聚乙烯的热容量 IV.高分子量线性聚乙烯

Journal of Research of the National Bureau of Standards. Section A, Physics and Chemistry Pub Date : 1976-01-01 Epub Date: 1976-02-01 DOI:10.6028/jres.080A.009

Shu-Sing Chang

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引用次数: 0

摘要

通过绝热量热法研究了 10 至 380 K 的高分子量线性聚乙烯样品。发生在 240 K 附近的现象与本系列研究的其他聚乙烯样品中观察到的现象相似，推测是由无定形相中的弛豫过程引起的。在 160 K 附近出现的微弱放热行为，据推测是由淬火样品的稳定化引起的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Heat Capacities of Polyethylene IV. High Molecular Weight Linear Polyethylene.

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Heat Capacities of Polyethylene IV. High Molecular Weight Linear Polyethylene.

A high molecular weight linear polyethylene sample has been studied by adiabatic calorimetry from 10 to 380 K. Two broad temperature regions of unusual spontaneous temperature drift have been observed. The phenomena occurring around 240 K are similar to that observed in other polyethylene samples studied in this series, and are presumed to be caused by the relaxational processes in the amorphous phase. The weak exothermic behavior occurring around 160 K is presumed to be caused by the stabilization of the quenched sample.

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Journal of Research of the National Bureau of Standards. Section A, Physics and Chemistry

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