[1]郝如江,陈静波,申长雨,等.高聚物熔体松弛时间谱的计算[J].郑州大学学报(工学版),2001,22(04):90-92.[doi:10.3969/j.issn.1671-6833.2001.04.025]
　Hao Rujiang,CHEN Jingbo,Shen Changyu,et al.Calculation of polymer melt relaxation time spectrum[J].Journal of Zhengzhou University (Engineering Science),2001,22(04):90-92.[doi:10.3969/j.issn.1671-6833.2001.04.025]

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高聚物熔体松弛时间谱的计算()

分享到：

《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

22

期数:

2001年04期

页码:

90-92

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

Calculation of polymer melt relaxation time spectrum

作者:

郝如江; 陈静波; 申长雨; 等.

郑州大学橡塑模具国家工程研究中心,, 郑州大学橡塑模具国家工程研究中心,, 郑州大学橡塑模具国家工程研究中心,, 郑州大学橡塑模具国家工程研究中心,

Author(s):

Hao Rujiang; CHEN Jingbo; Shen Changyu; etc

关键词:

松弛时间谱;  最小二乘法;  线性回归

Keywords:

relaxation time spectrum;  Least squares;  Linear regression

DOI:

10.3969/j.issn.1671-6833.2001.04.025

文献标志码:

A

摘要:

松弛时间谱是描述聚合物熔体粘弹性质的重要参数,它不能通过实验直接获得.基于聚合物熔体储能模量和耗能模量,给出了采用最小二乘线性回归得到熔体松弛时间谱的计算方法.通过一个算例检验该算法的有效性,分析了松弛时间及松弛模态数的选取对计算结果的影响,并提出相应的改进的措施.

Abstract:

The relaxation time spectrum is an important parameter to describe the viscoelastic nature of the polymer melt, which cannot be obtained directly by experiments. Based on the storage modulus and energy dissipation modulus of polymer melt, a calculation method for obtaining melt relaxation time spectrum by least squares linear regression is given. The effectiveness of the algorithm is tested by an example, the influence of relaxation time and relaxation mode selection on the calculation results is analyzed, and corresponding improvement measures are proposed.

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