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Environment-friendly cleaning agent for electronic industry

An electronic industry and environmentally friendly technology, applied in the field of cleaning agents, can solve problems such as loss of consciousness and death

Active Publication Date: 2014-04-09
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

[0005] Chinese patents CN101671603 and CN101805675A both use n-hexane to replace halogenated hydrocarbons such as trichlorethylene to clean residues after electronic soldering. This type of cleaning agent has achieved a relatively satisfactory cleaning effect and certain environmental protection requirements, but n-hexane can Accumulation, long-term exposure to n-hexane can lead to chronic poisoning symptoms such as headache, fatigue, numbness of limbs, etc., and severe cases can lead to loss of consciousness and even death

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] In the present embodiment, the environment-friendly type cleaning agent for electronic industry is made up of the components of following weight:

[0020]

[0021] The preparation method of the above-mentioned environment-friendly cleaning agent for the electronic industry is as follows: 2-methylpentane, absolute ethanol and isopropanol are added to the reaction kettle according to the above weights in sequence, stirred for 10 minutes, and the stirring speed is 55 rpm, Then add 200g of propylene glycol methyl ether, and then stir for 30 minutes at a stirring speed of 60 rpm to obtain the environment-friendly cleaning agent for the electronics industry of this embodiment.

[0022] Cleaning effect test:

[0023] Test method: Take 10.0g of solder paste (model WTO-LF2000, manufactured by Shenzhen Vitec New Materials Co., Ltd.), place it on a 10×10cm copper sheet, heat and melt it with an electric furnace, and wait until the solder paste is completely melted into a tin bl...

Embodiment 2

[0027] In the present embodiment, the environment-friendly type cleaning agent for electronic industry is made up of the components of following weight:

[0028]

[0029] The preparation method of the above-mentioned environment-friendly cleaning agent for the electronic industry is as follows: 2-methylpentane, dehydrated alcohol and isopropanol are added to the reaction kettle in sequence according to the above weight, stirred for 15 minutes, and the stirring speed is 50 rpm, Then add 150 g of ethylene glycol monoethyl ether, and then stir for 40 minutes at a stirring speed of 55 rpm to obtain the environment-friendly cleaning agent for the electronics industry of this embodiment.

[0030] The cleaning effect test method of this embodiment is the same as that of Example 1, and its test results are as shown in Table 1.

Embodiment 3

[0032] In the present embodiment, the environment-friendly type cleaning agent for electronic industry is made up of the components of following weight:

[0033]

[0034] The preparation method of the above-mentioned environment-friendly cleaning agent for the electronic industry is as follows: 2-methylpentane, dehydrated alcohol and isopropanol are sequentially added to the reaction kettle according to the above weight, stirred for 10 minutes, and the stirring speed is 65 rpm, Then add 70g of ethylene glycol monoethyl ether and 30g of dipropylene glycol dimethyl ether, and then stir for 35 minutes at a stirring speed of 65 rpm to obtain the environment-friendly cleaning agent for the electronics industry of this embodiment.

[0035] The cleaning effect test method of this embodiment is the same as that of Example 1, and its test results are as shown in Table 1.

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Abstract

The invention provides an environment-friendly cleaning agent for an electronic industry. The environment-friendly cleaning agent is composed of the following components by weight: 45-70% of 2-methyl pentane, 15-25% of absolute ethyl alcohol, 5-10% of isopropanol and 10-20% of ether solvent. A primary solvent of the environment-friendly cleaning agent for the electronic industry is the 2-methyl pentane; a toxic property of the 2-methyl pentane on human bodies is one twentieth of normal hexane; the 2-methyl pentane has specially good dissolving capacity on rosin in scaling powder; the ether solvent has good dissolving capacity on polar materials such as organic acid in the scaling powder; and the absolute ethyl alcohol has good greasy dirt removing functions. The environment-friendly cleaning agent for the electronic industry does not contain halohydrocarbon such as the normal hexane and trichloroethylene, and has no environmental effect caused by ozone depletion. The environment-friendly cleaning agent for the electronic industry is basically nonhazardous to human bodies.

Description

technical field [0001] The invention relates to a cleaning agent, in particular to an environment-friendly cleaning agent for the electronic industry. Background technique [0002] With the popularization of high-density and fine-pitch electronic products, the requirements for the reliability and cleanliness of electronic products are getting higher and higher. [0003] After electronic assembly and soldering, the rosin in the flux and various pollutants remain on the circuit board. If the residue is not cleaned or cleaned, it will not only affect the appearance of the product, but also slowly corrode the solder joints, especially Corrosion and leakage are more likely to be caused in high temperature and high humidity environment, thus affecting the long-term electrical safety of the product. [0004] Many manufacturers use trichlorethylene, tetrachlorethylene and other halogenated hydrocarbons to clean the residues after welding. These halogenated hydrocarbon solvents have...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11D7/26C11D7/24C11D7/50C11D11/00
Inventor 唐欣吴晶廖高兵刘竞曹建峰张鸣玲
Owner 深圳市唯特偶新材料股份有限公司
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