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Water base cleaning solution for cleaning solar battery electronic paste and preparation method thereof

A water-based cleaning solution, solar cell technology, applied in chemical instruments and methods, detergent compounding agents, detergent compositions, etc., can solve problems such as environmental and operator hazards, achieve low cost, no irritating odor, mild effect

Inactive Publication Date: 2012-10-03
JA SOLAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the low boiling point and high saturated vapor pressure of the solvent used, the volatilized solvent poses potential hazards to the environment and operators

Method used

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  • Water base cleaning solution for cleaning solar battery electronic paste and preparation method thereof
  • Water base cleaning solution for cleaning solar battery electronic paste and preparation method thereof
  • Water base cleaning solution for cleaning solar battery electronic paste and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The water-based cleaning solution for cleaning solar cell electronic paste is composed of the following components in weight percent:

[0047] C8-C10 APG 2%

[0048] Lauryl Fatty Alcohol Polyoxyethylene 4 Ether 1.5%

[0049] Ammonium Lauryl Sulfate 1.5%

[0050] Polyaspartic acid 0.5%

[0051] Ultrapure water balance.

[0052] At room temperature, add 2g C8-C10 APG, 1.5g lauryl fatty alcohol polyoxyethylene 4 ether, 1.5g ammonium lauryl sulfate into 50g ultrapure water, stir evenly to obtain liquid A; then dissolve with 30g ultrapure water 1g polyaspartic acid with a concentration of 50% (wt), stir evenly to obtain liquid B, mix with the above solutions A and B, adjust the pH between 6.5-7.5 with ammonia water, add ultrapure water to dilute to 100g, and stir magnetically at low speed After 10 min, stand still to obtain 100 g of cleaning solution.

[0053] It has excellent effect on wet paste and dried aluminum paste, and according to the current paste printing proc...

Embodiment 2

[0055] The water-based cleaning solution for cleaning solar cell electronic paste is composed of the following components in weight percent:

[0056] C8-C10 APG 2%

[0057] Lauryl fatty alcohol polyoxyethylene 3 ether 2%

[0058] Isomerized alcohol ether 1304 1%

[0059] Hydroxyethylidene diphosphonic acid 0.3%

[0060] 98% ethanol 10%

[0061] Ultrapure water balance.

[0062] Add 2g of C8-C10 APG into 20g of ultrapure water, stir and dissolve to obtain liquid A, dissolve 2g of lauryl fatty alcohol polyoxyethylene 3 ether and 1g of isomeric alcohol ether 1304 in 10g of 98% (V / V) ethanol , Stir evenly to obtain liquid B, dissolve 0.3g of hydroxyethylidene diphosphonic acid in 10g of ultrapure water to obtain liquid C, mix A and C and then add B, adjust the pH between 6.5-7.5 with ammonia water, add ultrapure water Dilute to 100g, stir magnetically at low speed for 10min, and let stand to obtain 100g cleaning solution.

[0063] Among them, the isomeric alcohol ether is EP...

Embodiment 3

[0066] The water-based cleaning solution for cleaning solar cell electronic paste is composed of the following components in weight percent:

[0067] C8-C10 APG 3.5%

[0068] Isomerized alcohol ether 1304 1.8%

[0069] Ammonium Lauryl Sulfonate 1.5%

[0070] Diethylenetriaminepentamethylenephosphonic acid 0.5%

[0071] Ultrapure water balance.

[0072] Add 2g of C8-C10 APG into 20g of ultrapure water, stir and dissolve to obtain liquid A, dissolve 1.8g of isomeric alcohol ether 1304 and 1.5g of ammonium laurylsulfonate in 20g of ultrapure water, and stir evenly to obtain liquid B. Dissolve 0.5g of ammonium diethylenetriaminepentamethylene phosphonate in 10g of ultrapure water to obtain liquid C, mix A, B, and C, adjust the pH between 6.5-7.5 with ammonia water, add ultrapure water to dilute to 100g, Stir with low-speed magnetic force for 10 minutes, and let stand to obtain 100 g of cleaning solution.

[0073] This kind of composition is effective for the aluminum paste af...

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Abstract

The invention discloses a water base cleaning solution for cleaning solar battery electronic paste. The water base cleaning solution comprises, by weight, 1-30% of emulsifying agent, 1-20% of penetrating agent, 0.5-10% of detergent, 0.1-10% of chelant, 0-30% of low alcohols and balanced ultrapure water. The invention further discloses a preparation method of the water base cleaning solution. The water base cleaning solution is even and stable aqueous solution, soft in properties, high in efficiency, environment-friendly, non-toxic, free of pungent smell, free of corrosiveness on equipment device, capable of clearly washing slurry pasted on the surface of a solid, simultaneously capable of reducing volatilization speed of an organic solvent in the slurry and low in cost.

Description

technical field [0001] The invention belongs to the technical field of photovoltaics, and in particular relates to a water-based cleaning solution for cleaning solar cell electronic paste and a preparation method thereof. Background technique [0002] Photovoltaic technology is a technology that uses large-area p-n junction diodes to convert solar energy into electrical energy. This p-n junction diode is called a solar cell, and now 80% of solar cells use crystalline silicon, and another doped layer is made on the intrinsically doped surface to form a large-area p-n junction. [0003] To make solar cells, it is necessary to assemble metal electrodes at both ends of the p-n junction. At present, Screen Print, that is, screen printing, is mostly used to coat metal electronic paste on both sides of the silicon wafer, and then through drying and sintering, the paste in the paste The metal Ag or Al and Si are mutually melted into alloy phases at different temperatures, and metal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D1/83C11D3/37C11D3/36C11D3/20
Inventor 杨伟强徐真真张鹏程
Owner JA SOLAR
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