Modified polytetrafluoroethylene
- Three poly(tetrafluoroethylene-hexafluoropropylene-vinylidenefluoride) (TFE-HFP-VDF or THV) terpolymers (Dyneon (R)) with different monomer ratios are investigated to demonstrate the concept of "modified" PTFE for space-charge electrets. HFP and VDF monomers distort the highly ordered PTFE molecules, which effectively enhances processability and adversely affects space-charge storage. Particularly, VDF component renders the material polar and probably also more conductive, partially undermining the space-charge-storage capabilities of PTFE. Nevertheless, the terpolymer THV815 with a TFE/HFP/VDF wt% ratio of 76.1/10.9/13 combines easy processability and relatively good space-charge stability. Our results shed light on novel concepts for space-charge electret materials with enhanced processing properties and reasonable charge-storage capabilities.
Author details: | Changsheng Li, Gangjin ChenORCiD, Xunlin QiuORCiD, Meng Gao, Reimund GerhardORCiDGND |
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DOI: | https://doi.org/10.7567/1882-0786/ab5b23 |
ISSN: | 1882-0778 |
ISSN: | 1882-0786 |
Title of parent work (English): | Applied physics express : APEX |
Subtitle (English): | towards easy-to-process space-charge electret materials |
Publisher: | IOP Publ. Ltd. |
Place of publishing: | Bristol |
Publication type: | Article |
Language: | English |
Date of first publication: | 2019/12/04 |
Publication year: | 2019 |
Release date: | 2023/10/20 |
Volume: | 13 |
Issue: | 1 |
Article number: | 011003 |
Number of pages: | 5 |
Funding institution: | National Natural Science Foundation of ChinaNational Natural Science; Foundation of China (NSFC) [51177032] |
Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie |
DDC classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
Peer review: | Referiert |