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The effect of uni-axial stretching on the roughness of microfiltration membranes |
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| Authors: | Jason A. Morehouse Dana L. Taylor Douglas R. Lloyd Desmond F. Lawler Benny D. Freeman Leah S. Worrel |
| Affiliation: | aDepartment of Chemical Engineering, The University of Texas at Austin, Austin, TX 78712, United States bDepartment of Civil, Architectural, and Environmental Engineering, The University of Texas at Austin, Austin, TX 78712, United States |
| Abstract: | Atomic force microscopy (AFM) was used to characterize the surface morphology of uni-axially stretched and non-stretched microporous microfiltration (MF) membranes. The effect of stretching on the pore structure and bulk properties of MF membranes has been previously reported [J.A. Morehouse, L.S. Worrel, D.L. Taylor, D.R. Lloyd, B.D. Freeman, D.F. Lawler, The effect of uni-axial orientation on macroporous membrane structure, J. Porous Mater. 13 (2006) 63–75.]; this paper focuses solely on the use of AFM to characterize the surface of stretched and non-stretched MF membranes. A new way of representing surface roughness that may prove useful in relating roughness to performance in cross-flow applications is presented. |
| Keywords: | Atomic force microscopy Microporous Phase inversion Roughness PVDF |
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