The University of Southampton
University of Southampton Institutional Repository

Electrical properties of TiO2-filled polyimide nanocomposite films prepared via an in situ polymerization process

Electrical properties of TiO2-filled polyimide nanocomposite films prepared via an in situ polymerization process
Electrical properties of TiO2-filled polyimide nanocomposite films prepared via an in situ polymerization process
To fully understand the reliable electrical properties of the nanocomposite films, their physical and chemical behaviors as well as dielectric properties were analyzed. Polyimide/TiO2 (PI/TiO2) nanocomposite films were prepared using in situ dispersion polymerization process. Influences of frequency, temperature and the nano-TiO2 particles loading concentration on dielectric permittivities of the PI/TiO2 nanocomposite films were studied. The dielectric relaxation behavior of the PI/TiO2 nanocomposite films has been investigated with dielectric relaxation spectrum. It was found that interfacial polarization, namely Maxwell–Wagner–Sillars, existed in the PI/TiO2 nanocomposite films with different loading concentration of the nano-TiO2 particles. Dielectric permittivities of the PI/TiO2 nanocomposite films fluctuation with temperature (?50–150 ?C) were attributed to the mobility and thermal expansion of the polymer matrix, for which the Cole–Davidson model, or modified Cole–Cole model, was brought to account.
0379-6779
2670-2674
Zha, Junwei
988918c3-b4c6-4722-8dff-935625954b09
Dang, Zhimin
6ff3e294-e350-408d-8a69-1b0018876ffa
Zhao, Tao
f50b92e9-9a90-47fb-ba95-d2630b7ffaef
Song, Hongtao
37091748-d222-4ce0-bcc3-7d736529d2b2
Chen, George
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Zha, Junwei
988918c3-b4c6-4722-8dff-935625954b09
Dang, Zhimin
6ff3e294-e350-408d-8a69-1b0018876ffa
Zhao, Tao
f50b92e9-9a90-47fb-ba95-d2630b7ffaef
Song, Hongtao
37091748-d222-4ce0-bcc3-7d736529d2b2
Chen, George
3de45a9c-6c9a-4bcb-90c3-d7e26be21819

Zha, Junwei, Dang, Zhimin, Zhao, Tao, Song, Hongtao and Chen, George (2010) Electrical properties of TiO2-filled polyimide nanocomposite films prepared via an in situ polymerization process. Synthetic Metals, 160, 2670-2674.

Record type: Article

Abstract

To fully understand the reliable electrical properties of the nanocomposite films, their physical and chemical behaviors as well as dielectric properties were analyzed. Polyimide/TiO2 (PI/TiO2) nanocomposite films were prepared using in situ dispersion polymerization process. Influences of frequency, temperature and the nano-TiO2 particles loading concentration on dielectric permittivities of the PI/TiO2 nanocomposite films were studied. The dielectric relaxation behavior of the PI/TiO2 nanocomposite films has been investigated with dielectric relaxation spectrum. It was found that interfacial polarization, namely Maxwell–Wagner–Sillars, existed in the PI/TiO2 nanocomposite films with different loading concentration of the nano-TiO2 particles. Dielectric permittivities of the PI/TiO2 nanocomposite films fluctuation with temperature (?50–150 ?C) were attributed to the mobility and thermal expansion of the polymer matrix, for which the Cole–Davidson model, or modified Cole–Cole model, was brought to account.

Text
Zha_J_Synthetic_metals.pdf - Version of Record
Restricted to Registered users only
Download (915kB)
Request a copy

More information

Published date: December 2010
Organisations: Electronics & Computer Science, EEE

Identifiers

Local EPrints ID: 272052
URI: http://eprints.soton.ac.uk/id/eprint/272052
ISSN: 0379-6779
PURE UUID: 90fb2843-79e4-49d7-8c48-9f9edc128936

Catalogue record

Date deposited: 22 Feb 2011 10:29
Last modified: 14 Mar 2024 09:45

Export record

Contributors

Author: Junwei Zha
Author: Zhimin Dang
Author: Tao Zhao
Author: Hongtao Song
Author: George Chen

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×