Anti-PID POE adhesive film special for photovoltaic double-glass assembly packaging and preparation method thereof

A double-glass component and photovoltaic technology, applied in photovoltaic power generation, film/sheet without carrier, adhesive, etc., can solve the problems of poor anti-PID effect, high volume resistivity, low water vapor transmission rate, etc., and achieve improved electrical insulation Effects of performance, expansion of the scope of use, and improvement of effects

Active Publication Date: 2020-08-11
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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  • Anti-PID POE adhesive film special for photovoltaic double-glass assembly packaging and preparation method thereof
  • Anti-PID POE adhesive film special for photovoltaic double-glass assembly packaging and preparation method thereof
  • Anti-PID POE adhesive film special for photovoltaic double-glass assembly packaging and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A special anti-PID POE adhesive film for photovoltaic double-glass module packaging, including the following raw materials in parts by weight:

[0034]

[0035] 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 state, dilute with distilled water until there is no white precipitate, then heat and co-precipitate with oxalic acid at a weight ratio of 1:1, then place the mixed solution for 22 hours to filter, wash, and dry to obtain PID regulator; more preferably, the analytically pure oxidation is made of Bi 2 o 3 , SiO 2 、Al 2 o 3 and MIO in a weight ratio of 0.8:0.6:0.1:0....

Embodiment 2

[0051] A special anti-PID POE adhesive film for photovoltaic double-glass module packaging, including the following raw materials in parts by weight:

[0052]

[0053] 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 then placed in a 115°C vacuum oven for pretreatment for 6.5h , 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 water until no white precipitate is present, and then heat it together with oxalic acid at a weight ratio of 1:1. Precipitation, after which the mixed solution is placed for 23h to filter, wash, and dry to obtain a PID regulator; more preferably, the analytically pure oxidation is made of Bi 2 o 3 , SiO 2 、Al 2 o 3 and MIO in a w...

Embodiment 3

[0069] A special anti-PID POE adhesive film for photovoltaic double-glass module packaging, including the following raw materials in parts by weight:

[0070]

[0071] 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 heat and co-precipitate with oxalic acid at a weight ratio of 1:1, then place the mixed solution for 24 hours to filter, wash, and dry to obtain PID regulator; more preferably, the analytically pure oxidation is made of Bi 2 o 3 , SiO 2 、Al 2 o 3 and MIO in a weight ratio of 1.0:0.8:0.3:0.6.

[0072] Described POE graft...

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Abstract

The invention relates to the technical field of solar cell packaging adhesive film, in particular to an anti-PID POE adhesive film special for photovoltaic double-glass assembly packaging and a preparation method thereof. The anti-PID POE adhesive film is prepared from the following raw materials in parts by weight: 1 to 30 parts of POE graft modified resin; 90 to 95 parts of first POE resin, 0.01to 0.5 part of an ultraviolet absorbent, 0.1 to 0.5 part of a PID regulator, 0.01 to 0.5 part of a light stabilizer, 0.5 to 5 parts of a cross-linking auxiliary agent, 0.1 to 0.5 part of a coupling agent, 0.01 to 0.5 part of an antioxidant and 0.5 to 5 parts of a cross-linking agent. Compared with an adhesive film used in the current industry, the POE adhesive film provided by the invention has better PID resistance and aging resistance, and can ensure that the power attenuation of PID is controlled within 3.0% after 192 hours.

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 Applications(China)
IPC IPC(8): C09J123/08C09J151/06C09J11/06C09J7/10H01L31/048
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
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