کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
822284 906786 2007 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Permeability modelling of polymer-layered silicate nanocomposites
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Permeability modelling of polymer-layered silicate nanocomposites
چکیده انگلیسی

With the addition of very low loading of exfoliated silicate fillers, the permeability of polymer-layered silicate nanocomposites remarkably decreases. In the paper, based on comparisons between experimental results and expectations of several existing models, we propose an improved tortuosity-based model, in which the random motion of gas/liquid molecules in a constrained environment is considered. We show that the pathway of a diffusing gas/liquid molecule in exfoliated polymer-layered silicate nanocomposites is akin to a self-avoiding random walk. The estimated critical volume fractions of clay fillers for the minimum permeability, in terms of the concept of renormalization, concur with available experimental data.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Science and Technology - Volume 67, Issue 14, November 2007, Pages 2895–2902
نویسندگان
, ,