Application of a water-based cleaning agent with strong dispersing ability

A technology of water-based cleaning agent and dispersing ability, applied in detergent composition, detergent compounding agent, cleaning method using liquid, etc., can solve problems such as poor cleaning effect, environmental pollution, solder joint corrosion, etc., and achieve optimal Cleaning effect, improving economic benefits, and not easy to decompose

Active Publication Date: 2021-10-26
CHONGQING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a water-based cleaning agent with strong dispersibility and a cleaning method thereof, so as to solve the problem of granular pollution of rosin and other lipid compounds in existing cleaning agents. Problems such as poor cleaning effect, easy corrosion with solder joints, high cost and environmental pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A water-based cleaning agent with strong dispersibility is composed of the following components by weight percentage: the total mass ratio of narrow-distributed fatty alcohol polyoxyethylene ether and coconut oil fatty acid diethylamide is 5%, and the narrow-distributed fatty alcohol polyoxyethylene ether is 5%. The mass ratio of oxyethylene ether to coconut oil fatty acid diethylamide is 1:1; benzotriazole 0.01%; polyether and various active additives refined silicon-free defoamer 0.1%; ionized water.

[0023] Use a precision balance to measure the raw materials of each component according to the ingredients and content ratios contained in the water-based cleaning agent, and put them into the reaction kettle, and continue to stir until completely mixed under normal temperature and pressure (can be heated to about 35°C as needed) Finally, the stirring is stopped to obtain the water-based cleaning agent.

[0024] Its preparation method comprises the following steps:

...

Embodiment 2

[0030] A water-based cleaning agent with strong dispersibility is composed of the following components by weight percentage: the total mass ratio of narrow-distributed fatty alcohol polyoxyethylene ether and coconut oil fatty acid diethylamide is 6%, and the narrow-distributed fatty alcohol polyoxyethylene ether is 6%. The mass ratio of oxyethylene ether to coconut oil fatty acid diethylamide is 1:2; the mixture of sodium molybdate and benzotriazole is 0.05%; the silicon-free defoamer refined from polyether and various coagents is 0.12% ; The balance is deionized water.

[0031] Use a precision balance to measure the raw materials of each component according to the ingredients and content ratios contained in the water-based cleaning agent, and put them into the reaction kettle, and continue to stir until completely mixed under normal temperature and pressure (can be heated to about 35°C as needed) Finally, the stirring is stopped to obtain the water-based cleaning agent.

[0...

Embodiment 3

[0038] A water-based cleaning agent with strong dispersibility is composed of the following components by weight percentage: the total mass ratio of narrow-distributed fatty alcohol polyoxyethylene ether and coconut oil fatty acid diethylamide is 7.5%, and the narrow-distributed fatty alcohol polyoxyethylene ether is 7.5%. The mass ratio of oxyethylene ether to coconut oil fatty acid diethylamide is 2:3; sodium molybdate 0.08%; silicon-free defoamer refined from polyether and various active additives 0.15%; the balance is deionized water .

[0039] Use a precision balance to measure the raw materials of each component according to the ingredients and content ratios contained in the water-based cleaning agent, and put them into the reaction kettle, and continue to stir until completely mixed under normal temperature and pressure (can be heated to about 35°C as needed) Finally, the stirring is stopped to obtain the water-based cleaning agent.

[0040] Its preparation method compr...

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PUM

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Abstract

The invention provides a water-based cleaning agent with strong dispersibility and a cleaning method thereof. The cleaning agent includes a narrow distribution of fatty alcohol polyoxyethylene ether and a nonionic surfactant. The cleaning agent prepared by the invention has strong cleaning ability for granular pollutants wrapped by rosin or other lipid compounds, and can effectively remove pollutants in difficult-to-clean positions such as deep holes and blind holes. Moreover, the composition of the cleaning agent is simple and stable, does not delaminate, is not easy to volatilize, is not easy to decompose, and has no corrosive effect on solder joints; the source of raw materials is wide, cheap and easy to obtain, and the cost is low; the waste liquid treatment cost of the cleaning agent is low, It does not contain toxic substances such as sulfur, chlorine, benzene, and heavy metals, and is less harmful to humans and the environment. The cleaning process is easy to operate, no residue, high cleanliness, and bright solder joints. It has a wide range of application fields and has a good application prospect.

Description

technical field [0001] The invention belongs to the technical field of cleaning agents for the electronics industry, and in particular relates to a water-based cleaning agent with strong dispersing ability and a cleaning method thereof. Background technique [0002] PCB (Printed Circuit Board), the Chinese name is printed circuit board, also known as printed circuit board, printed circuit board, is an important electronic component, a support for electronic components, and a provider of electrical connections for electronic components. Because it is made using electronic printing, it is called a "printed" circuit board. Due to its printing process, there are usually more non-polar pollutants, polar pollutants, metal oxides and pollutants in the form of particles on the prepared PCB, and these pollutants are easy to penetrate into the PCB board. deep hole. In the preparation of PCB boards, rosin is usually used as flux for soldering. After rosin removes the oxide film on th...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C11D1/825C11D3/28C11D3/04C11D3/60B08B3/08
CPCC11D1/825C11D3/28C11D3/046B08B3/08C11D1/72C11D1/66C11D1/667C11D2111/22
Inventor甘贵生曹华东刘歆江兆琪梁仕发许惠斌吴懿平
OwnerCHONGQING UNIV OF TECH