Effect of blend on high-field characteristics of low-density polyethylene

摘要: We used two kinds of low-density polyethylene (LDPE) with different densities, 0.9174 and 0.9180 g/cm/sup 3/ to blend. Using those LDPEs, we prepared the groups specimens; Group 1 specimens were passed one time through extruder, 2 times extruder. For specimens,the DC breakdown strength, F/sub BDC/, blended LDPE a blend ratio 50 wt% was little lower than virgin at 30/spl deg/C but higher 90/spl deg/C. specimens, BDC/ is almost same deg/C, 60/spl The extrusion improved LDPE. It did not affect current density increased it also reduced 1350 cm/sup -1/ IR absorption peak attributed gauche conformation decrease.