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Method for plating zinc on surface of glass powder

A technology of glass powder and surface pretreatment, which is applied in the direction of liquid chemical plating, metal material coating process, coating, etc., can solve the problems affecting the photoelectric conversion rate of solar cells, and achieve the effect of avoiding the impact and ensuring the photoelectric conversion rate

Pending Publication Date: 2021-05-28
JIANGSU BOQIAN NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the prior art, the object of the present invention is to provide a method for galvanizing the surface of glass powder, which has the ability to effectively solve the problem that zinc is evenly distributed between silver powder and glass powder in the slurry. Problems affecting the photoelectric conversion rate of solar cells

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A method for galvanizing the surface of glass powder, comprising the steps of:

[0039] Step 1. Put the glass powder into the cleaning agent for surface pretreatment. After cleaning, filter and dry to obtain the pretreated glass powder, wherein:

[0040] Surface pretreatment includes the following steps:

[0041] S1. Put the glass powder into a sodium hydroxide solution with a mass fraction of 3%, disperse it with ultrasonic stirring for 30 minutes, and wash it with deionized water;

[0042] S2. Put the glass powder passed through S1 into 15mol / L HF solution and 2.5mol / L NH 3 Ultrasonic stirring in the mixed solution of F solution for 15 minutes;

[0043] S3, after cleaning the glass powder in S2, obtaining pretreated glass powder after filtering and drying;

[0044] Step 2, put the pretreated glass powder into the reaction solution to react, so that zinc is coated on the peripheral side wall of the pretreated glass powder, and after filtering, the glass powder for c...

Embodiment 2

[0051] A method for galvanizing the surface of glass powder, comprising the steps of:

[0052] Step 1. Put the glass powder into the cleaning agent for surface pretreatment. After cleaning, filter and dry to obtain the pretreated glass powder, wherein:

[0053] Surface pretreatment includes the following steps:

[0054] S1. Put the glass powder into a sodium hydroxide solution with a mass fraction of 5%, disperse it with ultrasonic stirring for 30 minutes, and wash it with deionized water;

[0055] S2. Put the glass powder passed through S1 into 25mol / L HF solution and 1mol / L NH 3 Ultrasonic stirring in the mixed solution of F solution for 15 minutes;

[0056] S3, after cleaning the glass powder in S2, obtaining pretreated glass powder after filtering and drying;

[0057] Step 2, put the pretreated glass powder into the reaction solution to react, so that zinc is coated on the peripheral side wall of the pretreated glass powder, and after filtering, the glass powder for coati...

Embodiment 3

[0064] The difference between embodiment three and embodiment two is that the mass fraction of the sodium hydroxide solution in embodiment three is 10%.

[0065] After testing, the obtained glass powder has the effect of uniform galvanizing on the surface.

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Abstract

The invention discloses a method for plating zinc on the surface of glass powder, and relates to the technical field of photovoltaic. The method of the technical solution is characterized by comprising the following steps that 1, the glass powder is put into a cleaning agent to be subjected to surface pretreatment, and after being cleaned, the glass powder is filtered and dried to obtain pretreated glass powder; 2, the pretreated glass powder is put into reaction liquid to react, the peripheral side wall of the pretreated glass powder is coated with zinc, and filtering is performed to obtain plated glass powder; and 3, the plated glass powder is sequentially cleaned and dried to obtain the surface-galvanized glass powder. According to the method, the pretreated glass powder which is high in surface cleanliness and easy to plate is obtained after alkali washing and acid washing; the reaction speed of zinc is then controlled by combining a reducing agent and a complexing agent, so that the zinc is uniformly distributed on the surface of the pretreated glass powder; and therefore, the effect that the zinc is uniformly distributed between the silver powder and the glass powder is achieved, the influence on the photoelectric conversion rate of a solar cell is effectively avoided, and the photoelectric conversion rate of the solar cell is ensured.

Description

technical field [0001] The invention relates to the field of photovoltaic technology, in particular to a method for galvanizing the surface of glass powder. Background technique [0002] Electronic silver paste is a composite material that integrates a number of advanced materials. It is mainly composed of inorganic non-metallic, polymer and metal materials. It is widely used in the electronic information industry, such as battery electrodes, membrane switches, integrated circuits, flexible circuits, Sensitive components, conductive adhesives and other electronic components. With the development of electronic technology and the increase of people's demand for electronic products, the electronic silver paste industry has developed rapidly. As a country with a large demand for electronic silver paste, China's research started relatively late, mainly in the late 1980s, and there were fewer types. Therefore, research and development of independent electronic silver paste has b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C18/52C23C18/18
CPCC23C18/52C23C18/1882
Inventor 王锴尧王翠霞
Owner JIANGSU BOQIAN NEW MATERIALS