Special tin surface protective agent for precision circuit board line manufacturing, and production method thereof

Abstract

The invention discloses a special tin surface protective agent for precision circuit board line manufacturing, and a production method thereof. The preparation method comprises the following steps: taking an organic solvent ethyl acetate, adding nano silicon dioxide, lauryl sodium sulfate, a stabilizer, sodium hypophosphite and octylphenol polyoxyethylene ether into the organic solvent, and fullymixing to obtain a material A; heating a resin, an anti-aging agent, a drier and benzotriazole to 300 DEG C through burdening, and fully mixing to obtain a material B; feeding the material A into a high-frequency furnace, and carrying out high-frequency oscillation, wherein the temperature is controlled to be 180-220 DEG C; controlling the time based on the raw materials, discharging after preliminary puffing to obtain a material C; and adding the material B into the material C, and fully mixing. In the prior art, part of raw materials in a special tin surface protective agent for a circuit board line are difficult to fully mix without high-frequency oscillation and are difficult to fully contact and mix with the next raw material without primary puffing treatment, so that the production efficiency of the production method of the special tin surface protective agent for the circuit board line is influenced. The method of the invention avoids the problems in the prior art.

Description

technical field [0001] The invention belongs to the technical field of special tin surface protectant for circuit board circuits, and in particular relates to a special tin surface protectant for precision circuit board circuit production and a production method thereof. Background technique [0002] The names of the circuit boards are: ceramic circuit board, alumina ceramic circuit board, aluminum nitride ceramic circuit board, circuit board, PCB board, aluminum substrate, high frequency board, thick copper board, impedance board, PCB, ultra-thin circuit board, ultra-thin Thin circuit boards, printed (copper etching technology) circuit boards, etc. The circuit board makes the circuit miniaturized and intuitive, and plays an important role in mass production of fixed circuits and optimizing the layout of electrical appliances. Circuit boards may be referred to as printed wiring boards or printed circuit boards. [0003] The purpose of the present invention is to provide a ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide the special tin surface protectant and production method thereof for precision circuit board circuit, to solve the problems in the special tin surface protectant for circuit board circuit when using the existing circuit board circuit special tin surface protectant and its production method. It is difficult for some raw materials to be fu...