Journal article
Allyson L. McGaughey, Prathamesh Karandikar, Malancha Gupta, Amy E. Childress
ACS Applied Polymer Materials, 2020
ACS Applied Polymer Materials, 2020
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APA
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McGaughey, A. L., Karandikar, P., Gupta, M., & Childress, A. E. (2020). Hydrophobicity versus Pore Size: Polymer Coatings to Improve Membrane Wetting Resistance for Membrane Distillation. ACS Applied Polymer Materials. https://doi.org/10.1021/acsapm.9b01133
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McGaughey, Allyson L., Prathamesh Karandikar, Malancha Gupta, and Amy E. Childress. “Hydrophobicity versus Pore Size: Polymer Coatings to Improve Membrane Wetting Resistance for Membrane Distillation.” ACS Applied Polymer Materials (2020).
MLA
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McGaughey, Allyson L., et al. “Hydrophobicity versus Pore Size: Polymer Coatings to Improve Membrane Wetting Resistance for Membrane Distillation.” ACS Applied Polymer Materials, 2020, doi:10.1021/acsapm.9b01133.
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@article{allyson2020a,
title = {Hydrophobicity versus Pore Size: Polymer Coatings to Improve Membrane Wetting Resistance for Membrane Distillation},
year = {2020},
journal = {ACS Applied Polymer Materials},
doi = {10.1021/acsapm.9b01133},
author = {McGaughey, Allyson L. and Karandikar, Prathamesh and Gupta, Malancha and Childress, Amy E.}
}
Abstract
Initiated chemical vapor deposition (iCVD) was used to coat two porous substrates (i.e., hydrophilic cellulose acetate (CA) and hydrophobic polytetrafluoroethylene (PTFE)) with a crosslinked fluoropolymer to improve membrane wetting resistance. The coated CA membrane was superhydrophobic and symmetric. The coated PTFE membrane was hydrophobic and asymmetric, with smaller pore size and lower porosity on the top surface than on the bottom surface. Membrane performance was tested in membrane distillation experiments with (1) a high-salinity feed solution and (2) a surfactant-containing feed solution. In both cases, the coated membranes had higher wetting resistance than the uncoated membranes. Notably, wetting resistances were better predicted by LEP distributions than by minimum LEP values. When LEP distributions were skewed towards high LEP values (i.e., when small pores with high LEP were greater in number), significant (measurable) salt passage did not occur. For the high-salinity feed solution, the coat...