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Solar panel covering back film and preparation method thereof

A solar panel and back film technology, applied in chemical instruments and methods, circuits, photovoltaic power generation, etc., can solve the problems of poor anti-aging ability and weather resistance, and achieve low production cost, simple preparation method, and convenient mass production The effect of production

Active Publication Date: 2019-05-17
CHANGZHOU HUITIAN NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The current solar panel back film has poor weather resistance when used. When the anti-aging test is carried out through double 85, the usable life of the back film is about 1500h, and the anti-aging ability is poor.

Method used

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  • Solar panel covering back film and preparation method thereof

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preparation example Construction

[0047] A preparation method for covering the back film of a solar cell panel:

[0048] Step 1: preparing the surface layer, glue layer, middle layer and adhesive layer;

[0049] Step 2: preparing a solar cell panel covering back film.

[0050] According to another embodiment of the present invention, further comprising:

[0051] Put all the materials in the surface layer into the mixer and stir at a speed of 400-600 rpm for 4-8 minutes, and then put the mixed materials into the extruder to extrude at a speed of 4-6m / min. The outlet temperature is 500-600°C to prepare the surface basement film;

[0052] The surface material is mixed first, and the compatibility of the material after mixing is improved. The extruder itself has heating capacity, and the mixed material is heated and melted, and the surface base film is obtained by extrusion, and the surface base film is flattened. on the countertop.

[0053]Put the glue layer material into the hot-melt machine, heat-melt it at...

Embodiment 1

[0062] A solar cell panel covering back film, which is a surface layer, a glue layer, a middle layer and an adhesive layer from top to bottom;

[0063] The surface layer includes the following components in parts by weight: 160 parts of resin, 8 parts of polystyrene, 5 parts of curing agent, 30 parts of filler, and 15 parts of antioxidant;

[0064] The glue layer includes the following components in parts by weight: 50 parts of epoxy resin, 9 parts of hot-melt adhesive, and 3 parts of additives;

[0065] The middle layer includes the following components in parts by weight: 60 parts of low-density polyethylene, 18 parts of metallocene polyethylene, 5 parts of silicon dioxide, and 20 parts of titanium dioxide;

[0066] The adhesive layer includes the following components in parts by weight: 40 parts of polypropionate, 2 parts of antistatic additive, 0.8 part of curing agent, 8 parts of PVC resin, 3 parts of coupling agent and 6 parts of antiaging agent.

[0067] According to a...

Embodiment 2

[0086] A solar cell panel covering back film, which is a surface layer, a glue layer, a middle layer and an adhesive layer from top to bottom;

[0087] The surface layer includes the following components in parts by weight: 120 parts of resin, 4 parts of polystyrene, 3 parts of curing agent, 20 parts of filler, and 1 part of antioxidant;

[0088] The glue layer includes the following components in parts by weight: 30 parts of epoxy resin, 5 parts of hot-melt adhesive, and 1 part of additive;

[0089] The middle layer includes the following components in parts by weight: 40 parts of low-density polyethylene, 10 parts of metallocene polyethylene, 3 parts of silicon dioxide, and 1 part of titanium dioxide;

[0090] The adhesive layer includes the following components in parts by weight: 20 parts of polypropionate, 1 part of antistatic additive, 0.3 parts of curing agent, 5 parts of PVC resin, 1 part of coupling agent, and 2 parts of antiaging agent.

[0091] According to another...

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Abstract

The invention relates to the technical field of solar panel back films, in particular to a solar panel covering back film and a preparation method thereof. The solar panel covering back film comprisesa surface layer, a glue layer, an intermediate layer and a gluing layer from top to bottom sequentially. According to the solar panel covering back film, the purposes of weatherability and convenience in construction of the back film can be achieved by a unique four-layer structure, and the back film prepared in accordance with the formula can maintain the service life of 2500 h or longer when tested by double-80 (temperature of 80 DEG C and humidity of 80%) anti-aging experiments; the preparation method is simple, low in production cost and convenient for mass production, and product qualification rate is high.

Description

technical field [0001] The invention relates to the technical field of solar battery panel back film, in particular to a solar battery panel covering back film and a preparation method thereof. Background technique [0002] As a green alternative to traditional methods of electricity production, photovoltaic cell modules are used to generate electricity from the sun. Photovoltaic cell module is a laminated structure, assembled by various semiconductor components, it mainly includes glass surface layer, EVA sealing layer, solar cells, EVA sealing layer and solar cell back film. Since photovoltaic cell modules are usually installed outdoors, they must be protected to reduce the impact and damage of environmental effects such as moisture, oxygen and ultraviolet rays. Therefore, they have excellent electrical insulation, interlayer bonding strength, weather resistance, and UV resistance. The back film with moisture barrier performance plays an important protective role in photo...

Claims

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Application Information

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IPC IPC(8): C09J7/29C09J7/30C09J133/04C09J11/08C08L23/06C08K3/36C08K3/22B32B7/12B32B27/08B32B27/20B32B27/32B32B33/00B32B37/10B32B37/12B32B37/15H01L31/049
CPCY02E10/50
Inventor 李建李威弘
Owner CHANGZHOU HUITIAN NEW MATERIALS
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