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 |
|---|---|
| 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 |
