Water-reducible cleaning agent for integrated circuit board scaling powder

An integrated circuit and water-diluted technology, applied in the field of cleaning agent, can solve the problems of difficult drying and slow volatilization speed, and achieve the effect of stable cleaning agent, moderate volatilization degree and convenient use

Inactive Publication Date: 2017-01-11
TIANJIN PRIMETECH CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this invention, alcohol ethers and alcohol amine organic solvents are directly mixed with water, which is easy to be layered, and it is not easy to dry when diluted, and the volatilization speed is slow when used alone

Method used

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  • Water-reducible cleaning agent for integrated circuit board scaling powder
  • Water-reducible cleaning agent for integrated circuit board scaling powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] In the reactor, mix diethylene glycol ethyl ether, diethylene glycol butyl ether, dipropylene glycol methyl ether, and dipropylene glycol butyl ether at the percentages of 20%, 20%, 10%, and 10% by weight, and add 10 % Ethanol, continue to stir and add 20% N-methyl-2-pyrrolidone, then add 5% high-purity water, stir for 15 minutes, add non-ionic surfactants FMEE, BEROL-226SA total 5%, continue to stir for 15 minutes to obtain a Water-diluted integrated circuit board flux cleaning agent, pay attention to keep the temperature of the reactor not exceeding 20 ℃ during the stirring process.

Embodiment 2

[0025] In the reaction kettle, mix diethylene glycol ether: diethylene glycol butyl ether: dipropylene glycol methyl ether in proportions of 30%, 10%, and 10% by weight, add 5% ethanol, continue to stir and add 20 %N-methyl-2-pyrrolidone, then add 20% high-purity water, stir for 15 minutes, add non-ionic surfactants FMEE, BEROL-226SA total 5%, continue stirring for 15 minutes to obtain a water-diluted integrated circuit board flux Cleaning agent, pay attention to keep the temperature of the reactor not exceeding 20°C during the stirring process.

Embodiment 3

[0027] In the reaction kettle, mix diethylene glycol butyl ether, dipropylene glycol methyl ether, and dipropylene glycol butyl ether at 10%, 20%, and 30% by weight, add 8% ethanol, continue to stir and add 10% N -Methyl-2-pyrrolidone, then add 14% high purity water, stir for 15 minutes, add non-ionic surfactants FMEE, BEROL-226SA total 8%, continue to stir for 15 minutes to obtain a water-diluted integrated circuit board flux cleaning agent , Pay attention to keep the temperature of the reactor not exceeding 20℃ during the stirring process.

[0028] The cleaning agent obtained in Examples 1-3 was sprayed directly on the circuit board with rosin flux and solder paste. The residual thickness of the rosin flux and solder paste was 1mm, so that the area with the flux and solder paste was completely covered by the cleaning agent. Cover, after standing at room temperature for 1 hour, directly rinse with water, the workpiece is as bright as new without flux residue.

[0029] If the resi...

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PUM

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Abstract

Water-reducible cleaning agent for integrated circuit board scaling powder, is characterized by being prepared from, by weight percentage: 30-60% of alcohol ether solvent with high boiling point, 10-20% of N-methyl-2-pyrrolidone, 2 -5% of nonionic surfactant, 5 -10% of ethanol and margin purified water. This cleaning agent is a neutral cleaner, contains no harmful fluoro-carbon solvent and halohydrocarbon solvent thus brings no harm to the human health. It is convenient, safety, environmental protected, non-toxic in application with a simple application method, which can be immersed, coated or used under ultrasonic cleaning, and capable of significantly improving the cleaning efficiency on the parts.

Description

Technical field [0001] The invention belongs to the technical field of cleaning agents, and particularly relates to a water-diluted integrated circuit board flux cleaning agent. Background technique [0002] In electronics, instrumentation, machinery and other manufacturing industries, the cleaning effect of flux is a key process affecting product quality. At present, flux cleaning agents are mostly prepared with fluorocarbon solvents and halogenated hydrocarbon solvents. Such cleaning agents contain carcinogens, which can easily cause skin cancer in direct contact with the human body, and are costly and cause serious environmental pollution. [0003] Through searching, the following three published patent documents were found: [0004] 1. A halogen-free environmentally friendly cleaning agent (CN101748003A), which is composed of the following substances in weight ratio: C9-C12 isoparaffin 5-10%, degreaser 1-8%, glycol ether 5-12% , Non-ionic surface active agent 1 to 5%, the remai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D1/825C11D3/20C11D3/32
CPCC11D1/825C11D1/74C11D3/201C11D3/32
Inventor 朱国梅李大庆王利波
Owner TIANJIN PRIMETECH CHEM
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