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Photovoltaic grade ink composition and patterned transparent packaging backplane for inkjet printing process

An ink composition and patterning technology, applied in ink, photovoltaic power generation, semiconductor devices, etc., can solve problems such as nozzle clogging, and achieve the effect of improving interface affinity, high reflectivity, and optimizing formulation system

Active Publication Date: 2021-12-21
SUZHOU FIRST PV MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide an improved ink composition and its preparation method in order to overcome the deficiencies of the prior art. The ink composition can not only be used for inkjet printing on the backplane of photovoltaic module packaging, but also overcome problems such as nozzle clogging , so that the ink composition can work continuously for a long time

Method used

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  • Photovoltaic grade ink composition and patterned transparent packaging backplane for inkjet printing process
  • Photovoltaic grade ink composition and patterned transparent packaging backplane for inkjet printing process
  • Photovoltaic grade ink composition and patterned transparent packaging backplane for inkjet printing process

Examples

Experimental program
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Effect test

Embodiment 1

[0059] The transparent packaging backplane provided in this embodiment includes a transparent substrate and a patterned reflective coating formed on the transparent substrate. The structure of the transparent substrate is as follows: figure 2 As shown, it includes a transparent substrate and a weather-resistant coating coated on both surfaces of the transparent substrate. Specifically, the transparent substrate in this example is a commercially available double-sided coated transparent backplane after plasma EDM treatment. (Purchased from Foster Company, model number is BEC-301T.)

[0060] The raw material formula of the photovoltaic grade ink composition used in the transparent packaging backplane in this example is as follows (parts by mass):

[0061]

[0062]

[0063] In this example, the compatibilizer was prepared by the following method: 30 g of ethyl acetate and 70 g of xylene mixed solvent were added to a four-necked flask equipped with reflux, stirring, thermom...

Embodiment 2

[0067] The transparent packaging backplane provided in this embodiment includes a transparent substrate and a patterned reflective coating formed on the transparent substrate. The structure of the transparent substrate is as follows: image 3 As shown, specifically, the transparent substrate in this example is selected from the TPC structure transparent backplane purchased in the market (the inner layer is a transparent coating, and the outer layer is compounded with DuPont transparent T film, purchased from Suzhou Jolywood Photovoltaic New Materials Co., Ltd. company, the model is FFC-JW30.), where the inner layer is treated with plasma EDM.

[0068] The raw material formula of the photovoltaic grade ink composition used in the transparent packaging backplane in this example is as follows (parts by mass):

[0069] GK-570 (Dakin of Japan) 40 copies

[0070] FB8718 (Shanghai Fengbiao Chemical Technology) 5 copies

[0071] LR-7514 (Shanghai Zhongrong New Material Technology) 3...

Embodiment 3

[0086] The transparent packaging backplane provided in this embodiment includes a transparent substrate and a patterned reflective coating formed on the transparent substrate. The structure of the transparent substrate is as follows: Figure 5 As shown, specifically, the transparent substrate in this example is selected from a transparent polyester film (PET) with a three-layer co-extruded structure that is resistant to hydrolysis and ultraviolet rays, and the surface is treated with plasma electric discharge.

[0087] The raw material formula of the photovoltaic grade ink composition used in the transparent packaging backplane in this example is as follows (parts by mass):

[0088] VESTOPLAST 708 (Evonik, Germany) 30 copies

[0089] DYNAPOL L210 (Evonik, Germany) 5 copies

[0090] E54 (Sanmu Group) 5 copies

[0091] LR-7514 (Shanghai Zhongrong New Material Technology) 2.50 copies

[0092] NDZ-201 (Nanjing Shuguang Chemical) 1.0 parts

[0093] Compatibilizer 9.0 parts

[...

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Abstract

The invention relates to a photovoltaic-grade ink composition and a patterned transparent packaging backplane of an inkjet printing process. The ink composition includes a matrix resin, a color paste, an adhesion promoter, an interface regulator, an ink additive, a curing agent, Diluents and extenders. The ink composition has the characteristics of long-term stability, high pigment content, and functionalized matrix components. The prepared reflective coating has better reflectivity and weather resistance, and is suitable for inkjet printing processes, which overcomes the particle size of conventional inks. Large, easy to stick to the cavity in the flowing state or easy to stratify, crystallize, agglomerate pigments and fillers, and separate out to cause problems such as easy blockage of the nozzle when external factors fluctuate. The backsheet of the present invention optimizes the interface affinity and matching between the coating and packaging films such as EVA and POE, and significantly improves the bonding strength between the non-polar component film and the coating, even without external corona Or the plasma treatment process can also meet the adhesion performance requirements between the coating and the adhesive film.

Description

technical field [0001] The invention belongs to the technical field of photovoltaic encapsulation materials, and in particular relates to a photovoltaic ink composition and a patterned transparent encapsulation backplane of an inkjet printing process. Background technique [0002] In recent years, photovoltaic power generation, as a new energy industry, has been supported by national policies and has developed rapidly. The installed capacity of photovoltaic power generation is increasing year by year. At present, the photovoltaic industry has shifted its development focus from expanding its scale to high-quality development by continuously absorbing new technologies, and actively promoting the process of photovoltaic power grid parity. At present, improving the power generation efficiency of components is an important and effective method to reduce the cost of power generation of components and achieve grid parity. Bifacial modules stand out from many high-efficiency modul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/322C09D11/36C09D11/38C09D11/30H01L31/048
CPCC09D11/322C09D11/36C09D11/38C09D11/30H01L31/0481Y02E10/50
Inventor 张宇辉杨小旭李楠楠曹诗易
Owner SUZHOU FIRST PV MATERIAL CO LTD
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