A kind of production device of mixed raw material high temperature resistant capacitive film for automobile and preparation process thereof

A technology of mixing raw materials and preparation processes, which is applied in the parts of fixed capacitors, the casing/package of fixed capacitors, laminated capacitors, etc., can solve the problems of poor film uniformity of film-forming capacitors, and achieve high cooling molding quality. , High economic benefit, stable film-forming performance

Active Publication Date: 2022-03-08
泉州嘉德利电子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the film formation and the uniformity of the capacitive film produced by this patent are not good.

Method used

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  • A kind of production device of mixed raw material high temperature resistant capacitive film for automobile and preparation process thereof
  • A kind of production device of mixed raw material high temperature resistant capacitive film for automobile and preparation process thereof
  • A kind of production device of mixed raw material high temperature resistant capacitive film for automobile and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A kind of mixed raw material high temperature resistant capacitor film for automobile and its preparation process

[0047] The high-temperature-resistant capacitor film of mixed raw materials for automobiles is prepared by the following process:

[0048] Step A, add flake graphite into potassium permanganate solution and mix, raise the temperature to 55°C, and stir for 15 hours; after the reaction, pour it into a hydrogen peroxide solution with a concentration of 28%, cool to room temperature, and then washing and drying in vacuum to obtain graphene oxide;

[0049] Step B, graphene oxide modification treatment: 4-nitrophthalonitrile, bisphthalonitrile, and copper acetate are mixed in a molar ratio of 6:2:1 to obtain a mixed solution, and graphene oxide is added to In ethanol, stir and mix evenly and ultrasonically oscillate for 20 minutes, then add the mixed solution, continue to stir and oscillate for 45 minutes, pour the obtained solution into a crystallization kettl...

Embodiment 2

[0057] A kind of mixed raw material high temperature resistant capacitor film for automobile and its preparation process

[0058] The high-temperature-resistant capacitor film of mixed raw materials for automobiles is prepared by the following process:

[0059] Step A, add flake graphite into potassium permanganate solution and mix, raise the temperature to 55°C, and stir for 15 hours; after the reaction, pour it into a hydrogen peroxide solution with a concentration of 28%, cool to room temperature, and then washing and drying in vacuum to obtain graphene oxide;

[0060] Step B, graphene oxide modification treatment: 4-nitrophthalonitrile, bisphthalonitrile, and copper acetate are mixed in a molar ratio of 5:2:1 to obtain a mixed solution; graphene oxide is added to In ethanol, stir and mix evenly and ultrasonically oscillate for 20 minutes, then add the mixed solution, and continue to stir and oscillate for 45 minutes; pour the obtained solution into a crystallization kettl...

Embodiment 3

[0068] A kind of mixed raw material high temperature resistant capacitor film for automobile and its preparation process

[0069] The high-temperature-resistant capacitor film of mixed raw materials for automobiles is prepared by the following process:

[0070] Step A, add flake graphite into potassium permanganate solution and mix, raise the temperature to 55°C, and stir for 15 hours; after the reaction, pour it into a hydrogen peroxide solution with a concentration of 28%, cool to room temperature, and then washing and drying in vacuum to obtain graphene oxide;

[0071] Step B, graphene oxide modification treatment: 4-nitrophthalonitrile, bisphthalonitrile, and copper acetate are mixed in a molar ratio of 7:2:1 to obtain a mixed solution; graphene oxide is added to In ethanol, stir and mix evenly and ultrasonically oscillate for 20 minutes, then add the mixed solution, continue to stir and oscillate for 45 minutes; pour the obtained solution into a crystallization kettle at...

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Abstract

The invention discloses a production device and a preparation process of a mixed raw material high temperature resistant capacitor film for automobiles, comprising the following steps: preparing graphene oxide; preparing isotactic polypropylene, trimethylolpropane trimethacrylate, and graphite oxide olefin, 1,2-ethylhexyl phosphate, and antioxidant; the mixed material is conveyed to the extruder, heated and melted by the extruder, and extruded to form a molten and uniform viscous liquid melt, and the viscous liquid is filtered out Impurities and unmelted materials in the fluid melt; place the viscous fluid melt on chilled rollers for cooling and forming, and make cast sheets; put the cast sheets in a longitudinal stretching machine and a transverse orientation device for bidirectional stretching; The film is trimmed, thickness measured and corona treated; it is obtained by winding and aging treatment. The high-temperature-resistant capacitance film of mixed raw materials for automobiles prepared by the invention has stable film-forming performance, stable high-temperature resistance performance, simple and easy-to-operate preparation process, high economic benefit, and is suitable for large-scale popularization and production.

Description

technical field [0001] The invention relates to the technical field of capacitor film material processing, in particular to a production device and a preparation process of a mixed raw material high temperature resistant capacitor film for automobiles. Background technique [0002] The emergence of electric new energy vehicles conforms to the development of the times, and has made major breakthroughs in energy saving, emission reduction, and environmental protection. The rapid development of electric new energy vehicles has higher requirements for electronic systems. In order to ensure that the pressure and impact resistance characteristics of film capacitors can be fully utilized, higher requirements are put forward for automotive capacitor films, but they are currently widely used in automotive applications. The film capacitors used can only guarantee the temperature below 105°C, and it is difficult to use them continuously at higher temperatures. However, there are also ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C48/00B29C48/08B29C48/885H01G4/224H01G4/33B29K23/00B29K105/00
CPCB29C48/0018B29C48/022B29C48/08B29C48/885B29C48/914H01G4/224H01G4/33B29K2023/12B29K2105/0044
Inventor 黄炎煌
Owner 泉州嘉德利电子材料有限公司
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