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Environment protection efficient water-based circuit board cleaning agent and preparation thereof

A circuit board cleaning agent, water-based technology, applied in the field of cleaning agents, can solve problems such as flammability, limited oil removal ability, complex cleaning process, etc., achieve simple and easy preparation methods, eliminate flammable hidden dangers, and scientific and reasonable raw materials Effect

Inactive Publication Date: 2009-05-27
潘惠凯 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 2. Alcohols: limited ability to remove oil stains, flammable, explosive, and poor safety
[0006] 3. Hydrocarbons: anti-corrosion, low price, but low flash point, flammable, poor melting power, poor cleaning power for polar dirt, etc.
[0007] 4. Water-based type: low cost, poor removal effect on oil-soluble dirt, complex cleaning process, and low efficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] By weight percentage:

[0030] Fatty alcohol ethoxylates 4% Nonylphenol ethoxylates 3%

[0031] Sodium dodecylbenzenesulfonate 2% Benzotriazole 0.5%

[0032] Triethanolamine 0.5% Sodium Citrate 1%

[0033] Methylsilazane 0.1% Ethylene Glycol Butyl Ether 5%

[0034] N-Methylpyrrolidone 5% 3-Methoxybutyl Ester 5%

[0035] water balance

[0036] Preparation method: Accurately weigh various raw materials according to the proportion of the formula, add them into a reaction vessel, stir evenly, and let it stand still, which is the cleaning agent of the present invention.

Embodiment 2

[0038] By weight percentage:

[0039] Fatty Alcohol Polyoxyethylene Ether 6% Alkyl Ether Phosphate Triethanolamine Salt 3%

[0040] Benzotriazole 0.5% Triethanolamine 0.5%

[0041] Sodium EDTA 1% Methylsilazane 0.5%

[0042] Propylene Glycol Ether 5% N-Methylpyrrolidone 5%

[0043] Ethyl acetate 5% water balance

[0044] Preparation method: Accurately weigh various raw materials according to the proportion of the formula, add them into a reaction vessel, stir evenly, and let it stand still, which is the cleaning agent of the present invention.

Embodiment 3

[0046] By weight percentage:

[0047] Fatty alcohol ethoxylates 4% Nonylphenol ethoxylates 3%

[0048] Alkyl ether phosphate triethanolamine salt 3% Benzotriazole 0.5%

[0049] Triethanolamine 0.5% Sodium Citrate 1.2%

[0050] Methylsilazane 0.2% Propylene Glycol Methyl Ether 7%

[0051] 3-methoxybutyl ester 8% water balance

[0052] Preparation method: Accurately weigh various raw materials according to the proportion of the formula, add them into a reaction vessel, stir evenly, and let it stand still, which is the cleaning agent of the present invention.

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PUM

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Abstract

The invention provides an environment-friendly high-efficiency water-based circuit board cleaning agent and a method for preparing the same. The raw material formulation of the cleaning agent comprises a surfactant, a corrosion-retarding active agent, a chelating agent, a defoamer, a cleaning solvent and water. The preparation method comprises the following steps: accurately weighing various raw materials according to the ratio of the formulation, adding the raw materials into a reactor to be stirred evenly, and keeping the mixture stand to obtain the cleaning agent of the invention. The cleaning agent has the advantages of scientific and reasonable raw materials, simple and practicable preparation method, nontoxic and non-corrosive product, no inflammable and explosive properties, non pollution to the environment, high cleaning cleanliness and low cost, is biodegradable, can be cleaned through both immersion and ultrasonic, and has significant economic benefits.

Description

technical field [0001] The invention belongs to the technical field of cleaning agents, and more specifically relates to a water-based cleaning agent for circuit boards that is safe, environmentally friendly, and highly clean. Background technique [0002] Circuit board (referred to as PCB) is an indispensable part of electronic products. There are electronic parts of various sizes welded on the PCB. During the welding operation, it is inevitable to be stained with dust, metal, fingerprints, oil and flux. These substances will corrode the circuit board and reduce the adhesion of the coating layer, reduce the insulation resistance, cause electromigration, and easily cause short circuit or open circuit of the circuit board, which affects the reliability of the circuit board. , so in order to ensure the high quality of the quality, it is necessary to clean the circuit board, [0003] At present, there are many varieties of cleaning agents for circuit boards, but they can be ge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D1/83C11D3/36
Inventor 林峰潘惠凯
Owner 潘惠凯
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