with high weather resistance as claimed in claim 1, further comprising cooling and shaping the hot-pressed adhesive film product in S4, specifically comprising cooling the bottom of the polymer with water cooling, waiting for the temperature to be lowered to the crystallization temperature, and stopping the water cooling pump machine.
4. The preparation process of the POE material-based high-weather-resistance photovoltaic adhesive film as claimed in claim 1, wherein the pulling rate of the laminated film in S4 is 5-8 m/min.
5. The process of claim 1, wherein the crosslinking agent comprises one or more of tert-butyl peroxyisobutyrate, acrylic acid, hydroxyethyl acrylate, hydroxypropyl acrylate, methacrylic acid, and hydroxyethyl methacrylate.
6. The preparation process of the POE material-based high-weather-resistance photovoltaic adhesive film as claimed in claim 1, wherein the adhesion-promoting auxiliary agent is an isocyanatosilane coupling agent.
7. The preparation process of the POE material-based high-weather-resistance photovoltaic adhesive film as claimed in claim 1, wherein the first matrix raw material comprises the following components in parts by weight: 96-99% of EVA master batch, 0.1-2% of cross-linking agent, 0.1-2% of tackifying auxiliary agent and a certain amount of deionized water.
8. The preparation process of the POE material-based high-weather-resistance photovoltaic adhesive film as claimed in claim 1, wherein the second matrix raw material comprises the following components in parts by weight: 96-99% of POE master batch, 0.1-2% of cross-linking agent, 0.1-2% of tackifying auxiliary agent and a certain amount of deionized water.
9. The preparation process of the POE material-based high-weather-resistance photovoltaic adhesive film as claimed in claim 1, wherein the third matrix material comprises, by weight, 96-99% of polytetrafluoroethylene particles, 0.1-2% of a cross-linking agent, 0.1-2% of a tackifying assistant, 0.1-2% of a foaming agent, 2-4% of a modified filler and a certain amount of deionized water.
10. The preparation process of the POE material-based high-weather-resistance photovoltaic adhesive film as claimed in claim 9, wherein the modified filler is silica and iron powder particles, and the particle size of the modified filler is less than 10 μm.
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Denomination of invention: A weather resistant photovoltaic film preparation process based on POE materials Granted publication date: 20220715 Pledgee: Bank of Nanjing Limited by Share Ltd. Wuxi branch Pledgor: KUIDA HIGH-MOLECULAR MATERIAL TECHNOLOGY (YIXING) Co.,Ltd. Registration number: Y2024980008730 |