TY - GEN
T1 - Effect of crystallinity on the partial discharge resistance of poly-L-lactide
AU - Ohki, Y.
AU - Miyata, K.
PY - 2009/12/1
Y1 - 2009/12/1
N2 - We have changed the crystallinity of biodegradable poly-L-lactide (PLLA) by drawing or by annealing thermally, and have examined its effect on the partial discharge (PD) resistance. Although the depth eroded by a fixed period of PD degradation becomes shallower when the sample was crystallized by the drawing or by the heat treatment, its reduction ratio is almost equal to the reduction ratio of PD activities due to the decrease in permittivity. Therefore, it is hard to assume that crystallization of PLLA improves its PD resistance to a unit amount of charge.
AB - We have changed the crystallinity of biodegradable poly-L-lactide (PLLA) by drawing or by annealing thermally, and have examined its effect on the partial discharge (PD) resistance. Although the depth eroded by a fixed period of PD degradation becomes shallower when the sample was crystallized by the drawing or by the heat treatment, its reduction ratio is almost equal to the reduction ratio of PD activities due to the decrease in permittivity. Therefore, it is hard to assume that crystallization of PLLA improves its PD resistance to a unit amount of charge.
UR - http://www.scopus.com/inward/record.url?scp=77949279565&partnerID=8YFLogxK
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U2 - 10.1109/CEIDP.2009.5377897
DO - 10.1109/CEIDP.2009.5377897
M3 - Conference contribution
AN - SCOPUS:77949279565
SN - 9781424445592
T3 - Annual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
SP - 539
EP - 542
BT - CEIDP - 2009 Annual Report Conference on Electrical Insulation and Dielectric Phenomena
T2 - 2009 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
Y2 - 18 October 2009 through 21 October 2009
ER -