Scholarlink

<p>The changes in the supramolecular structure of ultrafine polypropylene fibers exposed to microwave radiation are studied. It is found out that heating of materials based on ultrafine fibers with a&#xa0;water content of approximately 10 wt.% causes phase transformations within the polymer, leading to the transition of the unstable mesomorphic phase to a&#xa0;stable monoclinic phase and the formation of a&#xa0;more homogeneous crystalline polymer structure. This change in the supramolecular organization of polypropylene leads to an increase in the melting point and a&#xa0;decrease in the moisture absorption, but does not cause any degradation or affect the morphological or sorption properties of the fibrous material.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Exposure to electromagnetic radiation as a method for controlling the structure of ultrafine polypropylene fibers

  • 期刊论文

  • 发表日期：

    2026年7月8日

查看全文
  • A. I. Potekaev,
  • I. A. Lysak,
  • G. V. Lysak

摘要

The changes in the supramolecular structure of ultrafine polypropylene fibers exposed to microwave radiation are studied. It is found out that heating of materials based on ultrafine fibers with a water content of approximately 10 wt.% causes phase transformations within the polymer, leading to the transition of the unstable mesomorphic phase to a stable monoclinic phase and the formation of a more homogeneous crystalline polymer structure. This change in the supramolecular organization of polypropylene leads to an increase in the melting point and a decrease in the moisture absorption, but does not cause any degradation or affect the morphological or sorption properties of the fibrous material.