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Insulation type solar photovoltaic backboard and preparation technology thereof

A technology of solar photovoltaic and photovoltaic backplane, which is applied in the field of insulating solar photovoltaic backplane and its preparation technology, and can solve the problems of insulating layer falling off and so on

Active Publication Date: 2021-05-07
浙江中聚材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the long-term use of solar photovoltaic backplanes in harsh external environments, the coated insulating layer is easy to fall off on the PET substrate, which cannot maintain the long-term insulation performance of solar photovoltaic backplanes.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] In order to solve the above technical problems, the first aspect of this embodiment provides an insulating solar photovoltaic backsheet, which includes an outer layer from top to bottom, an inner layer connected to the outer layer, and the raw materials for the preparation of the outer layer, In parts by weight, including 52 parts of the first polyolefin, the first polyolefin includes 48 parts of polyethylene A and 4 parts of polypropylene B, 6 parts of potassium hexatitanate whiskers, and 1 part of γ-methacryloyl Oxypropyltrimethoxysilane, the polyethylene A was purchased from Suzhou Jintelai Plastic Chemical Co., Ltd., the brand is: FD0274, and the melt index is 2.4g / 10min. , obtained by ASTM D-1238 test method, the polypropylene B was purchased from Yuyao City Yucheng Plastic Chemical Co., Ltd., the grade is: LH5544, and the melt index is 3.3g / 10min. kg, obtained by the ASTM D-1238 test method, the potassium hexatitanate whisker was purchased from Shanghai Kaishefeng...

Embodiment 2

[0052] In order to solve the above technical problems, the first aspect of this embodiment provides an insulated solar photovoltaic backsheet, which includes an outer layer from top to bottom, and The inner layer connected to the outer layer, the preparation raw material of the outer layer, by weight, includes 59 parts of the first polyolefin, and the first polyolefin includes 54 parts of polyethylene A and 5 parts of polypropylene B, 8 parts Potassium hexatitanate whiskers, and 1.3 parts of γ-methacryloxypropyltrimethoxysilane, the polyethylene A was purchased from Suzhou Jintelai Plastic Chemical Co., Ltd., the brand is: FD0274, and the melt index is 2.4 g / 10min, the melt index is obtained at 190°C and 2.16kg by ASTM D-1238 test method, the polypropylene B is purchased from Yuyao City Yucheng Plastic Chemical Co., Ltd., the brand is: LH5544, and the melt index is 3.3g / 10min, the melt index refers to 2.16kg at 190°C, obtained by ASTM D-1238 test method, the potassium hexatita...

Embodiment 3

[0060]In order to solve the above technical problems, the first aspect of this embodiment provides an insulated solar photovoltaic backsheet, which includes an outer layer from top to bottom, and The inner layer connected to the outer layer, the preparation raw material of the outer layer, by weight, includes 59 parts of the first polyolefin, and the first polyolefin includes 54 parts of polyethylene A and 5 parts of polypropylene B, 8 parts Potassium tetratitanate whiskers, and 1.3 parts of γ-methacryloxypropyl trimethoxysilane, the polyethylene A was purchased from Suzhou Jintelai Plastic Chemical Co., Ltd., the brand is: FD0274, and the melt index is 2.4 g / 10min, the melt index is obtained at 190°C and 2.16kg by ASTM D-1238 test method, the polypropylene B is purchased from Yuyao City Yucheng Plastic Chemical Co., Ltd., the brand is: LH5544, and the melt index is 3.3g / 10min, the melt index refers to the test method of ASTM D-1238 at 190°C and 2.16kg, the potassium tetratita...

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Abstract

The invention relates to an insulation type solar photovoltaic backboard, which at least comprises an outer layer and an inner layer connected with the outer layer from top to bottom, wherein the preparation raw materials of the outer layer at least comprise 20-59 parts of first polyolefin and 1-8 parts of potassium titanate whiskers, and the preparation raw materials of the inner layer at least comprise 20-57 parts of thermoplastic resin and 1-5 parts of a voltage stabilizer. According to the invention, appropriate potassium titanate whiskers are added into the outer-layer backboard, so that the heat resistance and the insulating property of the whole backboard can be improved, and the mechanical strength and the light aging resistance of the whole backboard can also be improved. The voltage stabilizer is added into the inner-layer backboard, so that the insulativity and the light aging resistance of the inner-layer back plate are further improved. According to the technical scheme, the outer layer and the inner layer are fused and integrally formed through the co-extrusion technology, raw materials for improving the insulation performance are also mixed into the solar photovoltaic backboard through the co-extrusion technology, and the overall firmness and stability of the solar photovoltaic backboard are improved.

Description

technical field [0001] The invention belongs to the technical field of solar photovoltaics, and in particular relates to an insulating solar photovoltaic backplane and a preparation process thereof. Background technique [0002] With the development of science and technology, people pay more attention to the development and utilization of solar energy. As the most important form of utilization of solar energy, solar photovoltaic cells have also developed rapidly in recent years. The solar backsheet is located on the back of the solar panel, which protects and supports the solar panels. [0003] The patent application number CN201610757183.0 discloses a production process of an organic insulating solar backsheet. The solar backsheet in this patent includes a PET base material, an organic insulating layer coated on one side of the PET base material, and an organic insulating layer. The insulating coating is formed by mixing phenolic resin, epoxy resin and amino resin to impr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/048H01L31/049H01L31/18C08L23/06C08L23/12C08L23/08C08K7/08C08K5/5425C08K5/07B29C41/26B29C41/32B29B9/06
CPCH01L31/0481H01L31/049H01L31/18C08L23/06B29C41/26B29C41/32B29B9/06C08L2205/03C08L23/12C08K7/08C08K5/5425C08L23/0853C08K5/07Y02E10/50Y02P70/50
Inventor 蔡书义焦华
Owner 浙江中聚材料有限公司
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