CN108000993B - Solar cell panel glass cover plate - Google Patents

Solar cell panel glass cover plate Download PDF

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Publication number
CN108000993B
CN108000993B CN201711190792.3A CN201711190792A CN108000993B CN 108000993 B CN108000993 B CN 108000993B CN 201711190792 A CN201711190792 A CN 201711190792A CN 108000993 B CN108000993 B CN 108000993B
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CN
China
Prior art keywords
elastomer film
glass
toughened glass
surface layer
cover plate
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CN201711190792.3A
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Chinese (zh)
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CN108000993A (en
Inventor
潘春
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Jiangsu Mingyu New Energy Resources Co ltd
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Jiangsu Mingyu New Energy Resources Co ltd
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Priority to CN201711190792.3A priority Critical patent/CN108000993B/en
Publication of CN108000993A publication Critical patent/CN108000993A/en
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10064—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising at least two glass sheets, only one of which being an outer layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
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    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
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    • B32B17/10807—Making laminated safety glass or glazing; Apparatus therefor
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    • C08L29/14—Homopolymers or copolymers of acetals or ketals obtained by polymerisation of unsaturated acetals or ketals or by after-treatment of polymers of unsaturated alcohols
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    • 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
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Physics & Mathematics (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Fluid Mechanics (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Laminated Bodies (AREA)
  • Surface Treatment Of Glass (AREA)
  • Photovoltaic Devices (AREA)

Abstract

The invention provides a solar cell panel glass cover plate, which comprises a four-layer structure, and sequentially comprises the following components from top to bottom: the laminated elastomer film comprises a surface layer elastomer film, first toughened glass, an interlayer elastomer film and second toughened glass; the thickness of the surface layer elastomer film is 1.5 mm-2.5 mm, the thickness of the first toughened glass is 2.0 mm-3.0 mm, the thickness of the interlayer elastomer film is 0.7 mm-2.0 mm, and the thickness of the second toughened glass is 2.0 mm-3.0 mm. The surface layer elastomer film comprises the following components in percentage by mass: 65-85% of polyvinyl butyral, 10-40% of polyethylene resin, 0.1-1.0% of wear-resisting agent, 0.2-5.0% of nucleating agent and 0-5.0% of compatilizer; the interlayer elastomer film comprises the following components in percentage by mass: 75-85% of polyvinyl butyral, 5-20% of polyethylene resin, 0.2-3.0% of nucleating agent and 0-5.0% of compatilizer. The solar glass cover plate has a four-layer structure, the surface layer elastomer film mainly plays a role in light transmission and wear resistance, and the interlayer elastomer film can improve the toughness of the solar glass cover plate, so that the solar glass cover plate is not easy to crack and better adapts to different outdoor weather conditions.

Description

Solar cell panel glass cover plate
Technical Field
The invention relates to the field of solar cell devices, in particular to a glass cover plate of a solar cell panel.
Background
In order to protect the solar panel, a cover glass is generally bonded to the solar panel. The cover glass of the solar panel is originally composed of a single glass, and with the development of technology, the cover glass of the solar panel has been developed from a single glass to an optical system composed of multiple layers of materials. The main criteria for evaluating solar cover glass are the strength, transparency and abrasion resistance of the cover glass. In order to solve the problem of transparency, a layer of antireflection film is plated on a glass cover plate, but the antireflection film has poor strength and weather resistance, and solar energy is damaged in severe weather, so that the power generation effect is influenced.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the glass cover plate of the solar cell panel, which has higher strength, wear resistance and transparency, plays a good role in protecting the solar cell panel, and simultaneously does not influence the light transmission of the glass cover plate of the solar cell panel.
In order to achieve the purpose, the invention provides the following specific technical scheme:
solar cell panel glass cover plate, its characterized in that, including four-layer structure, follow and to being extremely down in proper order: the laminated elastomer film comprises a surface layer elastomer film, first toughened glass, an interlayer elastomer film and second toughened glass; the thickness of the surface layer elastomer film is 1.5 mm-2.5 mm, the thickness of the first toughened glass is 2.0 mm-3.0 mm, the thickness of the interlayer elastomer film is 0.7 mm-2.0 mm, and the thickness of the second toughened glass is 2.0 mm-3.0 mm. The surface layer elastomer film mainly plays a role in light transmission and wear resistance, and the interlayer elastomer film mainly plays a role in improving the toughness of the solar glass cover plate, so that the solar glass cover plate has certain tensile property and is not easy to crack.
The surface layer elastomer film comprises the following components in percentage by mass: 65-85% of polyvinyl butyral, 10-40% of polyethylene resin, 0.1-1.0% of wear-resisting agent, 0.2-5.0% of nucleating agent and 0-5.0% of compatilizer.
The wear-resistant agent can improve the wear resistance of the surface layer elastomer, the nucleating agent can improve the transparency of the surface layer elastomer, and the compatilizer can enable all components to be better fused to obtain a stable blend.
The interlayer elastomer film comprises the following components in percentage by mass: 75-85% of polyvinyl butyral, 5-20% of polyethylene resin, 0.2-3.0% of nucleating agent and 0-5.0% of compatilizer.
Preferably, the abrasion resistant agent is a thermoplastic polyurethane. The three-dimensional space network structure caused by chemical crosslinking in the molecules of the thermoplastic polyurethane has great rigidity and stability, and the thermoplastic polyurethane has good resistance to radiation and ozone and is not easy to age.
Preferably, the nucleating agent is a PE (thermoplastic resin) nucleating agent, the main component of which is dibenzylidene sorbitol, and the nucleating agent can obviously improve the transparency and the anti-fogging capacity of the thermoplastic resin and also has the effect of improving the tensile strength of the thermoplastic resin to a certain extent.
Preferably, the compatibilizer is a maleic acid grafted compatibilizer. The maleic anhydride grafting compatilizer leads the material to have high polarity and reactivity by introducing strong polar reactive groups, and can greatly improve the compatibility of the composite material and the dispersibility of the filler, thereby improving the mechanical strength of the composite material.
In addition, the invention also provides a preparation method of the glass cover plate of the solar cell panel, which comprises the following steps:
(1) cleaning the first toughened glass on the upper piece, cleaning the double sides of the first toughened glass by adopting an ultrasonic cleaning machine, and cleaning the single side of the second toughened glass;
(2) laminating, namely putting the first toughened glass and the second toughened glass into a laminating machine, sucking up by using a vacuum chuck, putting the laminated elastomer film into the laminated elastomer film, and cutting off the redundant laminated elastomer film;
(3) laminating, namely preheating the surface layer elastomer film and then pasting the preheated surface layer elastomer film on first toughened glass to obtain a semi-finished product of the glass cover plate of the solar cell panel;
(4) pre-pressing, namely heating and pressing the semi-finished product of the glass cover plate of the solar cell panel twice by using a heating furnace and a roller press, wherein the temperature in the heating furnace for the first time is 80-100 ℃, the temperature in the heating furnace for the second time is 180-200 ℃, the pre-pressing pressure for the first time is 0.4-0.6 MPa, and the pre-pressing pressure for the second time is 0.6-0.8 MPa;
(5) and (3) feeding the glass cover sheet of the solar cell panel subjected to the steps into an autoclave at high temperature and high pressure, and maintaining the constant temperature of 120-135 ℃ and the constant pressure of 1.20-1.40 MPa for 60min to obtain a finished glass cover sheet of the solar cell panel.
The invention has the beneficial effects that:
1. the solar glass cover plate has a four-layer structure, the surface layer elastomer film mainly plays a role in light transmission and wear resistance, and the interlayer elastomer film can improve the toughness of the solar glass cover plate, so that the solar glass cover plate is not easy to crack and better adapts to different outdoor weather conditions;
2. the wear-resistant agent is added into the surface layer elastomer film, so that the surface layer elastomer film has good wear resistance and durability;
3. according to the invention, the nucleating agents are added into the surface layer elastomer film and the interlayer elastomer film, so that the surface layer elastomer film and the interlayer elastomer film have higher transparency;
4. the compatilizer is added into both the surface layer elastomer film and the interlayer elastomer film, so that the performances of the surface layer elastomer film and the interlayer elastomer film are more stable.
Detailed Description
The following detailed description of the invention refers to specific embodiments for facilitating understanding by those skilled in the art.
Example 1
Solar cell panel glass cover plate, its characterized in that, including four-layer structure, follow and to being extremely down in proper order: the laminated elastomer film comprises a surface layer elastomer film, first toughened glass, an interlayer elastomer film and second toughened glass; the thickness of the surface layer elastomer film is 1.5mm, the thickness of the first toughened glass is 2.0mm, the thickness of the interlayer elastomer film is 0.7mm, and the thickness of the second toughened glass is 3.0 mm.
The surface layer elastomer film comprises the following components in percentage by mass: 65% of polyvinyl butyral, 31.3% of polyethylene resin, 0.1% of wear-resisting agent, 3.3% of nucleating agent and 0.3% of compatilizer. The wear-resistant agent can improve the wear resistance of the surface layer elastomer, the nucleating agent can improve the transparency of the surface layer elastomer, and the compatilizer can enable all components to be better fused to obtain a stable blend.
The interlayer elastomer film comprises the following components in percentage by mass: 85% of polyvinyl butyral, 10% of polyethylene resin, 1.0% of nucleating agent and 4.0% of compatilizer.
The wear-resistant agent is thermoplastic polyurethane. The nucleating agent is PE (thermoplastic resin) nucleating agent, and the main component of the nucleating agent is dibenzylidene sorbitol. The compatilizer is maleic acid grafted compatilizer.
The preparation method of the solar cell panel glass cover plate specifically comprises the following steps:
(1) cleaning the first toughened glass on the upper piece, cleaning the double sides of the first toughened glass by adopting an ultrasonic cleaning machine, and cleaning the single side of the second toughened glass;
(2) laminating, namely putting the first toughened glass and the second toughened glass into a laminating machine, sucking up by using a vacuum chuck, putting the laminated elastomer film into the laminated elastomer film, and cutting off the redundant laminated elastomer film;
(3) laminating, namely preheating the surface layer elastomer film and then pasting the preheated surface layer elastomer film on first toughened glass to obtain a semi-finished product of the glass cover plate of the solar cell panel;
(4) pre-pressing, namely heating and pressurizing the semi-finished product of the glass cover plate of the solar cell panel twice by using a heating furnace and a roller press, wherein the temperature in the heating furnace for the first time is 80 ℃, the temperature in the heating furnace for the second time is 200 ℃, the pre-pressing pressure for the first time is 0.6MPa, and the pre-pressing pressure for the second time is 0.6 MPa;
(5) and (3) feeding the solar cell panel glass cover plate subjected to the steps into an autoclave at high temperature and high pressure, and maintaining the constant temperature of 120 ℃ and the constant pressure of 1.20MPa for 60min to obtain a finished product of the solar cell panel glass cover plate.
Example 2
Solar cell panel glass cover plate, its characterized in that, including four-layer structure, follow and to being extremely down in proper order: the laminated elastomer film comprises a surface layer elastomer film, first toughened glass, an interlayer elastomer film and second toughened glass; the thickness of the surface layer elastomer film is 2.0mm, the thickness of the first toughened glass is 2.5mm, the thickness of the interlayer elastomer film is 0.7mm, and the thickness of the second toughened glass is 3.0 mm.
The surface layer elastomer film comprises the following components in percentage by mass: 70% of polyvinyl butyral, 25% of polyethylene resin, 1.0% of wear-resisting agent, 2.0% of nucleating agent and 2.0% of compatilizer. The wear-resistant agent can improve the wear resistance of the surface layer elastomer, the nucleating agent can improve the transparency of the surface layer elastomer, and the compatilizer can enable all components to be better fused to obtain a stable blend.
The interlayer elastomer film comprises the following components in percentage by mass: 75% of polyvinyl butyral, 20% of polyethylene resin, 3.0% of nucleating agent and 2.0% of compatilizer.
The wear-resistant agent is thermoplastic polyurethane. The nucleating agent is PE (thermoplastic resin) nucleating agent, and the main component of the nucleating agent is dibenzylidene sorbitol. The compatilizer is maleic acid grafted compatilizer.
The preparation method of the solar cell panel glass cover plate specifically comprises the following steps:
(1) cleaning the first toughened glass on the upper piece, cleaning the double sides of the first toughened glass by adopting an ultrasonic cleaning machine, and cleaning the single side of the second toughened glass;
(2) laminating, namely putting the first toughened glass and the second toughened glass into a laminating machine, sucking up by using a vacuum chuck, putting the laminated elastomer film into the laminated elastomer film, and cutting off the redundant laminated elastomer film;
(3) laminating, namely preheating the surface layer elastomer film and then pasting the preheated surface layer elastomer film on first toughened glass to obtain a semi-finished product of the glass cover plate of the solar cell panel;
(4) pre-pressing, namely heating and pressurizing the semi-finished product of the glass cover plate of the solar cell panel twice by using a heating furnace and a roller press, wherein the temperature in the heating furnace for the first time is 90 ℃, the temperature in the heating furnace for the second time is 180 ℃, the pre-pressing pressure for the first time is 0.6MPa, and the pre-pressing pressure for the second time is 0.7 MPa;
(5) and (3) feeding the solar cell panel glass cover plate subjected to the steps into an autoclave at high temperature and high pressure, and keeping the temperature of 135 ℃ and the constant pressure of 1.20MPa for 60min to obtain a finished product of the solar cell panel glass cover plate.
Example 3
Solar cell panel glass cover plate, its characterized in that, including four-layer structure, follow and to being extremely down in proper order: the laminated elastomer film comprises a surface layer elastomer film, first toughened glass, an interlayer elastomer film and second toughened glass; the thickness of the surface layer elastomer film is 1.5mm, the thickness of the first toughened glass is 2.0mm, the thickness of the interlayer elastomer film is 0.7mm, and the thickness of the second toughened glass is 3.0 mm.
The surface layer elastomer film comprises the following components in percentage by mass: 85% of polyvinyl butyral, 8.8% of polyethylene resin, 1.0% of wear-resisting agent, 0.2% of nucleating agent and 5.0% of compatilizer. The wear-resistant agent can improve the wear resistance of the surface layer elastomer, the nucleating agent can improve the transparency of the surface layer elastomer, and the compatilizer can enable all components to be better fused to obtain a stable blend.
The interlayer elastomer film comprises the following components in percentage by mass: 80% of polyvinyl butyral, 14% of polyethylene resin, 1.0% of nucleating agent and 5.0% of compatilizer.
The wear-resistant agent is thermoplastic polyurethane. The nucleating agent is PE (thermoplastic resin) nucleating agent, and the main component of the nucleating agent is dibenzylidene sorbitol. The compatilizer is maleic acid grafted compatilizer.
The preparation method of the solar cell panel glass cover plate specifically comprises the following steps:
(1) cleaning the first toughened glass on the upper piece, cleaning the double sides of the first toughened glass by adopting an ultrasonic cleaning machine, and cleaning the single side of the second toughened glass;
(2) laminating, namely putting the first toughened glass and the second toughened glass into a laminating machine, sucking up by using a vacuum chuck, putting the laminated elastomer film into the laminated elastomer film, and cutting off the redundant laminated elastomer film;
(3) laminating, namely preheating the surface layer elastomer film and then pasting the preheated surface layer elastomer film on first toughened glass to obtain a semi-finished product of the glass cover plate of the solar cell panel;
(4) pre-pressing, namely heating and pressurizing the semi-finished product of the glass cover plate of the solar cell panel twice by using a heating furnace and a roller press, wherein the temperature in the heating furnace for the first time is 80 ℃, the temperature in the heating furnace for the second time is 200 ℃, the pre-pressing pressure for the first time is 0.5MPa, and the pre-pressing pressure for the second time is 0.6 MPa;
(5) and (3) feeding the solar cell panel glass cover plate subjected to the steps into an autoclave at high temperature and high pressure, and maintaining the constant temperature of 120 ℃ and the constant pressure of 1.30MPa for 60min to obtain a finished product of the solar cell panel glass cover plate.
The thickness of the surface layer elastomer film is 2.0mm, the thickness of the first toughened glass is 2.5mm, the thickness of the interlayer elastomer film is 0.7mm, the thickness of the second toughened glass is 3.0mm, the surface layer elastomer film and the interlayer elastomer film are respectively tested by the solar cell glass cover plate manufactured in the embodiment, and the measured specific performance indexes are as follows:
Figure DEST_PATH_IMAGE002A
as can be seen from the above data, the glass cover plate for a solar cell according to the present invention has good light transmittance, and compared with the prior art, the transmittance of example 1 exceeds 5.03%, the transmittance of example 2 exceeds 8.73%, and the transmittance of example 3 exceeds 1.35%, wherein the light transmittance of example 2 is the best. The above-mentioned patterns were all damaged by falling ball impact stripping and shot bag impact testing. The abrasion resistance is tested by adopting an abrasion resistance tester in a rotary grinding mode, obvious scratches can be seen on the common solar glass cover plate, and the three groups of patterns have no scratches.

Claims (5)

1. Solar cell panel glass cover plate, its characterized in that, including four-layer structure, follow and to being extremely down in proper order: the laminated elastomer film comprises a surface layer elastomer film, first toughened glass, an interlayer elastomer film and second toughened glass; the thickness of the surface layer elastomer film is 1.5 mm-2.5 mm, the thickness of the first toughened glass is 2.0 mm-3.0 mm, the thickness of the interlayer elastomer film is 0.7 mm-2.0 mm, and the thickness of the second toughened glass is 2.0 mm-3.0 mm; the surface layer elastomer film comprises the following components in percentage by mass: 65-85% of polyvinyl butyral, 10-40% of polyethylene resin, 0.1-1.0% of wear-resisting agent, 0.2-5.0% of nucleating agent and 0-5.0% of compatilizer; the sum of the contents of all the components is hundred percent; the interlayer elastomer film comprises the following components in percentage by mass: 75-85% of polyvinyl butyral, 5-20% of polyethylene resin, 0.2-3.0% of nucleating agent and 0-5.0% of compatilizer; the sum of the contents of all the components is hundred percent.
2. The solar panel cover glass of claim 1, wherein the abrasion resistant agent is a thermoplastic polyurethane.
3. The solar panel cover glass of claim 1, wherein the nucleating agent is a PE nucleating agent.
4. The solar panel cover glass of claim 1, wherein the compatibilizer is a maleic anhydride grafted compatibilizer.
5. A method of making a solar panel cover glass according to any of claims 1 to 4, comprising the steps of:
(1) cleaning the first toughened glass on the upper piece, cleaning the double sides of the first toughened glass by adopting an ultrasonic cleaning machine, and cleaning the single side of the second toughened glass;
(2) laminating, namely putting the first toughened glass and the second toughened glass into a laminating machine, sucking up by using a vacuum chuck, putting the laminated elastomer film into the laminated elastomer film, and cutting off the redundant laminated elastomer film;
(3) laminating, namely preheating the surface layer elastomer film and then pasting the preheated surface layer elastomer film on first toughened glass to obtain a semi-finished product of the glass cover plate of the solar cell panel;
(4) pre-pressing, namely heating and pressing the semi-finished product of the glass cover plate of the solar cell panel twice by using a heating furnace and a roller press, wherein the temperature in the heating furnace for the first time is 80-100 ℃, the temperature in the heating furnace for the second time is 180-200 ℃, the pre-pressing pressure for the first time is 0.4-0.6 MPa, and the pre-pressing pressure for the second time is 0.6-0.8 MPa;
(5) and (3) feeding the glass cover sheet of the solar cell panel subjected to the steps into an autoclave at high temperature and high pressure, and maintaining the constant temperature of 120-135 ℃ and the constant pressure of 1.20-1.40 MPa for 60min to obtain a finished glass cover sheet of the solar cell panel.
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