Reinforced fluorinated copolymer and polyurethane electrospun layered nanofiber-based membranes for effective model water dead-end microfiltration

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F25%3A63595758" target="_blank" >RIV/70883521:28610/25:63595758 - isvavai.cz</a>

Result on the web

<a href="https://onlinelibrary.wiley.com/doi/10.1002/pat.70203" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/pat.70203</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/pat.70203" target="_blank" >10.1002/pat.70203</a>

Result language

angličtina

Original language name

Reinforced fluorinated copolymer and polyurethane electrospun layered nanofiber-based membranes for effective model water dead-end microfiltration

Original language description

The research presented herein describes the preparation of electrospun homogeneous nanofibrous structures with customized morphology and properties, as well as textile support for necessary reinforcement for microfiltration applications. Findings report membranes comprising a polyurethane or fluorinated copolymer nanofibrous layer and polyethylene terephthalate nonwoven textile as support were evaluated. The investigation encompassed various constructions of materials, which include the influence of nanostructure morphology, the process of membrane cleaning by backwashing, and factors affecting flux, filtration efficacy, and working life. Application of membrane support made from polyethylene terephthalate with a large distribution of polymer chain provides a sufficiently strong connection with a layer of nanofibers with minimum penetration into the nanostructure involved in flux improvement. It was discerned that nanostructures with a morphology of six layers from thick (fiber diameter ~ 500 nm) and thin (fiber diameter ~ 180 nm) nanofibers with mean pore size 0.67 μm in comparison with membranes prepared from thin nanofibers only (mean pore size 0.26 μm) exhibited improved flux (17 times higher after 150 min of filtration process). In contrast, the filtration efficacy of both membranes for filtering submicron particles remained stable and highly efficient. It also proved to smooth out the surfaces of the novel membranes, which simplifies the removal of caked-up debris. Cleaning the filter by backwashing renewed the efficacy of the developed membranes for filtration and extended their working life. Finally, repeatedly backwashing the thin nanofiber layer membrane raised the water flux measured as 230 L m−2 h−1, that is, six times higher than without backwashing.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10404 - Polymer science

Project

<a href="/en/project/EH23_021%2F0009004" target="_blank" >EH23_021/0009004: Application potential development in the field of polymer materials in the context of circular economy compliance (POCEK)</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

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

Name of the periodical

Polymers for Advanced Technologies

ISSN

1042-7147

e-ISSN

—

Volume of the periodical

36

Issue of the periodical within the volume

5

Country of publishing house

GB - UNITED KINGDOM

Number of pages

14

Pages from-to

nestránkováno

UT code for WoS article

001506565100001

EID of the result in the Scopus database

2-s2.0-105004820431