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A special anti-pid POE adhesive film for photovoltaic double glass module packaging and preparation method thereof

A double-glass module, photovoltaic technology, applied in photovoltaic power generation, films/sheets without carriers, adhesives, etc., can solve the problems of poor anti-PID effect, high water vapor transmission rate, low water vapor transmission rate, etc., to achieve performance improvement , the effect is obvious, the effect of reducing the cost of electricity

Active Publication Date: 2021-10-26
MING CROWN ADVANCED MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the packaging films used for double-glass modules are mainly EVA film and POE film, but the EVA film has the defects of low mechanical strength, high water vapor transmission rate, high water absorption rate, and poor weather resistance, which lead to the defects of double-glass component packaging. The anti-PID effect of the front and back of the rear component is poor
As a non-polar material, POE film has the advantages of low water vapor transmission rate and high volume resistivity, so it is more suitable for the packaging of double-glass modules. Compared with EVA film, the anti-PID effect of the module has been significantly improved, but in During the aging test and long-term use of the module, it was found that the POE film also has the risk of PID failure on the back of the double-sided battery. The general industry requires that the power attenuation of the double-glass module battery be controlled within 5.0% after 192 hours of PID.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A special anti-PID POE adhesive film for photovoltaic double-glass module packaging, including the following raw materials in parts by weight:

[0042] POE graft modified resin 1 part

[0043] The first POE resin 90 parts

[0044] UV absorber 0.01 parts

[0045] PID regulator 0.1 parts

[0046] Light stabilizer 0.01 parts

[0047] 0.5 parts of cross-linking auxiliary agent

[0048] 0.1 parts of coupling agent

[0049] Antioxidant 0.01 parts

[0050] 0.5 parts of crosslinking agent.

[0051] The preparation method of the PID regulator comprises the following steps: the nano-rare earth oxide Re 2 o 3 Weigh the proportion with the analytically pure oxide according to the weight ratio of 0.8:0.6, disperse it with a ball mill, place it in a vacuum drying oven at 110°C for pretreatment for 6 hours, take it out, and put the sample at a stirring speed of 750r / min and a nitrogen flow rate of 0.9 Dissolve in 1:1 hydrochloric acid at L / min, dilute with distilled water unt...

Embodiment 2

[0067] A special anti-PID POE adhesive film for photovoltaic double-glass module packaging, including the following raw materials in parts by weight:

[0068] POE graft modified resin 7 parts

[0069] The first POE resin 92 parts

[0070] UV absorber 0.2 parts

[0071] PID regulator 0.2 parts

[0072] Light stabilizer 0.2 parts

[0073] 0.2 parts of cross-linking auxiliary agent

[0074] 0.2 parts of coupling agent

[0075] Antioxidant 0.2 part

[0076] 1 part of crosslinking agent.

[0077] The preparation method of the PID regulator comprises the following steps: the nanometer rare earth oxide La 2 o 3(where Re=La, Pr, Nd, Sm, Eu, Gd) and the analytically pure oxides are weighed according to the weight ratio of 0.9:0.7, dispersed by a ball mill and placed in a vacuum oven at 115°C for 6.5 hours of pretreatment , take it out, dissolve the sample in 1:1 hydrochloric acid at a stirring speed of 775r / min and a nitrogen flow rate of 0.95L / min, dilute it with distilled wa...

Embodiment 3

[0093] A special anti-PID POE adhesive film for photovoltaic double-glass module packaging, including the following raw materials in parts by weight:

[0094] POE grafted modified resin 15 parts

[0095] The first POE resin 93 parts

[0096] 0.3 parts of UV absorber

[0097] PID regulator 0.3 parts

[0098] Light stabilizer 0.3 parts

[0099] 3 parts cross-linking aid

[0100] 0.3 parts of coupling agent

[0101] Antioxidant 0.3 parts

[0102] 3 parts of cross-linking agent.

[0103] The preparation method of the PID regulator comprises the following steps: the nanometer rare earth oxide Pr 2 o 3 Weigh the proportion with the analytically pure oxide according to the weight ratio of 1.0.2:0.8, use a ball mill to disperse it, place it in a vacuum drying oven at 120°C for 7 hours, take it out, and put the sample at a stirring speed of 800r / min and nitrogen Dissolve in 1:1 hydrochloric acid at 1L / min, dilute with distilled water until there is no white precipitate, then h...

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Abstract

The present invention relates to the technical field of solar cell encapsulating adhesive films, in particular to a special anti-PID POE adhesive film for packaging photovoltaic double-glass modules and a preparation method thereof. The POE adhesive film includes the following raw materials in parts by weight: POE grafted modified resin 1- 30 parts, 90-95 parts of the first POE resin, 0.01-0.5 parts of UV absorber, 0.1-0.5 parts of PID regulator, 0.01-0.5 parts of light stabilizer, 0.5-5 parts of cross-linking auxiliary agent, 0.1-0.1 parts of coupling agent 0.5 part, 0.01-0.5 part of antioxidant and 0.5-5 part of crosslinking agent. The POE adhesive film of the present invention has better anti-PID capability and anti-aging effect than the adhesive films used in the current industry, and can ensure that the power attenuation of the PID after 192 hours is controlled within 3.0%.

Description

technical field [0001] The invention relates to the technical field of solar cell packaging adhesive films, in particular to a special anti-PID POE adhesive film for photovoltaic double-glass module packaging and a preparation method thereof. Background technique [0002] With the depletion of fossil energy and the serious pollution of the earth's environment, more and more attention has been paid to renewable energy and various green energy. The use of solar power generation is also becoming more and more popular. Solar photovoltaic modules are devices that convert solar energy into electrical energy. With the use of solar modules in different environments, it is found that the photovoltaic modules applied under high temperature and high humidity conditions have long-term ion migration between the packaging material of the module battery and the upper glass under the action of high voltage, which makes the surface of the battery passive. The effect deteriorates, resulting ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J123/08C09J151/06C09J11/06C09J7/10C09J7/30H01L31/048
CPCC09J11/06C09J123/0815C09J2203/322C09J7/10H01L31/0481H01L31/0488C08L51/06C08K5/098Y02E10/50
Inventor 张伟祥张鹏闫洪嘉
Owner MING CROWN ADVANCED MATERIAL CO LTD