CN115595090B - EVA material, packaging adhesive film, preparation method and application thereof - Google Patents
EVA material, packaging adhesive film, preparation method and application thereof Download PDFInfo
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- CN115595090B CN115595090B CN202211338866.4A CN202211338866A CN115595090B CN 115595090 B CN115595090 B CN 115595090B CN 202211338866 A CN202211338866 A CN 202211338866A CN 115595090 B CN115595090 B CN 115595090B
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- resin
- eva material
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- 239000000463 material Substances 0.000 title claims abstract description 148
- 239000002313 adhesive film Substances 0.000 title claims abstract description 45
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 229920005989 resin Polymers 0.000 claims abstract description 163
- 239000011347 resin Substances 0.000 claims abstract description 163
- 239000011159 matrix material Substances 0.000 claims abstract description 49
- 239000003463 adsorbent Substances 0.000 claims abstract description 38
- 239000002270 dispersing agent Substances 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 7
- 230000000655 anti-hydrolysis Effects 0.000 claims abstract description 6
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 242
- XLDBGFGREOMWSL-UHFFFAOYSA-N n,n'-bis[2,6-di(propan-2-yl)phenyl]methanediimine Chemical group CC(C)C1=CC=CC(C(C)C)=C1N=C=NC1=C(C(C)C)C=CC=C1C(C)C XLDBGFGREOMWSL-UHFFFAOYSA-N 0.000 claims description 34
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 28
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 claims description 28
- 239000000347 magnesium hydroxide Substances 0.000 claims description 28
- 229910001862 magnesium hydroxide Inorganic materials 0.000 claims description 28
- -1 2-ethylhexyl Chemical group 0.000 claims description 27
- 239000002994 raw material Substances 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 23
- 239000000155 melt Substances 0.000 claims description 21
- 239000002245 particle Substances 0.000 claims description 21
- 150000002500 ions Chemical class 0.000 claims description 20
- 230000007062 hydrolysis Effects 0.000 claims description 19
- 238000006460 hydrolysis reaction Methods 0.000 claims description 19
- 229910000166 zirconium phosphate Inorganic materials 0.000 claims description 17
- LEHFSLREWWMLPU-UHFFFAOYSA-B zirconium(4+);tetraphosphate Chemical compound [Zr+4].[Zr+4].[Zr+4].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LEHFSLREWWMLPU-UHFFFAOYSA-B 0.000 claims description 17
- 239000003112 inhibitor Substances 0.000 claims description 16
- 150000001718 carbodiimides Chemical group 0.000 claims description 13
- 239000007822 coupling agent Substances 0.000 claims description 11
- 150000001450 anions Chemical class 0.000 claims description 7
- 150000001768 cations Chemical class 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 7
- KDGNCLDCOVTOCS-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy propan-2-yl carbonate Chemical compound CC(C)OC(=O)OOC(C)(C)C KDGNCLDCOVTOCS-UHFFFAOYSA-N 0.000 claims description 6
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims description 4
- 125000000129 anionic group Chemical group 0.000 claims description 4
- 239000003431 cross linking reagent Substances 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 claims description 4
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 4
- 229910052797 bismuth Inorganic materials 0.000 claims description 3
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims description 3
- 125000002091 cationic group Chemical group 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- MYOQALXKVOJACM-UHFFFAOYSA-N (2-methylpropan-2-yl)oxy pentaneperoxoate Chemical compound CCCCC(=O)OOOC(C)(C)C MYOQALXKVOJACM-UHFFFAOYSA-N 0.000 claims description 2
- AGKBXKFWMQLFGZ-UHFFFAOYSA-N (4-methylbenzoyl) 4-methylbenzenecarboperoxoate Chemical compound C1=CC(C)=CC=C1C(=O)OOC(=O)C1=CC=C(C)C=C1 AGKBXKFWMQLFGZ-UHFFFAOYSA-N 0.000 claims description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- GTELLNMUWNJXMQ-UHFFFAOYSA-N 2-ethyl-2-(hydroxymethyl)propane-1,3-diol;prop-2-enoic acid Chemical class OC(=O)C=C.OC(=O)C=C.OC(=O)C=C.CCC(CO)(CO)CO GTELLNMUWNJXMQ-UHFFFAOYSA-N 0.000 claims description 2
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 2
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 claims description 2
- HVVWZTWDBSEWIH-UHFFFAOYSA-N [2-(hydroxymethyl)-3-prop-2-enoyloxy-2-(prop-2-enoyloxymethyl)propyl] prop-2-enoate Chemical compound C=CC(=O)OCC(CO)(COC(=O)C=C)COC(=O)C=C HVVWZTWDBSEWIH-UHFFFAOYSA-N 0.000 claims description 2
- YKTSYUJCYHOUJP-UHFFFAOYSA-N [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] Chemical compound [O--].[Al+3].[Al+3].[O-][Si]([O-])([O-])[O-] YKTSYUJCYHOUJP-UHFFFAOYSA-N 0.000 claims description 2
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 2
- 229920001577 copolymer Polymers 0.000 claims description 2
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 claims description 2
- 229920006226 ethylene-acrylic acid Polymers 0.000 claims description 2
- VOZRXNHHFUQHIL-UHFFFAOYSA-N glycidyl methacrylate Chemical compound CC(=C)C(=O)OCC1CO1 VOZRXNHHFUQHIL-UHFFFAOYSA-N 0.000 claims description 2
- 229960001545 hydrotalcite Drugs 0.000 claims description 2
- 229910001701 hydrotalcite Inorganic materials 0.000 claims description 2
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000391 magnesium silicate Substances 0.000 claims description 2
- 229910052919 magnesium silicate Inorganic materials 0.000 claims description 2
- 235000019792 magnesium silicate Nutrition 0.000 claims description 2
- YDKNBNOOCSNPNS-UHFFFAOYSA-N methyl 1,3-benzoxazole-2-carboxylate Chemical compound C1=CC=C2OC(C(=O)OC)=NC2=C1 YDKNBNOOCSNPNS-UHFFFAOYSA-N 0.000 claims description 2
- 239000000178 monomer Substances 0.000 claims description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 claims description 2
- GSECCTDWEGTEBD-UHFFFAOYSA-N tert-butylperoxycyclohexane Chemical compound CC(C)(C)OOC1CCCCC1 GSECCTDWEGTEBD-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- 238000006116 polymerization reaction Methods 0.000 claims 1
- 238000002834 transmittance Methods 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 239000005022 packaging material Substances 0.000 abstract description 5
- 230000004069 differentiation Effects 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 168
- 238000002156 mixing Methods 0.000 description 16
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 241000276425 Xiphophorus maculatus Species 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 229920006163 vinyl copolymer Polymers 0.000 description 2
- WPMYUUITDBHVQZ-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoic acid Chemical compound CC(C)(C)C1=CC(CCC(O)=O)=CC(C(C)(C)C)=C1O WPMYUUITDBHVQZ-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 150000007945 N-acyl ureas Chemical class 0.000 description 1
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 150000001622 bismuth compounds Chemical class 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- UHZVBFGPKDZMLV-UHFFFAOYSA-N n-butyl-n'-phenylmethanediimine Chemical compound CCCCN=C=NC1=CC=CC=C1 UHZVBFGPKDZMLV-UHFFFAOYSA-N 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Classifications
-
- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- 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
- C09J7/10—Adhesives in the form of films or foils without carriers
-
- 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
-
- 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
- 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
- C08K2003/2224—Magnesium hydroxide
-
- 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
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/328—Phosphates of heavy metals
-
- 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
- C08L2203/206—Applications use in electrical or conductive gadgets use in coating or encapsulating of electronic parts
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses an EVA material, a packaging adhesive film, and a preparation method and application thereof. The EVA material comprises the following components in parts by weight based on 100 parts by weight: 60-80 parts of a resin matrix, wherein the resin matrix comprises EVA resin; 3-18 parts of ion adsorbent; 3-18 parts of an anti-hydrolysis agent; 1-5 parts of dispersing agent. The EVA material is used in the packaging material, so that the light transmittance of the EVA material can be kept, the water vapor transmittance can be reduced, and the power attenuation rate of PID (proportion integration differentiation) can be reduced.
Description
Technical Field
The invention relates to an EVA material, a packaging adhesive film, and a preparation method and application thereof.
Background
Photovoltaic PID, potential induced decay, generally refers to the phenomenon of a decrease in power output of a battery assembly.
Chinese patent No. CN 108034372A discloses a method for preparing EVA film of photovoltaic packaging material for resisting potential induced attenuation. According to the preparation method, the content of acetic acid is reduced by reducing the content of VA in EVA, and meanwhile, the melting temperature of EVA resin is increased, so that the sodium ion migration capability is weakened; in addition, the EVA adhesive film is also added with a complex for absorbing sodium ions and high-melting-point polyethylene or vinyl copolymer, so that the PID resistance of EVA is enhanced. However, reducing the VA content of EVA reduces EVA transparency to some extent and free acetate also acts as a conductive ion to accelerate corrosion of the cell. In addition, the addition of high melting point polyethylene or vinyl copolymer to EVA requires consideration of compatibility issues of both.
Chinese patent No. CN 110093112A discloses a corrosion-resistant EVA film as a photovoltaic packaging material and its preparation method. According to the patent, the modified anti-corrosion auxiliary agent is added into the EVA adhesive film to adsorb acetic acid, so that the service life of the battery is prolonged. However, the EVA adhesive film has general water vapor barrier capability and is easy to hydrolyze to generate more acetic acid.
Chinese patent CN113234402a (hereinafter referred to as D1) discloses a high-resistance PID composite packaging adhesive film and a preparation method thereof, wherein POE resin is mixed into EVA resin, and PID auxiliary agents such as zirconium phosphate and monocarbodiimide are added, so that the power attenuation rate of the adhesive film is kept within 3%.
From the above, in the prior art, in order to reduce the attenuation rate of PID, other polymers are generally selected to replace EVA resin, (1) the raw material cost is increased, or the price cost for solving the compatibility of the two is increased; (2) which can affect the uniformity of the final product. At present, the technical problem is still to be solved.
Disclosure of Invention
In order to solve the problems of power reduction, service life reduction and the like of a packaging component containing a large amount of EVA resin (ethylene-vinyl acetate copolymer) in the prior art, an EVA material, a packaging adhesive film, a preparation method and application thereof are provided. The adhesive film prepared from the EVA material can keep better light transmittance, has better water vapor transmittance, and has lower PID power attenuation rate, so that the service life of the battery is prolonged.
The invention provides an EVA material, which comprises the following components in parts by weight based on 100 parts by weight:
60-80 parts of a resin matrix, wherein the resin matrix comprises EVA resin;
3-18 parts of ion adsorbent;
3-18 parts of an anti-hydrolysis agent;
1-5 parts of dispersing agent.
In the present invention, the resin matrix is preferably used in an amount of 68 to 80 parts, more preferably 68 or 80 parts.
In the present invention, the resin matrix is preferably an EVA resin.
In the invention, the resin matrix can also comprise POE resin; preferably, when the resin matrix further comprises a POE resin, the ratio of the POE resin to the EVA resin is 1 (0.1 to 10), for example 1:1, by mass.
In the present invention, preferably, the mass content of VA in the EVA resin is 20 to 30%, more preferably 20% or 28%, and the percentage is the percentage of the mass of VA to the total mass of the EVA resin; wherein, VA is vinyl acetate.
In the present invention, the EVA may have a number average molecular weight as conventional in the art, preferably 1500 to 4000, more preferably 2000; generally, the number average molecular weight of EVA is reasonably selected according to the product to be prepared.
In the present invention, the EVA resin preferably has a melt index of 20 to 25g/10min, more preferably 25g/10min.
In the present invention, the EVA resin may be V2825 of the ston chemistry.
In the present invention, the ratio of the mass fraction of the ion adsorbent to the hydrolysis inhibitor is preferably 1 (0.2-5), for example 1:0.5, 1:1, 1:1.5 or 1:2, more preferably 1:1.
In the present invention, the amount of the ion adsorbent is preferably 3 to 15 parts, more preferably 3, 9 or 15 parts.
In the present invention, preferably, the ion adsorbent includes a cation adsorbent, an anion adsorbent and an anion adsorbent.
Wherein, preferably, the cation adsorbent comprises one or more of zirconium phosphate, magnesium silicate and aluminum silicate, and more preferably, flaky zirconium phosphate.
Wherein preferably the anionic adsorbent comprises hydrotalcite and/or magnesium hydroxide, more preferably magnesium hydroxide.
Wherein the cation-anion adsorbent is preferably a bismuth-containing compound, more preferably Bi (OH) x (NO 3 ) y ·nH 2 O, 2.5<x<3，0<y<0.5，x+y＝3。
In the present invention, the ion adsorbent may further include aluminum hydroxide.
In the present invention, the amount of the hydrolysis inhibitor is preferably 3 to 15 parts, more preferably 3, 9 or 15 parts.
In the present invention, the hydrolysis inhibitor is preferably a carbodiimide-based hydrolysis inhibitor, more preferably a monomeric carbodiimide and/or a polymeric carbodiimide.
Wherein the monomeric carbodiimide can be an anti-hydrolysis agent commercially available from Shanghai Lang Yi functional materials Co., ltd, model 1010; wherein the polymeric carbodiimide may be an anti-hydrolysis agent commercially available from Shanghai Langmuir functional materials Co., ltd, model number 210 or 213; the polymerized monomer of the polymerized carbodiimide may be 1-phenyl-3-butylcarbodiimide with a CAS number of 21848-95-3.
Wherein, preferably, the hydrolysis inhibitor is N, N' -bis (2, 6-diisopropylphenyl) carbodiimide.
In the present invention, the dispersant is preferably used in an amount of 2 to 10 parts, more preferably 2 parts.
In the present invention, preferably, the dispersant includes a silane coupling agent and/or a phthalate coupling agent.
In the present invention, preferably, the EVA material further includes a compatibilizer and/or a cross-linking agent.
Wherein, preferably, the compatilizer is one or more of acrylic acid, acrylamide, methyl methacrylate, ethylene-acrylic acid (2-ethylhexyl) copolymer and glycidyl methacrylate.
Wherein, preferably, the cross-linking agent is one or more of di (4-methylbenzoyl) peroxide, 1 '-di (tert-butyl peroxy) cyclohexane, butyl-4, 4' -di (tert-butyl peroxy) valerate, propoxylated neopentyl glycol diacrylate, pentaerythritol triacrylate, trimethylolpropane triacrylate and ethoxylated trimethylolpropane triacrylate.
In a preferred embodiment, the EVA material comprises the following components in total weight of 100 parts: 80 parts of EVA resin, wherein the mass content of VA in the EVA resin is 28%; 9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 9 parts of magnesium hydroxide; and 2 parts of silane coupling agent.
In a preferred embodiment, the EVA material comprises the following components in total weight of 100 parts: 80 parts of EVA resin, wherein the mass content of VA in the EVA resin is 28%; 9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 9 parts of flaky zirconium phosphate; and 2 parts of silane coupling agent.
In a preferred embodiment, the EVA material comprises the following components in total weight of 100 parts: 80 parts of EVA resin, wherein the mass content of VA in the EVA resin is 28%; 15 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 3 parts of magnesium hydroxide; and 2 parts of silane coupling agent.
In a preferred embodiment, the EVA material comprises the following components in total weight of 100 parts: 80 parts of EVA resin, wherein the VA content is 28%; 3 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 15 parts of magnesium hydroxide; and 2 parts of silane coupling agent.
In a preferred embodiment, the EVA material comprises the following components in total weight of 100 parts: 68 parts of EVA resin, and the VA content is 28%; 15 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 15 parts of magnesium hydroxide; 2 parts of phthalate ester coupling agent.
In a preferred embodiment, the EVA material comprises the following components in total weight of 100 parts: 68 parts of EVA resin, and the VA content is 28%; 15 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 15 parts of flaky zirconium phosphate; and 2 parts of silane coupling agent.
In a preferred embodiment, the EVA material comprises the following components in total weight of 100 parts: 80 parts of EVA resin, wherein the VA content is 28%; 9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; bi (OH) x (NO 3 ) y ·nH 2 O(2.5<x<3，0<y<0.5, x+y=3) 9 parts; and 2 parts of silane coupling agent.
In a preferred embodiment, the EVA material comprises the following components in total weight of 100 parts: 80 parts of EVA resin, wherein the VA content is 28%; 9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 4.5 parts of magnesium hydroxide; 4.5 parts of flaky zirconium phosphate; and 2 parts of silane coupling agent.
In a preferred embodiment, the EVA material comprises the following components in total weight of 100 parts: 80 parts of EVA resin, wherein the VA content is 20%; 9 parts of polymerized carbodiimide; 9 parts of magnesium hydroxide; 2 parts of phthalate ester coupling agent.
In a preferred embodiment, the EVA material comprises the following components in total weight of 100 parts: 80 parts of EVA resin, wherein the resin matrix comprises 40 parts of EVA resin, the VA content is 20%, and 40 parts of POE resin; 9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 9 parts of magnesium hydroxide; 2 parts of phthalate ester coupling agent.
In the invention, the addition of the hydrolysis inhibitor and the ion adsorbent can generate a synergistic effect to change carboxyl into stable ureide, and capture ions generated by acetic acid corroding glass, thereby greatly slowing down EVA degradation speed.
The invention also provides a preparation method of the EVA material, which comprises the following steps: extruding and granulating the raw material mixture of the EVA material.
In the present invention, the extrusion may be performed in an extruder conventional in the art.
The temperature of the extruder head may be generally 90 to 140 ℃, preferably 90 ℃ or 140 ℃.
Wherein the melt pressure of the extruder may typically be 2.75MPa.
The screw speed of the extruder may be generally 200-290 r/min, preferably 250r/min.
In the present invention, preferably, the D50 particle size of the EVA material after dicing is 3 to 5mm.
The invention also provides an EVA material which is prepared by the preparation method.
The invention also provides a packaging adhesive film which comprises the EVA material.
In the packaging adhesive film, the content of the EVA material is more than or equal to 2%, more preferably 2-100%, for example 2-10%, and the percentage is the percentage of the mass of the EVA material to the total mass of the packaging adhesive film.
In the present invention, preferably, the packaging adhesive film further comprises an ester compound; more preferably, the ester compound is tert-butyl peroxyisopropyl carbonate and/or pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ]; more preferably, the content of the ester compound is 0.5-2%, and the percentage is the percentage of the ester compound in the total mass of the packaging adhesive film.
Wherein, the CAS number of the tert-butyl peroxyisopropyl carbonate is 2372-21-6.
Wherein the CAS number of pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] is 229-722-6.
In the present invention, the packaging adhesive film may further include a resin substrate, which may have a meaning conventionally understood in the art, and which can be applied to the preparation of the packaging adhesive film; preferably, the resin substrate comprises EVA resin; preferably, the content of the resin substrate is less than or equal to 97%, more preferably 94-97%, and the percentage is the percentage of the resin substrate to the total mass of the packaging adhesive film.
In the present invention, preferably, the EVA material has a D50 particle size of 3 to 5mm. D50 is the median particle size conventional in the art.
In a preferred embodiment, the EVA material is used in an amount of 2 parts; the dosage of the resin matrix is 97 parts; the dosage of the tert-butyl peroxyisopropyl carbonate is 0.5 part; the dosage of the tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol ester is 0.5 part.
In the invention, the packaging adhesive film can be obtained by a conventional preparation method in the field, and the preparation method sequentially comprises the following steps: mixing, melt extrusion, casting film forming, cooling, slitting and rolling.
Wherein the mixed materials may include: EVA material, ester compound and resin substrate.
The invention also provides application of the EVA material in a photovoltaic double-glass assembly packaging adhesive film. The service life of the solar cell can be greatly prolonged.
On the basis of conforming to the common knowledge in the field, the above preferred conditions can be arbitrarily combined to obtain the preferred examples of the invention.
The reagents and materials used in the present invention are commercially available.
The invention has the positive progress effects that:
the EVA material is used in the packaging material, so that the light transmittance of the EVA material can be kept, the water vapor transmittance and the power attenuation rate of PID (proportion integration differentiation) can be reduced, and the service life of the battery is prolonged.
Detailed Description
The invention is further illustrated by means of the following examples, which are not intended to limit the scope of the invention. The experimental methods, in which specific conditions are not noted in the following examples, were selected according to conventional methods and conditions, or according to the commercial specifications.
The EVA resin used in the examples below was V2825 of the Stomb chemistry and had a melt index of 25g/10min.
The monomeric carbodiimide used in the following examples was N, N' -bis (2, 6-diisopropylphenyl) carbodiimide commercially available from Shanghai Langmuir materials Co., ltd., "model 1010;
the platy zirconium phosphate used in the following examples is nano platy zirconium phosphate, and is obtained from Shanghai Langmuir functional materials Co., ltd., the crystal size under a scanning electron microscope is only 300-500nm, and the crystal size is analyzed by a laser particle size analyzer, and D99 is less than 6 mu m.
Example 1
The EVA material consists of the following components in parts by weight based on 100 parts by weight:
80 parts of a resin matrix; the resin matrix is EVA resin, the VA content is 28%, and the percentage is the percentage of the VA mass to the total mass of the EVA resin;
9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide;
9 parts of magnesium hydroxide;
2 parts of a silane coupling agent;
and (3) uniformly mixing the raw material composition of the EVA material, feeding the EVA material into an extruder at a feeding speed of 20-25kg/h, extruding, and granulating to obtain the EVA material with the particle size of 3-5 mm. Wherein the temperature of the head of the extruder is 90 ℃; the melt pressure of the extruder was 2.75MPa; the rotational speed of the screw of the extruder was 250r/min.
Example 2
The EVA material consists of the following components in parts by weight based on 100 parts by weight:
80 parts of a resin matrix; the resin matrix is EVA resin, the VA content is 28%, and the percentage is the percentage of the VA mass to the total mass of the EVA resin;
9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide;
9 parts of flaky zirconium phosphate;
2 parts of a silane coupling agent;
and (3) uniformly mixing the raw material composition of the EVA material, feeding the EVA material into an extruder at a feeding speed of 20-25kg/h, extruding, and granulating to obtain the EVA material with the particle size of 3-5 mm. Wherein the temperature of the head of the extruder is 140 ℃; the melt pressure of the extruder was 2.75MPa; the rotational speed of the screw of the extruder was 250r/min.
Example 3
The EVA material consists of the following components in parts by weight based on 100 parts by weight:
80 parts of a resin matrix; the resin matrix is EVA resin, the VA content is 28%, and the percentage is the percentage of the VA mass to the total mass of the EVA resin;
15 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide;
3 parts of magnesium hydroxide;
2 parts of a silane coupling agent;
and (3) uniformly mixing the raw material composition of the EVA material, feeding the EVA material into an extruder at a feeding speed of 20-25kg/h, extruding, and granulating to obtain the EVA material with the particle size of 3-5 mm. Wherein the temperature of the head of the extruder is 140 ℃; the melt pressure of the extruder was 2.75MPa; the rotational speed of the screw of the extruder was 250r/min.
Example 4
The EVA material consists of the following components in parts by weight based on 100 parts by weight:
80 parts of a resin matrix; the resin matrix is EVA resin, the VA content is 28%, and the percentage is the percentage of the VA mass to the total mass of the EVA resin;
3 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide;
15 parts of magnesium hydroxide;
2 parts of a silane coupling agent;
and (3) uniformly mixing the raw material composition of the EVA material, feeding the EVA material into an extruder at a feeding speed of 20-25kg/h, extruding, and granulating to obtain the EVA material with the particle size of 3-5 mm. Wherein the temperature of the head of the extruder is 140 ℃; the melt pressure of the extruder was 2.75MPa; the rotational speed of the screw of the extruder was 250r/min.
Example 5
The EVA material consists of the following components in parts by weight based on 100 parts by weight:
68 parts of a resin matrix; the resin matrix is EVA resin, the VA content is 28%, and the percentage is the percentage of the VA mass to the total mass of the EVA resin;
15 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide;
15 parts of magnesium hydroxide;
2 parts of phthalate ester coupling agent;
and (3) uniformly mixing the raw material composition of the EVA material, feeding the EVA material into an extruder at a feeding speed of 20-25kg/h, extruding, and granulating to obtain the EVA material with the particle size of 3-5 mm. Wherein the temperature of the head of the extruder is 140 ℃; the melt pressure of the extruder was 2.75MPa; the rotational speed of the screw of the extruder was 250r/min.
Example 6
The EVA material consists of the following components in parts by weight based on 100 parts by weight:
68 parts of a resin matrix; the resin matrix is EVA resin, the VA content is 28%, and the percentage is the percentage of the VA mass to the total mass of the EVA resin;
15 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide;
15 parts of flaky zirconium phosphate;
2 parts of a silane coupling agent;
and (3) uniformly mixing the raw material composition of the EVA material, feeding the EVA material into an extruder at a feeding speed of 20-25kg/h, extruding, and granulating to obtain the EVA material with the particle size of 3-5 mm. Wherein the temperature of the head of the extruder is 140 ℃; the melt pressure of the extruder was 2.75MPa; the rotational speed of the screw of the extruder was 250r/min.
Example 7
The EVA material consists of the following components in parts by weight based on 100 parts by weight:
80 parts of a resin matrix; the resin matrix is EVA resin, the VA content is 28%, and the percentage is the percentage of the VA mass to the total mass of the EVA resin;
9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide;
Bi(OH) x (NO 3 ) y ·nH 2 O(2.5<x<3，0<y<0.5, x+y=3) 9 parts;
2 parts of a silane coupling agent;
and (3) uniformly mixing the raw material composition of the EVA material, feeding the EVA material into an extruder at a feeding speed of 20-25kg/h, extruding, and granulating to obtain the EVA material with the particle size of 3-5 mm. Wherein the temperature of the head of the extruder is 140 ℃; the melt pressure of the extruder was 2.75MPa; the rotational speed of the screw of the extruder was 250r/min.
Example 8
The EVA material consists of the following components in parts by weight based on 100 parts by weight:
80 parts of a resin matrix; the resin matrix is EVA resin, the VA content is 28%, and the percentage is the percentage of the VA mass to the total mass of the EVA resin;
9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide;
4.5 parts of magnesium hydroxide;
4.5 parts of flaky zirconium phosphate;
2 parts of a silane coupling agent;
and (3) uniformly mixing the raw material composition of the EVA material, feeding the EVA material into an extruder at a feeding speed of 20-25kg/h, extruding, and granulating to obtain the EVA material with the particle size of 3-5 mm. Wherein the temperature of the head of the extruder is 140 ℃; the melt pressure of the extruder was 2.75MPa; the rotational speed of the screw of the extruder was 250r/min.
Example 9
The EVA material consists of the following components in parts by weight based on 100 parts by weight:
80 parts of a resin matrix; the resin matrix is EVA resin, the VA content is 20%, and the percentage is the percentage of the VA mass to the total mass of the EVA resin;
9 parts of polymerized carbodiimide;
9 parts of magnesium hydroxide;
2 parts of phthalate ester coupling agent;
and (3) uniformly mixing the raw material composition of the EVA material, feeding the EVA material into an extruder at a feeding speed of 20-25kg/h, extruding, and granulating to obtain the EVA material with the particle size of 3-5 mm. Wherein the temperature of the head of the extruder is 140 ℃; the melt pressure of the extruder was 2.75MPa; the rotational speed of the screw of the extruder was 250r/min.
Example 10
The EVA material consists of the following components in parts by weight based on 100 parts by weight:
80 parts of a resin matrix; the resin matrix comprises 40 parts of EVA resin and 40 parts of POE resin, wherein the VA content is 28%, and the percentage is the percentage of the mass of the VA to the total mass of the EVA resin;
9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide;
9 parts of magnesium hydroxide;
2 parts of phthalate ester coupling agent;
and (3) uniformly mixing the raw material composition of the EVA material, feeding the EVA material into an extruder at a feeding speed of 20-25kg/h, extruding, and granulating to obtain the EVA material with the particle size of 3-5 mm. Wherein the temperature of the head of the extruder is 140 ℃; the melt pressure of the extruder was 2.75MPa; the rotational speed of the screw of the extruder was 250r/min.
Comparative example 1
The EVA material consists of the following components in parts by weight based on 100 parts by weight:
83 parts of a resin matrix; the resin matrix is EVA resin;
15 parts of flaky zirconium phosphate;
2 parts of a silane coupling agent;
and (3) uniformly mixing the raw material composition of the EVA material, feeding the EVA material into an extruder at a feeding speed of 20-25kg/h, extruding, and granulating to obtain the EVA material with the particle size of 3-5 mm. Wherein the temperature of the head of the extruder is 140 ℃; the melt pressure of the extruder was 2.75MPa; the rotational speed of the screw of the extruder was 250r/min.
Comparative example 2
The EVA material consists of the following components in parts by weight based on 100 parts by weight:
83 parts of a resin matrix; the resin matrix is EVA resin;
15 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide;
2 parts of a silane coupling agent;
and (3) uniformly mixing the raw material composition of the EVA material, feeding the EVA material into an extruder at a feeding speed of 20-25kg/h, extruding, and granulating to obtain the EVA material with the particle size of 3-5 mm. Wherein the temperature of the head of the extruder is 140 ℃; the melt pressure of the extruder was 2.75MPa; the rotational speed of the screw of the extruder was 250r/min.
Comparative example 3
The EVA material comprises the following raw material compositions in parts by weight:
90 parts of a resin matrix; the resin matrix is EVA resin;
5 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide;
3 parts of magnesium hydroxide;
2 parts of a silane coupling agent;
and (3) uniformly mixing the raw material composition of the EVA material, feeding the EVA material into an extruder at a feeding speed of 20-25kg/h, extruding, and granulating to obtain the EVA material with the particle size of 3-5 mm. Wherein the temperature of the head of the extruder is 140 ℃; the melt pressure of the extruder was 2.75MPa; the rotational speed of the screw of the extruder was 250r/min.
Because the content of EVA resin in the raw material composition of the EVA material is too high, the content of the additive is reduced, so that the hydrolysis resistance of the EVA material is reduced, and the PID attenuation is accelerated.
Comparative example 4
The EVA material comprises the following raw material compositions in parts by weight:
78 parts of a resin matrix; the resin matrix is EVA resin;
1 part of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide;
20 parts of magnesium hydroxide;
1 part of a silane coupling agent;
and (3) uniformly mixing the raw material composition of the EVA material, feeding the EVA material into an extruder at a feeding speed of 20-25kg/h, extruding, and granulating to obtain the EVA material with the particle size of 3-5 mm. Wherein the temperature of the head of the extruder is 140 ℃; the melt pressure of the extruder was 2.75MPa; the rotational speed of the screw of the extruder was 250r/min.
The content of the ion adsorbent in the raw material composition of the EVA material is too high, so that the hydrolysis resistance of the EVA material is reduced due to the reduction of the content of the hydrolysis inhibitor, and the PID attenuation is accelerated.
Comparative example 5
The EVA material comprises the following raw material compositions in parts by weight:
70 parts of a resin matrix; the resin matrix is EVA resin;
20 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide;
8 parts of magnesium hydroxide;
2 parts of a silane coupling agent;
and (3) uniformly mixing the raw material composition of the EVA material, feeding the EVA material into an extruder at a feeding speed of 20-25kg/h, extruding, and granulating to obtain the EVA material with the particle size of 3-5 mm. Wherein the temperature of the head of the extruder is 140 ℃; the melt pressure of the extruder was 2.75MPa; the rotational speed of the screw of the extruder was 250r/min.
Performance problems such as reduced transparency can result from hydrolysis resistance agents or ion adsorbents.
Example 12
The packaging adhesive film consists of the following materials, wherein the dosage of EVA materials prepared in examples 1-10 and comparative examples 1-5 is 2 parts; the resin matrix is EVA resin, and the dosage of the EVA resin is 97 parts; the dosage of the tert-butyl peroxyisopropyl carbonate is 0.5 part; the amount of pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] was 0.5 part. The raw materials of the packaging adhesive film are subjected to the procedures of premixing, melt extrusion, casting film forming, cooling, slitting, rolling and the like to prepare the packaging adhesive film, and the light transmittance, the water vapor transmittance and the power attenuation of the adhesive film are tested.
Cutting the rolled adhesive film into a size which is equal to that of a solar photovoltaic module, laminating the adhesive film and the solar photovoltaic module according to the structural sequence of glass/PID-resistant ethylene vinyl acetate adhesive film/battery piece/common EVA film/back plate, vacuumizing and laminating the adhesive film at 145 ℃, vacuumizing for 5 minutes and laminating the adhesive film for 12 minutes, and performing PID experiments on the obtained laminated piece. PID test of photovoltaic module according to IEC TS 62804-1:2015, the test condition is increased to 85 ℃,85% RH is added, a negative 1500V constant direct current voltage is added, and after 192 hours, the power attenuation before and after the PID test of the photovoltaic module is measured, so that the test result of the packaging material of the table 2 is obtained.
TABLE 2
From the data in table 2, it can be seen that EVA materials with lower water vapor transmission rates and power decay rates of less than 3% can be obtained by the cooperation of specific amounts of ion adsorbent and hydrolysis inhibitor, and the qualification standards can be achieved. The application can obtain lower power attenuation rate without using POE resin which is expensive and has poor compatibility with EVA resin.
Several ion adsorbents exemplified in examples 1 to 10 can achieve the effects of the present application. Wherein a bismuth element-containing compound (Bi (OH) is selected as compared with other ion adsorbents x (NO 3 ) y ·nH 2 O(2.5<x<3，0<y<0.5, x+y=3) as ion adsorbent, the effect on the transparency of EVA is small; bismuth compounds can absorb both anions and cations, which is equivalent to the effect of an equivalent amount of an anionic adsorbent, cationic adsorbent mixture.
The synergistic effect of the anti-hydrolysis agent and the adsorbent in examples 5 and 6 is far superior to that of the single additive, compared with comparative examples 1 and 2, in which both the water vapor transmission rate and the power decay rate are poor.
Claims (24)
1. The EVA material is characterized by comprising the following components in parts by weight based on 100 parts by weight:
60-80 parts of a resin matrix, wherein the resin matrix comprises EVA resin;
3-18 parts of an ion adsorbent;
3-18 parts of an anti-hydrolysis agent;
1-5 parts of a dispersing agent.
2. The EVA material according to claim 1, wherein the resin matrix is used in an amount of 68 to 80 parts;
and/or the resin matrix is EVA resin;
and/or, the resin matrix further comprises POE resin;
and/or the mass content of VA in the EVA resin is 20-30%, wherein the percentage is the percentage of the mass of VA in the total mass of the EVA resin;
and/or the EVA resin has a number average molecular weight of 1500-4000;
and/or the melt index of the EVA resin is 20-25 g/10min;
and/or the mass part ratio of the ion adsorbent to the hydrolysis inhibitor is 1 (0.2-5).
3. The EVA material according to claim 2, wherein the resin matrix is used in an amount of 68 or 80 parts;
and/or when the resin matrix further comprises POE resin, the mass part ratio of the POE resin to the EVA resin is 1 (0.1-10);
and/or the mass content of VA in the EVA resin is 20% or 28%, and the percentage is the percentage of the mass of VA to the total mass of the EVA resin;
and/or, the EVA resin has a number average molecular weight of 2000;
and/or, the melt index of the EVA resin is 25g/10min;
and/or the mass fraction ratio of the ion adsorbent to the hydrolysis inhibitor is 1:1.
4. The EVA material of claim 3, wherein when the resin matrix further comprises POE resin, the mass fraction ratio of POE resin to EVA resin is 1:1.
5. The EVA material of claim 1, wherein the amount of the ion adsorbent is 3 to 15 parts;
and/or the ion adsorbent comprises a cation adsorbent, an anion adsorbent and an anion and cation adsorbent.
6. The EVA material of claim 1, wherein the ion adsorbent comprises aluminum hydroxide.
7. The EVA material of claim 5, wherein the ionic adsorbent is used in an amount of 3, 9 or 15 parts;
and/or the cationic adsorbent comprises one or more of zirconium phosphate, magnesium silicate and aluminum silicate;
and/or the anionic adsorbent comprises hydrotalcite and/or magnesium hydroxide;
and/or the anion and cation adsorbent comprises a bismuth element-containing compound.
8. The EVA material of claim 7, wherein the cationic adsorbent comprises a sheet zirconium phosphate;
and/or the anionic adsorbent comprises magnesium hydroxide;
and/or the anion and cation adsorbent comprises Bi (OH) x (NO 3 ) y •nH 2 O, 2.5<x<3，0<y<0.5，x+y=3。
9. The EVA material of claim 1, wherein the amount of the hydrolysis inhibitor is 3 to 15 parts;
and/or the hydrolysis inhibitor is carbodiimide hydrolysis inhibitor;
and/or the dosage of the dispersing agent is 2-10 parts;
and/or the dispersant comprises a silane coupling agent and/or a phthalate coupling agent.
10. The EVA material of claim 9, wherein the hydrolysis inhibitor is used in an amount of 3, 9 or 15 parts;
and/or the hydrolysis inhibitor is monomer type carbodiimide and/or polymerization type carbodiimide;
and/or the dispersant is used in an amount of 2 parts.
11. The EVA material of claim 10, wherein the hydrolysis inhibitor is N, N' -bis (2, 6-diisopropylphenyl) carbodiimide.
12. EVA material according to claim 1, characterised in that the EVA material further comprises a compatibilizer and/or a cross-linking agent.
13. The EVA material of claim 12, wherein the compatibilizer is one or more of acrylic acid, acrylamide, methyl methacrylate, ethylene-acrylic acid (2-ethylhexyl) copolymer, and glycidyl methacrylate;
and/or the crosslinking agent is one or more of di (4-methylbenzoyl) peroxide, 1 '-di (tert-butylperoxy) cyclohexane, butyl-4, 4' -di (tert-butylperoxy) valerate, propoxylated neopentyl glycol diacrylate, pentaerythritol triacrylate, trimethylolpropane triacrylate and ethoxylated trimethylolpropane triacrylate.
14. The EVA material of claim 1, wherein the EVA material comprises the following components, based on 100 parts by total weight: 80 parts of EVA resin, wherein the mass content of VA in the EVA resin is 28%; 9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 9 parts of magnesium hydroxide; 2 parts of a silane coupling agent;
or, based on 100 parts of total weight, the EVA material comprises the following components: 80 parts of EVA resin, wherein the mass content of VA in the EVA resin is 28%; 9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 9 parts of flaky zirconium phosphate; 2 parts of a silane coupling agent;
or, based on 100 parts of total weight, the EVA material comprises the following components: 80 parts of EVA resin, wherein the mass content of VA in the EVA resin is 28%; 15 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 3 parts of magnesium hydroxide; 2 parts of a silane coupling agent;
or, based on 100 parts of total weight, the EVA material comprises the following components: 80 parts of EVA resin, wherein the mass content of VA in the EVA resin is 28%; 3 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 15 parts of magnesium hydroxide; 2 parts of a silane coupling agent;
or, based on 100 parts of total weight, the EVA material comprises the following components: 68 parts of EVA resin, wherein the mass content of VA in the EVA resin is 28%; 15 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 15 parts of magnesium hydroxide; 2 parts of phthalate ester coupling agent;
or, based on 100 parts of total weight, the EVA material comprises the following components: 68 parts of EVA resin, wherein the mass content of VA in the EVA resin is 28%; 15 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 15 parts of flaky zirconium phosphate; 2 parts of a silane coupling agent;
or, based on 100 parts of total weight, the EVA material comprises the following components: 80 parts of EVA resin, wherein the mass content of VA in the EVA resin is 28%; 9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; bi (OH) x (NO 3 ) y •nH 2 O9 part of 2.5<x<3，0<y<0.5, x+y=3; 2 parts of a silane coupling agent;
or, based on 100 parts of total weight, the EVA material comprises the following components: 80 parts of EVA resin, wherein the mass content of VA in the EVA resin is 28%; 9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 4.5 parts of magnesium hydroxide; 4.5 parts of flaky zirconium phosphate; 2 parts of a silane coupling agent;
or, based on 100 parts of total weight, the EVA material comprises the following components: 80 parts of EVA resin, wherein the mass content of VA in the EVA resin is 20%; 9 parts of polymerized carbodiimide; 9 parts of magnesium hydroxide; 2 parts of phthalate ester coupling agent;
or, based on 100 parts of total weight, the EVA material comprises the following components: 40 parts of EVA resin and 40 parts of POE resin, wherein the mass content of VA in the EVA resin is 20%; 9 parts of N, N' -bis (2, 6-diisopropylphenyl) carbodiimide; 9 parts of magnesium hydroxide; 2 parts of phthalate ester coupling agent.
15. The preparation method of the EVA material is characterized by comprising the following steps of: extruding and granulating the raw material mixture of the EVA material according to any one of claims 1-14.
16. The method of producing EVA material of claim 15, wherein the extrusion is performed in an extruder;
and/or the D50 particle size of the EVA material after dicing is 3-5 mm.
17. The method for producing EVA material according to claim 16, wherein the temperature of the extruder head is 90-140 ℃;
and/or the melt pressure of the extruder is 2.75MPa;
and/or the rotating speed of the screw rod of the extruder is 200-290 r/min.
18. The method of producing EVA material of claim 17, wherein the extruder head temperature is 90 ℃ or 140 ℃;
and/or the rotating speed of the screw rod of the extruder is 250r/min.
19. An EVA material, characterized in that it is produced by the production method according to any one of claims 15 to 18.
20. An encapsulating film comprising the EVA material of any one of claims 1-14 or 19.
21. The packaging adhesive film according to claim 20, wherein in the packaging adhesive film, the content of the EVA material is 2% or more, and the percentage is a percentage of the mass of the EVA material to the total mass of the packaging adhesive film;
and/or, the packaging adhesive film further comprises an ester compound;
and/or, the packaging adhesive film further comprises a resin substrate;
and/or the D50 particle size of the EVA material is 3-5 mm.
22. The packaging adhesive film according to claim 21, wherein in the packaging adhesive film, the content of the EVA material is 2-100%, and the percentage is the percentage of the mass of the EVA material to the total mass of the packaging adhesive film;
and/or the ester compound is tert-butyl peroxyisopropyl carbonate and/or pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ];
and/or the content of the ester compound is 0.5-2%, and the percentage is the percentage of the ester compound to the total mass of the packaging adhesive film;
and/or, the resin substrate comprises an EVA resin;
and/or the content of the resin base material is less than or equal to 97%, wherein the percentage is the percentage of the resin base material to the total mass of the packaging adhesive film.
23. The packaging adhesive film according to claim 22, wherein in the packaging adhesive film, the content of the EVA material is 2-10%, and the percentage is the percentage of the mass of the EVA material to the total mass of the packaging adhesive film;
and/or the content of the resin base material is 94-97%, and the percentage is the percentage of the resin base material to the total mass of the packaging adhesive film.
24. Use of an EVA material according to any one of claims 1 to 14 or 19 in a photovoltaic dual-glazing module packaging adhesive film.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102775924A (en) * | 2012-07-09 | 2012-11-14 | 苏州爱康光伏新材料有限公司 | Hydrolysis-resistant solar packaging EVA (ethylene-vinyl acetate) film, and preparation method and use method thereof |
| CN112920722A (en) * | 2021-03-31 | 2021-06-08 | 苏州赛伍应用技术股份有限公司 | Water-blocking packaging adhesive film and preparation method thereof |
| CN113234402A (en) * | 2021-05-07 | 2021-08-10 | 浙江祥邦科技股份有限公司 | High-resistance PID composite packaging adhesive film and preparation method thereof |
| CN114806460A (en) * | 2022-06-29 | 2022-07-29 | 江苏鹿山新材料有限公司 | Low-acid type white EVA photovoltaic packaging adhesive film and preparation method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102775924A (en) * | 2012-07-09 | 2012-11-14 | 苏州爱康光伏新材料有限公司 | Hydrolysis-resistant solar packaging EVA (ethylene-vinyl acetate) film, and preparation method and use method thereof |
| CN112920722A (en) * | 2021-03-31 | 2021-06-08 | 苏州赛伍应用技术股份有限公司 | Water-blocking packaging adhesive film and preparation method thereof |
| CN113234402A (en) * | 2021-05-07 | 2021-08-10 | 浙江祥邦科技股份有限公司 | High-resistance PID composite packaging adhesive film and preparation method thereof |
| CN114806460A (en) * | 2022-06-29 | 2022-07-29 | 江苏鹿山新材料有限公司 | Low-acid type white EVA photovoltaic packaging adhesive film and preparation method thereof |
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