Title :
Charge transport and space charge formation in low-density polyethylene
Author :
Kaneko, K. ; Semi, H. ; Mizutani, T. ; Mori, Takayoshi ; Ishioka, M.
Author_Institution :
Nagoya Univ., Japan
Abstract :
In the low-density polyethylene prepared by the high-pressure process (LDPE) and in that polymerized by using the metallocene catalyst (m-LDPE), homo space charges with same polarity as the semiconducting electrode were observed. This indicates that charges are easily injected from the semiconducting electrode independent of its polarity. The space charge in LDPEs with the density of 0.9185 g/cm3 was broadly distributed and that in m-LDPE with that of 0.9227 g/cm3 was accumulated near the semiconducting electrode. These suggest that the density and structure of polyethylene affect the charge transport and space charge phenomena. These effects were discussed by using computer simulation
Keywords :
polyethylene insulation; space charge; charge injection; charge transport; computer simulation; density; high pressure process; low density polyethylene; metallocene catalyst; polymerization; semiconducting electrode; space charge; structure; Computer simulation; Current measurement; Dielectrics and electrical insulation; Electric breakdown; Electrodes; Polyethylene; Polymers; Semiconductivity; Space charge; Voltage;
Conference_Titel :
Properties and Applications of Dielectric Materials, 2000. Proceedings of the 6th International Conference on
Conference_Location :
Xi´an
Print_ISBN :
0-7803-5459-1
DOI :
10.1109/ICPADM.2000.875632
