Permeability modelling of polymer-layered silicate nanocomposites
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...
| Main Authors: | , |
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| Format: | Journal Article |
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Elsevier Ltd
2007
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| Online Access: | http://hdl.handle.net/20.500.11937/44686 |
| _version_ | 1848757072942858240 |
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| author | Lu, Chunsheng Mai, Y. |
| author_facet | Lu, Chunsheng Mai, Y. |
| author_sort | Lu, Chunsheng |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-14T09:22:17Z |
| format | Journal Article |
| id | curtin-20.500.11937-44686 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:22:17Z |
| publishDate | 2007 |
| publisher | Elsevier Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-446862017-09-13T15:59:27Z Permeability modelling of polymer-layered silicate nanocomposites Lu, Chunsheng Mai, Y. Polymer-matrix composites (PMCs) Modelling Mechanical properties Nanostructures 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. 2007 Journal Article http://hdl.handle.net/20.500.11937/44686 10.1016/j.compscitech.2007.05.008 Elsevier Ltd restricted |
| spellingShingle | Polymer-matrix composites (PMCs) Modelling Mechanical properties Nanostructures Lu, Chunsheng Mai, Y. Permeability modelling of polymer-layered silicate nanocomposites |
| title | Permeability modelling of polymer-layered silicate nanocomposites |
| title_full | Permeability modelling of polymer-layered silicate nanocomposites |
| title_fullStr | Permeability modelling of polymer-layered silicate nanocomposites |
| title_full_unstemmed | Permeability modelling of polymer-layered silicate nanocomposites |
| title_short | Permeability modelling of polymer-layered silicate nanocomposites |
| title_sort | permeability modelling of polymer-layered silicate nanocomposites |
| topic | Polymer-matrix composites (PMCs) Modelling Mechanical properties Nanostructures |
| url | http://hdl.handle.net/20.500.11937/44686 |