Preparation method of base film for ceramic capacitor release film

A technology of ceramic capacitors and release films, applied in the direction of chemical instruments and methods, applications, flat products, etc.

Pending Publication Date: 2021-06-08
SHANDONG SNTON OPTICAL MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, domestic polyester base films for MLCC are mainly imported from abroad, especially high-end MLCC polyester base films are monopolized by foreign companies. There is very little domestic information about high-end business MLCC polyester base films. Similar polyester base film manufacturers have no relevant product information

Method used

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  • Preparation method of base film for ceramic capacitor release film
  • Preparation method of base film for ceramic capacitor release film
  • Preparation method of base film for ceramic capacitor release film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] refer to Figure 1-5 , a method for preparing a base film for a ceramic capacitor release film, comprising a cast sheet pipeline 1, a die head 2, a co-extrusion system 3, a melt pipeline 4, a filter 5, a first extruder 6, a metering pump 7, a wire 8. DC motor 9, data wire 10, electronic component 11, control system 12, second extruder 13, third extruder 14, clamp 15, horizontal stretch width 200, film width 201; A method for preparing a base film for a ceramic capacitor release film, wherein a co-extrusion system 3 and a melt pipeline 4 are installed inside a die head 2; a metering pump 7 is connected to a DC motor 9 through a wire 8; a DC motor 9, electronic components 11, and a control system 12 is connected with a data wire 10; the casting pipeline 1 is installed at the lower end of the die head 2; the base film for the release film of the ceramic capacitor has three layers in structure, that is, ABA or ABC type, and the A layer solves the separation and opening prop...

Embodiment 2

[0048] Detection of DEG content in polyester chips:

[0049] In the production process of polyester, ethylene glycol undergoes its own synthesis reaction under high temperature conditions to form diethylene glycol. Diethylene glycol has the properties of part of ethylene glycol and enters the polyester chain in a manner similar to ethylene glycol. There are also ether bonds. Due to the replacement of some lipid bonds by ether bonds, the relatively regular chemical structure and relatively regular geometric structure of PET are destroyed, the conformation of PET molecules increases, and the flexibility of molecular chains increases, resulting in a decrease in melting point. The problem of poor light resistance and heat resistance, so it is very necessary to accurately determine PET.

[0050] Experimental equipment and experimental methods: gas chromatograph, chromatographic column; raw materials: ethanolamine, isopropanol, benzyl alcohol, diethylene glycol;

[0051] Accurately...

Embodiment 4

[0055] Experimental test of shrinkage rate of heat shrinkable film: The state adjustment of the sample should be carried out according to the regulations of GB / T2918-1998, the humidity is ℃, the adjustment time is not less than 0.5h, and the test is carried out under this condition: Experimental equipment: constant temperature bath, frame , steel ruler, blade, used to hold the liquid heat transfer medium, the volume should meet the test requirements; liquid heat transfer medium: choose heat transfer oil as the heat transfer medium, and the principle is to have no effect on the sample; frame: two metal mesh embedded The frame of the metal mesh is larger than the sample by more than 10mm; the distance between the two metal meshes is 1mm-3mm, which should not affect the free shrinkage of the sample; sample cutting: use a steel ruler with an accuracy of 0.5mm, a blade or a special tool , cut 3 samples of 100mm×100mm, mark the vertical and horizontal directions of the film; test pro...

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Abstract

The invention discloses a preparation method of a base film for a ceramic capacitor release film. According to the preparation method of the base film for the ceramic capacitor release film provided by the invention, a layer C comprises the following raw materials in percentage by weight: 90% of PET resin, 3% of organic silicon resin, 2% of curing agent and 5% of nanoscale inorganic material; the particle size of the PET resin of the layer C is less than 2 microns; raw materials of a layer A, a layer B and the layer C are fed into first equipment for stirring, second equipment for stirring and third equipment for stirring and mixing according to the proportion, stripes in the stress direction can appear on the surface of a polyester film under high temperature and stress, the thin polyester film is more serious, and from the production of the polyester film to the downstream production of an MLCC, the polyester film can be subjected to two layers of high temperature, a product must be subjected to two times of high-temperature tests when leaving a factory, and the product has excellent mechanical strength and chemical properties, has very high stability under extreme weather conditions, and also has very high temperature resistance.

Description

technical field [0001] The invention belongs to the technical field of film consumables, in particular to a method for preparing a base film for a release film of a ceramic capacitor. Background technique [0002] MLCC ceramic capacitor is the key electronic component in the electronic machine. It is laminated by the ceramic medium of the printed electrode in a dislocation manner. After a one-time high-temperature sintered ceramic chip, the metal external electrodes are sealed at both ends of the chip. , forming a similar independent structure, MLCC is a relatively high-tech electronic component, and its structural materials are related to thin-film technology. Generally speaking, as the substrate material of ceramic diaphragm in the preparation process of MLCC, polyester film has incomparable performance advantages compared with other materials. With the development of mobile phones, 5G communications, new energy vehicles and other industries, MLCC is increasingly high-perf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C48/21B29C48/00B29C48/08B29L7/00C08L67/02C08L83/04
CPCB29C48/21B29C48/001B29C48/08C08L67/02B29L2007/00C08L83/04B29C48/16B29C48/92B29C48/50B29C48/2552B29C48/69B32B27/36B32B27/18C08K3/013C08J5/18C08K2201/011
Inventor 程凡宝孙艳斌杨彪李明勇李宇航刘小东杨建鹏李彬彬潘恩超
Owner SHANDONG SNTON OPTICAL MATERIALS TECH CO LTD
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