CN111378196A - Insulating strip for photovoltaic module, preparation method of insulating strip and photovoltaic module - Google Patents
Insulating strip for photovoltaic module, preparation method of insulating strip and photovoltaic module Download PDFInfo
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- CN111378196A CN111378196A CN201811653485.9A CN201811653485A CN111378196A CN 111378196 A CN111378196 A CN 111378196A CN 201811653485 A CN201811653485 A CN 201811653485A CN 111378196 A CN111378196 A CN 111378196A
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- Prior art keywords
- insulating strip
- photovoltaic module
- pet substrate
- pet
- eva
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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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/12—Chemical modification
- C08J7/123—Treatment by wave energy or particle radiation
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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
- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
- C08J7/12—Chemical modification
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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
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
- C08J2367/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
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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
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—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
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
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- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Photovoltaic Devices (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a preparation method of an insulating strip for a photovoltaic module, which comprises the following steps: a step of corona-treating the PET substrate used for the preparation of the insulating tape or the PET substrate on the insulating tape. The invention adopts corona to treat the PET substrate, and can effectively improve the surface bonding property of PET.
Description
Technical Field
The invention relates to the field of photovoltaic modules, in particular to an insulating strip for a photovoltaic module, a preparation method of the insulating strip and the photovoltaic module.
Background
In the prior art, when a photovoltaic module is packaged, an insulating strip needs to be adopted for isolation and adhesion of a bus bar, but the insulating strip in the prior art has poor adhesive property, and further improvement is needed urgently.
Disclosure of Invention
The invention aims to provide a technical scheme which is low in cost, simple in scheme and improved in bonding performance.
In order to achieve the purpose, the technical scheme of the invention is as follows: a method of making an insulating strip for a photovoltaic module, comprising the steps of:
a step of corona-treating the PET substrate used for the preparation of the insulating tape or the PET substrate on the insulating tape.
The invention adopts corona to treat the PET substrate, and can effectively improve the surface bonding property of PET.
Further, the method also comprises the following steps:
and (3) carrying out ozone treatment on the PET base material for preparing the insulating strip or the PET base material on the insulating strip after corona treatment. The surface bonding performance of the PET base material is further improved by utilizing dual intervention of corona and ozone, and the record of adopting two processes simultaneously is not available in the prior art at present.
Further, the method also comprises the following steps:
mixing EVA particles with an ultraviolet stabilizer and a coupling agent, and coating one or two surfaces of a PET substrate, wherein the content of the ultraviolet stabilizer is 0.2-0.5%, the content of the coupling agent is 0.5-0.8%, and the balance is the EVA particles. The ultraviolet resistance of the insulating strip can be effectively improved, and the service life and the quality are ensured.
Further, in the above-mentioned case,
the voltage adopted by the corona treatment is 8-12 KV.
Further, in the above-mentioned case,
the ozone treatment is high-pressure ozone treatment.
Furthermore, a layer of water-soluble glue is added on the surface of the PET, so that the adhesive force between the PET and the EVA is increased.
The present invention also provides an insulating strip for a photovoltaic module,
the method comprises the following layer structure:
an EVA layer;
the PET substrate, the higher authority and/or the lower face of PET substrate cover is equipped with the EVA layer.
Furthermore, the EVA layer and the PET substrate are connected by water-soluble glue.
Furthermore, the surface of the EVA layer, which is far away from the PET substrate, is coated with an anti-UV layer.
Furthermore, the UV resistant layer is formed by mixing EVA particles, an ultraviolet stabilizer and a coupling agent, and then is coated on one side or two sides of the PET substrate, wherein the content of the ultraviolet stabilizer is 0.2-0.5%, the content of the coupling agent is 0.5-0.8%, and the balance is the EVA particles.
The invention also provides a photovoltaic module, wherein any one of the insulating strips is applied to the photovoltaic module; or using an insulating strip treated by any of the methods described above. The insulating strip or the insulating strip processed by the method is used for packaging and isolating bonding of the bus bar, the bonding performance is perfect, and the ultraviolet resistance is effectively improved after the anti-UV layer is arranged.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 shows a schematic diagram of an example of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A method of making an insulating strip for a photovoltaic module, comprising the steps of:
a step of corona-treating the PET substrate used for the preparation of the insulating tape or the PET substrate on the insulating tape.
The invention adopts corona to treat the PET substrate, and can effectively improve the surface bonding property of PET.
Further, the method also comprises the following steps:
and (3) carrying out ozone treatment on the PET base material for preparing the insulating strip or the PET base material on the insulating strip after corona treatment. The surface bonding performance of the PET base material is further improved by utilizing dual intervention of corona and ozone, and the record of adopting two processes simultaneously is not available in the prior art at present.
Further, the method also comprises the following steps:
mixing EVA particles with an ultraviolet stabilizer and a coupling agent, and coating one or two surfaces of a PET substrate, wherein the content of the ultraviolet stabilizer is 0.2-0.5%, the content of the coupling agent is 0.5-0.8%, and the balance is the EVA particles. The ultraviolet resistance of the insulating strip can be effectively improved, and the service life and the quality are ensured. For example, the content of the ultraviolet stabilizer is 0.2%, the content of the coupling agent is 0.8%, and the content of the EVA particles is 99%. Or 0.5 percent of ultraviolet stabilizer, 0.5 percent of coupling agent and 99 percent of EVA particle. Or 0.3 percent of ultraviolet stabilizer, 0.6 percent of coupling agent and 99.1 percent of EVA particles.
In practical application, the voltage used for the corona treatment is 8-12 KV.
In practical applications, the ozone treatment is a high pressure ozone treatment.
Furthermore, a layer of water-soluble glue is added on the surface of the PET, so that the adhesive force between the PET and the EVA is increased.
As shown in fig. 1, the present invention also provides an insulating strip for a photovoltaic module, comprising the following layer structure:
an EVA layer 21;
the PET substrate 1, the EVA layer 21 is covered on the upper surface and/or the lower surface of the PET substrate 1.
Further, the EVA layer 21 and the PET substrate 1 are connected by a water-soluble glue 11.
Furthermore, the side of the EVA layer 21 far away from the PET substrate 1 is coated with a UV resistant layer 22.
Further, the anti-UV layer 22 is formed by mixing EVA particles with an ultraviolet stabilizer and a coupling agent, and then coated on one or both sides of the PET substrate 1, wherein the content of the ultraviolet stabilizer is 0.2-0.5%, the content of the coupling agent is 0.5-0.8%, and the balance is EVA particles.
The invention also provides a photovoltaic module, wherein any one of the insulating strips is applied to the photovoltaic module; or using an insulating strip treated by any of the methods described above. The insulating strip or the insulating strip processed by the method is used for packaging and isolating bonding of the bus bar, the bonding performance is perfect, and the ultraviolet resistance is effectively improved after the anti-UV layer is arranged.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and similar parts between the embodiments are referred to each other. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A preparation method of an insulating strip for a photovoltaic module is characterized by comprising the following steps:
a step of corona-treating the PET substrate used for the preparation of the insulating tape or the PET substrate on the insulating tape.
2. A method of making an insulating strip for a photovoltaic module according to claim 1, further comprising the steps of:
and (3) carrying out ozone treatment on the PET base material for preparing the insulating strip or the PET base material on the insulating strip after corona treatment.
3. A method of manufacturing an insulating strip for photovoltaic modules according to claim 1 or 2, characterized in that it comprises the following further steps:
mixing EVA particles with an ultraviolet stabilizer and a coupling agent, and coating one or two surfaces of a PET substrate, wherein the content of the ultraviolet stabilizer is 0.2-0.5%, the content of the coupling agent is 0.5-0.8%, and the balance is the EVA particles.
4. The method of manufacturing an insulating strip for photovoltaic modules according to claim 1,
a layer of water-soluble glue is added on the surface of the PET for increasing the adhesive force between the PET and the EVA.
5. The method of manufacturing an insulating strip for photovoltaic modules according to claim 2,
the ozone treatment is high-pressure ozone treatment.
6. An insulating strip for a photovoltaic module, characterized in that,
the method comprises the following layer structure:
an EVA layer;
the PET substrate, the higher authority and/or the lower face of PET substrate cover is equipped with the EVA layer.
7. The insulating strip applied to the photovoltaic module as claimed in claim 6, wherein the EVA layer and the PET substrate are connected by water-soluble glue.
8. The insulating strip applied to the photovoltaic module as claimed in claim 6 or 7, wherein the side of the EVA layer far away from the PET substrate is coated with a UV resistant layer.
9. The insulating strip applied to a photovoltaic module according to claim 8,
the anti-UV layer is formed by mixing EVA particles, an ultraviolet stabilizer and a coupling agent, and then is coated on one side or two sides of the PET substrate, wherein the content of the ultraviolet stabilizer is 0.2-0.5%, the content of the coupling agent is 0.5-0.8%, and the balance is the EVA particles.
10. A photovoltaic module, characterized in that the insulating strip according to any one of claims 6 to 9 is applied in the photovoltaic module; or using an insulating strip treated by the method of any of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811653485.9A CN111378196A (en) | 2018-12-29 | 2018-12-29 | Insulating strip for photovoltaic module, preparation method of insulating strip and photovoltaic module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811653485.9A CN111378196A (en) | 2018-12-29 | 2018-12-29 | Insulating strip for photovoltaic module, preparation method of insulating strip and photovoltaic module |
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| Publication Number | Publication Date |
|---|---|
| CN111378196A true CN111378196A (en) | 2020-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811653485.9A Pending CN111378196A (en) | 2018-12-29 | 2018-12-29 | Insulating strip for photovoltaic module, preparation method of insulating strip and photovoltaic module |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100843723B1 (en) * | 2007-06-22 | 2008-07-04 | 주식회사 에스에프씨 | A method white polyester film |
| CN103832034A (en) * | 2014-03-07 | 2014-06-04 | 宜兴市王者塑封有限公司 | Three-layer-structured PET (polythylene terephthalate) composite membrane for packaging photovoltaic module and preparation method of three-layer-structured PET composite membrane |
| CN104194021A (en) * | 2014-08-13 | 2014-12-10 | 苏州泰科尼光伏材料有限公司 | Production method and finished product of electrode insolating bar of solar battery module |
-
2018
- 2018-12-29 CN CN201811653485.9A patent/CN111378196A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100843723B1 (en) * | 2007-06-22 | 2008-07-04 | 주식회사 에스에프씨 | A method white polyester film |
| CN103832034A (en) * | 2014-03-07 | 2014-06-04 | 宜兴市王者塑封有限公司 | Three-layer-structured PET (polythylene terephthalate) composite membrane for packaging photovoltaic module and preparation method of three-layer-structured PET composite membrane |
| CN104194021A (en) * | 2014-08-13 | 2014-12-10 | 苏州泰科尼光伏材料有限公司 | Production method and finished product of electrode insolating bar of solar battery module |
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Application publication date: 20200707 |