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Base film for MLCC ceramic green sheet carrier, method for producing same, and carrier film

A technology for ceramic green sheets and carriers, which is applied in the field of film manufacturing, can solve the problems of uneven casting of ceramic green sheet slurry, affecting the adhesion and coating properties of the release coating, and achieves the effect of excellent coating properties.

Active Publication Date: 2020-12-29
ZHEJIANG JIEMEI ELECTRONICS & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there will still be surface roughness on the release surface of the film, which will affect the adhesion and coating properties of the subsequent release coating, resulting in uneven casting of the ceramic green sheet slurry

Method used

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  • Base film for MLCC ceramic green sheet carrier, method for producing same, and carrier film
  • Base film for MLCC ceramic green sheet carrier, method for producing same, and carrier film

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Embodiment Construction

[0037] The following is a description of the preferred embodiments of the present invention, and a further description of the technical solution of the present invention, but the following embodiments are only preferred embodiments of the present invention and do not limit the present invention.

[0038] A base film for a MLCC ceramic green sheet carrier provided by the invention comprises:

[0039] Layer A: The composition is polyester resin, and its outer surface is a release surface;

[0040] Layer B: Located on the inner side of Layer A, the composition is polyester resin;

[0041] Layer C: Located inside the layer B, the composition is polyester resin and 500-3000ppm particles with a particle size of 1-4μm;

[0042] Coating: formed on the release surface of layer A, the composition of the coating includes main resin, curing agent, SiO 2 Aqueous dispersion of granules and wetting agents.

[0043] The compositions of each layer of each embodiment and comparative example ...

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Abstract

The present invention belongs to the technical field of thin film manufacturing, and relates to a base film suitable for an MLCC ceramic green sheet carrier, a manufacturing method thereof, and a carrier film, the base film comprises a base material and a coating layer formed on a release treatment surface of the base material, the surface roughness Ra of the coating layer is 5-15 nm, the Rz is less than 150 nm, and the coating layer is formed by curing a coating liquid containing particles. The surface roughness can be uniformly and stably controlled, so that the surface roughness Ra of the release treatment surface of the base film is 5-15nm and Rz is less than 150nm, the subsequent release layer coating property is excellent due to the high-flatness surface, and the prepared release film is flat, smooth and defect-free, and is suitable for an MLCC ceramic green sheet carrier, particularly a tape casting carrier of a ceramic green sheet with the thickness of less than 1mu m.

Description

technical field [0001] The invention belongs to the technical field of thin film manufacturing, and relates to a base film suitable for MLCC ceramic green sheet carrier, a manufacturing method thereof, and a carrier film with the base film. Background technique [0002] MLCC ceramic green sheet carrier refers to the carrier used for ceramic slurry casting green sheet, generally composed of polyester film substrate (base film) and a release layer coated on one side. The performance of the base film directly affects the formability of the coating release layer, and then affects the overall performance of the ceramic green sheet carrier. Especially in the manufacture of thin-film ceramic green sheets, the requirements for the carrier are getting higher and higher, and the corresponding requirements for the base film are also becoming more and more stringent. In the prior art, the base film is generally a BOPET film with a three-layer structure of A\B\A. Among them, the surfac...

Claims

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Application Information

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IPC IPC(8): C08J7/04C09D175/04C09D133/04C09D7/61C09D5/20B32B27/36B32B27/18B32B27/06B32B33/00B28B1/29C08L67/00
CPCC08J7/0427C09D175/04C09D133/04C09D7/61C09D5/20B32B27/36B32B27/18B32B27/08B32B33/00B28B1/29C08J2367/00C08J2475/04C08J2433/04C08K2201/011B32B2307/746B32B2255/26B32B2255/10B32B2250/03B32B2250/244C08K3/36
Inventor 陈国刚方隽云孙赫民钱荣王岩
Owner ZHEJIANG JIEMEI ELECTRONICS & TECH
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