Production device and preparation technology of mixed raw material high temperature resistant capacitance film for automobile

A technology of mixing raw materials and production equipment, which is applied to the parts of fixed capacitors, fixed capacitor shells/packages, laminated capacitors, etc., can solve the problem of poor uniformity of film-forming capacitor films, and achieve high cooling molding quality , Improve high temperature resistance and stable film forming performance

Active Publication Date: 2020-08-11
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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  • Production device and preparation technology of mixed raw material high temperature resistant capacitance film for automobile
  • Production device and preparation technology of mixed raw material high temperature resistant capacitance film for automobile
  • Production device and preparation technology of mixed raw material high temperature resistant capacitance film for automobile

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 technology of a mixed raw material high temperature resistant capacitance film for an automobile. The preparation technology comprises thefollowing steps: 1, preparing oxidized graphene; mixing isotatic polypropylene, trimethylolpropane trimethacrylate, oxidized graphene, 1,2-ethylhexyl phosphate and an antioxygen to form a mixture; conveying the mixture in an extruder, carrying out heating and melting in the extruder, and extruding to form uniformly melted viscous state melt, and filtering to remove impurities and non-melt in theviscous state melt; placing the viscous state melt on a chilling roller for cooling forming to obtain a casting strip; placing the casting strip in a longitudinal stretcher and a transverse orientation device for bidirectional stretching; carrying out trimming, thickness measurement and corona treatment on a thin film; and carrying out winding and aging treatment to obtain the mixed raw material high temperature resistant capacitance film. The mixed raw material high temperature resistant capacitance film is stable in film forming performance and high temperature resistance; and the preparation technology is simple and easy to operate, high in economic benefit and 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 Applications(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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