|本期目录/Table of Contents|

[1]周彬,刘咏松,汪洋.聚合物共混体系动态力学松弛的分子动力学模拟[J].浙江理工大学学报,2019,41-42(自科一):42-48.
　ZHOU Bin,LIU Yongsong,WANG Yang.Molecular dynamical simulation on dynamical mechanical  relaxation of polymer blend system[J].Journal of Zhejiang Sci-Tech University,2019,41-42(自科一):42-48.
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聚合物共混体系动态力学松弛的分子动力学模拟()
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浙江理工大学学报[ISSN:1673-3851/CN:33-1338/TS]

卷:
第41-42卷
期数:
2019年自科一期
页码:
42-48
栏目:
出版日期:
2018-12-15

文章信息/Info

Title:
Molecular dynamical simulation on dynamical mechanical  relaxation of polymer blend system
文章编号:
1673-3851 (2019) 01-0042-07
作者:
周彬; 刘咏松; 汪洋
浙江理工大学理学院，杭州 310018
Author(s):
ZHOU Bin;  LIU Yongsong;  WANG Yang
School of Sciences, Zhejiang Sci-Tech University, Hangzhou 310018, China
关键词:
分子动力学模拟; 动态力学松弛; 聚合物共混体系; 粘弹性
分类号:
O469
文献标志码:
A
摘要:
根据GreenKubo函数和平衡态分子动力学算法，推导应力与剪切模量之间的方程，获得平衡态的模拟计算算法。采用该平衡态分子动力学模拟分别定量计算在一定时间尺度内均聚物体系和聚合物共混体系的剪切模量，探讨聚合物共混体系的动态力学松弛过程。结果表明：短链或分子链刚度小的均聚物松弛过程的剪切模量小于长链或分子链刚度大的均聚物松弛过程的剪切模量；在聚合物中添加分子链刚度小的短链均聚物，可减小聚合物的损耗模量，即减少聚合物松弛过程的能量耗散，从而在一定程度上提高聚合物的粘弹性。并且随着短链均聚物链长的减少以及短链均聚物体积分数的增大，该共混体系的能量损耗减小的程度增大。

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期： 2018-03-07
网络出版日期： 2018-06-22
作者简介： 周彬(1990- )，女，湖北宜昌人，硕士研究生，主要从事聚合物共混体系流变性能及分子动力学方面的研究
通信作者： 汪洋，E-mail：wwyy2001@sina.com
更新日期/Last Update: 2019-03-13