CN107177318A - A kind of photovoltaic EVA adhesive film and preparation method thereof - Google Patents

A kind of photovoltaic EVA adhesive film and preparation method thereof Download PDF

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Publication number
CN107177318A
CN107177318A CN201710425144.5A CN201710425144A CN107177318A CN 107177318 A CN107177318 A CN 107177318A CN 201710425144 A CN201710425144 A CN 201710425144A CN 107177318 A CN107177318 A CN 107177318A
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parts
adhesive film
eva adhesive
oxide
photovoltaic
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王磊
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Hefei Huagai Photovoltaic Technology Co Ltd
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Hefei Huagai Photovoltaic Technology Co Ltd
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    • 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
    • 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
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/04—Non-macromolecular additives inorganic
    • 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
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02—Non-macromolecular additives
    • C09J11/06—Non-macromolecular additives organic
    • 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
    • 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
    • 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
    • C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
    • C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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    • 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
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    • C08K2003/2206—Oxides; Hydroxides of metals of calcium, strontium or barium
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    • 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
    • C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
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    • 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
    • C08K2003/221—Oxides; Hydroxides of metals of rare earth metal
    • C08K2003/2213—Oxides; Hydroxides of metals of rare earth metal of cerium
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • 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
    • C08K2003/2262—Oxides; Hydroxides of metals of manganese
    • C—CHEMISTRY; METALLURGY
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    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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    • 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
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    • C08K2201/00—Specific properties of additives
    • C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08K3/34—Silicon-containing compounds
    • C08K3/346—Clay
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    • 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
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    • C08K3/36—Silica
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    • 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
    • C08K3/40—Glass
    • 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
    • C08K5/00—Use of organic ingredients
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    • C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
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    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/13—Phenols; Phenolates
    • C08K5/134—Phenols containing ester groups
    • C08K5/1345—Carboxylic esters of phenolcarboxylic acids
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    • C08K5/00—Use of organic ingredients
    • C08K5/49—Phosphorus-containing compounds
    • C08K5/51—Phosphorus bound to oxygen
    • C08K5/52—Phosphorus bound to oxygen only
    • C08K5/521—Esters of phosphoric acids, e.g. of H3PO4
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    • 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
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  • Power Engineering (AREA)
  • Adhesives Or Adhesive Processes (AREA)

Abstract

The invention discloses a kind of photovoltaic EVA adhesive film and preparation method thereof, it is related to EVA adhesive film technical field, includes the raw material of following parts by weight：40 ~ 90 parts of 80 ~ 90 parts of EVA, 20 ~ 30 parts of inorganic filler, 10 ~ 15 parts of UV-preventing nano material dispersion liquid, 10 ~ 15 parts of cullet iron praseodymium magnetic oxide composite powder, 2 ~ 10 parts of auxiliary agent and organic solvent.EVA adhesive film adhesion strength height that the present invention is prepared, good dispersion, stability are high, preparation method is simple, reduces cost, is with a wide range of applications in industrialized production, the photovoltaic EVA adhesive film of the present invention is packaged in photovoltaic module, temperature rise and the power loss of photovoltaic module can be effectively reduced.

Description

A kind of photovoltaic EVA adhesive film and preparation method thereof
Technical field
The present invention relates to EVA adhesive film technical field, and in particular to a kind of photovoltaic EVA adhesive film and preparation method thereof.
Background technology
Solar cell module encapsulation when, if directly by cell piece be exposed to air in, its opto-electronic conversion can quickly under Drop, loses practical value, it is therefore desirable to cell piece is packaged by EVA adhesive film.And the cell piece after encapsulating makes for a long time Used time, due to EVA adhesive film, inevitable ultraviolet degradation reaction can cause the generation of chromophore in itself, so that EVA exists Xanthochromia aging during long-term use, light transmittance reduction.The EVA produced according to existing collocation method and existing forming technique Glued membrane, processing temperature is low in battery unit package, solidifying lamination times length, efficiency, low, production cost is high, the EVA made The low defect of glued membrane adhesion strength.
The content of the invention
It is an object of the invention to provide a kind of photovoltaic EVA adhesive film and preparation method thereof, the EVA adhesive film adhesion strength prepared Height, good dispersion, stability are high, and preparation method is simple, reduces cost, is with a wide range of applications in industrialized production, The photovoltaic EVA adhesive film of the present invention is packaged in photovoltaic module, temperature rise and the power loss of photovoltaic module can be effectively reduced.
The invention provides following technical scheme：A kind of photovoltaic EVA adhesive film, includes the raw material of following parts by weight：EVA 80 ~ 90 parts, 20 ~ 30 parts of inorganic filler, 10 ~ 15 parts of UV-preventing nano material dispersion liquid, cullet iron praseodymium magnetic oxide 40 ~ 90 parts of 10 ~ 15 parts of composite powder, 2 ~ 10 parts of auxiliary agent and organic solvent；
The auxiliary agent includes the raw material of following parts by weight：1 ~ 3 part of peroxide cross-linking agent, 1 ~ 2 part of plasticizer, acid absorbent 1 ~ 2 0.2 ~ 0.4 part of part, 0.2 ~ 1.2 part of lubricant, 0.2 ~ 0.8 part of crosslinking and curing agent and antioxidant.
Preferably, the EVA be the numerical value that the content of vinylacetate is 25~38%, MI be 30g/10min ethene- The copolymer of vinyl acetate.
Preferably, the acid absorbent and the particle diameter of inorganic filler are 0.1~1 micron, and the inorganic filler includes following The raw material of parts by weight：Attapulgite modified 8 ~ 10 parts, 2 ~ 8 parts of modification infusorial earth, 2 ~ 6 parts of cenosphere, 1 ~ 4 part of talcum powder and carbon Sour 1 ~ 3 part of calcium.
Preferably, the cenosphere is one kind in hollow glass micropearl, hollow ceramic microspheres and hollow plastic microbead Or it is several.
Preferably, the attapulgite modified preparation method is：Attapulgite is taken, 100 ~ 120 mesh sieves were crushed, added Concentration is 1.5 ~ 2% sodium carbonate liquor, stirs and heats, and sodium acid carbonate and sodium hydrate particle are added in whipping process, plus The hot time be 2.5 ~ 3h, heating terminate simultaneously filter, dry after attapulgite is sent into calcining furnace, at 250 ~ 450 DEG C calcine 2 ~ Pulverizer crushing is put into after 2.5h, taking-up, 55 ~ 60 mesh sieves is crossed and is made.
Preferably, the preparation method of the modification infusorial earth is：Diatomite is taken out, 1 is calcined under 200 ~ 300 DEG C of high temperature After ~ 2h, room temperature is cooled to, 2 ~ 3 times of parts by weight is added and obtains clear water, be well mixed in backward mixed liquor and add acid solution, At 80 ~ 85 DEG C after 2 ~ 3h of stirring reaction, neutrality is washed with water to, is filtered, drying is made.
Preferably, the UV-preventing nano material dispersion liquid be UV-preventing nano material 20 ~ 30wt% disperse Liquid, the UV-preventing nano material is any of cerium oxide, iron oxide, yittrium oxide and tungsten oxide.
Preferably, the cullet iron praseodymium magnetic oxide composite powder presses weight by waste glass powder and iron praseodymium magnetic oxide Measure ratio 0.1 ~ 0.5：1 composition, the iron praseodymium magnetic oxide includes by weight：20 ~ 30 parts of manganese oxide, zinc oxide 10 ~ 15 2 ~ 8 parts of part, 2 ~ 10 parts of praseodymium oxide and calcium oxide, the waste glass powder are soda-lime-silica glass, quartz glass, high osmanthus oxygen glass, lead Any of silicate glass, alumina silicate glass and borosilicate glass.
Preferably, the peroxide cross-linking agent is tert-butyl hydroperoxide carbonic acid -2- ethylhexyls, and the plasticizer is phosphorus Sour three monooctyl esters, the acid absorbent is MgO, Mg (OH)2、Ca(OH)2Any of with hydrotalcite, the lubricant is tristearin One or more in acid, calcium stearate, zinc stearate, butyl stearate, stearmide, oleamide, the crosslinking and curing agent For peroxidized t-butyl perbenzoate, the antioxidant is β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid octadecanol ester, institute Organic solvent is stated for ethanol.
A kind of preparation method of photovoltaic EVA adhesive film is also provided in the present invention, comprised the following steps：
（1）, dispensing：EVA, inorganic filler, UV-preventing nano material dispersion liquid part, cullet iron praseodymium magnetic are weighed according to proportioning Property oxide composite material, auxiliary agent and organic solvent；
（2）, mixing：By the peroxide cross-linking agent in EVA and auxiliary agent, plasticizer, acid absorbent, lubricant, crosslinking and curing agent It is sufficiently mixed uniformly with antioxidant, obtains mixture A, surplus stock is sequentially added into mixture A, is sufficiently mixed and uniformly obtains Mixture B；
（3）, extrusion：By step（2）The mixture B of gained pours into mixing granulator in double-screw extruding pelletizing machine, twin-screw extrusion Machine is divided into three sections, i.e. entrance, interlude and outlet section, and its temperature is controlled as：81 DEG C, 93 DEG C, 88 DEG C；
（4）, film forming：Step（3）Particulate matter after middle granulation is to obtain the photovoltaic EVA adhesive film through film-forming system.
Beneficial effects of the present invention：EVA adhesive film adhesion strength height, good dispersion, the stability height, preparation method prepared Simply, cost is reduced, is with a wide range of applications in industrialized production, the photovoltaic EVA adhesive film of the present invention is packaged in light Component is lied prostrate, temperature rise and the power loss of photovoltaic module can be effectively reduced, it is specific as follows：
（1）, the cullet iron praseodymium magnetic oxide that adds in the present invention, the effect with strong attenuation electromagnetic energy has excellent Ultraviolet electromagnetic energy attenuation, is favorably improved anti-ultraviolet property；So that EVA adhesive film has relatively low ultraviolet cut-on wavelength, Increase the power output of component, improve the photoelectric conversion rate of battery pack；
（2）, the present invention in acid absorbent and inorganic filler particle diameter be 0.1~1 micron, because solar components will obtain high Generating efficiency, it is desirable to which light as many as possible must can be transmitted on silicon chip, thus solar cell sealing glued membrane the transparency very It is important, if particle diameter is more than 1 micron, the transparency of solar cell sealing glued membrane will be substantially reduced, influence battery component Generating efficiency, the larger acid absorbent of particle diameter can sour ability be weaker because inhaling in addition, the long-term use of influence battery component；If Particle diameter is less than 0.1 micron, exists because the problem of acid absorbent is assembled caused by inorganic particulate particle diameter is too small, causing can not be steady Fixed production；
（3）, add lubricant in the present invention, not only reduce compound melt in an extruder, in mixing process molten mass with Extruder screw, the frictional force on barrel surface；The mobility of molten mass can also be increased, reduce the frictional force suffered by macromolecular chain And shearing force, the generation of the internal stress of EVA adhesive film is controlled from beginning of production；
（4）, the present invention in add appropriate peroxide cross-linking agent, plasticizer, acid absorbent, lubricant, crosslinking and curing agent and Antioxidant can make that the good dispersion of the EVA adhesive film of solar cell package, cohesive be good, stability is high.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.These embodiments be merely to illustrate the present invention and without In limitation the scope of the present invention.
Embodiment 1
A kind of photovoltaic EVA adhesive film, includes the raw material of following parts by weight：
80 parts of EVA；
20 parts of inorganic filler；
10 parts of UV-preventing nano material dispersion liquid；
10 parts of cullet iron praseodymium magnetic oxide composite powder；
2 parts of auxiliary agent；
40 parts of organic solvent；
The auxiliary agent includes the raw material of following parts by weight：1 part of peroxide cross-linking agent, 1 part of plasticizer, 1 part of acid absorbent, lubrication 0.2 part of 0.2 part of agent, 0.2 part of crosslinking and curing agent and antioxidant.
Wherein, the EVA is the ethyl vinyl acetate second that the numerical value that the content of vinylacetate is 25%, MI is 30g/10min The copolymer of alkene.
Wherein, the acid absorbent and the particle diameter of inorganic filler are 0.1 micron, and the inorganic filler includes following parts by weight Raw material：1 part of attapulgite modified 8 parts, 2 parts of modification infusorial earth, 2 parts of cenosphere, 1 part of talcum powder and calcium carbonate.
Wherein, the cenosphere is hollow glass micropearl.
Wherein, the attapulgite modified preparation method is：Attapulgite is taken, 100 mesh sieves were crushed, adding concentration is 1.5% sodium carbonate liquor, is stirred and heats, and sodium acid carbonate and sodium hydrate particle are added in whipping process, and the heat time is 2.5h, heating terminates and filtered, and attapulgite is sent into calcining furnace after drying, is calcined at 250 DEG C and crushing is put into after 2h, taking-up Machine is crushed, and is crossed 55 mesh sieves and is made.
Wherein, the preparation method of the modification infusorial earth is：Diatomite is taken out, is calcined under 200 DEG C of high temperature after 1h, will It is cooled to room temperature, adds 2 times of parts by weight and obtains clear water, be well mixed in backward mixed liquor and add acid solution, is stirred at 80 DEG C React after 2h, be washed with water to neutrality, filter, drying is made.
Wherein, the UV-preventing nano material dispersion liquid is the 20wt% dispersion liquids of UV-preventing nano material, institute It is cerium oxide to state UV-preventing nano material.
Wherein, the cullet iron praseodymium magnetic oxide composite powder by waste glass powder and iron praseodymium magnetic oxide by weight Than 0.1：1 composition, the iron praseodymium magnetic oxide includes by weight：20 parts of manganese oxide, 10 parts of zinc oxide, 2 parts of praseodymium oxide With 2 parts of calcium oxide, the waste glass powder is soda-lime-silica glass.
Wherein, the peroxide cross-linking agent is tert-butyl hydroperoxide carbonic acid -2- ethylhexyls, and the plasticizer is phosphoric acid Three monooctyl esters, the acid absorbent is MgO, and the lubricant is stearic acid, and the crosslinking and curing agent is the tertiary fourth of perbenzoic acid Ester, the antioxidant is β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid octadecanol ester, and the organic solvent is ethanol.
A kind of preparation method of photovoltaic EVA adhesive film is also provided in the present embodiment, comprised the following steps：
（1）, dispensing：EVA, inorganic filler, UV-preventing nano material dispersion liquid part, cullet iron praseodymium magnetic are weighed according to proportioning Property oxide composite material, auxiliary agent and organic solvent；
（2）, mixing：By the peroxide cross-linking agent in EVA and auxiliary agent, plasticizer, acid absorbent, lubricant, crosslinking and curing agent It is sufficiently mixed uniformly with antioxidant, obtains mixture A, surplus stock is sequentially added into mixture A, is sufficiently mixed and uniformly obtains Mixture B；
（3）, extrusion：By step（2）The mixture B of gained pours into mixing granulator in double-screw extruding pelletizing machine, twin-screw extrusion Machine is divided into three sections, i.e. entrance, interlude and outlet section, and its temperature is controlled as：81 DEG C, 93 DEG C, 88 DEG C；
（4）, film forming：Step（3）Particulate matter after middle granulation is to obtain the photovoltaic EVA adhesive film through film-forming system.
Embodiment 2
A kind of photovoltaic EVA adhesive film, includes the raw material of following parts by weight：
90 parts of EVA；
30 parts of inorganic filler；
15 parts of UV-preventing nano material dispersion liquid；
15 parts of cullet iron praseodymium magnetic oxide composite powder；
10 parts of auxiliary agent；
90 parts of organic solvent；
The auxiliary agent includes the raw material of following parts by weight：3 parts of peroxide cross-linking agent, 2 parts of plasticizer, 2 parts of acid absorbent, lubrication 0.4 part of 1.2 parts of agent, 0.8 part of crosslinking and curing agent and antioxidant.
Wherein, the EVA is the ethyl vinyl acetate second that the numerical value that the content of vinylacetate is 38%, MI is 30g/10min The copolymer of alkene.
Wherein, the acid absorbent and the particle diameter of inorganic filler are 1 micron, and the inorganic filler includes following parts by weight Raw material：3 parts of attapulgite modified 10 parts, 8 parts of modification infusorial earth, 6 parts of cenosphere, 4 parts of talcum powder and calcium carbonate.
Wherein, the cenosphere is hollow ceramic microspheres.
Wherein, the attapulgite modified preparation method is：Attapulgite is taken, 120 mesh sieves were crushed, adding concentration is 2% sodium carbonate liquor, is stirred and heats, and sodium acid carbonate and sodium hydrate particle are added in whipping process, and the heat time is 3h, heating terminates and filtered, and attapulgite is sent into calcining furnace after drying, is calcined at 450 DEG C and crushing is put into after 2.5h, taking-up Machine is crushed, and is crossed 60 mesh sieves and is made.
Wherein, the preparation method of the modification infusorial earth is：Diatomite is taken out, is calcined under 300 DEG C of high temperature after 2h, will It is cooled to room temperature, plus 3 times of parts by weight obtain clear water, is well mixed in backward mixed liquor and adds acid solution, stirs anti-at 85 DEG C Answer after 3h, be washed with water to neutrality, filter, drying is made.
Wherein, the UV-preventing nano material dispersion liquid is the 30wt% dispersion liquids of UV-preventing nano material, institute It is iron oxide to state UV-preventing nano material.
Wherein, the cullet iron praseodymium magnetic oxide composite powder by waste glass powder and iron praseodymium magnetic oxide by weight Than 0.5：1 composition, the iron praseodymium magnetic oxide includes by weight：30 parts of manganese oxide, 15 parts of zinc oxide, 10 parts of praseodymium oxide With 8 parts of calcium oxide, the waste glass powder is quartz glass.
Wherein, the peroxide cross-linking agent is tert-butyl hydroperoxide carbonic acid -2- ethylhexyls, and the plasticizer is phosphoric acid Three monooctyl esters, the acid absorbent is Mg (OH)2, the lubricant is calcium stearate, and the crosslinking and curing agent is benzoyl peroxide first Tert-butyl acrylate, the antioxidant is β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid octadecanol ester, and the organic solvent is Ethanol.
Embodiment 3
A kind of photovoltaic EVA adhesive film, includes the raw material of following parts by weight：
85 parts of EVA；
25 parts of inorganic filler；
12.5 parts of UV-preventing nano material dispersion liquid；
12.5 parts of cullet iron praseodymium magnetic oxide composite powder；
6 parts of auxiliary agent；
65 parts of organic solvent；
The auxiliary agent includes the raw material of following parts by weight：2 parts of peroxide cross-linking agent, 1.5 parts of plasticizer, 1.5 parts of acid absorbent, 0.3 part of 0.8 part of lubricant, 0.58 part of crosslinking and curing agent and antioxidant.
Wherein, the EVA is the ethyl vinyl acetate second that the numerical value that the content of vinylacetate is 32%, MI is 30g/10min The copolymer of alkene.
Wherein, the acid absorbent and the particle diameter of inorganic filler are 0.5 micron, and the inorganic filler includes following parts by weight Raw material：2 parts of attapulgite modified 9 parts, 5 parts of modification infusorial earth, 4 parts of cenosphere, 2 parts of talcum powder and calcium carbonate.
Wherein, the cenosphere is hollow ceramic microspheres.
Wherein, the attapulgite modified preparation method is：Attapulgite is taken, 110 mesh sieves were crushed, adding concentration is 1.7% sodium carbonate liquor, is stirred and heats, and sodium acid carbonate and sodium hydrate particle are added in whipping process, and the heat time is 3h, heating terminates and filtered, and attapulgite is sent into calcining furnace after drying, pulverizer is put into after 2h, taking-up are calcined at 300 DEG C Crush, cross 57 mesh sieves and be made.
Wherein, the preparation method of the modification infusorial earth is：Diatomite is taken out, is calcined under 250 DEG C of high temperature after 1.5h, Room temperature is cooled to, 2 times of parts by weight is added and obtains clear water, be well mixed in backward mixed liquor and add acid solution, stirred at 82 DEG C Mix after reaction 2.5h, be washed with water to neutrality, filter, drying is made.
Wherein, the UV-preventing nano material dispersion liquid is the 25wt% dispersion liquids of UV-preventing nano material, institute It is iron oxide to state UV-preventing nano material.
Wherein, the cullet iron praseodymium magnetic oxide composite powder by waste glass powder and iron praseodymium magnetic oxide by weight Than 0.3：1 composition, the iron praseodymium magnetic oxide includes by weight：25 parts of manganese oxide, 12.5 parts of zinc oxide, praseodymium oxide 6 5 parts of part and calcium oxide, the waste glass powder are high osmanthus oxygen glass.
Wherein, the peroxide cross-linking agent is tert-butyl hydroperoxide carbonic acid -2- ethylhexyls, and the plasticizer is phosphoric acid Three monooctyl esters, the acid absorbent is Ca (OH)2, the lubricant is butyl stearate, and the crosslinking and curing agent is benzoyl peroxide T-butyl formate, the antioxidant is β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid octadecanol ester, the organic solvent For ethanol.
A kind of preparation method of photovoltaic EVA adhesive film is also provided in the present embodiment, comprised the following steps：
（1）, dispensing：EVA, inorganic filler, UV-preventing nano material dispersion liquid part, cullet iron praseodymium magnetic are weighed according to proportioning Property oxide composite material, auxiliary agent and organic solvent；
（2）, mixing：By the peroxide cross-linking agent in EVA and auxiliary agent, plasticizer, acid absorbent, lubricant, crosslinking and curing agent It is sufficiently mixed uniformly with antioxidant, obtains mixture A, surplus stock is sequentially added into mixture A, is sufficiently mixed and uniformly obtains Mixture B；
（3）, extrusion：By step（2）The mixture B of gained pours into mixing granulator in double-screw extruding pelletizing machine, twin-screw extrusion Machine is divided into three sections, i.e. entrance, interlude and outlet section, and its temperature is controlled as：81 DEG C, 93 DEG C, 88 DEG C；
（4）, film forming：Step（3）Particulate matter after middle granulation is to obtain the photovoltaic EVA adhesive film through film-forming system.
The present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, its according to The technical scheme described in foregoing embodiments can so be modified, or which part technical characteristic is equally replaced Change.Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., should be included in the present invention Protection domain within.

Claims (10)

1. a kind of photovoltaic EVA adhesive film, it is characterised in that include the raw material of following parts by weight：80 ~ 90 parts of EVA, inorganic filler 20 ~ 30 parts, 10 ~ 15 parts of UV-preventing nano material dispersion liquid, 10 ~ 15 parts of cullet iron praseodymium magnetic oxide composite powder, auxiliary agent 2 ~ 10 parts and 40 ~ 90 parts of organic solvent；
The auxiliary agent includes the raw material of following parts by weight：1 ~ 3 part of peroxide cross-linking agent, 1 ~ 2 part of plasticizer, acid absorbent 1 ~ 2 0.2 ~ 0.4 part of part, 0.2 ~ 1.2 part of lubricant, 0.2 ~ 0.8 part of crosslinking and curing agent and antioxidant.
2. photovoltaic EVA adhesive film according to claim 1, it is characterised in that the EVA is that the content of vinylacetate is 25 ~38%, MI numerical value is the copolymer of 30g/10min ethene-vinyl acetate.
3. photovoltaic EVA adhesive film according to claim 1, it is characterised in that the acid absorbent and the particle diameter of inorganic filler For 0.1~1 micron, the inorganic filler includes the raw material of following parts by weight：Attapulgite modified 8 ~ 10 parts, modification infusorial earth 2 ~ 1 ~ 3 part of 8 parts, 2 ~ 6 parts of cenosphere, 1 ~ 4 part of talcum powder and calcium carbonate.
4. photovoltaic EVA adhesive film according to claim 3, it is characterised in that the cenosphere is hollow glass micropearl, sky One or more in heart ceramic fine bead and hollow plastic microbead.
5. photovoltaic EVA adhesive film according to claim 3, it is characterised in that the attapulgite modified preparation method is： Attapulgite is taken, 100 ~ 120 mesh sieves were crushed, the sodium carbonate liquor that concentration is 1.5 ~ 2% is added, stirs and heat, stirred Sodium acid carbonate and sodium hydrate particle are added in journey, the heat time is 2.5 ~ 3h, and heating terminates and filtered, by concave convex rod after drying Soil feeding calcining furnace, calcines 2 ~ 2.5h at 250 ~ 450 DEG C, and pulverizer crushing is put into after taking-up, crosses 55 ~ 60 mesh sieves and is made.
6. photovoltaic EVA adhesive film according to claim 3, it is characterised in that the preparation method of the modification infusorial earth is：Will Diatomite takes out, and is calcined under 200 ~ 300 DEG C of high temperature after 1 ~ 2h, is cooled to room temperature, adds 2 ~ 3 times of parts by weight and obtains clear water, It is well mixed in backward mixed liquor and adds acid solution, at 80 ~ 85 DEG C after 2 ~ 3h of stirring reaction, be washed with water to neutrality, filters, Drying is made.
7. photovoltaic EVA adhesive film according to claim 1, it is characterised in that the UV-preventing nano material dispersion liquid It is 20 ~ 30wt% dispersion liquids of UV-preventing nano material, the UV-preventing nano material is cerium oxide, iron oxide, oxygen Change any of yttrium and tungsten oxide.
8. photovoltaic EVA adhesive film according to claim 1, it is characterised in that the cullet iron praseodymium magnetic oxide is combined Powder is by waste glass powder and iron praseodymium magnetic oxide by weight 0.1 ~ 0.5：1 composition, the iron praseodymium magnetic oxide is by weight Part meter includes：2 ~ 8 parts of 20 ~ 30 parts of manganese oxide, 10 ~ 15 parts of zinc oxide, 2 ~ 10 parts of praseodymium oxide and calcium oxide, the waste glass powder is Appointing in soda-lime-silica glass, quartz glass, high osmanthus oxygen glass, lead silicate glass, alumina silicate glass and borosilicate glass It is a kind of.
9. photovoltaic EVA adhesive film according to claim 1, it is characterised in that the peroxide cross-linking agent is tert-butyl group mistake Carbonic acid -2- ethylhexyls are aoxidized, the plasticizer is trioctyl phosphate, and the acid absorbent is MgO, Mg (OH)2、Ca(OH)2With Any of hydrotalcite, the lubricant is stearic acid, calcium stearate, zinc stearate, butyl stearate, stearmide, oil One or more in acid amides, the crosslinking and curing agent is peroxidized t-butyl perbenzoate, and the antioxidant is β-(3,5- bis- uncles Butyl -4- hydroxy phenyls) propionic acid octadecanol ester, the organic solvent is ethanol.
10. a kind of preparation method of photovoltaic EVA adhesive film according to any one of claim 1 ~ 9, it is characterised in that including with Lower step：
（1）, dispensing：EVA, inorganic filler, UV-preventing nano material dispersion liquid part, cullet iron praseodymium magnetic are weighed according to proportioning Property oxide composite material, auxiliary agent and organic solvent；
（2）, mixing：By the peroxide cross-linking agent in EVA and auxiliary agent, plasticizer, acid absorbent, lubricant, crosslinking and curing agent It is sufficiently mixed uniformly with antioxidant, obtains mixture A, surplus stock is sequentially added into mixture A, is sufficiently mixed and uniformly obtains Mixture B；
（3）, extrusion：By step（2）The mixture B of gained pours into mixing granulator in double-screw extruding pelletizing machine, twin-screw extrusion Machine is divided into three sections, i.e. entrance, interlude and outlet section, and its temperature is controlled as：81 DEG C, 93 DEG C, 88 DEG C；
（4）, film forming：Step（3）Particulate matter after middle granulation is to obtain the photovoltaic EVA adhesive film through film-forming system.
CN201710425144.5A 2017-06-08 2017-06-08 A kind of photovoltaic EVA adhesive film and preparation method thereof Withdrawn CN107177318A (en)

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WO2021017217A1 (en) * 2019-07-29 2021-02-04 南京唐壹信息科技有限公司 High-performance protective film for back surface of photovoltaic assembly and preparation method therefor
CN112358820A (en) * 2020-11-09 2021-02-12 福斯特(滁州)新材料有限公司 Packaging adhesive film with strong adhesive force with battery piece, composition for forming packaging adhesive film and application of packaging adhesive film

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CN102250554A (en) * 2011-05-23 2011-11-23 乐凯胶片股份有限公司 Sealing adhesive film for solar cell
CN102604449A (en) * 2012-02-16 2012-07-25 深圳市绿光纳米材料技术有限公司 Transparent heat-protecting glass paint
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CN108192530A (en) * 2017-12-26 2018-06-22 上海邦中高分子材料有限公司 A kind of improvement EVA/Fe3O4The method of magnetic hot melt adhesive interface compatibility
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CN112358820A (en) * 2020-11-09 2021-02-12 福斯特(滁州)新材料有限公司 Packaging adhesive film with strong adhesive force with battery piece, composition for forming packaging adhesive film and application of packaging adhesive film
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Application publication date: 20170919