Cleaning agent for water-based electronic industrial flux, as well as preparation method and using method thereof

Abstract

The invention provides a cleaning agent for a water-based electronic industrial flux, as well as a preparation method and a using method thereof. The cleaning agent is prepared from a high-boiling-point ethanol-ether solvent, N-methyl-2-pyrrolidone, a nonionic surfactant, ethanol, water, a polyether polysiloxane nano-defoaming agent, water-soluble nano-silicon dioxide and ethanol amine. The preparation method comprises the following concrete steps: adding the high-boiling-point ethanol-ether solvent, N-methyl-2-pyrrolidone, and ethanol into a reaction kettle; heating and uniformly stirring; sequentially adding the nonionic surfactant and water, and stirring at a high speed; and finally adding the polyether polysiloxane nano-defoaming agent, water-soluble nano-silicon dioxide and ethanol amine, uniformly dispersing, cooling to room temperature, and standing to obtain the cleaning agent for water-based electronic industrial flux. The using method comprises the following steps: acting the diluted cleaning agent for a water-based electronic industrial flux to the surface of a part requiring washing at normal temperature, performing circulating effect in forward and backward directions, and performing pure water flushing and air drying to obtain a clean part.

Description

Technical field [0001] The invention belongs to the technical field of cleaning agent materials, and specifically relates to a water-based electronic industry flux cleaning agent, and a preparation method and use method thereof. Background technique [0002] With the rapid development of electronic products in the direction of miniaturization, high density and high reliability, more and more pollutants have been introduced in the electronic manufacturing process. For example, in the assembly and welding process of assembly circuit boards, in order to ensure welding Reliability, you must use a higher activity flux, these flux residues on the assembly circuit board, will corrode the circuit board and components, while reducing its surface insulation resistance, especially in the high temperature and humidity environment, it will appear Severe corrosion and leakage affect the reliability of the whole machine. The residues on the assembled circuit board are mainly the residues of el...

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Problems solved by technology

[0004] Chinese patent CN102851151B discloses an environmentally friendly cleaning agent for the electronics industry, including 2-methylpentane, absolute ethanol, isopropanol, and ether solvents. Methylpentane is used instead of n-hexane to reduce the impact of the cleaning agent on the human body. toxicity, and has good solubility to rosin in flux, ether solvents have good solubility to organic acids in flux, and sewage ethanol has a good effect of removing oil stains, but the prepared cleaning agent is still It is toxic to the human body and does not contain water, which is easy to cause pollution and residue to cleaning devices, causing secondary pollution

But know by above-mentioned prior art, the cleaning agent of water base in the electronic integrated circuit board flux cleaning agent is less at present, develops water base electronic integrated circuit board soldering flux cleaning agent also has market prospect

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