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Binder composition for green sheet molding, slurry for green sheet molding, green sheet and method for producing same, and apparatus and method for producing same

A manufacturing method and binder technology, which can be used in manufacturing tools, ceramic molding machines, ester copolymer binders, etc., can solve problems such as productivity deterioration and performance degradation, and achieve the effect of easy thermal decomposition.

Pending Publication Date: 2022-05-27
株式会社引能仕材料
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If organic matter remains in the capacitor, the performance decreases, so the organic matter is removed by prolonging the calcination time, but this leads to deterioration of productivity

Method used

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  • Binder composition for green sheet molding, slurry for green sheet molding, green sheet and method for producing same, and apparatus and method for producing same
  • Binder composition for green sheet molding, slurry for green sheet molding, green sheet and method for producing same, and apparatus and method for producing same
  • Binder composition for green sheet molding, slurry for green sheet molding, green sheet and method for producing same, and apparatus and method for producing same

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0160] 4.1.2. Preparation of conductive paste

[0161] The binder composition (1) was prepared by dissolving the polymer (A) obtained above in an isopropyl alcohol solvent so that the solid content concentration might be 10% by mass. To 44 parts by mass of the thus obtained binder composition (1), 55 parts by mass of nickel powder as a conductive powder and 1 part by mass of oleic acid as a dispersant were added and mixed with a three-roll mill to obtain a conductive paste.

[0162] 4.1.3. Production of ceramic green sheets

[0163] The binder composition (2) was prepared by dissolving the polymer (A) obtained above in a butyl acetate solvent so that the solid content concentration might be 7.5% by mass. To 67 parts by mass of the binder composition (2) thus obtained, 32 parts by mass of barium titanate (average particle diameter: 0.2 μm) as inorganic particles and 1 part by mass of dibutyl phthalate as a plasticizer were added, The mixture was mixed using a ball mill to obt...

Embodiment 2～9

[0199] 4.2. Examples 2 to 9 and Comparative Examples 1 to 5

[0200] A binder composition, a binder composition, a The green sheets and all-solid-state batteries were evaluated in the same manner as in Example 1 above.

[0201] 4.3. Evaluation results

[0202] The polymer compositions used in Examples 1 to 9 and Comparative Examples 1 to 5, respective physical property values, and respective evaluation results are shown in Table 1 below.

[0203] [Table 1]

[0204]

[0205] As can be seen from the results in Table 1 above, using the binder compositions containing the polymers (A) shown in Examples 1 to 9, the polymer residues at the time of thermal decomposition were very small, and the residual carbon at the time of degreasing the green sheets was also low. Shows good battery characteristics. In addition, the green sheet strength is also sufficiently high. As described above, in Examples 1 to 9, due to the effect of the polymer (A) having an aromatic carboxylic acid s...

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Abstract

The present invention provides a binder composition for green sheet molding, which is easy to thermally decompose in the production of green sheets and can increase the strength of green sheets. This binder composition for green sheet molding contains a polymer (A) and a liquid medium (B), the polymer (A) containing a repeating unit (a1) derived from an aromatic carboxylic acid having an ethylenically unsaturated group, and the weight-average molecular weight (Mw) of the polymer (A) being 100,000 or more.

Description

technical field [0001] The present invention relates to a thermally decomposable binder composition for green sheet forming, a slurry for green sheet forming containing the composition, a green sheet formed by applying the slurry to a substrate and drying it, and Its manufacturing method, and the apparatus provided with this green sheet, and its manufacturing method. Background technique [0002] Since ceramics have excellent properties such as strength, insulation, chemical resistance, dielectric properties, and piezoelectricity, they are used as components such as ceramic circuit boards, multilayer ceramic capacitors, and all-solid-state batteries. These ceramic circuit boards and multilayer ceramic capacitors are often produced by a method generally called a green sheet method. The green sheet method refers to forming a ceramic green sheet (hereinafter, also referred to as a "green sheet") mainly composed of various ceramic powders and a binder, printing wiring with a me...

Claims

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Application Information

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IPC IPC(8): C09J133/10H01M4/62H01M10/0562H01G4/30H01G4/12C04B35/634
CPCC09J133/10H01M4/622H01M10/0562H01G4/30H01G4/12C04B35/63424B28B1/30C04B35/462C04B35/626C04B35/634H01B1/06H01M4/62H01M10/052Y02E60/10
Inventor 大桥泰良麻生圭吾助口大介板井信吾
Owner 株式会社引能仕材料
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