Title :
TSDC characterization of LDPE/carbon black composites
Author :
Kowalski, E.L. ; Ruvolo-Filho, A. ; Robert, R.
Author_Institution :
Inst. de Technol. para o Desenvolvimento, LACTEC, Curitiba, Brazil
Abstract :
The thermally stimulated depolarization current in range temperature of -194°C a 100°C, has been applied for study the depolarization of polyethylene composites in form of film and filled with commercial or oxidative surface treatment carbon black. The diagrams of TSDC obtained shows that the composite in which the carbon black received oxidative surface treatment reducing on an average a depolarization current intensity in one a magnitude order if compared to the composite with commercial carbon black. Therefore above the γ transition the difference to begin accentuate having a peak 55 times in the region of -30°C.
Keywords :
carbon; composite materials; dielectric depolarisation; oxidation; polyethylene insulation; polymer films; surface treatment; thermally stimulated currents; -194 to 100 degC; C; LDPE-carbon black composites; oxidative surface treatment; polyethylene composites; polymer films; thermally stimulated depolarization current; Aggregates; Amorphous materials; Composite materials; Crystallization; Plastic films; Polyethylene; Polymers; Scanning electron microscopy; Surface treatment; Temperature distribution;
Conference_Titel :
Properties and Applications of Dielectric Materials, 2003. Proceedings of the 7th International Conference on
Print_ISBN :
0-7803-7725-7
DOI :
10.1109/ICPADM.2003.1218604
