کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
671582 | 1459104 | 2007 | 18 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A network scission model for wormlike micellar solutions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
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چکیده انگلیسی
In this paper a network model for wormlike micellar solutions is presented which incorporates scission and reforming of the chains, based on a discrete version of Cates' 'living polymer' theory. Specifically we consider two elastically active Hookean species: long chains which can break to form two short chains, which can themselves recombine to form a long chain. The chains undergo rupture at a rate dependent on the local elongation and deformation rate. This two species model, developed ultimately to enable understanding of inhomogeneous flows, is examined in this paper for various deformations; steady-state shear flow, step strain, extension, and linear small amplitude oscillatory flow in homogeneous conditions. We also examine how systematic variations in the model parameters affect the rheological predictions and material functions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Newtonian Fluid Mechanics - Volume 144, Issues 2â3, 20 July 2007, Pages 122-139
Journal: Journal of Non-Newtonian Fluid Mechanics - Volume 144, Issues 2â3, 20 July 2007, Pages 122-139
نویسندگان
Paula A. Vasquez, Gareth H. McKinley, L. Pamela Cook,