Modeling the Effects of Interfacial Characteristics on Gas Permeation Behavior of Nanotube–Mixed Matrix Membranes
| Autor: | Mohammadreza Omidkhah, Ehsan Chehrazi, Mohammad Karimi, Alireza Sharif |
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| Rok vydání: | 2017 |
| Předmět: |
Imagination
Nanotube Materials science media_common.quotation_subject 02 engineering and technology Permeation Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 010402 general chemistry 021001 nanoscience & nanotechnology Thermal conduction 01 natural sciences 0104 chemical sciences Condensed Matter::Soft Condensed Matter Condensed Matter::Materials Science Matrix (mathematics) Membrane General Materials Science Gas separation Composite material 0210 nano-technology Science technology and society media_common |
| Zdroj: | ACS Applied Materials & Interfaces. 9:37321-37331 |
| ISSN: | 1944-8252 1944-8244 |
| Popis: | Theoretical approaches that accurately predict the gas permeation behavior of nanotube-containing mixed matrix membranes (nanotube–MMMs) are scarce. This is mainly due to ignoring the effects of nanotube/matrix interfacial characteristics in the existing theories. In this paper, based on the analogy of thermal conduction in polymer composites containing nanotubes, we develop a model to describe gas permeation through nanotube–MMMs. Two new parameters, “interfacial thickness” (aint) and “interfacial permeation resistance” (Rint), are introduced to account for the role of nanotube/matrix interfacial interactions in the proposed model. The obtained values of aint, independent of the nature of the permeate gas, increased by increasing both the nanotubes aspect ratio and polymer–nanotube interfacial strength. An excellent correlation between the values of aint and polymer–nanotube interaction parameters, χ, helped to accurately reproduce the existing experimental data from the literature without the need to re... |
| Databáze: | OpenAIRE |
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