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Solar cell encapsulation adhesive film

A technology for solar cells and encapsulation films, used in adhesives, film/sheet adhesives, films/sheets without carriers, etc., which can solve the problem of poor light stability and low spectral utilization of organic fluorescent agents , affecting the light transmittance of the film, etc., to improve the connection stability, improve the safety of use, and improve the overall stability.

Inactive Publication Date: 2019-03-15
CHANGZHOU SVECK PHOTOVOLTAIC NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the absorption band of the organic fluorescent agent is narrow, and the utilization rate of the spectrum is not high, and the photostability of the organic fluorescent agent is not good, and there will be discoloration and other phenomena after long-term use, which will affect the light transmittance of the film.

Method used

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  • Solar cell encapsulation adhesive film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A solar cell encapsulation adhesive film, made by the following method: 100 parts by weight of matrix resin, 0.2 parts by weight of light conversion agent, 0.02 parts by weight of peroxide initiator, 0.8 parts by weight of crosslinking agent, 0.05 parts by weight Parts by weight of auxiliary crosslinking agent, 0.5 parts by weight of tackifier, 0.05 parts by weight of light stabilizer containing reactive groups, 0.05 parts by weight of antioxidant, 0.05 parts by weight of hydrophobic agent, 0.02 parts by weight of anti-oxidant After the acid agent is mixed evenly, it is granulated with a twin-screw extruder, and the finished single-screw extruder is extruded and cast to form a film.

[0020] Wherein, the crosslinking agent is tert-butylperoxycarbonate-2-ethylhexyl, and the auxiliary crosslinking agent is trimethylolpropane tri(methacrylate).

[0021] Among them, 4-acryloyloxy-2,2,6,6-tetramethylpiperidinol ester is selected as the light stabilizer containing reactive gr...

Embodiment 2

[0027] A solar cell encapsulation adhesive film, obtained by the following method: the matrix resin of 100 parts by weight, the light conversion agent of 0.4 parts by weight, the peroxide initiator of 0.05 parts by weight, the crosslinking agent of 1.2 parts by weight, 0.08 parts by weight Parts by weight of auxiliary crosslinking agent, 0.8 parts by weight of tackifier, 0.08 parts by weight of light stabilizer containing reactive groups, 0.12 parts by weight of antioxidant, 0.12 parts by weight of hydrophobic agent, 0.05 parts by weight of anti-oxidant After the acid agent is mixed evenly, it is granulated with a twin-screw extruder, and the finished single-screw extruder is extruded and cast to form a film.

[0028] Wherein, the crosslinking agent is tert-butylperoxycarbonate-2-ethylhexyl, and the auxiliary crosslinking agent is trimethylolpropane tri(methacrylate).

[0029] Among them, 4-methacryloyloxy-2,2,6,6-tetramethylpiperidinol ester is selected as the light stabilize...

Embodiment 3

[0036] A solar cell encapsulation adhesive film, obtained by the following method: the matrix resin of 100 parts by weight, the light conversion agent of 1 part by weight, the peroxide initiator of 0.8 parts by weight, the crosslinking agent of 4 parts by weight, 2.5 parts by weight Parts by weight of auxiliary crosslinking agent, 2.5 parts by weight of tackifier, 2.5 parts by weight of light stabilizer containing reactive groups, 2 parts by weight of antioxidant, 1 part by weight of hydrophobic agent, 0.5 parts by weight of anti-oxidant After the acid agent is mixed evenly, it is granulated with a twin-screw extruder, and the finished single-screw extruder is extruded and cast to form a film.

[0037] Wherein, the crosslinking agent is tert-butylperoxycarbonate-2-ethylhexyl, and the auxiliary crosslinking agent is trimethylolpropane tri(methacrylate).

[0038] Among them, 4-methacryloyloxy-1,2,2,6,6-pentamethylpiperidinol ester is selected as the light stabilizer containing r...

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Abstract

The invention relates to the technical field of encapsulation of a photovoltaic module, in particular to a solar cell electromagnetic encapsulation adhesive film. The solar cell electromagnetic encapsulation adhesive film is prepared with the following method: evenly mixing 100 parts by weight of matrix resin, 0.2-1.6 parts by weight of a light conversion agent, 0.02-1.2 parts by weight of a peroxide initiator, 0.8-8 parts by weight of a cross-linking agent, 0.05-5 parts by weight of an assistant crosslinker, 0.5-4 parts by weight of a tackifier, 0.05-5 parts by weight of a light stabilizer containing a reactive group, 0.05-4 parts by weight of an antioxidant, 0.05-2 parts by weight of a water repellent agent, and 0.02-1 parts by weight of an antacid, pelleting by a twin-screw extruder, extruding by a single screw extruder, casting and forming the film; the solar cell encapsulation adhesive film is high in adhesion strength and does not gets yellow easily, the damage of ultraviolet light onto the encapsulation adhesive film is effectively reduced, and the service life of the encapsulation adhesive film is prolonged.

Description

technical field [0001] The invention relates to the technical field of photovoltaic module packaging, in particular to a solar electromagnetic packaging adhesive film. Background technique [0002] Solar EVA adhesive film, that is, solar cell encapsulation adhesive film (EVA) is a thermosetting adhesive film for placing in the middle of laminated glass (EVA is the abbreviation of Ethylene Vinyl Vinyl Acetate Acetate). [0003] Improving the response of solar cells to short-wavelength light and long-wavelength light to increase the photoelectric conversion efficiency has become a common concern in academia and industry. At present, there are two ways to achieve this goal. One is to improve the solar cell itself, and the other is to add a light conversion layer on the surface of the existing solar cell or directly add a light conversion agent to the packaging material. It can convert the wavelength band with poor response (low quantum efficiency) of the solar cell into the wa...

Claims

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Application Information

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IPC IPC(8): C09J7/10C09J7/30C09J123/00C09J11/04C09J11/06
CPCC08K2003/2241C08K2003/2296C08L2201/08C08L2203/206C09J7/10C09J7/30C09J11/04C09J11/06C09J123/00C09J2203/322C09J2301/312C09J2301/408C09J2423/00C09J2483/00C08L83/04C08K13/06C08K9/02C08K3/22C08K5/1345C08K3/36
Inventor 吕松
Owner CHANGZHOU SVECK PHOTOVOLTAIC NEW MATERIAL
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