Talking about the "Relaxation"

Chang-cheng HE

doi:10.14028/j.cnki.1003-3726.2017.11.010

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Talking about the "Relaxation"

更新时间：2022-09-06

- Talking about the "Relaxation"
- Polymer Bulletin Vol. 30, Issue 11, Pages: 80-83(2017)
- 作者机构：
  
  北京师范大学化学学院，北京 100875
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2017.11.010
  CLC：
- Published：01 November 2017，
  
  Received：08 August 2017，
  
  Revised：30 October 2017，
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Chang-cheng HE. Talking about the "Relaxation". [J]. Polymer Bulletin 30(11):80-83(2017)
DOI：

Chang-cheng HE. Talking about the "Relaxation". [J]. Polymer Bulletin 30(11):80-83(2017) DOI： 10.14028/j.cnki.1003-3726.2017.11.010.

摘要

“弛豫”是高分子物理课程中最重要的概念之一。作为“弛豫”的同义语，“松弛”一词应用更为普遍。与“弛豫”或“松弛”相关的术语有多个，如弛豫过程、松弛时间谱、力学松弛、介电松弛、应力松弛和次级松弛等。本文将这些术语集中在一起，分别阐释了其内涵。通过辨析，学习者就可以很好地理解这些概念，从而不会因其名称相近而造成混淆。弛豫现象是物质内部的分子运动在宏观上的一种表现，从绝对的意义上来说，任何物质都存在弛豫现象。但是，在所有的物质中，聚合物的弛豫现象表现最为突出。文章最后揭示了聚合物弛豫现象的分子机理。

Abstract

"Relaxation" is one of the most important concepts in the Polymer Physics courses. There are many derivative terms related to the term " relaxation"

such as relaxation process

relaxation time spectrum

mechanical relaxation

dielectric relaxation

stress relaxation and secondary relaxation

etc. In this paper

these terms were brought together and interpreted respectively. Learners can understand these concepts very well so that they can no longer be confused by their similar names. Relaxation phenomenon is a macroscopic expression of the molecular motions in matter. In absolute sense

all the substances have relaxation phenomena. However

the relaxation phenomenon of the polymers is the most prominent among all the materials. The molecular mechanism of the polymer relaxation phenomenon is revealed.

关键词

高分子物理教学研究聚合物弛豫

Keywords

Polymer physicsTeaching researchPolymerRelaxation

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