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Abstract <p>The results of measuring the glass transition temperature of amorphous regions of three variants of partially crystalline polyamide-11 tubes after aging at elevated temperature, thermal cycling and in a thermal-humidity environment are presented. It is shown that, with an increase in the glass transition temperature from 4 to 56°C, the shape of the tensile-strain curves changes, the peculiarity of which is the appearance of a yield region. The difference between the upper and lower yield points increases with an increase in the difference between the glass transition temperature and the temperature of deformation loading.</p>

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A Study of the Influence of Temperature, Moisture, and Salt Solution on the Properties of Polyamide-11. 2. Deformability and Glass Transition

  • 期刊论文

  • 发表日期：

    2025年3月1日

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  • O. V. Startsev,
  • E. V. Dvirnaya,
  • G. V. Kornienko,
  • T. V. Koval,
  • I. M. Veligodskiy

摘要

Abstract

The results of measuring the glass transition temperature of amorphous regions of three variants of partially crystalline polyamide-11 tubes after aging at elevated temperature, thermal cycling and in a thermal-humidity environment are presented. It is shown that, with an increase in the glass transition temperature from 4 to 56°C, the shape of the tensile-strain curves changes, the peculiarity of which is the appearance of a yield region. The difference between the upper and lower yield points increases with an increase in the difference between the glass transition temperature and the temperature of deformation loading.