Study of The Influence of Viscosity on The Morphology of Polyethersulfone Hollow Fiber Membranes/Additives
The aim of this work was to prepare hollow fiber membrane changing the composition of polyethersulfone, polyvinylpyrrolidone (PVP) and clay, through the phase inversion technique, evaluating the influence of these constituents on the viscosity and distinct morphologies. Flat membranes were produced and their contact angles were determined and showed difference when clay was added and/or PVP. For the hollow fiber membranes, the +addition of these constituents, PVP and/or clay in the solution, can change significantly the viscosity and effect the membrane formation. From the scanning electron microscopy (SEM) images, it was identified the influence on morphology with the compositional variation of each additive, with the PVP promoting shorter precipitation time, favoring the formation of pores of the “fingers” type and increasing the presence of macrovoids. The addition of clay favored the formation of spherical pores, reducing the presence of macropores.
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2019
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oai:scielo:S1516-143920190007002842020-02-12Study of The Influence of Viscosity on The Morphology of Polyethersulfone Hollow Fiber Membranes/AdditivesDias,Rafael AgraMedeiros,Vanessa da NóbregaSilva,Bárbara Ianny ArrudaAraújo,Edcleide MariaLira,Hélio de Lucena Membranes hollow fiber polyethersulfone clay phase inversion The aim of this work was to prepare hollow fiber membrane changing the composition of polyethersulfone, polyvinylpyrrolidone (PVP) and clay, through the phase inversion technique, evaluating the influence of these constituents on the viscosity and distinct morphologies. Flat membranes were produced and their contact angles were determined and showed difference when clay was added and/or PVP. For the hollow fiber membranes, the +addition of these constituents, PVP and/or clay in the solution, can change significantly the viscosity and effect the membrane formation. From the scanning electron microscopy (SEM) images, it was identified the influence on morphology with the compositional variation of each additive, with the PVP promoting shorter precipitation time, favoring the formation of pores of the “fingers” type and increasing the presence of macrovoids. The addition of clay favored the formation of spherical pores, reducing the presence of macropores.info:eu-repo/semantics/openAccessABM, ABC, ABPolMaterials Research v.22 suppl.1 20192019-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000700284en10.1590/1980-5373-mr-2018-0913 |
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Dias,Rafael Agra Medeiros,Vanessa da Nóbrega Silva,Bárbara Ianny Arruda Araújo,Edcleide Maria Lira,Hélio de Lucena |
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Dias,Rafael Agra Medeiros,Vanessa da Nóbrega Silva,Bárbara Ianny Arruda Araújo,Edcleide Maria Lira,Hélio de Lucena Study of The Influence of Viscosity on The Morphology of Polyethersulfone Hollow Fiber Membranes/Additives |
author_facet |
Dias,Rafael Agra Medeiros,Vanessa da Nóbrega Silva,Bárbara Ianny Arruda Araújo,Edcleide Maria Lira,Hélio de Lucena |
author_sort |
Dias,Rafael Agra |
title |
Study of The Influence of Viscosity on The Morphology of Polyethersulfone Hollow Fiber Membranes/Additives |
title_short |
Study of The Influence of Viscosity on The Morphology of Polyethersulfone Hollow Fiber Membranes/Additives |
title_full |
Study of The Influence of Viscosity on The Morphology of Polyethersulfone Hollow Fiber Membranes/Additives |
title_fullStr |
Study of The Influence of Viscosity on The Morphology of Polyethersulfone Hollow Fiber Membranes/Additives |
title_full_unstemmed |
Study of The Influence of Viscosity on The Morphology of Polyethersulfone Hollow Fiber Membranes/Additives |
title_sort |
study of the influence of viscosity on the morphology of polyethersulfone hollow fiber membranes/additives |
description |
The aim of this work was to prepare hollow fiber membrane changing the composition of polyethersulfone, polyvinylpyrrolidone (PVP) and clay, through the phase inversion technique, evaluating the influence of these constituents on the viscosity and distinct morphologies. Flat membranes were produced and their contact angles were determined and showed difference when clay was added and/or PVP. For the hollow fiber membranes, the +addition of these constituents, PVP and/or clay in the solution, can change significantly the viscosity and effect the membrane formation. From the scanning electron microscopy (SEM) images, it was identified the influence on morphology with the compositional variation of each additive, with the PVP promoting shorter precipitation time, favoring the formation of pores of the “fingers” type and increasing the presence of macrovoids. The addition of clay favored the formation of spherical pores, reducing the presence of macropores. |
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ABM, ABC, ABPol |
publishDate |
2019 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000700284 |
work_keys_str_mv |
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