Method for preparing nickel electrode slurry for electronic component

Abstract

The invention discloses a method for preparing nickel electrode slurry for an electronic component. The method comprises the steps of mixing materials, dispersing, rolling and filtering, wherein the dispersing step comprises the following substeps of: A, sequentially weighing an organic solvent and metal powder and placing in an ultrasonic special barrel, placing the ultrasonic special barrel in ultrasonic equipment, and performing primary dispersing treatment to obtain primarily mixed nickel slurry; B, adding organic carries into the primarily mixed nickel slurry obtained after treatment of the step A, placing in the ultrasonic equipment, and performing secondary stirring and dispersing treatment to obtain secondarily mixed nickel slurry; and C, placing the secondarily mixed nickel slurry which is obtained after the treatment of the step B in a power mixer, performing third-time dispersing treatment to obtain nickel slurry which is obtained through dispersing, wherein the autoroatation speed of the power mixer is 600+ / -15 rpm, revolution speed is 30+ / -0.6 rpm, and the third-time dispersing time is 60+ / -5 minutes. In the method, the problems which cannot be solved by common shearing force can be solved by using the mechanical effect and the cavitation effect of sound waves, which are generated in liquid.

Description

technical field

[0001] The invention relates to the technical field of preparation of electronic components, more specifically, the invention relates to a preparation method of a nickel electrode slurry for electronic components. Background technique

[0002] The chip electronic component market has been developing continuously and steadily in recent years. With the popularization of laptop computers, LCD monitors and flat-panel TVs, 3G communication technology has been gradually promoted and applied throughout the country. The demand for high capacity electronic components is increasing. To make small-sized, high-performance electronic components, good electronic pastes are necessary, such as nickel electrode paste, copper electrode paste, etc. The existing slurry dispersion method mainly adds a dispersant to the slurry for stirring and dispersing. For the electronic slurry using micron-sized metal powder, only using the stirring and dispersing method often results in poor...