Water-based cleaning solution for cleaning printed circuit board and preparation method thereof

A water-based cleaning solution and printed circuit board technology, applied in the field of cleaning agents, can solve the problems of inability to completely remove organic dirt and particle dirt, adverse effects of processes or applications, and complicated cleaning waste liquid treatment, achieving excellent cleaning performance and easy cleaning. Effect of recycling and low cost

Active Publication Date: 2015-09-09
东莞市伟思化学科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] (1) For many viscous waxy dirt, such as rosin, glue, and blind holes and gaps on workpieces, hydrophobic parts cannot completely remove organic dirt and particle dirt;
[0007] (2) The residues after cleaning with some water-based cleaning agents are difficult to remove, especially the residues in bl

Method used

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  • Water-based cleaning solution for cleaning printed circuit board and preparation method thereof
  • Water-based cleaning solution for cleaning printed circuit board and preparation method thereof
  • Water-based cleaning solution for cleaning printed circuit board and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A kind of water-based cleaning solution for cleaning printed circuit boards of the present invention comprises the following raw materials in mass percentage:

[0048]

[0049] The fatty amine in this embodiment is 3-methoxypropylamine.

[0050] The alcohol amine compound in this embodiment is N-methyldiethanolamine.

[0051] The alcohol ether compound in this embodiment is diethylene glycol monomethyl ether.

[0052] The surfactant of the present embodiment is alkyltrimethyl quaternary ammonium salt.

[0053] The corrosion inhibitor in this embodiment is sodium metasilicate.

[0054] The solvent of this embodiment is pure water.

[0055] A preparation method for a water-based cleaning solution for cleaning printed circuit boards, comprising the following processing steps:

[0056] Step A. Accurately weigh the amount of materials according to the formula, and place them in different containers;

[0057] Step B, adding the solvent into the reaction kettle, then a...

Embodiment 2

[0063] A kind of water-based cleaning solution for cleaning printed circuit boards of the present invention comprises the following raw materials in mass percentage:

[0064]

[0065] The fatty amine in this embodiment is 3-ethoxypropylamine.

[0066] The alcohol amine compound in this embodiment is N,N-dimethylethanolamine.

[0067] The alcohol ether compound in this embodiment is triethylene glycol monomethyl ether.

[0068] The surfactant of the present embodiment is dialkyl dimethyl quaternary ammonium salt.

[0069] The corrosion inhibitor in this example is a benzotriazole derivative.

[0070] The solvent of this embodiment is pure water.

[0071] A preparation method for a water-based cleaning solution for cleaning printed circuit boards, comprising the following processing steps:

[0072] Step A. Accurately weigh the amount of materials according to the formula, and place them in different containers;

[0073] Step B, adding the solvent into the reaction kettle...

Embodiment 3

[0079] A kind of water-based cleaning solution for cleaning printed circuit boards of the present invention comprises the following raw materials in mass percentage:

[0080]

[0081]

[0082] The fatty amine in this embodiment is a mixture of 3-methoxypropylamine, 3-ethoxypropylamine and 3-isopropoxypropylamine.

[0083] The alcohol amine compound in this embodiment is a mixture of N-methyldiethanolamine, N,N-dimethylethanolamine and N-ethyldiethanolamine.

[0084] The alcohol ether compound in this embodiment is a mixture of diethylene glycol monomethyl ether, triethylene glycol monomethyl ether and diethylene glycol monobutyl ether.

[0085] The surfactant in this embodiment is a mixture of alkyl trimethyl quaternary ammonium salt, dialkyl dimethyl quaternary ammonium salt and monoalkyl quaternary ammonium salt.

[0086] The corrosion inhibitor in this embodiment is a mixture of sodium metasilicate, benzotriazole derivatives and alkanolamides.

[0087] The solvent o...

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PUM

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Abstract

The invention relates to a water-based cleaning solution for cleaning a printed circuit board, which is prepared from the following raw materials: 10-35% of fatty amine, 0.1-5% of alcohol amine compound, 10-35% of alcohol ester compound, 0.1-5% of surfactant, 0.1-5% of corrosion inhibitor and 25-75% of solvent. The cleaning solution is good in cleaning performance, free of damaging an ozone layer, and good in environment friendliness. The preparation method of the cleaning solution comprises the following processing steps: weighting materials of certain formula quantities according to a formula; adding the solvent in a reactor, adding the alcohol amine compound in the reactor and stirring uniformly; adding fatty amine in the reactor and stirring uniformly; adding the alcohol ester compound in the reactor and stirring uniformly; adding the surfactant in the reactor and stirring uniformly; and adding the corrosion inhibitor in the reactor and stirring uniformly to obtain the product. The method is simple in process, easy to operate and high in production efficiency.

Description

technical field [0001] The invention relates to the technical field of cleaning agents, in particular to a water-based cleaning solution for cleaning printed circuit boards and a preparation method thereof. Background technique [0002] During the assembly and welding process of printed circuit board (Printed Circuit Board), in order to ensure the reliability of welding, it is necessary to use highly active flux. These flux residues on the PCB will corrode the circuit board and components, while reducing its surface insulation resistance. With the erosion of humidity, dust, oil fume, static electricity and various harmful gases in the environment, the powdered flux will continuously absorb these impurities, and even cause serious corrosion and leakage of circuit boards, affecting the reliability of circuit boards. [0003] The traditional circuit board cleaning process commonly used at present generally uses ODS (ozone-depleting substances) cleaning agents containing freon ...

Claims

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Application Information

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IPC IPC(8): C11D1/645C11D3/60
Inventor 何国锐莫建强贺洪兵
Owner 东莞市伟思化学科技有限公司
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