Počet záznamů: 1
Electrospinning of a copolymer PVDF-co-HFP solved in DMF/ acetone – explicit relations among viscosity, polymer concentration, DMF/acetone ratio and mean nanofiber diameter
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SYSNO ASEP 0546052 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Electrospinning of a copolymer PVDF-co-HFP solved in DMF/ acetone – explicit relations among viscosity, polymer concentration, DMF/acetone ratio and mean nanofiber diameter Tvůrce(i) Filip, Petr (UH-J) ORCID, RID, SAI
Zelenková, Jana (UH-J) SAI, ORCID, RID
Peer, Petra (UH-J) ORCID, SAI, RIDČíslo článku 3418 Zdroj.dok. Polymers. - : MDPI
Roč. 13, č. 19 (2021)Poč.str. 12 s. Forma vydání Online - E Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova electrospinning ; nanofibrous web ; poly(vinylidene-co-hexafluoropropylene) ; N,N´-dimethylformamide ; acetone ; master curve Vědní obor RIV BK - Mechanika tekutin Obor OECD Fluids and plasma physics (including surface physics) CEP LTC19034 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Open access Institucionální podpora UH-J - RVO:67985874 UT WOS 000709088400001 EID SCOPUS 85116685571 DOI 10.3390/polym13193418 Anotace The process of electrospinning polymer solutions depends on many entry parameters, with each having a significant impact on the overall process and where complexity prevents the expression of their interplay. However, under the assumption that most parameters are fixed, it is possible to evaluate the mutual relations between pairs or triples of the chosen parameters. In this case, the experiments were carried out with a copolymer poly(vinylidene-co-hexafluoropropylene) solved in mixed N,N’-dimethylformamide (DMF)/acetone solvent for eight polymer concentrations (8, 10, 12, 15, 18, 21, 24, and 27 wt.%) and five DMF/acetone ratios (1/0, 4/1, 2/1, 1/1, 1/2). Processing of the obtained data (viscosity, mean nanofiber diameter) aimed to determine algebraic expressions relating both to viscosity and a mean nanofiber diameter with polymer concentration, as well as DMF/acetone ratio. Moreover, a master curve relating these parameters with no fitting factors was proposed continuously covering a sufficiently broad range of concentration as well as DMF/acetone ratio. A comparison of algebraic evaluation with the experimental data seems to be very good (the mean deviation for viscosity was about 2%, while, for a mean nanofiber diameter was slightly less than 10%). Pracoviště Ústav pro hydrodynamiku Kontakt Soňa Hnilicová, hnilicova@ih.cas.cz, Tel.: 233 109 003 Rok sběru 2022 Elektronická adresa https://www.mdpi.com/2073-4360/13/19/3418
Počet záznamů: 1