WO2023085805A1 - 광소자용 봉지재 조성물 및 이를 이용한 광소자용 봉지재 필름 - Google Patents
광소자용 봉지재 조성물 및 이를 이용한 광소자용 봉지재 필름 Download PDFInfo
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- WO2023085805A1 WO2023085805A1 PCT/KR2022/017651 KR2022017651W WO2023085805A1 WO 2023085805 A1 WO2023085805 A1 WO 2023085805A1 KR 2022017651 W KR2022017651 W KR 2022017651W WO 2023085805 A1 WO2023085805 A1 WO 2023085805A1
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- 230000002745 absorbent Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
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- RWCCWEUUXYIKHB-UHFFFAOYSA-N benzophenone Chemical compound C=1C=CC=CC=1C(=O)C1=CC=CC=C1 RWCCWEUUXYIKHB-UHFFFAOYSA-N 0.000 description 1
- 239000012965 benzophenone Substances 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- 238000009835 boiling Methods 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
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
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- 238000000354 decomposition reaction Methods 0.000 description 1
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- 230000003111 delayed effect Effects 0.000 description 1
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- DRRZZMBHJXLZRS-UHFFFAOYSA-N n-[3-[dimethoxy(methyl)silyl]propyl]cyclohexanamine Chemical compound CO[Si](C)(OC)CCCNC1CCCCC1 DRRZZMBHJXLZRS-UHFFFAOYSA-N 0.000 description 1
- 229940078552 o-xylene Drugs 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 125000000864 peroxy group Chemical group O(O*)* 0.000 description 1
- 238000007539 photo-oxidation reaction Methods 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
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- 238000002360 preparation method Methods 0.000 description 1
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- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
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- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 239000003017 thermal stabilizer Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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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
- C08K5/56—Organo-metallic compounds, i.e. organic compounds containing a metal-to-carbon bond
- C08K5/57—Organo-tin compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
- C08F210/02—Ethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- 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
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0025—Crosslinking or vulcanising agents; including accelerators
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- 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
- C08K5/04—Oxygen-containing compounds
- C08K5/14—Peroxides
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- 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
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- C08K5/16—Nitrogen-containing compounds
- C08K5/22—Compounds containing nitrogen bound to another nitrogen atom
- C08K5/23—Azo-compounds
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- 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
- C08K5/54—Silicon-containing compounds
- C08K5/541—Silicon-containing compounds containing oxygen
- C08K5/5415—Silicon-containing compounds containing oxygen containing at least one Si—O bond
- C08K5/5419—Silicon-containing compounds containing oxygen containing at least one Si—O bond containing at least one Si—C bond
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- 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
- C08K5/54—Silicon-containing compounds
- C08K5/544—Silicon-containing compounds containing nitrogen
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D123/00—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers
- C09D123/02—Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
- C09D123/04—Homopolymers or copolymers of ethene
- C09D123/08—Copolymers of ethene
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/042—PV modules or arrays of single PV cells
- H01L31/048—Encapsulation of modules
- H01L31/0481—Encapsulation of modules characterised by the composition of the encapsulation material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/52—Encapsulations
- H01L33/56—Materials, e.g. epoxy or silicone resin
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/08—Copolymers of ethene
Definitions
- the present invention claims the benefit of priority based on Korean Patent Application No. 10-2021-0154112 filed on November 10, 2021, and all contents disclosed in the Korean Patent Application Document are included as part of this specification.
- the present invention relates to an encapsulant composition for an optical device having high volume resistance and light transmittance, and an encapsulant film for an optical device using the same.
- a protective sheet for solar cell modules transparent protective member on the surface
- solar cell module is used to obtain crystalline solar cell modules.
- Cell encapsulant/crystalline solar cell element crystalline solar cell element/solar cell encapsulant/protective sheet for solar cell module (back side protection member) are laminated in this order to manufacture the product.
- a thin-film solar cell element/solar cell encapsulant/protective sheet for a solar cell module (rear-side protective member) is sequentially laminated and manufactured.
- an ethylene/vinyl acetate copolymer or an ethylene/alpha-olefin copolymer is generally used.
- a light stabilizer is usually included as an additive.
- a silane coupling agent is usually contained in the solar cell encapsulant.
- ethylene/vinyl acetate copolymer (EVA) sheets have been widely used because of their excellent transparency, flexibility, and adhesiveness.
- An ethylene/vinyl acetate copolymer (EVA) film is widely used because of its excellent transparency, flexibility, and adhesiveness.
- EVA composition when used as a constituent material of the solar cell encapsulant, there is concern about the possibility that components such as acetic acid gas generated when EVA is decomposed may affect the solar cell device.
- the ethylene/alpha-olefin copolymer does not have the problem of hydrolysis of the resin, the problem of deterioration in life or reliability can be solved.
- the ethylene/alpha-olefin copolymer does not contain a polar group in the resin, the miscibility with the polar crosslinking aid included as a component of the existing solar cell encapsulant is lowered, so it takes a very long time to impregnate, which is a problem in productivity.
- Patent Document 1 Korean Patent Publication 2018-0063669
- An object to be solved by the present invention is to provide an encapsulant composition for an optical device, which includes an olefinic copolymer and a crosslinking aid having excellent mixing properties, and exhibits high volume resistance and excellent insulation through it.
- Another object to be solved by the present invention is to provide an encapsulant film for an optical device manufactured using the encapsulant composition for an optical device.
- Another problem to be solved by the present invention is to provide an optical device module including the encapsulant film for the optical device.
- the present invention provides an encapsulant composition for an optical device, an encapsulant film for an optical device, and an optical device module.
- the present invention relates to (1) an olefin-based copolymer; (2) cross-linking agents; (3) a silane coupling agent; And (4) to provide an encapsulant composition for an optical device comprising a compound of formula (1).
- l, m, n, and o are each independently an integer of 0 to 4.
- the present invention provides an encapsulant composition for an optical device according to the above [1], wherein the (1) olefin-based copolymer satisfies the following requirements:
- the present invention provides an encapsulant composition for an optical device according to the above [1] or [2], wherein the (1) olefin-based copolymer is an ethylene alpha-olefin copolymer.
- the present invention according to any one of the above [1] to [3], wherein (1) the olefin-based copolymer is an ethylene alpha-olefin copolymer having a volume resistivity of 1.0 ⁇ 10 15 ⁇ cm or more An encapsulant for an optical device composition is provided.
- crosslinking agent is one or two or more selected from the group consisting of organic peroxides, hydroperoxides and azo compounds
- the crosslinking agent is one or two or more selected from the group consisting of organic peroxides, hydroperoxides and azo compounds
- crosslinking agent is t-butylcumyl peroxide, di-t-butyl peroxide, di-cumyl peroxide, 2,5-dimethyl- 2,5-di(t-butylperoxy)hexane, 2,5-dimethyl-2,5-di(t-butylperoxy)-3-hexyne, cumene hydroperoxide, diisopropylbenzene hydroperoxide, 2,5-dimethyl-2,5-di(hydroperoxy)hexane, t-butylhydroperoxide, bis-3,5,5-trimethylhexanoyl peroxide, octanoylperoxide, benzoyl peroxide, o- Methylbenzoyl peroxide, 2,4-dichlorobenzoyl peroxide, t-butylperoxy isobutylate, t
- the present invention provides an encapsulant composition for an optical device according to any one of [1] to [7], wherein l, m, n, and o in Formula 1 are each independently an integer of 0 to 2.
- the present invention provides an encapsulant composition for an optical device according to any one of [1] to [8], wherein the compound represented by Chemical Formula 1 is tetravinyltin.
- the present invention according to any one of the above [1] to [9], wherein the encapsulant composition for an optical device is (1) 80 to 99 parts by weight of an olefin copolymer, (2) 0.1 to 9 parts by weight of an organic peroxide parts by weight, (3) 0.01 to 2 parts by weight of a silane coupling agent, and (4) 0.1 to 9 parts by weight of the compound of Formula 1 to provide an encapsulant composition for an optical device.
- the encapsulant composition for an optical device additionally includes (5) a crosslinking aid other than the compound of Formula 1, and the (5) crosslinking agent provides an encapsulant composition for an optical device comprising a compound containing at least one allyl group or (meth)acryloxy group.
- the crosslinking aid is triallyl isocyanurate (TAIC), triallyl cyanurate, diallyl phthalate, diallyl fumarate, diallyl maleate
- TAIC triallyl isocyanurate
- diallyl phthalate diallyl phthalate
- diallyl fumarate diallyl maleate
- an encapsulant composition for an optical device comprising at least one selected from the group consisting of ethylene glycol diacrylate, ethylene glycol dimethacrylate, and trimethylolpropane trimethacrylate.
- the present invention provides an encapsulant composition for an optical device according to [11] or [12], wherein the weight ratio of (4) the compound of Formula 1 and (5) the crosslinking aid is 20:80 to 80:20 .
- the present invention provides an encapsulant film for an optical device comprising an olefin-based copolymer and a compound represented by Formula 1 below.
- l, m, n, and o are each independently an integer of 0 to 4.
- the present invention provides an optical device module including an optical device and the encapsulant film for an optical device according to [14].
- the encapsulant composition for an optical device of the present invention includes an olefin-based copolymer and a compound containing tin having excellent miscibility as a crosslinking aid, and exhibits excellent volume resistance and light transmittance, so it can be widely used for various purposes in the electric and electronic industry. do.
- Figure 2 shows the impregnation torque values according to the stirring time when the ethylene/1-butene copolymer measured in Comparative Example 1 is impregnated with a crosslinking agent, a crosslinking aid, and a silane coupling agent as an impregnation torque curve. It is a graph that has been created.
- Figure 3 shows the impregnation torque values according to the stirring time when the ethylene/1-butene copolymer measured in Comparative Example 3 is impregnated with a crosslinking agent, a crosslinking aid, and a silane coupling agent as an impregnation torque curve. It is a graph that has been created.
- the encapsulant composition for an optical device of the present invention includes (1) an olefin-based copolymer; (2) cross-linking agents; (3) a silane coupling agent; And (4) characterized in that it comprises a compound of Formula 1 below.
- l, m, n, and o are each independently an integer of 0 to 4.
- the present invention relates to an encapsulant composition for an optical device exhibiting excellent electrical insulation properties due to high volume resistance.
- the encapsulant composition for an optical device of the present invention includes an olefin-based copolymer instead of the ethylene vinyl alcohol (EVA) applied to the conventional encapsulant composition for an optical device, and the acetate group of ethylene vinyl alcohol in a humid environment It is possible to improve the durability and reliability of the optical device module by solving the problem of forming acetic acid by decomposition.
- EVA ethylene vinyl alcohol
- the polar crosslinking aid previously applied to ethylene vinyl alcohol (EVA) lacks miscibility with the olefinic copolymer that does not contain a polar group.
- EVA ethylene vinyl alcohol
- the (1) olefin-based copolymer included in the encapsulant composition for an optical device according to an example of the present invention satisfies (a) a density of 0.85 to 0.90 g / cc, and (b) a melt index of 0.1 to 100 g / 10min can
- the density of the olefin-based copolymer is specifically 0.850 g / cc or more, 0.855 g / cc or more, 0.860 g / cc or more, 0.865 g / cc or more 0.870 g / cc to 0.900 g / cc or less 0.895 g / cc or less, 0.890 g/cc or less, 0.885 g/cc or less, 0.880 g/cc or less, 0.875 g/cc or less, or 0.870 g/cc or less.
- the density of the olefin-based copolymer is too high, the light transmittance of the optical device encapsulant composition and the optical device encapsulant prepared using the same may be reduced due to the crystal phase included in the olefin-based copolymer, but the olefin-based copolymer is When the density range is satisfied, high light transmittance may be exhibited.
- the melt index of the olefin-based copolymer is 0.1 g / 10 min or more, 0.5 g / 10 min or more, 1.0 g / 10 min or more, 1.5 g / 10 min or more, 2.0 g / 10 min or more, 2.5 g / 10 min or more, 5.0 g /10min or more, or 10.0 g/10min or more to 100 g/10min or less, 95 g/10min or less, 90 g/10min or less, 85 g/10min or less, 80 g/10min or less, 75 g/10min or less, 70 g/ 10 min or less, 60 g/10 min or less, or 50 g/10 min or less.
- melt index of the olefin-based copolymer is too low or too high beyond the above range, the moldability of the encapsulant composition for an optical device may be deteriorated, so that stable extrusion may be difficult, but the olefin-based copolymer may have a melt index When the range is satisfied, since the formability of the encapsulant composition for an optical device is excellent, it is possible to stably extrude an encapsulant for an optical device or a sheet of an encapsulant for an optical device.
- the (1) olefin-based copolymer included in the encapsulant composition for an optical device according to an example of the present invention may be an ethylene/alpha-olefin copolymer.
- the density of ethylene/alpha-olefin copolymers is affected by the type and content of monomers used during polymerization, the degree of polymerization, and the like, and in the case of copolymers, it is greatly influenced by the content of comonomers. In this case, the higher the comonomer content, the lower density ethylene/alpha-olefin copolymer can be prepared, and the amount of the comonomer introduced into the copolymer may depend on the copolymerizability inherent in the catalyst.
- the ethylene/alpha-olefin copolymer included in the encapsulant composition for an optical device of the present invention may exhibit low density and excellent processability as described above.
- the ethylene/alpha-olefin copolymer is prepared by copolymerizing ethylene and an alpha-olefin monomer, wherein the alpha-olefin, which means a portion derived from the alpha-olefin monomer in the copolymer, is C4 to C20 alpha -olefins, specifically propylene, 1-butene, 1-pentene, 4-methyl-1-pentene, 1-hexene, 1-heptene, 1-octene, 1-decene, 1-undecene, 1-dodecene, 1 -Tetradecene, 1-hexadecene, or 1-eicosene may be mentioned, and one of these may be used alone or in a mixture of two or more.
- the alpha-olefin which means a portion derived from the alpha-olefin monomer in the copolymer, is C4 to C20 alpha -olefins, specifically propylene
- the alpha-olefin may be 1-butene, 1-hexene or 1-octene, preferably 1-butene, 1-hexene or a combination thereof.
- the content of alpha-olefin in the ethylene / alpha-olefin copolymer may be appropriately selected within a range that satisfies the above physical property requirements, specifically, more than 0 and 99 mol% or less, or 10 to 50 mol% It may be, but is not limited thereto.
- the (1) olefin-based copolymer may be an ethylene alpha-olefin copolymer having a volume resistivity of 1.0 ⁇ 10 15 ⁇ cm or more, specifically 3.0 ⁇ 10 15 ⁇ cm or more, 5.0 ⁇ 10 15 ⁇ cm or more, 7.0 ⁇ 10 15 ⁇ cm or more, 1.0 ⁇ 10 16 ⁇ cm or more, 3.0 ⁇ 10 16 ⁇ cm or more, or 5.0 ⁇ 10 16 ⁇ cm or more It may be a copolymer.
- the volume resistivity of the (1) olefin-based copolymer is too low, the volume resistivity after crosslinking of the encapsulant composition for an optical device may not reach an appropriate level, but the volume resistivity of the (1) olefin-based copolymer may satisfy the above value In this case, the encapsulant composition for an optical device may exhibit excellent volume resistance after crosslinking.
- the upper limit of the volume resistivity of the olefin-based copolymer is not particularly limited, but considering that it is difficult to prepare an olefin-based copolymer having a high volume resistivity and a high volume resistivity, 9.9 ⁇ 10 16 ⁇ cm or less, 9.0 ⁇ 10 16 ⁇ cm or less, 7.0 ⁇ 10 16 ⁇ cm or less, 5.0 ⁇ 10 16 ⁇ cm or less, 3.0 ⁇ 10 16 ⁇ cm or less, 2.5 ⁇ 10 16 ⁇ cm or less, or 2.0 ⁇ 10 16 ⁇ cm or less may be used.
- crosslinking agent various crosslinking agents known in the art may be used as long as they are crosslinkable compounds capable of initiating radical polymerization or forming crosslinking bonds, and 1 selected from the group consisting of organic peroxides, hydroperoxides and azo compounds A species or two or more species may be used.
- the crosslinking agent may specifically be an organic peroxide.
- the organic peroxide may be an organic peroxide having a 1-hour half-life temperature of 120 to 135°C, for example, 120 to 130°C, 120 to 125°C, preferably 121°C.
- the "1-hour half-life temperature” means a temperature at which the half-life of the crosslinking agent is 1 hour.
- the temperature at which the radical initiation reaction efficiently occurs is different, and therefore, when an organic peroxide having a 1-hour half-life temperature in the above range is used as a crosslinking agent, a lamination process temperature for manufacturing an optoelectronic device
- a radical initiation reaction, that is, a crosslinking reaction can proceed effectively.
- the crosslinking agent includes t-buylcumyl peroxide, di-t-butyl peroxide, di-cumyl peroxide, 2,5-dimethyl-2,5-di(t-butylperoxy)hexane, 2,5-dimethyl dialkyl peroxides such as -2,5-di(t-butylperoxy)-3-hexyne; hydroperoxides such as cumene hydroperoxide, diisopropylbenzene hydroperoxide, 2,5-dimethyl-2,5-di(hydroperoxy)hexane, and t-butyl hydroperoxide; diacyl peroxides such as bis-3,5,5-trimethylhexanoyl peroxide, octanoyl peroxide, benzoyl peroxide, o-methylbenzoyl peroxide, and 2,4-dichlorobenzoyl peroxide; t-butylperoxy isobuty
- the silane coupling agent may be, for example, N-( ⁇ -aminoethyl)- ⁇ -aminopropyltrimethoxysilane, N-( ⁇ -aminoethyl)- ⁇ -aminopropylmethyldimethoxysilane, ⁇ - Aminopropyltriethoxysilane, ⁇ -glycidoxypropyltrimethoxysilane, ⁇ -methacryloxypropyltrimethoxysilane (MEMO), vinyltrimethoxysilane, vinyltriethoxysilane, 3-methacryloxy It may be at least one selected from the group consisting of propyl methyldimethoxysilane, 3-methacryloxypropyl methyldiethoxysilane, 3-methacryloxypropyl triethoxysilane, and p-styryl trimethoxysilane.
- the encapsulant composition for an optical device of the present invention includes a compound represented by Formula 1 below.
- l, m, n, and o are each independently an integer of 0 to 4.
- l, m, n, and o may each independently be an integer of 0 to 2.
- the encapsulant composition for an optical device may specifically include tetravinyltin as a compound represented by Formula 1 below.
- the compound of Formula 1 may be included as a crosslinking aid in the encapsulant composition for an optical device, and the compound of Formula 1 is compared to a compound containing an allyl group such as triallyl isocyanurate (TAIC), which has been previously used as a crosslinking aid. Since it has a relatively low polarity, it can exhibit excellent mixability with the (1) olefin-based copolymer included in the encapsulant composition for an optical device of the present invention, and accordingly, the impregnation time of the crosslinking aid can be shortened. also.
- TAIC triallyl isocyanurate
- An encapsulant composition for an optical device includes (1) 80 to 99 parts by weight of an olefin copolymer, (2) 0.1 to 9 parts by weight of a crosslinking agent, and (3) 0.01 to 2 parts by weight of a silane coupling agent. , and (4) 0.1 to 9 parts by weight of the compound of Formula 1.
- the content of each component may mean a relative ratio between the weights of each component included in the encapsulant composition for an optical device.
- the (1) olefin-based copolymer may be included in 80 to 99 parts by weight, specifically 80 parts by weight or more, 82 parts by weight or more, 85 parts by weight or more, 86 parts by weight or more, 87 parts by weight or more, 88 parts by weight or more 99 parts by weight or less, 98 parts by weight or less, 97 parts by weight or less, 96 parts by weight or less, or 95 parts by weight or less. If the content of the (1) olefin-based copolymer is too small, it is difficult to properly exhibit mechanical properties such as tear resistance and tear strength of the encapsulant for optical devices. When included within the range, suitable mechanical properties can be exhibited as an encapsulant for an optical device.
- the (2) crosslinking agent may be included in an amount of 0.1 to 9 parts by weight, specifically 0.1 parts by weight or more, 0.2 parts by weight or more, 0.3 parts by weight or more, 0.4 parts by weight or more, 0.5 parts by weight or more, 0.6 parts by weight or more, 0.7 parts by weight or more. 0.8 parts by weight or more, or 1 part by weight or more to 9 parts by weight or less, 8 parts by weight or less, 7 parts by weight or less, 6 parts by weight or less, 5 parts by weight or less, 4 parts by weight or less, or 3 parts by weight or less.
- the encapsulant for an optical device may be prepared as an encapsulant for an optical device by appropriately causing a crosslinking reaction, and the prepared encapsulant for an optical device may exhibit high volume resistance.
- the (3) silane coupling agent may be included in an amount of 0.01 to 2 parts by weight, specifically 0.01 parts by weight or more, 0.02 parts by weight or more, 0.05 parts by weight or more, 0.07 parts by weight or more, 0.09 parts by weight or more, 0.1 parts by weight or more, or 0.15 parts by weight or more and 2 parts by weight or less, 1.8 parts by weight or less, 1.7 parts by weight or less, 1.5 parts by weight or less, 1.2 parts by weight or less, 1.0 parts by weight or less, 0.8 parts by weight or less, 0.7 parts by weight or less, 0.5 parts by weight or less, Or it may be included in an amount of 0.4 parts by weight or less.
- the adhesive strength of the encapsulant composition for an optical device to a substrate for example, the adhesive strength of the encapsulant composition for an optical device to a glass substrate is low, making it difficult to exhibit appropriate performance as an encapsulant for an optical device, (3) Excessive content of the silane coupling agent is not suitable because the volume resistance of the encapsulant for optical devices decreases.
- the encapsulant composition for an optical device exhibits excellent adhesion to the substrate of the optical device or the glass substrate on which the optical device is located, effectively preventing the penetration of moisture, etc. It is possible to enable the optical device to maintain excellent performance over a long period of time, and the encapsulant for the optical device can exhibit high volume resistance.
- the (4) compound of Formula 1 may be included in an amount of 0.1 to 9 parts by weight, specifically 0.1 parts by weight or more, 0.2 parts by weight or more, 0.3 parts by weight or more, 0.4 parts by weight or more, 0.5 parts by weight or more, 0.6 parts by weight or more, 0.7 parts by weight or more, 0.8 parts by weight or more, or 1 part by weight or more and 9 parts by weight or less, 8 parts by weight or less, 7 parts by weight or less, 6 parts by weight or less, 5 parts by weight or less, 4 parts by weight or less, or 3 parts by weight may be included below.
- the optical device encapsulant composition can properly cause a crosslinking reaction to be manufactured as an optical device encapsulant, and the prepared optical device encapsulant can exhibit high volume resistance.
- the encapsulant composition for an optical device may additionally include (5) a crosslinking aid other than the compound of Formula 1.
- crosslinking aid various crosslinking aids known in the art may be used, and for example, a compound containing at least one unsaturated group such as an allyl group or a (meth)acryloxy group may be included.
- Examples of the (5) crosslinking aid include polyallyl compounds such as triallyl isocyanurate (TAIC), triallyl cyanurate, diallyl phthalate, diallyl fumarate or diallyl maleate,
- Examples of the compound containing the (meth)acryloxy group include poly(meth)acryloxy compounds such as ethylene glycol diacrylate, ethylene glycol dimethacrylate, and trimethylolpropane trimethacrylate. , but is not particularly limited thereto.
- the weight ratio of the compound of Formula 1 (4) and the crosslinking aid (5) is 20:80 to 80:20, specifically 21:79 to 79:21, 22:78 to 78:22, 23:77 to 77:23, 24:76 to 76:24, or 25:75 to 75:25 can be
- the encapsulant composition for an optical device according to an example of the present invention further includes (5) a crosslinking aid other than the compound of Formula 1, the total amount of the compound of Formula 1 (4) and the crosslinking aid (5) is 0.1 to 0.1 It may be included in an amount of 9 parts by weight, specifically 0.1 parts by weight or more, 0.2 parts by weight or more, 0.3 parts by weight or more, 0.4 parts by weight or more, 0.5 parts by weight or more, 0.6 parts by weight or more, 0.7 parts by weight or more, 0.8 parts by weight or more. , or 1 part
- the encapsulant composition for an optical device according to an example of the present invention includes (4) the compound of Formula 1 and (5) a crosslinking aid together, high volume resistance, fast dipping speed, excellent light transmittance and adhesion can be satisfied, , It is possible to achieve a higher degree of crosslinking compared to the case of using only the compound of Formula 1 above (4).
- the encapsulant composition for an optical device may further include at least one additive selected from a light stabilizer, a UV absorber, and a heat stabilizer, if necessary.
- the light stabilizer may serve to prevent photooxidation by capturing active species at the onset of photodegradation of the resin, depending on the application of the composition.
- the type of light stabilizer that can be used is not particularly limited, and known compounds such as hindered amine-based compounds or hindered piperidine-based compounds can be used.
- the UV absorber may absorb ultraviolet rays from sunlight and convert them into harmless thermal energy in molecules according to the use of the composition, thereby preventing the excitation of active species for initiating photodegradation in the resin composition.
- Specific types of UV absorbers that can be used are not particularly limited, and examples include inorganic UV absorbers such as benzophenone, benzotriazole, acrylonitrile, metal complex salts, hindered amines, ultrafine titanium oxide or ultrafine zinc oxide.
- inorganic UV absorbers such as benzophenone, benzotriazole, acrylonitrile, metal complex salts, hindered amines, ultrafine titanium oxide or ultrafine zinc oxide.
- One type or a mixture of two or more types of absorbents and the like can be used.
- thermal stabilizer examples include tris (2,4-di-tert-butylphenyl) phosphite, bis [2,4-bis (1,1-dimethylethyl) -6-methylphenyl] ethyl ester phosphorous acid, tetrakis phosphorus series such as (2,4-di-tert-butylphenyl)[1,1-biphenyl]-4,4'-diylbisphosphonate and bis(2,4-di-tert-butylphenyl)pentaerythritol diphosphite; stabilizator; and lactone-based heat stabilizers such as reaction products of 8-hydroxy-5,7-di-tert-butyl-furan-2-one and o-xylene. One or two or more of these may be used. there is.
- the content of the light stabilizer, UV absorber and/or heat stabilizer is not particularly limited. That is, the content of the additive may be appropriately selected in consideration of the use of the resin composition, the shape or density of the additive, and is usually within the range of 0.01 to 5 parts by weight based on 100 parts by weight of the total solid content of the encapsulant composition for an optical device. can be properly adjusted.
- the encapsulant composition for an optical device of the present invention may appropriately additionally include various additives known in the related art according to the application to which the resin component is applied in addition to the above components.
- the encapsulant composition for optical devices can be molded by injection, extrusion, etc. and used as various molded products, and specifically, as an encapsulant for encapsulating devices in various optoelectronic devices, such as solar cells. It can be used, for example, it can also be used as an industrial material applied to an elevated temperature lamination process, but the use is not limited thereto.
- the present invention provides an encapsulant film for an optical device comprising an olefin-based copolymer and a compound represented by Formula 1 below.
- l, m, n, and o are each independently an integer of 0 to 4.
- l, m, n, and o may each independently be an integer of 0 to 2.
- the encapsulant composition for an optical device may specifically include tetravinyltin as a compound represented by Formula 1 below.
- the present invention provides an optical device encapsulation film comprising the optical device encapsulation composition.
- the encapsulant film for an optical device of the present invention can be prepared by molding a composition containing the olefin-based copolymer and the compound represented by Formula 1 into a film or sheet shape, and specifically, the encapsulant composition for an optical device is formed into a film or sheet shape. It can be manufactured by molding. Such a molding method is not particularly limited, and for example, it can be produced by sheeting or filming by a conventional process such as a T-die process or extrusion.
- the manufacture of the encapsulant film for an optical device is an in situ process using a device in which the manufacture of a resin composition using the encapsulant composition for an optical device and the film formation or sheet formation process are connected to each other. can be done
- the thickness of the encapsulant film for the optical device may be adjusted to about 10 to 2,000 ⁇ m, or about 100 to 1,250 ⁇ m in consideration of support efficiency and breakability of the device in the optoelectronic device, light weight or workability of the device, and the like. may change accordingly.
- the present invention provides an optical device module including an optical device and an encapsulant film for the optical device.
- the optical device may be, for example, a solar cell, and the optical device module may be a solar cell module.
- the optical device module fills the gap between the optical device cells arranged in series or in parallel, for example, the solar cell, with the optical device encapsulant film of the present invention, and a glass surface is disposed on the surface where sunlight strikes, and the rear surface is It may have a configuration protected by a back sheet, but is not limited thereto, and various types and forms of optical device modules or solar cell modules manufactured including encapsulant films for optical devices in the art can be applied to the present invention. .
- the glass surface may use tempered glass to protect the optical element from external impact and prevent damage, and low iron tempered glass having a low iron content to prevent reflection of sunlight and increase sunlight transmittance. It can be used, but is not limited thereto.
- the back sheet is a weather-resistant film that protects the rear surface of the optical device module from the outside, and is, for example, a fluorine-based resin sheet, a metal plate or metal foil such as aluminum, a cyclic olefin-based resin sheet, a polycarbonate-based resin sheet, and a poly(meth)acrylic resin.
- a sheet, a polyamide-based resin sheet, a polyester-based resin sheet, a composite sheet obtained by laminating a weather resistant film and a barrier film, and the like, are not limited thereto.
- optical device module of the present invention may be manufactured without limitation according to a method known in the art, except for including the above-described encapsulant film for an optical device.
- the optical device module of the present invention is manufactured using an encapsulant film for an optical device having excellent volume resistance, and can prevent current from leaking to the outside by moving electrons in the optical device module through the encapsulant film for an optical device, Accordingly, it is possible to greatly suppress a PID (Potential Induced Degradation) phenomenon in which insulation property is deteriorated, leakage current is generated, and the output of the module is rapidly reduced.
- PID Physical Induced Degradation
- t-butyl 1-(2-ethylhexyl) monoperoxycarbonate (TBEC, manufactured by Sigma-Aldrich) 1 phr (parts per hundred rubber) as a crosslinking agent using an electric pipette ), 0.375 phr of triallyl isocyanurate (TAIC, manufactured by Sigma-Aldrich) and 0.125 phr of tetravinyl tin (TVT, manufactured by Sigma-Aldrich) as a crosslinking aid, and methacryloxypropyltrimethoxysilane (MEMO, Shin-Etsu Co., Ltd.) as a silane coupling agent manufacturer) 0.2 phr was added. While stirring at 40 rpm, the change in torque value over time was observed, and impregnation was terminated when the torque value rapidly increased.
- TAIC triallyl isocyanurate
- TVT tetravinyl tin
- MEMO methacryloxypropyltri
- the impregnated sample was press-molded to an average thickness of 0.5 mm using a micro extruder at a low temperature (extruder barrel temperature of 90 to 100 ° C) to the extent that high temperature crosslinking did not occur, to prepare a sheet-type encapsulant film.
- TAIC triallyl isocyanurate
- TVT tetravinyltin
- Example 1 except that ethylene vinyl acetate (EVA, EP28025, manufactured by LG Chem) was used instead of LUCENE TM LF675 in Preparation Example 1, and only 0.5 phr of triallyl isocyanurate (TAIC) was used as a crosslinking aid.
- EVA ethylene vinyl acetate
- TAIC triallyl isocyanurate
- an optical device encapsulant composition and an encapsulant film were prepared in the same manner as in Example 1.
- An optical device encapsulant composition and an encapsulant film were prepared in the same manner as in Example 1, except that only 0.5 phr of triallyl isocyanurate (TAIC) was used as a crosslinking aid.
- TAIC triallyl isocyanurate
- An optical device encapsulant composition and an encapsulant film were prepared in the same manner as in Example 1, except that 0.5 phr of triallyl isocyanurate (TAIC) and 0.5 phr of tetravinylsilane (TVS) were used as crosslinking aids. .
- TAIC triallyl isocyanurate
- TVS tetravinylsilane
- An optical device encapsulant composition and an encapsulant film were prepared in the same manner as in Example 1, except that only 0.5 phr of tetravinylsilane (TVS) was used as a crosslinking aid.
- TVS tetravinylsilane
- An optical device encapsulant composition and an encapsulant film were prepared in the same manner as in Example 1, except that 0.25 phr of triallyl isocyanurate (TAIC) and 0.25 phr of tetravinylsilane (TVS) were used as crosslinking aids. .
- TAIC triallyl isocyanurate
- TVS tetravinylsilane
- POE ethylene 1-butene copolymer
- EVA ethylene vinyl alcohol
- TAIC triallyl isocyanurate
- TVT tetravinyltin
- TVS tetravinylsilane.
- the encapsulant film (15 cm ⁇ 15 cm) with a thickness of 0.5 mm prepared above between two release films (thickness: about 100 ⁇ m) and process temperature 150 °C in a vacuum laminator, process time 20 minutes (5 minutes vacuum / 1 minute) Pressing/14 min pressure duration) to crosslink by lamination.
- a fluorine-based solar backsheet was laminated thereon. Lamination was performed at a temperature of 150° C. for 20 minutes so that the encapsulant film was crosslinked and attached to the glass substrate. The encapsulant film of the specimen was cut with a width of 1 cm so that the width of the measurement area was 1 cm.
- a sample holder for UTM and a load cell of 1 kN are mounted on a tensile compression tester (LRX Plus Universal Test Machine, manufactured by LLOYD), and the encapsulant film attached to the glass substrate and the encapsulant film on the glass substrate are not attached. After fixing the ends of the unattached parts, the adhesion was tested by pulling at 60 mm/min.
- LRX Plus Universal Test Machine manufactured by LLOYD
- the cross-linked sheet was cut into a size of 3 ⁇ 3 mm 2 using scissors.
- the sides and bottom of a 7 ⁇ 10 cm 2 200 mesh wire mesh were stapled.
- the sheet was put into the wire mesh and the weight of the introduced sheet was measured. The amount of the sheet was 0.49 to 0.51 g.
- After inserting the sheet the top of the wire mesh was stapled and the total weight of the sample was measured.
- a solution in which 10 g of BHT (dibutylhydroxytoluene) was dissolved in 1,000 g of xylene was poured into a 2 L cylinder reactor, and 3 to 4 of the above samples were placed. The reactor was heated and reflux was terminated when 5 hours elapsed from the point at which boiling began.
- BHT dibutylhydroxytoluene
- a sample was taken out of the reactor with a metal scoop and washed with xylene. Vacuum dried overnight at 100 °C. The degree of crosslinking was calculated by measuring the weight of the dry sample. The degree of crosslinking can be determined by the average value of 3 to 4 samples refluxed in xylene.
- Example 1 34 41 1.38 ⁇ 10 17 88.6 92.3 235 71.3
- Example 2 19 67 4.04 ⁇ 10 17 87.7 92.2 208 72.6
- Example 3 9 84 5.53 ⁇ 10 17 88.0 92.2 218 73.3
- Example 4 5 91 7.60 ⁇ 10 17 86.9 92.2 224 67.6
- Example 5 4 93 1.04 ⁇ 10 18 85.1 92.2 212 67.1 Comparative Example 1 2 97 1.70 ⁇ 10 14 - - 160 94.3 Comparative Example 2 6 - 4.63 ⁇ 10 16 87.6 92.1 219 43.1 Comparative Example 3 58 0 4.44 ⁇ 10 16 87.3 92.1 204 76.9 Comparative Example 4 4 93 5.00 ⁇ 10 16
- the encapsulant composition for an optical device of Examples 1 to 5 exhibits higher volume resistance after crosslinking than the encapsulant composition for an optical device of Comparative Examples 1 to 6.
- EVA which is commonly used as a resin component in place of the olefin-based copolymer
- Comparative Examples 2 to 6 using ethylene 1-butene copolymer as in the Examples.
- TVT tetravinyltin
- Examples 1 to 5 showed an improved crosslinking agent impregnation rate compared to Comparative Example 3 in which 0.5 phr of triallyl isocyanurate (TAIC) was used. I could see it getting faster the more I did it.
- Examples 1 to 3 are examples in which tetravinyltin (TVT) and triallyl isocyanurate (TAIC) are used together, and Examples 4 and 5 are examples in which tetravinyltin (TVT) is used alone.
- TVT tetravinyltin
- TAIC triallyl isocyanurate
Abstract
Description
수지의 종류 | 가교제 (phr) |
실란커플링제 (phr) |
가교조제 | |||
TAIC (phr) | TVT (phr) | TVS (phr) | ||||
실시예 1 | POE | 1 | 0.2 | 0.375 | 0.125 | - |
실시예 2 | POE | 1 | 0.2 | 0.250 | 0.250 | - |
실시예 3 | POE | 1 | 0.2 | 0.125 | 0.375 | - |
실시예 4 | POE | 1 | 0.2 | - | 0.5 | - |
실시예 5 | POE | 1 | 0.2 | - | 1.0 | - |
비교예 1 | EVA | 1 | 0.2 | 0.5 | - | - |
비교예 2 | POE | 1 | 0.2 | - | - | - |
비교예 3 | POE | 1 | 0.2 | 0.5 | - | - |
비교예 4 | POE | 1 | 0.2 | 0.5 | - | 0.5 |
비교예 5 | POE | 1 | 0.2 | - | - | 0.5 |
비교예 6 | POE | 1 | 0.2 | 0.25 | - | 0.25 |
함침 속도 | 가교 후 체적 저항 (Ω·cm) |
광투과도 (%) | 부착성 (N/cm) |
가교도 (%) |
|||
Soaking 완료시간 (분) |
비교예 3에 대비한 완료시간 단축비율(%) | 가교후 (280~380 nm) |
가교후 (380~1100 nm) |
||||
실시예 1 | 34 | 41 | 1.38×1017 | 88.6 | 92.3 | 235 | 71.3 |
실시예 2 | 19 | 67 | 4.04×1017 | 87.7 | 92.2 | 208 | 72.6 |
실시예 3 | 9 | 84 | 5.53×1017 | 88.0 | 92.2 | 218 | 73.3 |
실시예 4 | 5 | 91 | 7.60×1017 | 86.9 | 92.2 | 224 | 67.6 |
실시예 5 | 4 | 93 | 1.04×1018 | 85.1 | 92.2 | 212 | 67.1 |
비교예 1 | 2 | 97 | 1.70×1014 | - | - | 160 | 94.3 |
비교예 2 | 6 | - | 4.63×1016 | 87.6 | 92.1 | 219 | 43.1 |
비교예 3 | 58 | 0 | 4.44×1016 | 87.3 | 92.1 | 204 | 76.9 |
비교예 4 | 4 | 93 | 5.00×1016 | - | - | - | 72.3 |
비교예 5 | 3 | 95 | 5.50×1016 | 88.1 | 91.9 | 103 | 61.3 |
비교예 6 | 23 | 60 | 5.78×1016 | 87.9 | 92.1 | 184 | 68.1 |
Claims (15)
- 제 1 항에 있어서,상기 (1) 올레핀계 공중합체는 하기 요건을 만족하는 것인 광소자용 봉지재 조성물:(a) 밀도 0.85 내지 0.90 g/cc, 및(b) 용융지수 0.1 내지 100 g/10min.
- 제 1 항에 있어서,상기 (1) 올레핀계 공중합체는 에틸렌 알파-올레핀 공중합체인 광소자용 봉지재 조성물.
- 제 1 항에 있어서,상기 (1) 올레핀계 공중합체는 체적 저항이 1.0×1015 Ω·cm 이상인 에틸렌 알파-올레핀 공중합체인 광소자용 봉지재 조성물.
- 제 1 항에 있어서,상기 가교제는 유기 과산화물, 히드로과산화물 및 아조 화합물로 이루어진 군에서 선택되는 1종 또는 2종 이상인 광소자용 봉지재 조성물.
- 제 1 항에 있어서,상기 가교제는 t-부틸큐밀퍼옥사이드, 디-t-부틸 퍼옥사이드, 디-큐밀 퍼옥사이드, 2,5-디메틸-2,5-디(t-부틸퍼옥시)헥산, 2,5-디메틸-2,5-디(t-부틸퍼옥시)-3-헥신, 큐멘 히드로퍼옥사이드, 디이소프로필 벤젠 히드로 퍼옥사이드, 2,5-디메틸-2,5-디(히드로퍼옥시)헥산, t-부틸히드로퍼옥사이드, 비스-3,5,5-트리메틸헥사노일 퍼옥사이드, 옥타노일퍼옥사이드, 벤조일 퍼옥사이드, o-메틸벤조일퍼옥사이드, 2,4-디클로로벤조일 퍼옥사이드, t-부틸퍼옥시 아이소 부틸레이트, t-부틸퍼옥시 아세테이트, t-부틸퍼옥시-2-에틸헥실카보네이트(TBEC), t-부틸퍼옥시-2-에틸헥사노에이트, t-부틸퍼옥시 피바레이트, t-부틸퍼옥시 옥토에이트, t-부틸퍼옥시아이소프로필 카보네이트, t-부틸퍼옥시벤조에이트, 디-t-부틸퍼옥시프탈레이트, 2,5-디메틸-2,5-디(벤조일퍼옥시)헥산, 2,5-디메틸-2,5-디(벤조일퍼옥시)-3-헥신, 메틸에틸케톤 퍼옥사이드, 사이클로헥사논 퍼옥사이드 아조비스이소부티로니트릴 및 아조비스(2,4-디메틸발레로니트릴)로 이루어지는 군에서 선택된 1종 이상인 광소자용 봉지재 조성물.
- 제 1 항에 있어서,상기 실란 커플링제는 N-(β-아미노에틸)-γ-아미노프로필트리메톡시실란, N-(β-아미노에틸)-γ-아미노프로필메틸디메톡시실란, γ-아미노프로필트리에톡시실란, γ-글리시독시프로필트리메톡시실란, γ-메타크릴옥시프로필트리메톡시실란(MEMO), 비닐트리메톡시실란, 비닐트리에톡시시란, 3-메타크릴옥시프로필 메틸디메톡시실란, 3-메타크릴옥시프로필 메틸디에톡시실란, 3-메타크릴옥시프로필 트리에톡시실란, 및 p-스티릴 트리메톡시실란으로 이루어진 군으로부터 선택되는 1종 이상인 광소자용 봉지재 조성물.
- 제 1 항에 있어서,상기 화학식 1에서 l, m, n, 및 o는 각각 독립적으로 0 내지 2의 정수인 광소자용 봉지재 조성물.
- 제 1 항에 있어서,상기 화학식 1의 화합물은 테트라비닐주석(tetravinyltin)인 광소자용 봉지재 조성물.
- 제 1 항에 있어서,상기 광소자용 봉지재 조성물은(1) 올레핀계 공중합체를 80 내지 99 중량부,(2) 가교제를 0.1 내지 9 중량부,(3) 실란 커플링제를 0.01 내지 2 중량부, 및(4) 화학식 1의 화합물을 0.1 내지 9 중량부 포함하는 것인 광소자용 봉지재 조성물.
- 제 1 항에 있어서,상기 광소자용 봉지재 조성물은 추가적으로 상기 화학식 1의 화합물 이외의 (5) 가교조제를 포함하고,상기 (5) 가교조제는 알릴기 또는 (메타)아크릴옥시기를 하나 이상 함유하는 화합물을 포함하는 광소자용 봉지재 조성물.
- 제 11 항에 있어서,상기 (5) 가교조제는 트리알릴 이소시아누레이트(TAIC), 트리알릴 시아누레이트, 디알릴 프탈레이트, 디알릴 푸마레이트, 디알릴 말레에이트, 에틸렌글리콜 디아크릴레이트, 에틸렌글리콜 디메타크릴레이트, 및 트리메틸올프로판 트라이메타크릴레이트로 이루어지는 군으로부터 선택된 1종 이상을 포함하는 광소자용 봉지재 조성물.
- 제 10 항에 있어서,상기 (4) 화학식 1의 화합물 및 (5) 가교조제의 중량비는 20:80 내지 80:20인 광소자용 봉지재 조성물.
- 광소자, 및 제 14 항에 따른 광소자용 봉지재 필름을 포함하는 광소자 모듈.
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KR20150050743A (ko) * | 2013-10-31 | 2015-05-11 | 도레이첨단소재 주식회사 | 배리어 층을 사용한 태양전지용 봉지재 시트 및 그 제조 방법 |
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KR20210128320A (ko) * | 2020-04-16 | 2021-10-26 | 주식회사 엘지화학 | 에틸렌/알파-올레핀 공중합체를 포함하는 봉지재 필름용 조성물 및 이를 포함하는 봉지재 필름 |
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