Ceramic slurry composition containing acetic acid sec-butyl ester and application of acetic acid sec-butyl ester in preparation of ceramic slurry composition

A technology of sec-butyl acetate and ceramic slurry, which is applied in the field of preparing ceramic slurry composition and ceramic slurry composition for MLCC

Inactive Publication Date: 2013-06-05
胡先念
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of ethyl acetate, n-propyl acetate, ketones, and alcohol solvents

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Add 8g of polyvinyl butyral resin (polymerization degree 300) to 40g of sec-butyl acetate, mix well, then add 100g of ceramic powder (barium titanate, average particle size 0.1μm), grind it with a ball mill for 48 hours, and mix well , to obtain a ceramic slurry composition.

[0033] The obtained ceramic slurry composition was coated on a PET film treated with a release agent (i.e., coated with a silicone oil release agent) with a doctor blade coater, so that the thickness after drying was 3 μm, and after air-drying at room temperature for 1 hour, the obtained raw film.

[0034] As a result, the surface roughness was 0.24 μm, the stress at the breaking point was 29 MPa, and the viscosity change rate with time was 8%.

Embodiment 2

[0038] Add 8g polyvinyl butyral resin (polymerization degree 300) and 10g dioctyl phthalate to 35g sec-butyl acetate, mix well, then add 100g ceramic powder (barium titanate, average particle size 0.1μm) , ground for 48 hours with a ball mill, and stirred evenly to obtain a ceramic slurry composition.

[0039] The obtained ceramic slurry composition was coated on a release-treated PET film with a knife coater so that the thickness after drying was 3 μm, and after air-drying at room temperature for 1 hour, a green film sheet was obtained.

[0040] As a result, the surface roughness was 0.26 μm, the stress at the breaking point was 30 MPa, and the viscosity change rate with time was 6.5%.

Embodiment 3

[0044] Add 10g polyvinyl butyral resin (polymerization degree 1500) and 10g dibutyl phthalate to 50g sec-butyl acetate, mix well, then add 100g ceramic powder (barium titanate, average particle size 0.1μm) , ground for 48 hours with a ball mill, and stirred evenly to obtain a ceramic slurry composition.

[0045] The obtained ceramic slurry composition was coated on a release-treated PET film with a knife coater so that the thickness after drying was 3 μm, and after air-drying at room temperature for 1 hour, a green film sheet was obtained.

[0046] As a result, the surface roughness was 0.25μm, the stress at the breaking point was 30MPa, and the viscosity change rate over time was 7.6%.

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Abstract

The invention relates to a ceramic slurry composition which contains acetic acid sec-butyl ester serving as a solvent or dispersant, in particular relates to a ceramic slurry composition used for a chip multi-layer ceramic capacitor (MLCC) or a ceramic vessel for cooking or a ceramic crucible or a ceramic refractory material (such as a ceramic refractory brick) and also in particular relates to an application of the acetic acid sec-butyl ester in preparation of the ceramic slurry composition, especially the ceramic slurry composition for MLCC. The acetic acid sec-butyl ester is used as the solvent of the ceramic slurry composition, a binding agent, especially polyvinyl acetal resin, can be well dissolved, and ceramic powder can be dispersed more uniformly, so that an MLCC raw diaphragm with smooth surface and high strength can be prepared.

Description

technical field [0001] The present invention relates to a ceramic slurry composition containing sec-butyl acetate as a solvent, especially for chip multilayer ceramic capacitors (MLCC) or ceramic containers for cooking or ceramic crucibles or ceramic refractory materials (such as ceramic refractory bricks) The ceramic slurry composition, and the use of sec-butyl acetate in the preparation of ceramic slurry composition, especially ceramic slurry composition for MLCC. Background technique [0002] In recent years, chip multilayer ceramic capacitors (MLCC) have been widely used in mobile communications, personal computers, automotive electronics, motherboards, monitors and flat-screen TVs, home DVD and mobile DVD, computer peripherals (mouse, keyboard) and other electronic equipment . In 2009, the domestic output was 564 billion, and the global output was 910 billion. The demand is very large. [0003] Chip multilayer ceramic capacitors are generally produced by adding a bind...

Claims

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Application Information

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IPC IPC(8): C04B35/632
Inventor 胡先念李华叶文
Owner 胡先念
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