中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Contour-variable model of constitutive equations for polymer melts

文献类型:期刊论文

作者Qi, Shuanhu1; Yang, Shuang2; Yan, Dadong3
刊名POLYMER
出版日期2014-04-10
卷号55期号:8页码:2094-2102
关键词Polymer Dynamics Constitutive Equation Constraint Release
ISSN号0032-3861
DOI10.1016/j.polymer.2014.02.049
英文摘要Based on a modified expression of the rate of the convective constraint release, we present a new contour-variable model of constitutive equations in which the non-uniform segmental stretch and the non-Gaussian chain statistical treatment of the single chain are considered to describe the polymer chain dynamics and the theological behavior of an entangled system composed of linear polymer chains. The constitutive equations are solved numerically in the cases of steady shear and transient start-up of steady shear. The results indicate that the orientation and stretch, as well as the tube survival probability, have strong dependence on the chain contour variable, especially in the high-shear-rate region. However, the inclusion of the non-uniform features in the constitutive models has little modification comparing with the uniform models in determining the theological properties both qualitatively and quantitatively. (C) 2014 Elsevier Ltd. All rights reserved.
语种英语
WOS记录号WOS:000335085300024
出版者ELSEVIER SCI LTD
源URL[http://ir.iccas.ac.cn/handle/121111/50627]  
专题中国科学院化学研究所
通讯作者Yan, Dadong
作者单位1.Johannes Gutenberg Univ Mainz, Inst Phys, D-55099 Mainz, Germany
2.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
3.Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China
推荐引用方式
GB/T 7714
Qi, Shuanhu,Yang, Shuang,Yan, Dadong. Contour-variable model of constitutive equations for polymer melts[J]. POLYMER,2014,55(8):2094-2102.
APA Qi, Shuanhu,Yang, Shuang,&Yan, Dadong.(2014).Contour-variable model of constitutive equations for polymer melts.POLYMER,55(8),2094-2102.
MLA Qi, Shuanhu,et al."Contour-variable model of constitutive equations for polymer melts".POLYMER 55.8(2014):2094-2102.

入库方式: OAI收割

来源:化学研究所

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