TY - GEN
T1 - Analysis on thermally stimulated currents in polyethylene-terephthalate and polyethylene-naphthalate
AU - Yang, Peng
AU - Ohki, Yoshimichi
AU - Tian, Fuqiang
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Through analysis of thermally stimulated polarization and depolarization currents (TSPC and TSDC), dielectric properties of polyethylene terephthalate (PET) and polyethylene naphthalate (PEN) are compared. Since the two polymers have very similar chemical structures, their dielectric properties are also similar. However, the temperature at which TSPC or TSDC starts to increase rapidly is about 20 °C higher in PEN than in PET. This difference is mostly due to the fact that the glass transition temperature Tg is higher in PEN. This means that thermal properties including the glass transition affect significantly the dielectric behavior of PET and PEN. At temperatures about 30 °C lower than Tg, the two polymers show a hump in their first-run TSPC spectra, probably originating from impurity or moisture. It is also clearly demonstrated that both PET and PEN can be reliable electrical insulating materials, especially at temperatures below their Tg's.
AB - Through analysis of thermally stimulated polarization and depolarization currents (TSPC and TSDC), dielectric properties of polyethylene terephthalate (PET) and polyethylene naphthalate (PEN) are compared. Since the two polymers have very similar chemical structures, their dielectric properties are also similar. However, the temperature at which TSPC or TSDC starts to increase rapidly is about 20 °C higher in PEN than in PET. This difference is mostly due to the fact that the glass transition temperature Tg is higher in PEN. This means that thermal properties including the glass transition affect significantly the dielectric behavior of PET and PEN. At temperatures about 30 °C lower than Tg, the two polymers show a hump in their first-run TSPC spectra, probably originating from impurity or moisture. It is also clearly demonstrated that both PET and PEN can be reliable electrical insulating materials, especially at temperatures below their Tg's.
KW - PEN
KW - PET
KW - dielectric property
KW - thermally stimulated current (TSC)
UR - http://www.scopus.com/inward/record.url?scp=84906558714&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84906558714&partnerID=8YFLogxK
U2 - 10.1109/ISEIM.2014.6870804
DO - 10.1109/ISEIM.2014.6870804
M3 - Conference contribution
AN - SCOPUS:84906558714
SN - 9784886860866
T3 - Proceedings of the International Symposium on Electrical Insulating Materials
SP - 401
EP - 404
BT - Proceedings of 2014 International Symposium on Electrical Insulating Materials, ISEIM 2014
PB - Institute of Electrical Engineers of Japan
T2 - 2014 International Symposium on Electrical Insulating Materials, ISEIM 2014
Y2 - 1 June 2014 through 5 June 2014
ER -