2019
DOI: 10.1590/1980-5373-mr-2018-0854
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Polyethersulfone Hollow Fiber Membranes Developed for Oily Emulsion Treatment

Abstract: Polyethersulfone (PES) hollow fiber membranes were produced, containing 3% of two types of clay (Brasgel PA-MMT and Cloisite NA-CLNa), in order to modify the characteristics of the polyethersulfone membrane. By means of the X-ray diffraction, it was possible to observe an exfoliated and/or partially exfoliated structure in the membranes containing clay. From the analysis of contact angle, it was possible to notice an increase in the hydrophilicity of the membrane with the introduction of the clay. Through scan… Show more

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Cited by 8 publications
(6 citation statements)
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“…The hollow fiber membrane permeation modules were produced for use in the flow and separation tests, where each had a total of five membranes. Module manufacturing followed the methodology of [27], where 20 cm long pipettes were used, in which the membranes were deposited and waterproofed with epoxy resin at the ends to perform the analysis in distilled water. Hollow fiber membranes were prepared using an extruder containing two concentric holes, allowing simultaneous extrusion of the internal liquid (distilled water), which aims to prevent solution collapse, and the polymer solution, as shown in Figure 3.…”
Section: Permeation Module Productionmentioning
confidence: 99%
See 1 more Smart Citation
“…The hollow fiber membrane permeation modules were produced for use in the flow and separation tests, where each had a total of five membranes. Module manufacturing followed the methodology of [27], where 20 cm long pipettes were used, in which the membranes were deposited and waterproofed with epoxy resin at the ends to perform the analysis in distilled water. Hollow fiber membranes were prepared using an extruder containing two concentric holes, allowing simultaneous extrusion of the internal liquid (distilled water), which aims to prevent solution collapse, and the polymer solution, as shown in Figure 3.…”
Section: Permeation Module Productionmentioning
confidence: 99%
“…The hollow fiber membrane permeation modules were produced for use in the flow and separation tests, where each had a total of five membranes. Module manufacturing followed the methodology of [27], where 20 cm long pipettes were used, in which the membranes were deposited and waterproofed with epoxy resin at the ends to perform the analysis in distilled water.…”
Section: Permeation Module Productionmentioning
confidence: 99%
“…The flow started to stabilize in approximately 60 min of assay, excluding the Pure PES membrane, which began the assay practically stabilized. This can be done from the hydrophilicity of PES, as seen by contact angle and also from the mechanical compaction promoted by the applied pressure, decreasing the membrane permeability [34]. The membranes containing 5% MMT obtained a higher flux, which can be attributed to the interaction between polymer/clay/solvent and the morphology of the membrane, from a larger number of pores and macropores in the porous support of the membrane, as well as a smaller thickness of the filter layer [19].…”
Section: Membrane Flow Properties and Efficiencymentioning
confidence: 99%
“…As membranas híbridas tem capacidade de combinar os componentes inorgânicos e orgânicos durante a formação ou polimerização da membrana, oferecendo vantagens em relação ao tratamento de águas e efluentes (Gohil & Ray, 2017). A adição de nanopartículas inorgânicas como a argila (de Medeiros et al, 2017;da Silva Barbosa Ferreira et al, 2019), óxido de zinco (ZnO) (Ponnamma et al, 2019), entre outros, em soluções poliméricas para obter membranas híbridas é uma alternativa para a melhoria de propriedades físico-químicas, além de apresentar bom desempenho em diferentes processos de separação e na dessalinização de águas salobras e salinas (Esfahani et al, 2019). O uso de ZnO para obtenção de membranas de nanocompósitos poliméricos é bastante utilizado, pois melhora as propriedades das membranas e tem se mostrado confiável para purificação e descontaminação de água e efluentes domésticos e industriais.…”
Section: Introductionunclassified