Abstract
The field dependent conduction current of both Dupont original and corona-resistant polyimide films before and after corona-aged 8 hours at 10 kV/mm and 20 kV/mm electric field, and at different temperatures was measured respectively. The results show that the electrical degradation threshold of original and corona-resistance polyimide film is 35 kV/mm and 45 kV/mm, and decreases with the increasing of aging electric field. With the increase of temperature, the electric degradation threshold of original film increases and of the corona-resistant film decreases. The conduction current of corona-resistant polyimide film is larger by about one order of magnitude than that of original one. The trap energy level of 0.9 eV and 0.7 eV was derived from Arrehnius plot respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 465-468 |
| Number of pages | 4 |
| Journal | Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research |
| Volume | 20 |
| Issue number | 5 |
| State | Published - Oct 2006 |
| Externally published | Yes |
Keywords
- Conduction current
- Electrical degradation threshold
- Organic polymer materials
- Original and corona-resistant polyimide films
- Trap level