Different polyimides types and their effect on the composite electrical and mechanical properties

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23220%2F21%3A43962757" target="_blank" >RIV/49777513:23220/21:43962757 - isvavai.cz</a>

Result on the web

<a href="https://nextcloud.hszg.de/s/8MEJrofoiwQTkLD?dir=undefined&path=%2FPr%C3%A4sentation&openfile=397104" target="_blank" >https://nextcloud.hszg.de/s/8MEJrofoiwQTkLD?dir=undefined&path=%2FPr%C3%A4sentation&openfile=397104</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Different polyimides types and their effect on the composite electrical and mechanical properties

Original language description

Composite materials are widely used in electrical engineering because of their suitable dielectric and mechanical properties. Usually, the resin matrix and glass fibres are used as the basic component for the composite. The glass fibres, their orientation, density, and type determine the mechanical properties. The polymeric resin determines the thermal endurance and dielectric properties. In the case of higher dielectric withstand and endurance necessity, an additional dielectric barrier is needed. Polyimides are used for the high electric field application, where high endurance is needed. Three types of polyimides were tested in this study to describe the polyimide type influence on the final composite properties. Two polyimides from the Kapton family and one another were tested separately and consequently together as a part of a two-component composite (resin/polyimide). First, the mechanical properties of particular pure polyimides were tested. Second, the dielectric properties and optical surface analyses of pure polyimides were investigated. Third, the composites dielectric properties as volume resistivity, loss factor and breakdown voltage were observed. The results show the impact of polyimide type on the final composite properties from the dielectric and mechanical point of view. The polyimides incorporated in the composite generally decreases the volume resistivity but increases the breakdown voltage, electrical strength, respectively. The increasing/decreasing of loss factor depends on the polyimide type.

Czech name

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Czech description

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Type

O - Miscellaneous

CEP classification

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OECD FORD branch

20201 - Electrical and electronic engineering

Project

<a href="/en/project/EF18_069%2F0009855" target="_blank" >EF18_069/0009855: Electrical Engineering Technologies with High-Level of Embedded Intelligence</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů