2014
DOI: 10.1155/2014/659148
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Influence of Processing Type in the Morphology of Membranes Obtained from PA6/MMT Nanocomposites

Abstract: The nanocomposites have an extensive use in the current process of membrane preparation, taking into account their unique features as membranes. Thus, the study of nanocomposite processing to obtain membranes is highly important. In this work, Brazilian clay was used (Brasgel PA) for the preparation of polyamide/clay nanocomposite. The nanocomposites were produced in a high rotation homogenizer and in a twin screw extruder. From the nanocomposites and pure polymers processed in the two equipments, membranes we… Show more

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Cited by 7 publications
(9 citation statements)
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“…According to Figure 3(b2,c2), the addition of clay led to a decrease in the filtering skin attached to the membrane porous support, increasing the porosity of the support as compared to the pure PES membranes. This phenomenon was also observed by the authors in [18][19][20]. The increase in porosity The addition of clay, which is hydrophilic, gives the membrane surface this characteristic [15,16].…”
Section: Effect Of Clay On Membrane Hydrophilicitysupporting
confidence: 72%
“…According to Figure 3(b2,c2), the addition of clay led to a decrease in the filtering skin attached to the membrane porous support, increasing the porosity of the support as compared to the pure PES membranes. This phenomenon was also observed by the authors in [18][19][20]. The increase in porosity The addition of clay, which is hydrophilic, gives the membrane surface this characteristic [15,16].…”
Section: Effect Of Clay On Membrane Hydrophilicitysupporting
confidence: 72%
“…21.8° of the crystalline plan (001), which can be attributed to phase γ (gamma) of PA6 36,37 . The addition of 10% w/w of CaCl 2 in the solution of membrane preparation did not cause significant changes with regard to the crystalline behavior and the main crystalline phase is α, as illustrated by the X-ray diffraction curve of pure PA6 membranes and their hybrids.…”
Section: Water Permeability and Oil Retentionmentioning
confidence: 99%
“…É possível observar ainda nas membranas híbridas obtidas, a ausência do pico característico da argila que se posiciona entre 5-7°, indicando uma possível esfoliação e/ou esfoliação parcial. Entretanto, para a membrana de PA6 com 1% de argila, aparece um ombro no intervalo entre 2,5 a 4,0º, o que se deve a uma provável intercalação parcial das lamelas da argila [25,27].…”
Section: Figuraunclassified
“…Analisando a PA6 pura e seus híbridos, foi possível observar que a fase cristalina predominante é a alfa [24][25][26]29]. Além disso, foi constatada nas membranas com 3% e 5% de argila, a presença de um pico em aproximadamente 27°, referente ao elemento quartzo da argila.…”
Section: Figuraunclassified
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