Processing method of electronic ceramic tape-casting slurry

A technology of electronic ceramics and casting slurry, which is applied in the field of electronic ceramic processing, can solve the problems of affecting the suspension effect, poor effect, and long preparation process, and achieves the effects of saving ball milling time, uniform and clear lines, and improving preparation efficiency

Inactive Publication Date: 2015-01-07
DENGFENG FUZHONG SPECIAL ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 a

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] This embodiment provides a processing method for electronic ceramic casting slurry, the processing method comprising the following steps:

[0029] S1, add the main solvent, plasticizer, surface lubricant and adhesive into the ball mill tank in turn according to the predetermined proportion and mill for 2 to 4 hours;

[0030] S2, adding a predetermined proportion of electronic ceramic powder to the ball milling tank, and continuing the ball milling for 26-32 hours to obtain an electronic ceramic casting slurry;

[0031] In step S1, the main solvent is a mixture of one or more of toluene, xylene, methyl ethyl ketone, cyclohexanone and trichloroethylene, and the main solvent accounts for a proportion of the electronic ceramic casting slurry The weight percentage is 15%-25%.

[0032] The plasticizer is DBP, and the weight percentage of the plasticizer in the electronic ceramic casting slurry is 1%-5%.

[0033] The surface lubricant is corn oil, castor oil or a mixture of ...

Embodiment 2

[0038] This embodiment provides a processing method for electronic ceramic casting slurry, the processing method comprising the following steps:

[0039] S1, add the main solvent, plasticizer, surface lubricant and adhesive sequentially into the ball mill tank according to the predetermined proportion and ball mill for 3 hours. Wherein, the main solvent is toluene, and the percentage by weight of toluene in the electronic ceramic cast slurry is 20%; the plasticizer is DBP, and the weight percentage of DBP in the electronic ceramic cast slurry is 3%; The lubricant is corn oil, and the weight percentage of corn oil in the electronic ceramic casting slurry is 0.8%; the binder is PVA, and the weight percentage of PVA in the electronic ceramic casting slurry is 4%.

[0040] S2, adding a predetermined proportion of electronic ceramic powder into the ball milling tank, and continuing the ball milling for 30 hours to obtain an electronic ceramic casting slurry. Among them, the electr...

Embodiment 3

[0043] This embodiment provides a processing method for electronic ceramic casting slurry, the processing method comprising the following steps:

[0044] S1, add the main solvent, plasticizer, surface lubricant and adhesive sequentially into the ball mill tank according to the predetermined proportion and ball mill for 3.5 hours. Wherein, the main solvent is xylene, and the percentage by weight of xylene in the electronic ceramic casting slurry is 15%; the plasticizer is DBP, and the weight percentage of DBP in the electronic ceramic casting slurry is 5%. The surface lubricant is castor oil, and the percentage by weight of castor oil in the electronic ceramic cast slurry is 1.5%; the binder is PVA, and the weight percentage of PVA in the electronic ceramic cast slurry is 3.5% .

[0045] S2, adding a predetermined proportion of electronic ceramic powder into the ball milling tank, and continuing the ball milling for 31 hours to obtain an electronic ceramic casting slurry. Amo...

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PUM

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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...

Claims

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Application Information

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IPC IPC(8): C04B35/10C04B35/622
Inventor 陈建中毛福堂
Owner DENGFENG FUZHONG SPECIAL ELECTRICAL
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