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Water-based cleaning agent for electronic industry

An industrial water-based, cleaning agent technology, applied in the direction of detergent compounding agent, detergent composition, cleaning method using liquid, etc., can solve the problems of poor cleaning performance, low flash point, narrow operating process window, etc., and achieve good results , easy to use and operate, and the effect of large process window

Inactive Publication Date: 2018-01-12
深圳市唯特偶新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to meet the needs of environmental protection and the market, the industry generally uses low-molecular alcohols, alkanes, benzenes, ketones such as methanol, ethanol, isopropanol, n-hexane, ethylene diethane, toluene, xylene, acetone, butylene Ketones are cleaned with the above-mentioned single solvent or mixed solution instead of chlorofluorocarbon solvents, but this type of cleaning agent is characterized by volatile organic compounds (VOC), poor cleaning performance, weak detergency, low solubility, and fast volatilization , strong odor, low flash point, flammable and explosive, narrow operating process window, prone to safety accidents in the process of transportation, storage, and use, and at the same time has a certain poisonous effect on the body of the operator, seriously endangering the personal life of the operator Safety and Environmental Safety
In addition, it is basically a large amount of volatilization during the use of downstream products of petroleum, which is also a huge waste of non-renewable resources. Volatile organic compounds (VOC) can also cause damage to the atmospheric ozone layer when they are emitted into the air. Some VOC volatile organic solvents will gradually become banned substances for environmental protection

Method used

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  • Water-based cleaning agent for electronic industry
  • Water-based cleaning agent for electronic industry
  • Water-based cleaning agent for electronic industry

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A water-based cleaning agent for the electronics industry, the mass ratio of its components is:

[0024]

[0025] The specific preparation method is as follows:

[0026] At normal temperature and pressure, in a reactor with a stirrer, add deionized water to start stirring, first add potassium silicate to dissolve completely, then add triethanolamine, ethanol, diethylene glycol monomethyl ether, propylene glycol methyl ether, Dimethyl glutarate, ethyl lactate, nonylphenol polyoxyethylene ether, isooctylphenol polyoxyethylene ether, sodium dodecylbenzenesulfonate and SJ-200 are continuously stirred until the solid material is completely dissolved and mixed evenly Combine, stop stirring. After standing and filtering, it becomes a water-based cleaning agent for electronics industry of the present invention.

Embodiment 2

[0028] A water-based cleaning agent for the electronics industry, the mass ratio of its components is:

[0029]

[0030] Specific preparation method:

[0031] At normal temperature and pressure, in a reactor with a stirrer, add deionized water to start stirring, first add sodium silicate

[0032] After completely dissolving, add diethanolamine, isopropanol, propylene glycol methyl ether, diethylene glycol ethyl ether, dimethyl succinate, diethyl malonate, fatty alcohol polyoxyethylene ether, alkylphenol polyoxyethylene ether , Sodium dodecylbenzenesulfonate and SJ-210 continue to stir until the solid material is completely dissolved, mix well, and stop stirring. After standing and filtering, it becomes a water-based cleaning agent for electronics industry of the present invention.

Embodiment 3

[0034] A water-based cleaning agent for the electronics industry, the mass ratio of its components is:

[0035]

[0036]

[0037] Specific preparation method:

[0038] At normal temperature and pressure, in a reaction kettle with a stirrer, add deionized water to start stirring, first add potassium silicate to completely dissolve, then add 3-propanolamine, isopropanol, ethylene glycol ethyl ether, Propylene glycol monomethyl ether, dimethyl adipate, butyl acetate, nonylphenol polyoxyethylene ether, isooctylphenol polyoxyethylene ether, sodium dodecylbenzenesulfonate and SJ-215 are continuously stirred until solid material Melt completely, mix well, stop stirring. After standing and filtering, it becomes a water-based cleaning agent for electronics industry of the present invention.

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PUM

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Abstract

The invention discloses a water-based cleaning agent for electronic industry. The water-based cleaning agent comprises the following components in percentage by mass: 0.5-2.0 percent of organic aminealkali, 0.5-1.0 percent of special inorganic salt, 3.0-10.0 percent of a co-solvent bactericide, 1.5-4.0 percent of a co-solvent enhancer, 1.0-2.5 percent of a surfactant, 0.2-0.5 percent of a corrosion inhibitor, 0.1-0.4 percent of a de-foaming agent and the balance of deionized water. The water-based cleaning agent disclosed by the invention is completely halogen-free and VOC-free, meets the environmentally-friendly requirement, has a cleaning effect and a decontamination ability completely achieving those of a perchlorofluorocarbon solvent and a VOC solvent, is non-toxic and non-corrosive,does not generate public hazard substances and is convenient to use and operate and free from pollution to an environment.

Description

technical field [0001] The invention relates to an industrial cleaning agent, in particular to a halogen-free and environment-friendly cleaning agent suitable for cleaning residues on board surfaces and component surfaces of electronic products after welding. Background technique [0002] In the current electronic assembly connection, flux, solder paste, and patch glue (as a filling adhesive) are mainly used as soldering carriers. However, the components of flux, solder paste, and patch glue are complex, usually composed of rosin, resin, and organic active agents. , surfactants, solvents and other components. These substances are usually insoluble in water. In addition, the wave furnace and reflow oven used for soldering have used flux, solder paste, and solvents in the adhesive for a long time at high temperatures to volatilize. ), whose residues are very difficult to clean. In the early stage, perchlorofluorocarbon solvents such as chloroform, trichloroethane, and trichl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D1/831C11D3/00C11D3/08C11D3/20C11D3/28C11D3/30C11D3/32C11D3/34C11D3/48C11D3/60B08B3/08B08B3/12
Inventor 吴晶郑世忠蒋乙秋李维俊廖高兵
Owner 深圳市唯特偶新材料股份有限公司