Microfluidic elaboration of polymer microfibers from miscible phases: Effect of operating and material parameters on fiber diameter
| Autor: | Wasif Razzaq, Christophe A. Serra, Leandro Jacomine, Delphine Chan-Seng |
|---|---|
| Přispěvatelé: | Institut Charles Sadron (ICS), Université de Strasbourg (UNISTRA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Matériaux et Nanosciences Grand-Est (MNGE), Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), National Textile University, Chan-Seng, Delphine |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
capillary number
microfiber diameter [CHIM.POLY] Chemical Sciences/Polymers [CHIM.GENI]Chemical Sciences/Chemical engineering [CHIM.POLY]Chemical Sciences/Polymers [CHIM.GENI] Chemical Sciences/Chemical engineering General Chemical Engineering photopolymerization microfluidics General Chemistry Chimie/Génie chimique |
| Zdroj: | Journal of the Taiwan Institute of Chemical Engineers Journal of the Taiwan Institute of Chemical Engineers, 2022, 132, pp.104215. ⟨10.1016/j.jtice.2022.104215⟩ |
| ISSN: | 1876-1070 |
| DOI: | 10.1016/j.jtice.2022.104215⟩ |
| Popis: | International audience; Background: fiber diameter is one of the most important morphological parameters which drives the applications of microfibers. This creates a need for the development of processes capable of producing a large variety of microfibers with a given diameter. To this regards, microfluidic spinning has recently emerged as an outstanding and simple technique for the production of micro- and nanofibers with controllable size and morphology.Methods: herein, microfibers were produced from (macro)monomers or prepolymers (core phase) by in situ photoirradiation using a capillary-based microfluidic device and a miscible sheath phase of various viscosity. The effects of the flow rate of both phases as well as the viscosity of the sheath fluid, the capillary dimensions and the monomer volume fraction in the core phase were thoroughly studied.Significant findings: by calculating the capillary number ratio from the ratios of sheath to core flow rate and viscosity, an empirical relationship which perfectly predicts the microfiber diameter as a function of monomer volume fraction, the capillary number ratio and capillary inner diameter but independent of its outer diameter is extracted. This result paves the way to the continuous-flow production of microfibers with well-controlled morphological characteristics |
| Databáze: | OpenAIRE |
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