TY - GEN
T1 - Dielectric properties of biodegradable polylactic acid and starch ester
AU - Hirai, N.
AU - Maeno, Y.
AU - Tamura, H.
AU - Kaneko, D.
AU - Tanaka, T.
AU - Ohki, Y.
AU - Tajitsu, Y.
AU - Kohtoh, M.
AU - Okabe, S.
PY - 2004
Y1 - 2004
N2 - In order to examine the applicability of biodegradable polymers to the fields of electrical insulation, several dielectric properties of two typical biodegradable polymers, polylactic acid (PLA) and starch ester (SE), are examined. A fairly larger amount of space charge is accumulated in both polymers in comparison to low-density polyethylene (LDPE). This seems partly due to the presence of hydroxyl and carbonyl groups in these polymers. Permittivity and conductivity are higher in SE than PLA that has the values close to those of LDPE. The dielectric breakdown strength is lower in SE and is higher in PLA than LDPE. As for the resistance to photodegradation by ultraviolet photons, SE is stronger than PLA, although the two are much inferior to LDPE.
AB - In order to examine the applicability of biodegradable polymers to the fields of electrical insulation, several dielectric properties of two typical biodegradable polymers, polylactic acid (PLA) and starch ester (SE), are examined. A fairly larger amount of space charge is accumulated in both polymers in comparison to low-density polyethylene (LDPE). This seems partly due to the presence of hydroxyl and carbonyl groups in these polymers. Permittivity and conductivity are higher in SE than PLA that has the values close to those of LDPE. The dielectric breakdown strength is lower in SE and is higher in PLA than LDPE. As for the resistance to photodegradation by ultraviolet photons, SE is stronger than PLA, although the two are much inferior to LDPE.
UR - http://www.scopus.com/inward/record.url?scp=15844411520&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=15844411520&partnerID=8YFLogxK
U2 - 10.1109/icsd.2004.1350296
DO - 10.1109/icsd.2004.1350296
M3 - Conference contribution
AN - SCOPUS:15844411520
SN - 0780383486
SN - 9780780383487
T3 - Proceedings of the 2004 IEEE International Conference on Solid Dielectrics ICSD 2004
SP - 87
EP - 90
BT - Proceedings of the 2004 IEEE International Conference on Solid Dielectrics ICSD 2004
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - Proceedings of the 2004 IEEE International Conference on Solid Dielectrics ICSD 2004
Y2 - 5 July 2004 through 9 July 2004
ER -