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Easy-to-peel MLCC release film and preparation method thereof

A release film and easy-peeling technology, which is applied in the direction of chemical instruments and methods, layered products, synthetic resin layered products, etc., can solve the problem of poor adhesion between silicone oil and film, and achieve enhanced surface lipophilicity, Effect of reducing roughness and maintaining peel force

Active Publication Date: 2022-01-28
常州钟恒新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: to overcome the problem of poor adhesion between the silicone oil and the film applied to the existing MLCC release film, and to provide a MLCC release film in which the silicone oil is firmly attached to the film

Method used

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  • Easy-to-peel MLCC release film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Preparation of modified flaky inorganic nanoparticles: Mix 100g of molybdenum disulfide and 1000ml of deionized water at room temperature, take 200g of KH-550 and add it to 500ml of absolute ethanol, stir to dissolve it, and then add it to the inorganic In the material aqueous solution, ultrasonic for 30 min, stirred for 10 min, adjusted to pH 4-5 with hydrochloric acid, reacted in a 50°C water bath for a period of time, raised the temperature to 70°C, continued to react for a period of time, cooled to room temperature, and dried by centrifugation and repeated washing obtain the modified inorganic material;

[0032] (2) Preparation of functional masterbatch: Add 99.5% by mass ratio of powdered PET and 0.5% modified inorganic materials into a high-speed mixer for pre-dispersion and mixing at room temperature at a speed of 1000-1500 rpm and mix for 15-30 minutes , to form a compound, raise the twin-screw extruder to a set temperature range, and after 2 hours of heat p...

Embodiment 2

[0042] (1) Preparation of modified flaky inorganic nanoparticles: Mix 100g of graphene with 1000ml of deionized water at room temperature, take 200g of KH550 and add it to 500ml of absolute ethanol, stir to dissolve it, and then add it to the aqueous solution of inorganic materials , sonicated for 30 min, stirred for 10 min, adjusted to pH 4-5 with hydrochloric acid, reacted in a water bath at 50°C for a period of time, raised the temperature to 70°C, continued to react for a period of time, cooled to room temperature, centrifuged, washed and dried several times to obtain modified the latter inorganic materials.

[0043] (2) Preparation of functional masterbatch: at room temperature, add powdered PET with a mass ratio of 99% and modified inorganic materials with a mass ratio of 1% to a high-speed mixer for pre-dispersion and mixing at a speed of 1000-1500 rpm, and mix for 15-30 minutes , to form a compound, raise the twin-screw extruder to a set temperature range, and after 2 ...

Embodiment 3

[0053] (1) Preparation of modified flaky inorganic nanoparticles: at room temperature, mix 100g of montmorillonite and 1000ml of deionized water evenly, take 200g of KH550 and add it to 500ml of absolute ethanol, stir to dissolve it, and then add it to the aqueous solution of inorganic materials In the medium, ultrasonic for 30 min, stirred for 10 min, adjusted to pH 4-5 with hydrochloric acid, reacted in a water bath at 50°C for a period of time, raised the temperature to 70°C, continued to react for a period of time, cooled to room temperature, and obtained the improved product by centrifugation, washing and drying several times. Sexualized inorganic materials;

[0054] (2) Preparation of functional masterbatch: at room temperature, add powdered PET with a mass ratio of 99% and modified inorganic materials with a mass ratio of 1% to a high-speed mixer for pre-dispersion and mixing at a speed of 1000-1500 rpm, and mix for 15-30 minutes , to form a compound, raise the twin-scr...

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Abstract

The invention belongs to the technical field of films, and particularly relates to an easy-to-peel MLCC release film and a preparation method thereof. An online PET release agent coating technology is adopted, and plasma is adopted to treat the surface of the film in the production process, so that the binding force between silicone oil and the film is better, and the peeling property to ceramic is better; and the release film comprises at least two layers: the surface layer comprises siloxane modified molybdenum disulfide, montmorillonite or graphene sheet inorganic material and PET, and the base layer is 100% PET. The invention also provides a production process of the release film, wherein the production process comprises the following steps: (1) preparing a base film with at least two layers of structures; (2) heating and longitudinally stretching the base film; (3) treating the surface of the base film by plasmas; (4) coating the treated surface of the base film with silicone oil emulsion; and (5) heating and transversely stretching the thick film of the uncured emulsion coating layer to complete coating layer curing, heat setting and cooling. The siloxane-modified two-dimensional nano material can improve the smoothness of the surface layer, so that the surface roughness of the film is reduced.

Description

technical field [0001] The invention belongs to the technical field of thin films, and in particular relates to an easy-peelable MLCC release film and a preparation method thereof. Background technique [0002] In the manufacturing process of ceramic capacitors (MLCC), there is a processing process of ceramic diaphragms. In this process, the ceramic slurry is uniformly cast and coated on the surface of the release film, and after drying at high temperature and setting, the release film is peeled off to form a ceramic diaphragm. , in the whole process, the release film is a high-consumable product, which plays the role of bearing the clay layer. The release film requires uniform thickness, good peelability and smoothness, so as to ensure that it can be easily peeled off after drying without damaging the ceramic medium. electrical layer. [0003] Polyethylene terephthalate (PET) has become a commonly used material for preparing high-performance release films due to its excell...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/36B32B27/18B32B27/06B32B33/00C08L67/02C08K9/06C08K3/30C08K3/04C08K3/34
CPCC08L67/02B32B27/36B32B27/18B32B27/08B32B33/00C08K2003/3009B32B2307/746C08K9/06C08K3/30C08K3/042C08K3/346
Inventor 陈勇袁文新汪洋范国训刘俊萍
Owner 常州钟恒新材料股份有限公司
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