Processing method of electronic ceramic tape-casting slurry

Abstract

The invention relates to a processing method of electronic ceramic tape-casting slurry. The processing method comprises the following steps: adding a main solvent, a plasticizer, a surface lubricating agent and a bonding agent into a ball milling tank for ball milling for 2-4h, further adding electronic ceramic powder, and continuously performing ball milling for 26-32h. In the first aspect, the ball milling time is greatly reduced, and the preparation efficiency of the electronic ceramic tape-casting slurry is improved; in the second aspect, by adopting the preparation process which performs ball milling twice, the plasticizer can be fully inserted into double bonds of the bonding agent, and the opening of the double bonds of the bonding agent is better; the surface lubricating agent is also uniformly distributed in a solvent system, so that when powder is added subsequently, the powder can be effectively infiltrated and protected; in the third aspect, according to the tape-casting slurry prepared by the method provided by the invention, aggregation can be avoided during tape-casting molding of an electronic ceramic green body, and after firing of the electronic ceramic green body, the product has uniform and clear lines and a good microstructure.

Description

technical field [0001] The invention relates to the technical field of electronic ceramic processing, in particular to a processing method of electronic ceramic casting slurry. Background technique [0002] Ceramics that can use electricity and magnetic properties in the electronics industry are called electronic ceramics. Electronic ceramics are ceramics with new functions obtained through the control of surface, grain boundary and size structure. It can be widely used in energy, household appliances, automobiles, etc. [0003] At present, when the electronic ceramic green body is produced, it is usually produced by tape casting. In this way, the configuration of casting slurry is very critical. The existing electronic ceramic casting slurry configuration process is to add the main solvent, plasticizer, surface lubricant, adhesive and powder into the ball mill tank for ball milling according to the formula. , The ball milling time is generally 56 to 72 hours. [0004] I...

AI Technical Summary

Problems solved by technology

[0004] In the process of realizing the present invention, the inventor found that the prior art has at least the following problems: the existing casting slurry preparation process takes a long time and the effect is not good

When the main solvent, plasticizer, surface lubricant, adhesive and powder are added to the ball mill at the same time, the plasticizer cannot be fully inserted into the double bond of the adhesive, which affects the suspension effect; while the surface lubricant cannot effectively penetrate Keep the powder particles sticky, and the separation and agglomeration are serious, so the microstructure of the fired product is not good