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Dielectric Relaxation of Polar Aromatics in Unoriented and Oriented Linear Low-Density Polyethylene

机译:未取向和取向线性低密度聚乙烯中极性芳烃的介电弛豫

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摘要

The dielectric behavior of some polar aromatics dissolved in nonpolar uoriented and stretched linear low-density polyethylene was investigated within the temperature region between 150 and 350 K. The measurements were carried out in the frequency range 1 kHz to 10 MHz. The maximum temperatures and the half widths of the loss tangent peaks depend upon the shape and the polar structure of guest molecules. Stretching the samples induced a shift of the loss tangent to higher temperatures, decreased the height, and increased the width of tan #delta
机译:在150至350 K的温度范围内,研究了一些溶解于非极性取向和拉伸线性低密度聚乙烯中的极性芳香族化合物的介电行为。测量在1 kHz至10 MHz的频率范围内进行。损耗角正切峰的最高温度和半峰宽取决于客体分子的形状和极性结构。拉伸样品会导致损耗角正切向更高温度移动,降低高度,并增加tan #delta的宽度

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