A mesoscopic tube model of polymer/layered silicate nanocomposites

被引：16

作者：

Eslami, Hassan ^{[1
]}

Grmela, Miroslav ^{[1
]}

Bousmina, Mosto ^{[2
,3
,4
]}

机构：

[1] Ecole Polytechn Montreal, Ctr Appl Res Polymers & Composites CREPEC, Montreal, PQ H3C 3A7, Canada

[2] Univ Laval, Dept Chem Engn, Canada Res Chair Polymer Phys & Nanotechnol, Ste Foy, PQ G1K 7P4, Canada

[3] Hassan II Acad Sci & Technol, Rabat, Morocco

[4] Univ Laval, Dept Chem Engn, Ctr Appl Res Polymers & Composites CREPEC, Ste Foy, PQ G1K 7P4, Canada

来源：

RHEOLOGICA ACTA | 2009年 / 48卷 / 03期

基金：

加拿大自然科学与工程研究理事会;

关键词：

Tube model; Nanocomposite; Rheological model; RHEOLOGICAL MODELS; GENERAL FORMALISM; COMPLEX FLUIDS; DYNAMICS; THERMODYNAMICS; SHEAR; FORMULATION; REPTATION; STRESS;

D O I：

10.1007/s00397-008-0321-0

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

Rheology of isothermal suspensions of completely exfoliated silicate lamellae in polymer melts is investigated. In order to express more faithfully the physics involved in low shear rates and low frequencies, we model the polymer molecules composing the melt as chains whose motion is confined to a tube formed by surrounding chains and lamellae. In the absence of lamellae, the model reduces to the mesoscopic model of reptating chains developed in Eslami and Grmela (Rheol Acta, 2008). If the chains are seen only as FENE-P dumbbells, the model reduces to the model developed in Eslami et al. (J Rheol 51:1189-1222, 2007). Responses to oscillatory, transient, and steady shear flows are calculated and compared with available experimental data. Particular attention is payed to the region of low shear rate and low frequency.

引用

页码：317 / 331

页数：15

共 32 条

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