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Properties of Polymer Solutions Intended for Formation of Hollow Fibers Membranes by Inversion Phases Process

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F28676092%3A_____%2F18%3AN0000013" target="_blank" >RIV/28676092:_____/18:N0000013 - isvavai.cz</a>

  • Result on the web

    <a href="http://dx.doi.org/10.3933/ApplRheol-28-65935" target="_blank" >http://dx.doi.org/10.3933/ApplRheol-28-65935</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.3933/ApplRheol-28-65935" target="_blank" >10.3933/ApplRheol-28-65935</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Properties of Polymer Solutions Intended for Formation of Hollow Fibers Membranes by Inversion Phases Process

  • Original language description

    The gas separation process by asymmetric polymeric membranes has received much attention during the last decades because of its more energy efficiency than other conventional separation processes. Hollow fibers are the most favored membrane geometry owing to their high surface area per unit volume of membrane module. One of the key elements determining the potential and applications of asymmetric hollow-fiber membranes are the structural properties mainly including pore size, pore distribution, selective layer thickness, molecular orientation and defectiveness. These elements can generally vary depending on conditions during dry-jet wet-spinning process. Flow conditions in spinneret during extrusion are known to affect the dense-layer of hollow fibers and possibly to enhance separation performance of hollow fibers. The aim of this study was to determine flow conditions of polyetherimide/N-Methyl-2-pyrrolidone solvent/ethanol non-solvent spinning solutions flowing through concentric annulus of spinneret during hollow fiber spinning process. The rotational rheometer was used to characterize rheological properties of spinning solutions. Newtonian behavior of the spinning solutions with arbitrary composition was shown. The effect of spinning solution and spinneret dimension on flow profile in spinneret was investigated. The Newtonian character of the spinning solutions caused constant velocity profile resp. shear rate profile regardless of dope composition when flowing through a spinneret with some flowrate. It has been shown the spinneret dimensions and geometry play a crucial role in controlling the shear flow in spinneret. The phase behavior of the PEI/NMP/EtOH dope system at a temperature of the hollow fiber spinning process (40 °C) was studied.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20506 - Coating and films

Result continuities

  • Project

    <a href="/en/project/FV10061" target="_blank" >FV10061: Development of membranes and membrane modules for gas separation</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2018

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Applied Rheology

  • ISSN

    1430-6395

  • e-ISSN

    1617-8106

  • Volume of the periodical

    28

  • Issue of the periodical within the volume

    6

  • Country of publishing house

    CH - SWITZERLAND

  • Number of pages

    7

  • Pages from-to

    65935

  • UT code for WoS article

    000453672500005

  • EID of the result in the Scopus database

    2-s2.0-85057988193