Journal article
Electret Stability Related to Spherulites in Polypropylene
Electret charge stability has been related to the size of the spherulites in polypropylene. As the size of the spherulites is decreased the stability is increased. This is seen for isothermal conditions at 90 °C and 120 °C as well as for 90 % relative humidity at 50 °C. The charge release temperature is also increased in thermally stimulated voltage discharge experiments as the size of the spherulites is decreased.
The size of the spherulites is controlled though the cooling rate from polypropylenes liquid state.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2015 |
| Pages: | 2858-2863 |
| ISSN: | 15584135 and 10709878 |
| Types: | Journal article |
| DOI: | 10.1109/TDEI.2015.004891 |
| ORCIDs: | Almdal, Kristoffer and Thomsen, Erik Vilain |
Cooling Humidity Isothermal processes Scanning electron microscopy Surface morphology Thermal stability cooling rate electret charge stability electrets humidity measurement isothermal condition polymers polypropylene polypropylene films relative humidity spherulite spherulites temperature 50 C temperature 90 C to 120 C thermal analysis thermally stimulated voltage discharge
