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Black infrared reflection type packaging adhesive film and preparation method thereof

An infrared reflection and encapsulation film technology, applied in adhesives, films/sheets without carriers, photovoltaic power generation, etc., can solve the problems of low efficiency and high working temperature of all-black components, reduce the working temperature, avoid the risk of delamination, The effect of enhancing reflectivity

Pending Publication Date: 2022-01-18
CHANGZHOU SVECK PHOTOVOLTAIC NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a black infrared reflective packaging adhesive film and its preparation method to solve the problems of high working temperature and low efficiency of all black components

Method used

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  • Black infrared reflection type packaging adhesive film and preparation method thereof
  • Black infrared reflection type packaging adhesive film and preparation method thereof

Examples

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Effect test

preparation example Construction

[0036] The preparation method of black infrared reflective adhesive film, comprises the following steps:

[0037] 1) Mix the diffuse reflective filler and ethylene copolymer uniformly at a ratio of 1:9, extrude through a twin-screw extruder, and control the temperature of each section of the screw at 90-110°C to make a diffuse reflective masterbatch; mix the infrared reflective filler with The ethylene copolymer is mixed evenly at a ratio of 4:6, extruded by a twin-screw extruder, and the temperature of each section of the screw is controlled at 90-110°C to prepare a masterbatch with infrared reflection properties;

[0038] 2) Mixing: Low pre-crosslinked transparent layer: Add ethylene copolymer and other additives to the cone mixer, control the temperature at 50°C, stir evenly for 2 hours, and let it stand for 5 hours; Black high-reflection layer: Add ethylene Copolymer, infrared reflection color masterbatch, diffuse reflection masterbatch and other additives are added to the...

Embodiment 1

[0052] A method for preparing a black infrared reflective packaging adhesive film, the packaging adhesive film includes a two-layer structure, which is a low pre-crosslinked transparent layer in contact with the battery sheet and a black high-reflection layer in contact with the back material, calculated in parts by weight, The material composition is as follows:

[0053] Low pre-crosslinking transparent layer: per 100 parts of ethylene-vinyl acetate resin contains 0.6 parts of initiator tert-butyl peroxybenzoate, 0.6 parts of co-crosslinking agent triallyl isocyanurate, 0.15 parts of coupling agent vinyltrimethoxysilane prepolymer, 1 part light stabilizer bis(2,2,6,6-tetramethyl-4-piperidinyl) sebacate, 1.5 parts UV absorber 2-(2' -Hydroxy-3',5'-di-tert-phenyl)-5-chlorobenzotriazole.

[0054] Black high-reflection layer: every 100 parts of ethylene-vinyl acetate resin contains 8 parts of black infrared reflective filler, 1.5 parts of diffuse reflection filler hollow glass mi...

Embodiment 2

[0060] The difference from Example 1 is that the thickness of the low pre-crosslinked layer accounts for 1 / 3 of the overall thickness.

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Abstract

The invention provides a black infrared reflection type packaging adhesive film which comprises a low-pre-crosslinking transparent layer and a black high-reflection layer, and a preparation method of the black infrared reflection type packaging adhesive film comprises the following steps: uniformly mixing diffuse reflection filler and ethylene copolymer, extruding to prepare diffuse reflection master batch, uniformly mixing black infrared reflection filler and ethylene copolymer, and extruding to prepare infrared reflection color master batch; uniformly stirring the ethylene copolymer, an initiator, a cross-linking agent, a coupling agent, an antioxidant and an ultraviolet light absorber to obtain low pre-crosslinking transparent layer slurry, and uniformly stirring the ethylene copolymer, the infrared reflection color master batch, the diffuse reflection master batch, the initiator, the cross-linking agent, the coupling agent, the antioxidant and a light stabilizer to obtain black high-reflection layer slurry; extruding the low-pre-crosslinking transparent layer slurry and the black high-reflection layer slurry, and performing film casting, cooling and irradiation treatment to obtain the packaging adhesive film, and the packaging adhesive film reduces the subfissure rate, reduces overflowed black, is black in appearance, is high in reflectivity, reduces the heat effect, reduces the working temperature and improves the working efficiency.

Description

technical field [0001] The invention belongs to the technical field of photovoltaic module encapsulation, and in particular relates to a black infrared reflective encapsulation adhesive film and a preparation method thereof. Background technique [0002] With the continuous advancement of photovoltaic module technology and the continuous decline in installed costs, photovoltaic power generation, as a clean, low-carbon, and price-competitive new energy source, has attracted more and more attention. It has entered a period of comprehensive price parity, and the global photovoltaic market has begun a new round of growth. The scope of application of photovoltaic modules is also becoming wider and wider. In addition to large-scale ground photovoltaic power plants developed along the mode of centralized power generation and transmission, building photovoltaic power generation systems developed along the mode of distributed power generation should be more popular at present. Some pe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/10C09J123/08C09J11/04H01L31/048H01L31/054
CPCC09J7/10C09J123/0853C09J11/04H01L31/0481H01L31/0547C08K2003/2241C09J2301/208C09J2203/33C08K3/24C08K3/22C08K7/28Y02E10/52
Inventor 徐炜琴吕松黄宝玉张刚季志超刘俊陈书亮杨求平吴斌吴丰华
Owner CHANGZHOU SVECK PHOTOVOLTAIC NEW MATERIAL