Water-based cleaning agent and preparation method thereof

Abstract

The invention belongs to the technical field of washing of electronic products, and in particular relates to a water-based cleaning agent. The water-based cleaning agent is prepared from the following components in percentage by mass: 50 percent to 70 percent of de-ionized water, 10 percent to 25 percent of ethylene glycol ether, 10 percent to 20 percent of propylene glycol ether, 5 percent to 10 percent of alkylol amine, 4 percent to 10 percent of a surfactant, 0.2 percent to 1 percent of a corrosion inhibitor, 0.5 percent to 1.5 percent of a de-foaming agent and 0.5 percent to 1 percent of a stabilizer. Compared with the prior art, all the selected components are tightly matched to generate a extremely good synergetic enhancement effect; all the components in the water-based cleaning agent have no toxicity and are safe and environmentally-friendly; the corrosion inhibitor has a protection effect on cleaned workpieces and the workpieces are prevented from being corroded by atmosphere and harmful media; the de-foaming agent has the de-foaming and bubble inhibition effects; a phenomenon that a lot of air bubbles are generated in a cleaning process is avoide so that the cleaning effect is influenced is avoided. Furthermore, the invention further provides a preparation method of the water-based cleaning agent; the preparation method is simple to operate and is safe and environmental-friendly.

Description

technical field [0001] The invention belongs to the technical field of electronic product cleaning, and in particular relates to a water-based cleaning agent and a preparation method thereof. Background technique [0002] As we all know, the surface of SMT / THT PCBA after soldering has rosin flux, water-soluble flux, no-clean flux / solder paste, fingerprints, oil, dust and other pollutants. These pollutants may directly or indirectly cause PCBA potential risks, such as: causing corrosion to PCBA; during the electrification process, electromigration is caused by the potential difference between the solder joints, causing short-circuit failure of the product; affecting the coating effect; elapsed time Due to the change of environmental temperature, the coating cracks and the skin becomes warped, which causes reliability problems. Therefore, so-called water-based cleaning agents have appeared on the market. Water-based cleaning agents achieve cleaning by means of the wetting, e...

AI Technical Summary

Problems solved by technology

However, the existing water-based cleaning agent still has the following deficiencies: 1) a large amount of foam is generated during the washing process, which is not suitable for automatic cleaning and ultrasonic cleaning; 2) it is corrosive to the cleaning workpiece and skin, and does not conform to green Environmental protection and safety and harmless requirements

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