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A cleaning agent that can effectively remove white frost residues from circuit boards

A technology of board white frost and cleaning agent, applied in the field of cleaning agent, can solve the problems such as difficult to remove white frost residue, and achieve the effect of preventing redeposition of dirt, improving electrical performance, and strong dispersing ability

Active Publication Date: 2018-01-09
广东中实金属有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing cleaning products are also difficult to remove this kind of white frost residue

Method used

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  • A cleaning agent that can effectively remove white frost residues from circuit boards
  • A cleaning agent that can effectively remove white frost residues from circuit boards
  • A cleaning agent that can effectively remove white frost residues from circuit boards

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 40g dimethyl glutarate, 30g dimethyl succinate and 25g dimethyl adipate are compounded in a storage container, mixed and stirred for 0.5 hour to prepare compounded dibasic acid dimethyl, and compounded 15g of dibasic acid dimethyl ester, 2.0g of lauryl glucoside, 1.0g of ethanolamine, 1.2g of polyaspartic acid and 80.8g of absolute ethanol were added in turn to the reaction kettle and stirred for 1.0 hour, and then rested for 0.5 hour. Invented detergent product.

Embodiment 2

[0028] 35g dimethyl glutarate, 35g dimethyl succinate and 20g dimethyl adipate are compounded in a storage container, mixed and stirred for 1.0 hour to prepare compounded dibasic acid dimethyl, take compounded Dibasic acid dimethyl ester 18g, lauryl glucoside 3.2g, ethanolamine 0.5g, polyaspartic acid 3.0g and anhydrous ethanol 75.3g, add into the reaction kettle in turn and stir for 0.8 hours, and stand still for 0.5 hours. Invented detergent product.

Embodiment 3

[0030] 38g dimethyl glutarate, 32g dimethyl succinate and 23g dimethyl adipate are compounded in a storage container, mixed and stirred for 0.8 hour to prepare compounded dibasic acid dimethyl, take compounded 16g of dibasic acid dimethyl ester, 4.0g of lauryl glucoside, 0.8g of ethanolamine, 2.0g of polyaspartic acid and 77.2g of anhydrous ethanol are added to the reaction kettle in turn and stirred for 0.5 hours, and then stand still for 0.5 hours. Invented detergent product.

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Abstract

The invention relates to a cleaning agent capable of effectively eliminating white frost residue on a circuit board. The cleaning agent capable of effectively eliminating the white frost residue on the circuit board comprises the following components: 15-18% of compound binary acid dimethyl ester, 2-4% of dodecyl glucoside, 0.5-1.0% of ethanol amine, 1-3% of poly aspartic acid and the balance of absolute ethyl alcohol raw material. The cleaning agent provided by the invention has capability of effectively eliminating the white frost residue on the circuit board, can improve electrical performances of the circuit board, is an environmental-friendly high-boiling point solvent and can be automatically biodegraded; besides, the cleaning agent provided by the invention has the advantages and beneficial effects of extremely strong sequestration dispersive capacity, strong adsorbability, good compatibility of components and prevention of dirt redeposition.

Description

technical field [0001] The invention relates to a cleaning agent capable of effectively removing white frost residues on circuit boards, which belongs to the field of electronic materials. Background technique [0002] At present, after soldering and cleaning the PCB boards of electronic information products, some residues similar to frost remain on the board surface. This is a problem that has not been solved for a long time in the PCB board cleaning process, and it is also a problem that solvent-based PCB board cleaning agents have not been able to break through. White frost residues belong to rosin or other organic residues. When using rosin resin flux and solder paste to assemble and weld circuit boards, under high temperature soldering conditions, white rosin salt residues are often formed on the surface of circuit boards, while water-soluble The content of halides and organic acids in the flux is relatively high, and it has strong acidity. When soldering at high temper...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11D1/66C11D3/60C11D3/30C11D3/43C11D3/37
Inventor 孟昭辉方喜波杨嘉骥梁静珊孙玉欣方瀚楷何淑芳方瀚宽孙淼
Owner 广东中实金属有限公司
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