Title :
Effect of blend on high-field characteristics of low-density polyethylene
Author :
Cho, Don-Chan ; Mori, Tatsuo ; Mizutani, Teruyoshi ; Ishioka, Mitsugu
Author_Institution :
Dept. of Electr. Eng., Nagoya Univ., Japan
Abstract :
We used two kinds of low-density polyethylene (LDPE) with different densities, 0.9174 and 0.9180 g/cm3 to blend. Using those LDPEs, we prepared the two groups of specimens; Group 1 specimens were passed one time through the extruder, and Group 2 specimens were passed two times through the extruder. For Group 1 specimens,the DC breakdown strength, FBDC, of blended LDPE with a blend ratio of 50 wt% was a little lower than those of virgin LDPE at 30°C but higher at 90°C. For Group 2 specimens, the FBDC is almost the same at 30°C, 60°C and 90°C. The extrusion improved F BDC of the blended LDPE. It did not affect the current density at 30°C and 60°C, but increased it at 90°C. It also reduced the 1350 cm-1 IR absorption peak attributed to gauche conformation decrease
Keywords :
current density; density; electric breakdown; high field effects; infrared spectra; polyethylene insulation; polymer blends; polymer structure; polymerisation; 1350 cm-1; 30 C; 60 C; 90 C; DC breakdown strength; IR absorption peak; LDPE; blend; blend ratio; current density; densities; gauche conformation; high-field characteristics; low-density polyethylene; Current density; Dielectrics and electrical insulation; Electric breakdown; Electrodes; Electromagnetic wave absorption; Morphology; Polyethylene; Polymers; Rheology; Stress;
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.2000.876088
