Poly(styrene-b-isobutylene-b-styrene) Triblock Copolymer Fiber Generation with Centrifugal Spinning, and its Potential Application in Oil Collection

Kántor, József; Gergely, Attila; Farmos, Rudolf; Hodgyai, Norbert

doi:10.1109/cinti-macro57952.2022.10029628

Cited by 2 publications

(3 citation statements)

References 19 publications

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“…When it comes to WCA, not only do the properties of the material have an influence but also any occurrence of micro-, or nanostructures on the surface of the specimen These phenomena were studied in detail, and the Wenzel and Cassie-Baxter models are used to explain them [31,32]. Previous measurements showed that the WCA on a cas SIBS sheet is ~91° [27]. However, due to the possibility of the formation of air pockets on the surface of the fiber mat, the WCA became much higher than in the case of the bulk material, entering the highly hydrophobic range.…”

Section: Contact Angle Measurementmentioning

confidence: 99%

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Optimization of Oil Sorbent Thermoplastic Elastomer Microfiber Production by Centrifugal Spinning

2023

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Fibrous structures are promising candidates for oil–water separation applications. In this study, we have produced poly(styrene-b-isobutylene-b-styrene) thermoplastic elastomeric fibers with the centrifugal spinning fiber production method. The optimal fiber production conditions were achieved when using a 25% w/w solution concentration in an 80/20 tetrahydrofuran/toluene (w/w) solvent system at 8000 rpm rotational speed. The produced fibers were bead-free and smooth-surfaced with a diameter of 3.68 µm. The produced fibers were highly hydrophobic and oleophilic, suggested by a water contact angle of 129° and the instantaneous absorption of the oil droplet. The oil absorption study showed fast absorption kinetics with 94% relative oil uptake after 1 min and a maximum of 16.5 g sunflower oil/g fiber. The results suggest that polyisobutylene-based thermoplastic elastomers could be promising alternatives in oil absorption applications.

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Section: Contact Angle Measurementmentioning

confidence: 99%

“…The fiber mat had a WCA of 146° [ 26 ]. Centrifugal spinning of SIBS at 4500–6300 rpm and a flow rate of 150 mL/h yielded fibers with average diameters of 4–5 μm [ 27 ].…”

Section: Introductionmentioning

confidence: 99%

Optimization of Oil Sorbent Thermoplastic Elastomer Microfiber Production by Centrifugal Spinning

2023

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“…Most importantly, it has been shown that the production rate of centrifugal spinning at a laboratory scale could be as high as 60 g/h per capillary, which is two to three orders of magnitude larger than in the case of the single needle electrospinning [ 26 , 27 ]. Furthermore, the electric conductivity of the used solution does not influence the fiber production process [ 28 ].…”

Section: Introductionmentioning

confidence: 99%

Optimization and Production of Aceclofenac-Loaded Microfiber Solid Dispersion by Centrifugal Spinning

Bitay,

Gergely,

Szabó

2023

Pharmaceutics

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Aceclofenac-loaded polyvinylpyrrolidone fiber-based amorphous solid dispersion was produced successfully by centrifugal spinning. The solution concentration and rotational speed were optimized to produce the fiber-based drug carrier system, with a determined production rate of 12.7 g/h dry solid fibers. The obtained fibers were bead-free and smooth-surfaced with an average diameter of 7.5 ± 2.5 μm. Gas chromatographic determinations revealed that ethanol, as a residual solvent, was well below the regulatory limit of 0.5%. Differential scanning calorimetric investigation and infrared spectroscopic measurements were used to track the physicochemical changes that intervene during fiber formation in the solid state. The results revealed that the rapid evaporation of the solvent was accompanied by a probable crystalline to amorphous transition of the active substance during centrifugal spinning. In vitro dissolution studies revealed an instantaneous disintegration of the fibrous structure and a rapid release of the active substance, with the microfibrous webs greatly outperforming the crystalline active substance, especially in the early time-points. This implies that centrifugal spinning offers a viable scale-up production process to prepare drug-loaded fiber-based solid dispersions.

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Poly(styrene-b-isobutylene-b-styrene) Triblock Copolymer Fiber Generation with Centrifugal Spinning, and its Potential Application in Oil Collection

Cited by 2 publications

References 19 publications

Optimization of Oil Sorbent Thermoplastic Elastomer Microfiber Production by Centrifugal Spinning

Optimization of Oil Sorbent Thermoplastic Elastomer Microfiber Production by Centrifugal Spinning

Optimization and Production of Aceclofenac-Loaded Microfiber Solid Dispersion by Centrifugal Spinning

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