WO2020096329A1 - Composition for coating glass for photovoltaic module and photovoltaic module comprising coating layer formed of composition - Google Patents

Composition for coating glass for photovoltaic module and photovoltaic module comprising coating layer formed of composition Download PDF

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WO2020096329A1
WO2020096329A1 PCT/KR2019/014934 KR2019014934W WO2020096329A1 WO 2020096329 A1 WO2020096329 A1 WO 2020096329A1 KR 2019014934 W KR2019014934 W KR 2019014934W WO 2020096329 A1 WO2020096329 A1 WO 2020096329A1
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weight
glass
parts
coating composition
resin
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PCT/KR2019/014934
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French (fr)
Korean (ko)
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조재억
탁성주
김혜정
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주식회사 포스코
재단법인 포항산업과학연구원
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Publication of WO2020096329A1 publication Critical patent/WO2020096329A1/en

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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • 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
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • 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
    • C09D125/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • 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
    • C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • 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
    • C09D179/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09D161/00 - C09D177/00
    • C09D179/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
    • 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
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/20—Diluents or solvents
    • 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
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/41—Organic pigments; Organic dyes
    • 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
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • 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
    • H01L31/02—Details
    • H01L31/0216—Coatings
    • 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
    • H01L31/02—Details
    • H01L31/0216—Coatings
    • H01L31/02161—Coatings for devices characterised by at least one potential jump barrier or surface barrier
    • H01L31/02167—Coatings for devices characterised by at least one potential jump barrier or surface barrier for solar cells
    • 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
    • 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
    • H01L31/0488—Double glass encapsulation, e.g. photovoltaic cells arranged between front and rear glass sheets
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Definitions

  • the present invention relates to a photovoltaic module including a composition for coating a glass for photovoltaic modules and a coating layer formed of the composition.
  • the conventional photovoltaic power generation module has a problem in that it is difficult to secure an excellent aesthetic appearance, such as a general building exterior material.
  • the present invention has a problem that the transmittance of sunlight falls due to the light transmitting color member. Therefore, if a light-transmitting color member capable of increasing transmittance is developed, it is expected that a solar cell having various colors and having high solar transmittance can be used.
  • One aspect of the present invention is to provide a glass coating composition for a solar power module comprising a resin mixture and a pigment mixture.
  • Another aspect of the present invention is to provide a solar power module comprising a coating layer formed of the glass coating composition for the solar power module.
  • One aspect of the present invention is a resin mixture comprising a main solution and a curing agent solution; And it provides a glass coating composition for a photovoltaic module comprising a pigment mixture comprising a coloring pigment and pearl pigments.
  • Another aspect of the present invention is a solar cell; A cover glass positioned on the front portion of the solar cell where sunlight enters to protect the solar cell; And a coating layer positioned between the solar cell and the cover glass, wherein the coating layer provides a solar power module formed of the glass coating composition for the solar power module.
  • the composition of the present invention When the composition of the present invention is coated on the glass for a photovoltaic module, it may have excellent designability, and the transmittance of sunlight is improved compared to a conventional light-transmitting color member. It can solve the problem of deterioration. Therefore, the photovoltaic module can have aesthetics as a building exterior and at the same time improve the solar transmittance of the photovoltaic module, thereby improving the function as a photovoltaic power source.
  • FIG. 1 shows the appearances of Example 1 (right side of FIG. 1) and Comparative Example 2 (left side of FIG. 1) applied to glass A among the examples of the present invention.
  • FIG. 2 shows the appearances of Example 4 (right side of FIG. 2) and Comparative Example 3 (left side of FIG. 2) applied to glass B among the examples of the present invention.
  • the present invention provides a coating composition of a glass for a photovoltaic module for improving the transmittance of color glass for a photovoltaic module.
  • the present invention is a resin mixture comprising a main solution and a curing agent solution; And it provides a glass coating composition for a photovoltaic module comprising a pigment mixture comprising a coloring pigment and pearl pigments.
  • the subject solution may include at least one selected from the group consisting of urethane resin, fluorine resin, epoxy resin, styrene resin, acrylic resin, acrylic silicone resin, melamine resin and polyester resin, preferably urethane resin or fluorine It is resin.
  • the weight average molecular weight of the resin contained in the main solution is 20000 to 30000, preferably 25000 to 29000.
  • the weight average molecular weight is less than 20000, there may be a problem that ductility decreases due to a large amount of shrinkage during curing, and when it exceeds 30000, a high viscosity in solution may require a large amount of solvent.
  • the curing agent solution may include an aliphatic polyisocyanate or HDI trimer (Hexamethylene diisocyanate trimer, HDI trimer), preferably HDI trimer.
  • the mixing weight ratio of the main solution and the curing agent solution is 5: 1 to 1: 1, preferably 5: 1 to 3: 1, and most preferably 5: 1.
  • the content of the curing agent solution is relatively small compared to the main solution, so that the composition may not be cured in the glass for the photovoltaic module, and if less than 1: 1, the content of the curing agent solution is the main solution Compared to a relatively large number, the composition may be cured before being coated on the photovoltaic module glass.
  • the subject solution and curing agent solution of the present invention include a solvent, and the solvent may be an organic solvent, water, or a mixture thereof.
  • the organic solvent is toluene, xylene, ethyl acetate, butyl acetate, isobutyl acetate, ethylene glycol mono methyl ether, ethylene glycol mono ethyl ether, ethylene glycol mono butyl ether, ethylene glycol mono butyl ether, butyl acetate, ethylene glycol mono methyl Ether acetate, ethylene glycol mono ethyl ether acetate, acetone, methyl ethyl ketone (MEK), 1,4-dioxane, tetrahydrofuran (THF), methyl isobutyl ketone (MIBK), methanol, ethanol, n-butanol and cyclo It may be at least one selected from the group consisting of hexanol.
  • the water
  • the main solution may contain 8 to 28% by weight, preferably 10 to 20% by weight of the solvent.
  • the solvent of the main solution is less than 8% by weight, the viscosity of the main solution becomes high, and thus there is a problem that it is difficult to mix with the curing agent solution. There is a losing problem.
  • the curing agent solution may include 44 to 64% by weight, preferably 50 to 60% by weight of the solvent.
  • the solvent of the curing agent solution is less than 44, the viscosity of the curing agent solution becomes high, and thus, it is difficult to mix with the main solution, and when it exceeds 64% by weight, the thickness of the coating layer is thinned by evaporation of the solvent when forming the coating layer.
  • the pearl pigment of the present invention is 0.13 to 5.0 parts by weight, preferably 0.13 to 1.26 parts by weight, and most preferably 0.25 parts by weight based on 100 parts by weight of the main solution. If the pearl pigment is less than 0.13 parts by weight compared to 100 parts by weight of the main solution, there is a problem of poor design, and if it is 5.0 parts by weight or more, the viscosity of the composition may be increased, which may cause difficulty in coating operation or decrease the transmittance. .
  • a grated pearl pigment may be used, and when the grated pearl pigment is used, light is scattered, so that the transmittance of sunlight can be improved compared to the color glass for the conventional solar power module. .
  • the pearl pigment may be a pearl pigment coated with a metal oxide on a transparent support material.
  • a transparent support material natural or synthetic mica, glass flake, flake-type silicon dioxide, aluminum oxide, etc. may be used, and silicon dioxide, aluminum oxide, titanium oxide, zirconium oxide, zinc oxide, etc. may be used as the metal oxide.
  • the metal oxide may be coated with the desired thickness of the single layer or two or more layers on the transparent support material.
  • the coloring pigment of the present invention is 0.2 to 3.0 parts by weight, preferably 0.4 to 1.7 parts by weight relative to 100 parts by weight of the main solution. If the coloring pigment is less than 0.2 parts by weight compared to 100 parts by weight of the main solution, the light transmittance is improved, but the design of the photovoltaic module may be deteriorated due to the light color, and if the content exceeds 3.0 parts by weight, the color of the composition becomes clear Light transmittance may decrease.
  • the coloring pigment has at least one color selected from the group consisting of magenta, yellow, and cyan, and may be, for example, a blue coloring pigment obtained by mixing magenta and navy blue.
  • the coloring pigment may have a color mixed by varying the mixing ratio of the magenta, yellow, and navy blue, for example, may have a blue mixed with the magenta and navy blue in a 1: 1 weight ratio.
  • the present invention is a solar cell; A cover glass positioned on the front portion of the solar cell where sunlight enters to protect the solar cell; And a coating layer positioned between the solar cell and the cover glass, wherein the coating layer provides a solar power module formed of the glass coating composition for a solar power module of the present invention.
  • the thickness of the coating layer included in the solar power module is 20 to 60 ⁇ m, preferably 20 to 30 ⁇ m. When the thickness exceeds 60 ⁇ m, the light transmittance decreases with a thick coating, and thus the power generation amount may decrease. If the thickness is less than 20 ⁇ m, an uncoated portion may occur, resulting in poor designability.
  • the installation area of the solar cell module is not limited, but may be installed on the outer wall surface of the building, for example, may be installed on the roof of the building.
  • the photovoltaic module of the present invention When the photovoltaic module of the present invention is installed on the outer wall surface of a building, and the sunlight enters the photovoltaic module of the present invention, electricity is generated by the solar cell.
  • the exterior wall surface of the building in which the photovoltaic module is installed may be seen as the color of the coloring pigment included in the composition of the present invention.
  • a main solution in which 72% by weight of fluororesin (Fluoropolymer resin, weight average molecular weight 28761) and 28% by weight of butyl acetate were mixed; And a resin mixture in which a curing agent solution in which 46% by weight of HDI trimer and 54% by weight of butyl acetate was mixed in a weight ratio of 5: 1 based on the curing agent solution was prepared.
  • fluororesin Fluoropolymer resin, weight average molecular weight 28761
  • butyl acetate a resin mixture in which a curing agent solution in which 46% by weight of HDI trimer and 54% by weight of butyl acetate was mixed in a weight ratio of 5: 1 based on the curing agent solution was prepared.
  • a glass coating composition for a photovoltaic module was prepared by mixing a blue coloring pigment in the resin mixture with 0.4 parts by weight of 100 parts by weight of the main solution and 0.13 parts by weight of pearl pigment with respect to 100 parts by weight of the main solution.
  • the pearl pigment used is a color stream pigment from Merck, and a cobalt aluminate blue spinel was used as an inorganic pigment for the blue coloring pigment.
  • Example 1 it was carried out in the same manner as in Example 1, except that the blue pigment was not used and the pearl pigment was used at 0.42 parts by weight compared to 100 parts by weight of the main solution.
  • Example 1 1.7 parts by weight of the blue coloring pigment compared to 100 parts by weight of the main solution is used, and the pearl pigment is 0.25 parts by weight (Example 3) and 0.5 parts by weight (Example 4) compared to 100 parts by weight of the main solution. ) And 1.0 parts by weight (Example 5) was carried out in the same manner as in Example 1, except that it was used.
  • Example 1 the blue coloring pigment was used in the same manner as in Example 1, except that 1.0 part by weight of 100 parts by weight of the main solution was used, and the pearl pigment was 0.42 part by weight of 100 parts by weight of the main solution. .
  • Example 1 0.04 parts by weight (Comparative Example 1) and 0.4 parts by weight (Comparative Example 2) were used for the blue coloring pigment compared to 100 parts by weight of the main solution, except that the pearl pigment was not used. It carried out similarly to Example 1.
  • Example 1 the blue coloring pigment was used in the same manner as in Example 1, except that 1.7 parts by weight of 100 parts by weight of the main solution was used and the pearl pigment was not used.
  • Example 1 without using the blue coloring pigment, the pearl pigment was compared to 100 parts by weight of the main solution 5.0 parts by weight (Comparative Example 4), 10.0 parts by weight (Comparative Example 5) and 15.0 parts by weight (Comparative Example It was carried out in the same manner as in Example 1, except that 6) was used.
  • the coating compositions prepared in Examples 1 to 5 and Comparative Examples 1 to 5 were coated on glass for a solar power module, respectively, using a bar coater. After coating, the mixture was dried at room temperature of 20 to 25 ° C, and then dried to have a thickness of 50 ⁇ m.
  • a and B were used for the glass. Glass A is a commercially available glass, and Glass B is a special glass for photovoltaic cells.
  • Table 1 summarizes the transmittance when light is transmitted.
  • Example 3 and Example 5 were coated on glass B, and the thickness of the coating composition after drying was 50 ⁇ m and 100 ⁇ m, respectively.
  • Table 2 summarizes transmittance when light of 300 to 1200 nm and 400 to 800 nm is transmitted from the prepared coating layer.

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Abstract

The present invention relates to a composition for coating glass for a photovoltaic module and a photovoltaic module coated by the composition. Particularly, the present invention provides a composition for coating glass for a photovoltaic module, comprising: a resin mixture comprising a resin and a hardener; and a pigment mixture comprising a color pigment and a pearl pigment, and further provides a photovoltaic module comprising: solar cells; cover glass which is positioned on the front surface portions of the solar cells onto which sunlight is incident and protects the solar cells; and a coating layer disposed between the solar cells and the cover glass, wherein the coating layer is formed of the composition for coating glass for a photovoltaic module.

Description

태양광 발전모듈용 유리의 코팅을 위한 조성물 및 상기 조성물로 형성된 코팅층을 포함하는 태양광 발전모듈A photovoltaic module including a composition for coating a glass for a photovoltaic module and a coating layer formed of the composition
본 발명은 태양광 발전모듈용 유리의 코팅을 위한 조성물 및 상기 조성물로 형성된 코팅층을 포함하는 태양광 발전모듈에 관한 것이다.The present invention relates to a photovoltaic module including a composition for coating a glass for photovoltaic modules and a coating layer formed of the composition.
태양전지는 대부분이 전면에 충격, 먼지 등으로부터 모듈을 보호하기 위한 유리를 설치한다. 최근 건축물 외벽에 태양광 발전 설비를 설치할 경우, 태양광 발전 설비의 전면이 건물의 외관을 훼손하는 경우가 많다. 이는 태양광 발전 설비 내부의 태양전지의 형상 및 색상의 한계가 있기 때문이다. 따라서 종래의 태양광 발전 모듈은 일반적인 건축외장재와 같은 심미성이 뛰어난 외관을 확보하는 데 어려운 문제가 있다.Most of solar cells are equipped with glass to protect the module from shock and dust on the front. In recent years, when a solar power facility is installed on the outer wall of a building, the front surface of the solar power facility often damages the exterior of the building. This is because there is a limitation in the shape and color of the solar cell inside the photovoltaic power generation facility. Therefore, the conventional photovoltaic power generation module has a problem in that it is difficult to secure an excellent aesthetic appearance, such as a general building exterior material.
상기와 같은 문제를 해결하기 위해 최근 의장성이 우수한 태양전지 모듈을 개발하기 위한 연구가 활발하다. 이에 한국등록특허 제10-1700379호와 같이 태양 전지와 커버 유리사이에 빛을 투과시키면서 컬러를 반사시키는 빛 투과 컬러부재를 포함하는 컬러태양전지 모듈이 연구되며, 이를 통해 의장성이 우수한 태양전지 모듈을 개발하고 있다.In order to solve the above problems, research has been actively conducted to develop a solar cell module having excellent designability. Accordingly, as described in Korean Patent No. 10-1700379, a color solar cell module including a light transmitting color member that reflects color while transmitting light between a solar cell and a cover glass is studied, and through this, a solar cell module having excellent designability Develop.
그러나, 상기 발명은 상기 빛 투과 컬러부재로 인해, 태양광의 투과율이 떨어지는 문제가 있다. 따라서, 투과율을 높일 수 있는 빛 투과 컬러부재를 개발한다면, 다양한 컬러를 가지며 높은 태양광 투과율을 가진 태양광 전지가 사용될 수 있을 것으로 기대된다.However, the present invention has a problem that the transmittance of sunlight falls due to the light transmitting color member. Therefore, if a light-transmitting color member capable of increasing transmittance is developed, it is expected that a solar cell having various colors and having high solar transmittance can be used.
본 발명의 한 측면은 수지 혼합물 및 안료 혼합물을 포함하는 태양광 발전모듈용 유리 코팅 조성물을 제공하는 것이다.One aspect of the present invention is to provide a glass coating composition for a solar power module comprising a resin mixture and a pigment mixture.
본 발명의 다른 측면은 상기 태양광 발전모듈용 유리 코팅 조성물로 형성된 코팅층을 포함하는 태양광 발전모듈을 제공하는 것이다.Another aspect of the present invention is to provide a solar power module comprising a coating layer formed of the glass coating composition for the solar power module.
본 발명의 일 견지는 주제 용액 및 경화제 용액을 포함하는 수지 혼합물; 및 채색 안료 및 펄 안료를 포함하는 안료 혼합물을 포함하는 태양광 발전모듈용 유리 코팅 조성물을 제공한다.One aspect of the present invention is a resin mixture comprising a main solution and a curing agent solution; And it provides a glass coating composition for a photovoltaic module comprising a pigment mixture comprising a coloring pigment and pearl pigments.
본 발명의 다른 견지는 태양전지; 상기 태양전지의 태양광이 입사하는 전면부에 위치하여 태양전지를 보호하는 커버유리; 및 상기 태양전지와 커버유리 사이에 위치하는 코팅층을 포함하며, 상기 코팅층은 상기 태양광 발전모듈용 유리 코팅 조성물로 형성된 태양광 발전모듈을 제공한다.Another aspect of the present invention is a solar cell; A cover glass positioned on the front portion of the solar cell where sunlight enters to protect the solar cell; And a coating layer positioned between the solar cell and the cover glass, wherein the coating layer provides a solar power module formed of the glass coating composition for the solar power module.
본 발명의 조성물을 태양광 발전모듈용 유리에 코팅할 경우, 우수한 의장성을 가질 수 있으며, 종래 빛 투과 컬러부재에 비해 태양광의 투과율이 향상되어 태양광 발전모듈용 유리 코팅 시 태양광 발전효율이 저하되는 문제를 해결할 수 있다. 따라서, 태양광 발전모듈이 건축 외장재로서 심미성을 갖춤과 동시에 상기 태양광 발전모듈의 태양광 투과율을 향상시킬 수 있어, 태양광 발전원으로서의 기능을 향상시킬 수 있다.When the composition of the present invention is coated on the glass for a photovoltaic module, it may have excellent designability, and the transmittance of sunlight is improved compared to a conventional light-transmitting color member. It can solve the problem of deterioration. Therefore, the photovoltaic module can have aesthetics as a building exterior and at the same time improve the solar transmittance of the photovoltaic module, thereby improving the function as a photovoltaic power source.
도 1은 본 발명의 실시예 중 유리 A에 도포된 실시예1(도 1의 우측) 및 비교예2(도 1의 좌측)의 외관을 나타낸다.FIG. 1 shows the appearances of Example 1 (right side of FIG. 1) and Comparative Example 2 (left side of FIG. 1) applied to glass A among the examples of the present invention.
도 2는 본 발명의 실시예 중 유리 B에 도포된 실시예4(도 2의 우측) 및 비교예3(도 2의 좌측)의 외관을 나타낸다.FIG. 2 shows the appearances of Example 4 (right side of FIG. 2) and Comparative Example 3 (left side of FIG. 2) applied to glass B among the examples of the present invention.
도 3은 본 발명의 실시예 중 유리에 도포된 비교예 3의 단면도를 SEM으로 촬영한 이미지이며, (b)는 (a)를 2배 확대한 이미지를 나타낸다.3 is an image taken by SEM of a cross-sectional view of Comparative Example 3 applied to glass among the examples of the present invention, and (b) shows an image in which (a) is doubled.
이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시 형태를 설명한다. 그러나, 본 발명의 실시 형태는 여러 가지 다른 형태로 변형될 수 있으며, 본 발명의 범위가 이하 설명하는 실시 형태로 한정되는 것은 아니다. Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, embodiments of the present invention may be modified in various other forms, and the scope of the present invention is not limited to the embodiments described below.
본 발명은 태양광 발전모듈용 컬러 유리의 투과율을 향상시키기 위한 태양광발전모듈용 유리의 코팅 조성물을 제공한다. The present invention provides a coating composition of a glass for a photovoltaic module for improving the transmittance of color glass for a photovoltaic module.
상세하게, 본 발명은 주제 용액 및 경화제 용액을 포함하는 수지 혼합물; 및 채색 안료 및 펄 안료를 포함하는 안료 혼합물을 포함하는 태양광 발전모듈용 유리 코팅 조성물을 제공한다.Specifically, the present invention is a resin mixture comprising a main solution and a curing agent solution; And it provides a glass coating composition for a photovoltaic module comprising a pigment mixture comprising a coloring pigment and pearl pigments.
상기 주제 용액은 우레탄 수지, 불소 수지, 에폭시 수지, 스티렌 수지, 아크릴 수지, 아크릴 실리콘 수지, 멜라민 수지 및 폴리에스테르 수지로 이루어진 군으로부터 선택되는 적어도 하나를 포함할 수 있으며, 바람직하게는 우레탄 수지 또는 불소 수지이다. The subject solution may include at least one selected from the group consisting of urethane resin, fluorine resin, epoxy resin, styrene resin, acrylic resin, acrylic silicone resin, melamine resin and polyester resin, preferably urethane resin or fluorine It is resin.
상기 주제용액에 포함된 수지의 중량평균분자량은 20000 내지 30000, 바람직하게는 25000 내지 29000이다. 중량평균분자량이 20000 미만인 경우 경화 시 수축을 많아하여 연성이 작아지는 문제가 생길 수 있으며, 30000을 초과하는 경우 용액상태에서 점도가 높아져 많은 양의 용매가 필요할 수 있다. The weight average molecular weight of the resin contained in the main solution is 20000 to 30000, preferably 25000 to 29000. When the weight average molecular weight is less than 20000, there may be a problem that ductility decreases due to a large amount of shrinkage during curing, and when it exceeds 30000, a high viscosity in solution may require a large amount of solvent.
한편, 상기 경화제 용액은 지방족 폴리이소시아네이트 또는 HDI 트리머(Hexamethylene diisocyanate trimer, HDI trimer)를 포함할 수 있으며, 바람직하게는 HDI trimer이다.On the other hand, the curing agent solution may include an aliphatic polyisocyanate or HDI trimer (Hexamethylene diisocyanate trimer, HDI trimer), preferably HDI trimer.
상기 주제 용액 및 경화제 용액의 혼합 중량비는 5:1 내지 1:1, 바람직하게는 5:1 내지 3:1, 가장 바람직하게는 5:1이다. 상기 혼합 중량비가 5:1을 초과하는 경우 경화제 용액의 함량이 주제 용액에 비해 상대적으로 적어 태양광 발전모듈용 유리에 조성물이 경화되지 않을 수 있으며, 1:1 미만인 경우 경화제 용액의 함량이 주제 용액에 비해 상대적으로 많아 태양광 발전모듈용 유리에 코팅되기 전에 조성물이 경화될 수 있다.The mixing weight ratio of the main solution and the curing agent solution is 5: 1 to 1: 1, preferably 5: 1 to 3: 1, and most preferably 5: 1. When the mixed weight ratio exceeds 5: 1, the content of the curing agent solution is relatively small compared to the main solution, so that the composition may not be cured in the glass for the photovoltaic module, and if less than 1: 1, the content of the curing agent solution is the main solution Compared to a relatively large number, the composition may be cured before being coated on the photovoltaic module glass.
본 발명의 주제 용액 및 경화제 용액은 용매를 포함하며, 상기 용매는 유기 용제, 물 또는 이들의 혼합을 사용할 수 있다. 상기 유기 용제는 톨루엔, 자일렌, 초산에틸, 초산 부틸, 초산 이소부틸, 에틸렌글리콜모노 메틸에테르, 에틸렌글리콜모노 에틸에테르, 에틸렌글리콜모노 부틸 에테르, 에틸렌글리콜모노 부틸 에테르, 부틸 아세테이트, 에틸렌글리콜모노 메틸에테르 아세테이트, 에틸렌글리콜모노 에틸에테르 아세테이트, 아세톤, 메틸 에틸 케톤(MEK), 1,4-디옥산, 테트라하이드로퓨란(THF), 메틸 이소부틸케톤(MIBK), 메탄올, 에탄올, n-부탄올 및 사이클로헥산올로 이루어진 군으로부터 선택되는 적어도 하나일 수 있다. 나아가 상기 물은 정제수, 수도 용수, 공업용수 등 임의의 물을 사용할 수 있다. The subject solution and curing agent solution of the present invention include a solvent, and the solvent may be an organic solvent, water, or a mixture thereof. The organic solvent is toluene, xylene, ethyl acetate, butyl acetate, isobutyl acetate, ethylene glycol mono methyl ether, ethylene glycol mono ethyl ether, ethylene glycol mono butyl ether, ethylene glycol mono butyl ether, butyl acetate, ethylene glycol mono methyl Ether acetate, ethylene glycol mono ethyl ether acetate, acetone, methyl ethyl ketone (MEK), 1,4-dioxane, tetrahydrofuran (THF), methyl isobutyl ketone (MIBK), methanol, ethanol, n-butanol and cyclo It may be at least one selected from the group consisting of hexanol. Further, the water may be any water, such as purified water, water for water, industrial water.
본 발명에 있어서, 주제 용액의 중량을 기준으로, 상기 주제 용액은 용매를 8 내지 28중량%, 바람직하게는 10 내지 20중량%포함할 수 있다. 이 때, 상기 주제 용액의 용매가 8중량% 미만인 경우 주제 용액의 점도가 높아져 경화제 용액과 혼합이 어려운 문제가 있고, 28중량%를 초과하는 경우 코팅층 형성 시 용매의 증발에 의해 코팅층의 두께가 얇아지는 문제가 있다.In the present invention, based on the weight of the main solution, the main solution may contain 8 to 28% by weight, preferably 10 to 20% by weight of the solvent. At this time, when the solvent of the main solution is less than 8% by weight, the viscosity of the main solution becomes high, and thus there is a problem that it is difficult to mix with the curing agent solution. There is a losing problem.
나아가, 경화제 용액의 중량을 기준으로, 상기 경화제 용액은 용매를 44 내지 64 중량%, 바람직하게는 50 내지 60중량% 포함할 수 있다. 상기 경화제 용액의 용매가 44 미만인 경우 경화제 용액의 점도가 높아져 주제 용액과 혼합이 어려운 문제가 있고, 64중량%를 초과하는 경우 코팅층 형성 시 용매의 증발에 의해 코팅층의 두께가 얇아지는 문제가 있다. Furthermore, based on the weight of the curing agent solution, the curing agent solution may include 44 to 64% by weight, preferably 50 to 60% by weight of the solvent. When the solvent of the curing agent solution is less than 44, the viscosity of the curing agent solution becomes high, and thus, it is difficult to mix with the main solution, and when it exceeds 64% by weight, the thickness of the coating layer is thinned by evaporation of the solvent when forming the coating layer.
본 발명의 상기 펄 안료는 상기 주제 용액 100중량부 대비 0.13 내지 5.0중량부 미만, 바람직하게는 0.13 내지 1.26중량부 미만, 가장 바람직하게는 0.25중량부이다. 상기 펄 안료가 상기 주제 용액 100중량부 대비 0.13중량부 미만인 경우 의장성이 떨어지는 문제가 있으며, 5.0중량부 이상인 경우 조성물의 점도가 높아져, 코팅 작업에 어려움이 있을 수 있거나, 투과율이 감소할 수 있다.The pearl pigment of the present invention is 0.13 to 5.0 parts by weight, preferably 0.13 to 1.26 parts by weight, and most preferably 0.25 parts by weight based on 100 parts by weight of the main solution. If the pearl pigment is less than 0.13 parts by weight compared to 100 parts by weight of the main solution, there is a problem of poor design, and if it is 5.0 parts by weight or more, the viscosity of the composition may be increased, which may cause difficulty in coating operation or decrease the transmittance. .
본 발명의 펄 안료는 그레이팅(grating)된 펄 안료를 사용할 수 있으며, 상기 그레이팅된 펄 안료를 사용할 경우, 빛이 산란되므로 기존의 태양광 발전모듈용 컬러 유리에 비해 태양광의 투과율을 향상시킬 수 있다.As the pearl pigment of the present invention, a grated pearl pigment may be used, and when the grated pearl pigment is used, light is scattered, so that the transmittance of sunlight can be improved compared to the color glass for the conventional solar power module. .
또한, 상기 펄 안료는 투명 지지 재료에 금속 산화물이 피막된 펄 안료를 사용할 수 있다. 상기 투명 지지 재료로서 천연 또는 합성 운모, 유리 박편, 박편형 이산화규소, 산화알루미늄 등을 사용할 수 있으며, 상기 금속 산화물로서 이산화규소, 산화알루미늄, 산화티탄, 산화 지르코늄, 산화아연 등을 사용할 수 있다. 이 때, 상기 금속 산화물은 상기 투명 지지 재료에 단층 또는 2층 이상의 원하는 막 두께로 피막될 수 있다.In addition, the pearl pigment may be a pearl pigment coated with a metal oxide on a transparent support material. As the transparent support material, natural or synthetic mica, glass flake, flake-type silicon dioxide, aluminum oxide, etc. may be used, and silicon dioxide, aluminum oxide, titanium oxide, zirconium oxide, zinc oxide, etc. may be used as the metal oxide. At this time, the metal oxide may be coated with the desired thickness of the single layer or two or more layers on the transparent support material.
본 발명의 상기 채색안료는 상기 주제 용액 100중량부 대비 0.2 내지 3.0중량부, 바람직하게는 0.4 내지 1.7중량부이다. 상기 채색안료가 상기 주제 용액 100중량부 대비 0.2중량부 미만인 경우 빛의 투과율은 좋아지나, 색상이 옅어 태양광 발전모듈의 의장성이 떨어질 수 있으며, 3.0중량부를 초과하는 경우 조성물의 색상이 뚜렷해져 빛의 투과율이 감소할 수 있다.The coloring pigment of the present invention is 0.2 to 3.0 parts by weight, preferably 0.4 to 1.7 parts by weight relative to 100 parts by weight of the main solution. If the coloring pigment is less than 0.2 parts by weight compared to 100 parts by weight of the main solution, the light transmittance is improved, but the design of the photovoltaic module may be deteriorated due to the light color, and if the content exceeds 3.0 parts by weight, the color of the composition becomes clear Light transmittance may decrease.
상기 채색안료는 자홍색(magenta), 노란색(yellow) 및 남색(cyan)으로 이루어진 군으로부터 선택되는 적어도 하나의 색을 가지며, 예를 들어 자홍색과 남색을 혼합한 청색의 채색안료일 수 있다.The coloring pigment has at least one color selected from the group consisting of magenta, yellow, and cyan, and may be, for example, a blue coloring pigment obtained by mixing magenta and navy blue.
상기 채색안료는 상기 자홍색, 노란색 및 남색의 배합비를 달리하여 혼합한 색을 가질 수 있으며, 예를 들어 상기 자홍색과 남색을 1:1 중량비로 혼합한 청색을 가질 수 있다. The coloring pigment may have a color mixed by varying the mixing ratio of the magenta, yellow, and navy blue, for example, may have a blue mixed with the magenta and navy blue in a 1: 1 weight ratio.
본 발명은 태양전지; 상기 태양전지의 태양광이 입사하는 전면부에 위치하여 태양전지를 보호하는 커버유리; 및 상기 태양전지와 커버유리 사이에 위치하는 코팅층을 포함하며, 상기 코팅층은 본 발명의 태양광 발전모듈용 유리 코팅 조성물로 형성된 태양광 발전모듈을 제공한다.The present invention is a solar cell; A cover glass positioned on the front portion of the solar cell where sunlight enters to protect the solar cell; And a coating layer positioned between the solar cell and the cover glass, wherein the coating layer provides a solar power module formed of the glass coating composition for a solar power module of the present invention.
상기 태양광 발전모듈에 포함된 코팅층의 두께는 20 내지 60㎛, 바람직하게는 20 내지 30㎛이다. 상기 두께가 60㎛를 초과하는 경우 두꺼운 코팅으로 빛의 투과율이 감소하여 발전량이 감소할 수 있으며, 20㎛ 미만인 경우 코팅되지 않은 부위가 생길 수 있어, 의장성이 떨어지는 문제가 있다.The thickness of the coating layer included in the solar power module is 20 to 60㎛, preferably 20 to 30㎛. When the thickness exceeds 60 μm, the light transmittance decreases with a thick coating, and thus the power generation amount may decrease. If the thickness is less than 20 μm, an uncoated portion may occur, resulting in poor designability.
상기 태양 전지 모듈은 설치 지역이 한정되지 않으나, 건축물의 외벽면에 설치될 수 있으며, 예를 들어 건축물의 옥상에 설치될 수도 있다. 본 발명의 태양광 발전모듈을 건축물의 외벽면에 설치한 상태에서 태양광이 본 발명의 태양광 발전모듈에 입사되면 태양전지에 의해 전기를 발생시킨다. 이 때, 상기 태양광 발전모듈이 설치된 건물의 외벽면은 본 발명의 조성물에 포함되는 채색안료의 색으로 보일 수 있다.The installation area of the solar cell module is not limited, but may be installed on the outer wall surface of the building, for example, may be installed on the roof of the building. When the photovoltaic module of the present invention is installed on the outer wall surface of a building, and the sunlight enters the photovoltaic module of the present invention, electricity is generated by the solar cell. At this time, the exterior wall surface of the building in which the photovoltaic module is installed may be seen as the color of the coloring pigment included in the composition of the present invention.
이하, 구체적인 실시예를 통해 본 발명을 보다 구체적으로 설명한다. 하기 실시예는 본 발명의 이해를 돕기 위한 예시에 불과하며, 본 발명의 범위가 이에 한정되는 것은 아니다.Hereinafter, the present invention will be described in more detail through specific examples. The following examples are only examples for helping the understanding of the present invention, and the scope of the present invention is not limited thereto.
실시예Example
실시예1Example 1
주제 용액을 기준으로, 불소 수지(Fluoropolymer resin, 중량평균분자량 28761) 72중량% 및 부틸 아세테이트 28중량%를 혼합한 주제 용액; 및 경화제 용액을 기준으로 HDI 트리머(HDI trimer) 46중량% 및 부틸 아세테이트 54중량%를 혼합한 경화제 용액을 5:1의 중량비로 혼합한 수지 혼합물을 제조하였다.Based on the main solution, a main solution in which 72% by weight of fluororesin (Fluoropolymer resin, weight average molecular weight 28761) and 28% by weight of butyl acetate were mixed; And a resin mixture in which a curing agent solution in which 46% by weight of HDI trimer and 54% by weight of butyl acetate was mixed in a weight ratio of 5: 1 based on the curing agent solution was prepared.
상기 수지 혼합물에 청색의 채색안료를 상기 주제 용액 100 중량부 대비 0.4중량부 및 펄 안료를 상기 주제 용액 100중량부 대비 0.13중량부를 혼합하여 태양광 발전모듈용 유리 코팅 조성물을 제조하였다. A glass coating composition for a photovoltaic module was prepared by mixing a blue coloring pigment in the resin mixture with 0.4 parts by weight of 100 parts by weight of the main solution and 0.13 parts by weight of pearl pigment with respect to 100 parts by weight of the main solution.
이 때, 사용되는 펄 안료는 Merck사 컬러 스트림(color stream) 안료이며, 청색의 채색안료는 무기안료로 코발트 알루미네이트 블루 스피넬(cobalt aluminate blue spinel)을 사용하였다.At this time, the pearl pigment used is a color stream pigment from Merck, and a cobalt aluminate blue spinel was used as an inorganic pigment for the blue coloring pigment.
실시예2Example 2
상기 실시예1에서, 상기 청색안료를 사용하지 않고, 상기 펄 안료를 주제 용액 100중량부 대비 0.42중량부를 사용한 것을 제외하고는 실시예1과 동일하게 실시하였다.In Example 1, it was carried out in the same manner as in Example 1, except that the blue pigment was not used and the pearl pigment was used at 0.42 parts by weight compared to 100 parts by weight of the main solution.
실시예3 내지 5Examples 3 to 5
상기 실시예1에서, 상기 청색의 채색안료를 주제 용액 100중량부 대비 1.7중량부를 사용하고, 상기 펄 안료는 주제 용액 100중량부 대비 0.25중량부(실시예3), 0.5중량부(실시예4) 및 1.0중량부(실시예5) 사용한 것을 제외하고는 실시예1과 동일하게 실시하였다.In Example 1, 1.7 parts by weight of the blue coloring pigment compared to 100 parts by weight of the main solution is used, and the pearl pigment is 0.25 parts by weight (Example 3) and 0.5 parts by weight (Example 4) compared to 100 parts by weight of the main solution. ) And 1.0 parts by weight (Example 5) was carried out in the same manner as in Example 1, except that it was used.
실시예 6Example 6
상기 실시예1에서, 상기 청색의 채색안료를 주제 용액 100중량부 대비 1.0중량부를 사용하고, 상기 펄 안료는 주제 용액 100중량부 대비 0.42중량부를 사용한 것을 제외하고는 실시예1과 동일하게 실시하였다.In Example 1, the blue coloring pigment was used in the same manner as in Example 1, except that 1.0 part by weight of 100 parts by weight of the main solution was used, and the pearl pigment was 0.42 part by weight of 100 parts by weight of the main solution. .
비교예1 및 2Comparative Examples 1 and 2
상기 실시예1에서, 상기 청색의 채색안료를 주제 용액 100중량부 대비 0.04중량부(비교예1) 및 0.4중량부(비교예2)를 사용하고, 상기 펄 안료는 사용하지 않는 것을 제외하고는 실시예1과 동일하게 실시하였다.In Example 1, 0.04 parts by weight (Comparative Example 1) and 0.4 parts by weight (Comparative Example 2) were used for the blue coloring pigment compared to 100 parts by weight of the main solution, except that the pearl pigment was not used. It carried out similarly to Example 1.
비교예3 Comparative Example 3
상기 실시예1에서, 상기 청색의 채색안료를 주제 용액 100중량부 대비 1.7중량부를 사용하고, 상기 펄 안료는 사용하지 않는 것을 제외하고는 실시예1과 동일하게 실시하였다. In Example 1, the blue coloring pigment was used in the same manner as in Example 1, except that 1.7 parts by weight of 100 parts by weight of the main solution was used and the pearl pigment was not used.
비교예 4 내지 6Comparative Examples 4 to 6
상기 실시예1에서, 상기 청색의 채색안료를 사용하지 않고, 상기 펄 안료를 주제 용액 100중량부 대비 5.0중량부(비교예4), 10.0중량부(비교예5) 및 15.0중량부(비교예6)를 사용한 것을 제외하고는 실시예1과 동일하게 실시하였다.In Example 1, without using the blue coloring pigment, the pearl pigment was compared to 100 parts by weight of the main solution 5.0 parts by weight (Comparative Example 4), 10.0 parts by weight (Comparative Example 5) and 15.0 parts by weight (Comparative Example It was carried out in the same manner as in Example 1, except that 6) was used.
실험예1Experimental Example 1
상기 실시예1 내지 5 및 비교예1 내지 5에서 제조된 코팅 조성물을 각각 바코터(bar coater)를 이용하여, 태양광 발전 모듈용 유리에 코팅하였다. 코팅 후 20 내지 25℃의 상온에서 건조하여 건조 후 두께가 50㎛가 되도록 하였다. 상기 유리는 A 및 B를 사용하였다. 유리A는 시중에서 사용되는 일반 유리이며, 유리 B는 태양광 전지용 특수 유리를 사용하였다.The coating compositions prepared in Examples 1 to 5 and Comparative Examples 1 to 5 were coated on glass for a solar power module, respectively, using a bar coater. After coating, the mixture was dried at room temperature of 20 to 25 ° C, and then dried to have a thickness of 50 μm. A and B were used for the glass. Glass A is a commercially available glass, and Glass B is a special glass for photovoltaic cells.
상기 유리 A에 실시예1, 2 및 비교예1, 2를 각각 코팅하고, 유리 B에 실시예3 내지 6 및 비교예3 내지 6을 각각 코팅한 뒤, 300 내지 1200nm 파장 및 400 내지 800nm 파장의 빛을 투과한 경우의 투과율을 표 1에 정리하였다.After coating each of Examples 1 and 2 and Comparative Examples 1 and 2 on the glass A, and coating the Examples 3 to 6 and Comparative Examples 3 to 6 on the glass B, respectively, after 300 to 1200 nm wavelength and 400 to 800 nm wavelength, Table 1 summarizes the transmittance when light is transmitted.
청색안료(주제 용액 100중량부 대비 중량부)Blue pigment (part by weight compared to 100 parts by weight of the subject solution) 펄 안료(주제 용액 100중량부 대비 중량부)Pearl pigment (parts by weight compared to 100 parts by weight of the subject solution) 300-1200nm 파장의 평균 투과율(%)Average transmittance (%) of 300-1200nm wavelength 400-800nm 파장의 평균 투과율(%)Average transmittance (%) of 400-800nm wavelength
유리AGlass A -- -- 80.8580.85 88.3988.39
유리A +비교예1Glass A + Comparative Example 1 0.040.04 -- 79.1779.17 86.2586.25
유리A +비교예2Glass A + Comparative Example 2 0.40.4 -- 76.7376.73 81.1781.17
유리A +실시예1Glass A + Example 1 0.40.4 0.130.13 79.3179.31 86.5886.58
유리A +실시예2Glass A + Example 2 -- 0.420.42 79.3979.39 87.1487.14
유리 BGlass B -- -- 86.4586.45 91.4391.43
유리 B +비교예3Glass B + Comparative Example 3 1.71.7 -- 79.8479.84 82.1282.12
유리 B +실시예3Glass B + Example 3 1.71.7 0.250.25 80.9580.95 83.9483.94
유리 B +실시예4Glass B + Example 4 1.71.7 0.50.5 80.3580.35 83.4383.43
유리 B +실시예5Glass B + Example 5 1.71.7 1.01.0 79.0879.08 82.3582.35
유리 B +실시예6Glass B + Example 6 1.01.0 0.420.42 80.0680.06 83.3683.36
유리 B +비교예4Glass B + Comparative Example 4 -- 5.05.0 74.8974.89 80.1980.19
유리 B +비교예5Glass B + Comparative Example 5 -- 10.010.0 66.1466.14 71.7971.79
유리 B +비교예6Glass B + Comparative Example 6 -- 15.015.0 51.8951.89 58.2058.20
상기 표1에 보여지는 바와 같이, 상기 청색 안료가 주제 용액 100중량부 대비 0.4중량부일 경우에 비해, 상기 펄 안료를 주제 용액 100중량부 대비 0.13중량부 또는 0.42중량부를 더 첨가할 경우 300-1200nm 및 400-800nm 파장의 빛에서의 투과율이 더욱 증가하였음을 알 수 있었다. 나아가, 상기 청색 안료가 주제 용액 100중량부 대비 1.7중량부일 경우에 비해, 상기 펄 안료를 주제 용액 100중량부 대비 0.25중량부, 0.5중량부 및 1.0중량부를 더 첨가할 경우 300-1200nm 및 400-800nm 파장을 갖는 빛에서의 투과율이 더욱 증가하였다.As shown in Table 1, compared to the case where the blue pigment is 0.4 parts by weight compared to 100 parts by weight of the main solution, when the pearl pigment is added 0.13 parts by weight or 0.42 parts by weight compared to 100 parts by weight of the main solution, 300-1200nm And it was found that the transmittance in the light of 400-800nm wavelength was further increased. Furthermore, compared to the case where the blue pigment is 1.7 parts by weight compared to 100 parts by weight of the main solution, when the pearl pigment is further added 0.25 parts by weight, 0.5 parts by weight and 1.0 parts by weight compared to 100 parts by weight of the main solution, 300-1200nm and 400- The transmittance was further increased in light having a wavelength of 800 nm.
실험예2Experimental Example 2
태양광 발전모듈용 유리에 코팅된 본 발명의 코팅 조성물의 건조 후 두께에 따른 빛의 투과율을 측정하였다. 상기 실험예1과 동일하게 수행하되, 유리B에 실시예3 및 실시예5를 코팅하였으며, 코팅 조성물의 건조 후 두께가 각각 50㎛ 및 100㎛가 되도록 코팅하였다. 제조된 코팅층에서 300 내지 1200nm 파장 및 400 내지 800nm 파장의 빛을 투과한 경우의 투과율을 표 2에 정리하였다.After drying the coating composition of the present invention coated on a glass for a solar power module, the transmittance of light according to the thickness was measured. The same procedure as in Experimental Example 1 was carried out, but Example 3 and Example 5 were coated on glass B, and the thickness of the coating composition after drying was 50 μm and 100 μm, respectively. Table 2 summarizes transmittance when light of 300 to 1200 nm and 400 to 800 nm is transmitted from the prepared coating layer.
청색안료(주제 용액 100중량부 대비 중량부)Blue pigment (part by weight compared to 100 parts by weight of the subject solution) 펄 안료(주제 용액 100중량부 대비 중량부)Pearl pigment (parts by weight compared to 100 parts by weight of the subject solution) 300-1200nm 파장의 평균 투과율(%)Average transmittance (%) of 300-1200nm wavelength 400-800nm 파장의 평균 투과율(%)Average transmittance (%) of 400-800nm wavelength
유리 BGlass B -- -- 86.4586.45 91.4391.43
유리 B +실시예3 (50㎛)Glass B + Example 3 (50 μm) 1.71.7 0.250.25 80.9580.95 83.9483.94
유리 B +실시예3 (100㎛)Glass B + Example 3 (100 μm) 1.71.7 0.250.25 69.0469.04 67.7167.71
유리 B +실시예5 (50㎛)Glass B + Example 5 (50 μm) 1.71.7 1.01.0 79.0879.08 82.3582.35
유리 B +실시예5 (100㎛)Glass B + Example 5 (100 μm) 1.71.7 1.01.0 64.2364.23 63.1463.14
상기 표 2에 보이는 바와 같이, 코팅층의 두께가 두꺼워 질수록 빛의 평균 투과율은 현저히 감소하는 것을 확인할 수 있었다.이상에서 본 발명의 실시예에 대하여 상세하게 설명하였지만 본 발명의 권리범위는 이에 한정되는 것은 아니고, 청구범위에 기재된 본 발명의 기술적 사상을 벗어나지 않는 범위 내에서 다양한 수정 및 변형이 가능하다는 것은 당 기술분야의 통상의 지식을 가진 자에게는 자명할 것이다.As shown in Table 2, it was confirmed that as the thickness of the coating layer became thicker, the average transmittance of the light was significantly reduced. It will be apparent to those skilled in the art that various modifications and variations are possible without departing from the technical spirit of the present invention as set forth in the claims.

Claims (12)

  1. 주제 용액 및 경화제 용액을 포함하는 수지 혼합물; 및A resin mixture comprising a main solution and a curing agent solution; And
    채색 안료 및 펄 안료를 포함하는 안료 혼합물을 포함하는, 태양광 발전모듈용 유리 코팅 조성물.A glass coating composition for a solar power module, comprising a pigment mixture comprising a coloring pigment and a pearl pigment.
  2. 제1항에 있어서, 상기 주제 용액은 우레탄 수지, 불소 수지, 에폭시 수지, 스티렌 수지, 아크릴 수지, 아크릴 실리콘 수지, 멜라민 수지 및 폴리에스테르 수지로 이루어진 군으로부터 선택되는 적어도 하나를 포함하는, 태양광 발전모듈용 유리 코팅 조성물. According to claim 1, wherein the subject solution comprises at least one selected from the group consisting of urethane resin, fluorine resin, epoxy resin, styrene resin, acrylic resin, acrylic silicone resin, melamine resin and polyester resin, solar power Glass coating composition for modules.
  3. 제1항에 있어서, 상기 경화제 용액은 지방족 폴리이소시아네이트 또는 HDI 트리머(HDI trimer)를 포함하는, 태양광 발전모듈용 유리 코팅 조성물. The glass coating composition of claim 1, wherein the curing agent solution comprises an aliphatic polyisocyanate or an HDI trimer.
  4. 제1항에 있어서, 주제 용액 및 경화제 용액의 혼합 중량비는 5:1 내지 1:1인, 태양광 발전모듈용 유리 코팅 조성물.According to claim 1, Mixing weight ratio of the main solution and the curing agent solution is 5: 1 to 1: 1, the glass coating composition for a solar power module.
  5. 제1항에 있어서, 주제 용액 및 경화제 용액은 유기 용제, 물 또는 이들의 혼합인 용매를 포함하는, 태양광 발전모듈용 유리 코팅 조성물.The glass coating composition for a photovoltaic module according to claim 1, wherein the main solution and the curing agent solution include an organic solvent, water, or a mixture thereof.
  6. 제5항에 있어서, 상기 주제 용액의 중량을 기준으로, 상기 주제 용액은 용매를 8 내지 28중량% 포함하는, 태양광 발전모듈용 유리 코팅 조성물.According to claim 5, Based on the weight of the main solution, the main solution comprises 8 to 28% by weight of a solvent, a glass coating composition for a solar power module.
  7. 제5항에 있어서, 상기 경화제 용액의 중량을 기준으로, 상기 경화제 용액은 용매를 44 내지 64중량% 포함하는, 태양광 발전모듈용 유리 코팅 조성물.According to claim 5, Based on the weight of the curing agent solution, the curing agent solution comprises 44 to 64% by weight of a solvent, a glass coating composition for a solar power module.
  8. 제1항에 있어서, 상기 펄 안료는 상기 주제 용액 100중량부 대비 0.13 내지 5.0중량부 미만인, 태양광 발전모듈용 유리 코팅 조성물.According to claim 1, The pearl pigment is less than 0.13 to 5.0 parts by weight compared to 100 parts by weight of the main solution, a glass coating composition for a solar power module.
  9. 제1항에 있어서, 상기 채색안료는 상기 주제 용액 100중량부 대비 0.2 내지 3.0중량부인, 태양광 발전모듈용 유리 코팅 조성물.The glass coating composition of claim 1, wherein the coloring pigment is 0.2 to 3.0 parts by weight based on 100 parts by weight of the main solution.
  10. 제1항에 있어서, 상기 채색안료는 자홍색(magenta), 노란색(yellow) 및 남색(cyan)으로 이루어진 군으로부터 선택되는 적어도 하나의 색을 가지는, 태양광 발전모듈용 유리 코팅 조성물.The glass coating composition of claim 1, wherein the coloring pigment has at least one color selected from the group consisting of magenta, yellow, and cyan.
  11. 태양전지;Solar cells;
    상기 태양전지의 태양광이 입사하는 전면부에 위치하여 태양전지를 보호하는 커버유리; 및A cover glass positioned on the front portion of the solar cell where sunlight enters to protect the solar cell; And
    상기 태양전지와 커버유리 사이에 위치하며, 제1항 내지 제10항 중 어느 한 항의 조성물로 형성된 코팅층을 포함하는, 태양광 발전모듈.Located between the solar cell and the cover glass, comprising a coating layer formed of the composition of any one of claims 1 to 10, PV module.
  12. 제11항에 있어서, 상기 코팅층의 두께는 20 내지 60㎛ 인, 태양광 발전모듈.According to claim 11, The thickness of the coating layer is 20 to 60㎛, solar power module.
PCT/KR2019/014934 2018-11-08 2019-11-06 Composition for coating glass for photovoltaic module and photovoltaic module comprising coating layer formed of composition WO2020096329A1 (en)

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