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المؤلفPonnamma D.
المؤلفNair S.S.
المؤلفParangusan H.
المؤلفHassan M.K.
المؤلفAdham S.
المؤلفKarim A.
المؤلفAl-Maadeed M.A.A.
تاريخ الإتاحة2022-02-27T09:30:35Z
تاريخ النشر2020
اسم المنشورPolymers
المصدرScopus
المعرّفhttp://dx.doi.org/10.3390/polym12010004
معرّف المصادر الموحدhttp://hdl.handle.net/10576/27462
الملخصIn this work, stable hydrophobic nanocomposites are made from electrospun fibers of polystyrene (PS) containing a hybrid filler combination of (i) hexagonal boron nitride (hBN) and (ii) cobalt oxide (Co3O4) nanomaterials. Good synergistic interaction is observed between the nanomaterials, since the growth of Co3O4 was carried out in presence of white graphene nanosheets. Filler synergy modifies the PS surfaces, by enhancing the filler-polymer interfacial interactions and provides good tensile strength. The hydrophobic films are gamma irradiated to improve crosslinking within the polymer nanocomposites. Since gamma irradiation enhances the surface roughness, its hydrophobicity/oleophilicity increases much and the final nanofibers show good oil-water separation efficiency. The nanofibers act as sponge clothing to skim the oil from a mixture of oil and water. Durability of the fibers in hot water and in presence of ultrasonic waves is also tested and good response is achieved. Contact angle studies are performed to investigate the surface properties and to check the influence of gamma irradiation on the surface wettability. The gamma-irradiated PS nanocomposite fiber shows a contact angle of 152° ± 2° compared to the 140° ± 1° of the neat PS fiber, evidencing the superhydrophobicity. Both the effects of crosslink density enhancement and hybrid filler distribution make the composite fibers stronger in oil absorption application even at higher operation temperatures. The fibers are reported to be robust and durable, in addition.
راعي المشروعFunding: This publication is made possible by NPRP grant 10-0127-170269 from the Qatar National Research Fund (a member of Qatar Foundation). The statements made herein are solely the responsibility of the authors. The publication of this article was funded by the Qatar National Library.
اللغةen
الناشرMDPI AG
الموضوعAbsorption
Contact angle
Crosslinking
Durability
Electrospinning
Fibers
Filled polymers
Fillers
Gamma rays
Graphene
Hydrophobicity
III-V semiconductors
Irradiation
Nanocomposite films
Nanocomposites
Nanofibers
Polymer films
Polystyrenes
Surface roughness
Tensile strength
Ultrasonic testing
Cross-link densities
Hexagonal boron nitride (h-BN)
Interfacial interaction
Oil absorbent
Operation temperature
Polymer nanocomposite
Polystyrene nanofibers
Synergistic interaction
Cobalt compounds
العنوانWhite graphene-cobalt oxide hybrid filler reinforced polystyrene nanofibers for selective oil absorption
النوعArticle
رقم العدد1
رقم المجلد12
dc.accessType Open Access


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