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Release film used for casting MLCC (Multiplayer Ceramic Chip Capacitor)

A release film and release layer technology, used in coatings, layered products, synthetic resin layered products, etc., can solve the problem of non-wetting of the release film, improve the residual adhesion rate, improve the antistatic performance, The effect of improving adhesion

Active Publication Date: 2014-12-10
ZHEJIANG JIEMEI ELECTRONICS & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the non-wettable defect of the release film used for casting in the existing MLCC production process, to provide a release film with good wettability, showing suitable peeling and stable release force, ceramic Uniform slurry coating, uniform thickness

Method used

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  • Release film used for casting MLCC (Multiplayer Ceramic Chip Capacitor)

Examples

Experimental program
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Effect test

Embodiment 1

[0019] A release film for MLCC casting, comprising a film base layer and an undercoat layer, an antistatic layer and a release layer coated on the film base layer in sequence, an adhesive is coated on the undercoat layer, and an antistatic layer is coated on the base layer Anti-static liquid is coated, and release agent is coated on the release layer. The film used for the base layer of the film is PET film, and the thickness of the base layer of the film is 250um. Among them, the release agent is composed of the following components in mass percentage: 30% vinyl-terminated silicone resin, 1% butynol, 3% vinyl alcohol polymer, 3% acetoxysiloxane, platinum catalyst 8%, toluene 10%, ethyl acetate 5%, heptane 15%. The concentration of the release agent is 5%, and the thickness is 0.5 μm. The binder is polyvinyl butyral, with silica particles with a particle size of 0.1-0.2 μm inside. In order to have sufficient adhesion without affecting the haze of the film, the thickness of th...

Embodiment 2

[0021] A release film for MLCC casting, comprising a film base layer and an undercoat layer, an antistatic layer and a release layer coated on the film base layer in sequence, an adhesive is coated on the undercoat layer, and an antistatic layer is coated on the base layer Anti-static liquid is coated, and release agent is coated on the release layer. The film used for the base layer of the film is a PBT film, and the thickness of the base layer of the film is 25um. Among them, the release agent is composed of the following components in mass percentage: vinyl-terminated silicone resin 5%, butynol 0.3%, vinyl alcohol polymer 0.7%, acetate siloxane 0.5%, platinum catalyst 1.5%, toluene 2%, ethyl acetate 80%, heptane 5-15%. The concentration of the release agent is 8%, and the thickness is 0.1 μm. The binder is polyvinyl butyral, and silica particles with a particle size of 0.05 μm are added inside. In order to have sufficient adhesion without affecting the haze of the film, th...

Embodiment 3

[0023] A release film for MLCC casting, comprising a film base layer and an undercoat layer, an antistatic layer and a release layer coated on the film base layer in sequence, an adhesive is coated on the undercoat layer, and an antistatic layer is coated on the base layer Anti-static liquid is coated, and release agent is coated on the release layer. The film used for the base layer is PENT film, and the thickness of the base layer is 150um. Among them, the release agent is composed of the following components in mass percentage: vinyl-terminated silicone resin 25%, butynol 0.3%, vinyl alcohol polymer 0.7%, acetate siloxane 0.5%, platinum catalyst 1.5%, toluene 2%, ethyl acetate 80%, heptane 10%. The concentration of the release agent is 10%, and the thickness is 1.0 μm. The binder is polyvinyl butyral, with silica particles with a particle size of 0.01-0.15 μm inside. In order to have sufficient adhesion without affecting the haze of the film, the thickness of the primer la...

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Abstract

The invention discloses a release film used for casting an MLCC (Multiplayer Ceramic Chip Capacitor). The release film comprises a film base layer and a release layer formed on the film base layer by coating, wherein the release layer is coated with a release agent; the release agent comprises the following components in percentage by mass: 5%-30% of vinyl end group organic silicon resin, 0.1%-1% of butynol, 0.7%-3% of vinyl alcohol polymer, 0.5%-3% of acetoxy siloxane, 0.5%-8% of platinum catalyst, 2%-10% of methylbenzene, 30%-80% of ethyl acetate, and 5%-15% of heptane. The release surface of the release film has very good wettability; wetting and film forming of ceramic slurry can be well realized on the release surface of the release film during casting of the MLCC without generating hard spots, and moderate release force is achieved; in addition, subsequent adhesion and sealing performance of the release film are improved, and the release layer is unlikely to fall off; the antistatic performance of the film is improved and the requirement of MLCC production can be met.

Description

technical field [0001] The invention belongs to the technical field of film production, and in particular relates to a release film used for casting MLCC. Background technique [0002] The release film is to coat the release agent on the bottom film (including PET film, PE film, paper, PVC film, etc.) The liquid clay (ceramic slurry) is evenly cast and coated on the surface of the release film (the surface of the release layer), and it is dried at high temperature, shaped, and peeled off; the release film is mainly used to carry the clay layer during casting coating, and its The release surface must be "wettable". The release surface must be very stable and moderate, and it can be easily peeled off after drying. However, most of the release films on the market today have "non-wettable" release surfaces. During the process, tape casting cannot be formed or local "pitting" and uneven thickness will occur. Contents of the invention [0003] The purpose of the present invent...

Claims

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Application Information

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IPC IPC(8): B32B7/06B32B27/08B32B33/00C09D183/07C09D5/20C09J129/14
Inventor 梁仁调林海峰鲍浪静
Owner ZHEJIANG JIEMEI ELECTRONICS & TECH
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