Optical-transfer packaging adhesive film, and preparation technique and application thereof

A technology for encapsulating adhesive films and converting light, which is applied in adhesives, photovoltaic power generation, film/sheet adhesives, etc., can solve problems that do not involve the processing technology and preparation of wavelength conversion particles, power improvement, Problems such as dispersion and compatibility, to reduce the harm of ultraviolet rays penetrating to the backplane, improve power, and reduce costs

Inactive Publication Date: 2014-12-10
CHANGZHOU SVECK PHOTOVOLTAIC NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Long-term practice has proved that it has achieved quite satisfactory results in solar cell encapsulation and outdoor use, but there is no product in terms of light-transfer encapsulation film.
Although CN102732160A has invented a kind of EVA encapsulation adhesive film that improves the spectral conversion efficiency of solar cell modules, there is no mention of power improvement
CN102093628A invented an EVA adhesive film with light conversion properties and its preparation method, but this phenomenon can only be found in theory, there is no practical application data, and there is no related component test
[0006] The above patent scheme has the following two problems: 1. EVA, POE as the base material of the packaging material and the dispersion and compatibility of the light conversion particles mixed, 2. It does not involve the processing technology and preparation of the wavelength conversion particles

Method used

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  • Optical-transfer packaging adhesive film, and preparation technique and application thereof
  • Optical-transfer packaging adhesive film, and preparation technique and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] raw material

[0039] The above-mentioned materials were granulated in a twin-screw extruder according to the dosage of the formula, and extruded through a T-die of a coat hanger to form a film at a temperature of 90° C. and a film thickness of 0.3 mm.

Embodiment 2

[0041] raw material

[0042] Triphenyl phosphite

[0043] The above-mentioned materials were granulated in a twin-screw extruder according to the dosage of the formula, and extruded through a T-die of a coat hanger to form a film at a temperature of 100° C. and a film thickness of 0.4 mm.

Embodiment 3

[0045] raw material

[0046] The above-mentioned materials were granulated in a twin-screw extruder according to the dosage of the formula, and extruded through a T-die of a coat hanger to form a film at a temperature of 100° C. and a film thickness of 0.4 mm.

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Abstract

The invention discloses an optical-transfer packaging adhesive film which is prepared from the following raw materials in parts by weight: 80-100 parts of ethylene-vinyl acetate copolymer, 0.01-5 parts of crosslinking agent, 0.01-10 parts of antioxidant, 1-10 parts of solubilizer and 1-10 parts of wavelength conversion particle. The adhesive film has the advantages of favorable light transmittance, high optical-transfer efficiency and uniform dispersion.

Description

technical field [0001] The invention relates to a packaging material for a photovoltaic module, in particular to a light-transfer packaging adhesive film and a preparation process thereof. Background technique [0002] At present, the development of adhesive films for solar cell packaging has begun to take shape in China, and its bonding strength, visible light transmittance, and high-temperature, high-humidity, and UV-aging resistance are all comparable to foreign products. [0003] EVA is ethylene vinyl acetate copolymer, which is a kind of transparent colloid with good flexibility and bonding performance, good light transmission performance and aging resistance. It uses the vacuum lamination technology to form a crystalline silicon module by "covering" the crystalline silicon chip group, encapsulating the silicon chip group, and bonding the upper layer of protective material glass and the lower layer of protective material backplane using vacuum lamination technology. Lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/00C09J123/08C09J11/08C09J11/06H01L31/048H01L31/055
CPCY02E10/52
Inventor 赵世界
Owner CHANGZHOU SVECK PHOTOVOLTAIC NEW MATERIAL
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