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

Kód výsledku v 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>

Výsledek na webu

<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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Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

<a href="/cs/project/EF18_069%2F0009855" target="_blank" >EF18_069/0009855: Elektrotechnické technologie s vysokým podílem vestavěné inteligence</a><br>

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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