LDPE/MgO Nanocomposite Dielectrics for Electrical-Insulation and Ferroelectret-Transducer Applications
- Published results on LDPE/MgO nanocomposites (3wt%) show that they promise to be good electrical-insulation materials. In this work, the nanocomposites are examined as a potential (ferro-)electret material as well. Isothermal surface-potential decay measurements show that charged LDPE/MgO films still exhibit significant surface potentials after heating for 4 hours at 80 degrees C, which suggests good capabilities of LDPE/MgO nanocomposites to hold electric charges of both polarities. Open-tubular-channel ferroelectrets prepared from LDPE/MgO nanocomposite films show significant piezoelectricity with d(33) coefficients of about 20 pC/N after charging and are stable up to temperatures of at least 80 degrees C. Thus LDPE/MgO nanocomposites may become available as a new ferroelectret material. To increase their d(33) coefficients, it is desirable to optimize the charging conditions and the ferroelectret structure.
Author details: | Quyet Doan NguyenORCiDGND, Reimund GerhardORCiDGND |
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ISBN: | 978-1-5386-6389-9 |
ISBN: | 978-1-5386-6388-2 |
ISBN: | 978-1-5386-6390-5 |
Title of parent work (English): | 2018 IEEE 2nd International Conference on Dielectrics (ICD) |
Publisher: | IEEE |
Place of publishing: | New York |
Publication type: | Other |
Language: | English |
Year of first publication: | 2018 |
Publication year: | 2018 |
Release date: | 2022/03/16 |
Tag: | LDPE nanocomposites; electroacoustic probing; ferroelectrets; space-charge and polarization profiles; thermally stimulated discharge |
Number of pages: | 4 |
Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
DDC classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
Peer review: | Referiert |