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Water-based cleaning agent for electronics and preparation method thereof

A technology of cleaning agent and electronic water, which is applied in the direction of detergent compounding agent, detergent composition, chemical instruments and methods, etc., and can solve the problems of solvent-based cleaning agent products with uneven quality, unsatisfactory cleaning effect, and environmental pollution.

Active Publication Date: 2013-07-10
深圳市同方电子新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The refinement of product spacing and the improvement of product cleanliness also increase the requirements for post-soldering cleaning; Non-environmentally friendly and highly toxic cleaning agents such as vinyl chloride have been phased out and restricted in use; while environmentally friendly and less toxic solvent-based cleaning agents are of mixed quality and unsatisfactory cleaning effect, and such products have a greenhouse effect after entering the atmosphere. pollute the environment

Method used

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  • Water-based cleaning agent for electronics and preparation method thereof
  • Water-based cleaning agent for electronics and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] In parts by weight, it includes: 50 parts of ethylene glycol monobutyl ether, 29.5 parts of propylene glycol monomethyl ether, 10 parts of monoethanolamine, 0.5 parts of benzotriazole, and 10 parts of AEO-9;

[0013] Mix 50 parts of ethylene glycol monobutyl ether, 29.5 parts of propylene glycol monomethyl ether, 10 parts of monoethanolamine, 0.5 parts of benzotriazole, and 10 parts of AEO-9, and stir evenly;

[0014] Such as figure 1 As shown, the cleaning agent is mixed with water at a mass ratio of 1:4 and heated to 60°C. Deionized water is used for rinsing at a temperature of 50°C; the PCBA out of the furnace is put into the cleaning tank for 5 minutes of ultrasonic wave and then rinsed once. Rinse the tank until it is clean, then dry it, and wait for detection.

[0015] 1. Cleaning effect experiment:

[0016] Experimental equipment: 3 ultrasonic cleaning equipment, 1 hair dryer, 9 computer motherboards;

[0017] Experimental samples: imported electronic water-ba...

Embodiment 2

[0036] In parts by weight, including: 30 parts of ethylene glycol monoethyl ether, 20 parts of diethylene glycol monoethyl ether, 19.5 parts of propylene glycol monomethyl ether, 10 parts of dipropylene glycol monomethyl ether, 6 parts of monoethanolamine, 4 parts of triethanolamine, AEO -9: 4 parts, OP-106 parts, benzotriazole 0.3 parts, T7010.2 parts.

[0037] 30 parts of ethylene glycol monoethyl ether, 20 parts of diethylene glycol monoethyl ether, 19.5 parts of propylene glycol monomethyl ether, 10 parts of dipropylene glycol monomethyl ether, 6 parts of monoethanolamine, 4 parts of triethanolamine, AEO-9: 4 parts, Mix OP-106 parts, benzotriazole 0.3 parts, T7010.2 parts, and stir evenly;

[0038] The cleaning agent is mixed with water at a mass ratio of 1:3 and heated to 60°C, rinsed with deionized water at a temperature of 50°C; put the PCBA out of the furnace into the cleaning tank for 5 minutes and then put it into the rinse tank for rinsing until Clean and dry, pend...

Embodiment 3

[0060] In parts by weight, including: 25 parts of diethylene glycol monobutyl ether, 25 parts of diethylene glycol monoethyl ether, 20 parts of propylene glycol monomethyl ether, 20 parts of dipropylene glycol monomethyl ether, 1 part of monoethanolamine, 1 part of diethanolamine , 1 part of triethanolamine, 1 part of hydroxyethylethylenediamine, 1 part of AEO, 1 part of NP, 1 part of OP, 1 part of TX, and 2 parts of LAS.

[0061] 25 parts of diethylene glycol monobutyl ether, 25 parts of diethylene glycol monoethyl ether, 20 parts of propylene glycol monomethyl ether, 20 parts of dipropylene glycol monomethyl ether, 1 part of monoethanolamine, 1 part of diethanolamine, 1 part of triethanolamine, Mix 1 part of hydroxyethylethylenediamine, 1 part of AEO, 1 part of NP, 1 part of OP, 1 part of TX, and 2 parts of LAS, and stir evenly;

[0062] The cleaning agent is mixed with water at a mass ratio of 1:3 and heated to 60°C, rinsed with deionized water at a temperature of 50°C; put...

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Abstract

The invention provides a water-based cleaning agent for electronics and a preparation method thereof. The water-based cleaning agent comprises the following ingredients in percentage by weight: 20-50% of glycol ethers, 25-40% of propylene glycol ethers, 15-25% of alcamines, 0-0.5% of corrosion inhibitor and 10-15% of surfactant. According to the water-based cleaning agent provided by the invention, the efficiency of cleaning lead-free soldering residues can be increased, and the requirements for environment friendliness are met, so that the cleaning agent can safely pass through a variety of test applications. The water-based cleaning agent provided by the invention is also applied to the SMT (Surface Mounting Technology) industry, e.g. the fields of PCBA (Printed Circuit Board Assembly), furnace fixtures, equipment, screen plates, steel meshes and the like and has an excellent cleaning effect.

Description

technical field [0001] The invention relates to an electronic water-based cleaning agent and a preparation method thereof. Background technique [0002] With the transformation of my country's manufacturing enterprises from labor-intensive to high-tech, in the field of electronic assembly, integrated circuits have changed from simple to complex, PCBA boards are getting smaller and component layouts are getting more and more compact. The refinement of product spacing and the improvement of product cleanliness also increase the requirements for post-soldering cleaning; Non-environmentally friendly and highly toxic cleaning agents such as vinyl chloride have been phased out and restricted in use; while environmentally friendly and less toxic solvent-based cleaning agents are of mixed quality and unsatisfactory cleaning effect, and such products have a greenhouse effect after entering the atmosphere. pollute the environment. Contents of the invention [0003] The technical p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D1/72C11D3/20C11D3/30C11D3/28C11D3/38C11D3/60C11D1/831H05K3/26
Inventor 邱海波肖德成
Owner 深圳市同方电子新材料有限公司
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