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Gas transport properties of polypropylene/clay composite membranes

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dc.contributor.authorGarcía Villaluenga, Juan Pedro
dc.contributor.authorKhayet Souhaimi, Mohamed
dc.contributor.authorLopez Manchado, M. A.
dc.contributor.authorValentin, J. L.
dc.contributor.authorSeoane Rodríguez, Benjamín
dc.contributor.authorMengual Cabezón, Juan Ignacio
dc.date.accessioned2023-06-20T10:41:08Z
dc.date.available2023-06-20T10:41:08Z
dc.date.issued2007-04
dc.description© 2007 Elsevier Ltd. The authors of this study gratefully acknowledge the financial support of the Ministry of Science and Technology (MCYT, Spain) through its project No. PPQ2003-03299 and MAT 2004-00825. Dr. López Manchado also acknowledges the concession of a Ramón & Cajal contract from the MCYT.
dc.description.abstractPolypropylene membranes modified with natural and organically modified montmorillonite clays were prepared. The permeability, diffusivity and solubility of helium, oxygen and nitrogen were determined for the unfilled and filled membranes over the temperature range 25-65 degrees C. Physical properties of polypropylene membranes were investigated using X-ray diffraction, thermogravimetric analyser, tensile testing and differential scanning calorimetry. The results showed that the filled membranes exhibit lower gas permeability compared to the unfilled polypropylene membrane. For helium, a reduced diffusivity is mainly responsible for the reduction in the permeability, in contrast, for nitrogen and oxygen, both diffusivity and solubility were reduced by the presence of fillers. The X-ray diffraction spectra showed that the incorporation of the unmodified and modified clay did not affect the crystallographic nature of polypropylene.
dc.description.departmentDepto. de Estructura de la Materia, Física Térmica y Electrónica
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipMinistry of Science and Technology (MCYT, Spain)
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/24814
dc.identifier.doi10.1016/j.eurpolymj.2007.01.018
dc.identifier.issn0014-3057
dc.identifier.officialurlhttp://dx.doi.org/10.1016/j.eurpolymj.2007.01.018
dc.identifier.relatedurlhttp://www.sciencedirect.com/
dc.identifier.urihttps://hdl.handle.net/20.500.14352/50989
dc.issue.number4
dc.journal.titleEuropean polymer journal
dc.language.isoeng
dc.page.final1143
dc.page.initial1132
dc.publisherElsevier
dc.relation.projectIDPPQ2003-03299
dc.relation.projectIDMAT 2004-00825
dc.rights.accessRightsrestricted access
dc.subject.cdu536
dc.subject.keywordGas Permeability
dc.subject.keywordDiffusion
dc.subject.keywordComposite Membrane
dc.subject.keywordPolypropylene
dc.subject.ucmTermodinámica
dc.subject.unesco2213 Termodinámica
dc.titleGas transport properties of polypropylene/clay composite membranes
dc.typejournal article
dc.volume.number43
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