Application of green solvents as a replacement of toxic dimethylformamide in the polylactic acid electrospinning process

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28610%2F25%3A63594780" target="_blank" >RIV/70883521:28610/25:63594780 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2214993725001733" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2214993725001733</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.susmat.2025.e01405" target="_blank" >10.1016/j.susmat.2025.e01405</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Application of green solvents as a replacement of toxic dimethylformamide in the polylactic acid electrospinning process

Popis výsledku v původním jazyce

Nanofibres based on polylactic acid (PLA) have a wide range of applications, including air filtration. They are prepared by electrospinning using toxic solvents as dimethylformamide. This study focused on the use of green solvents to prepare electrospinnable solutions. It was found that a combination of solvents is necessary. A nozzle electrospinning technique was applied to produce PLA nanofibres from optimised dual (ethyl or methyl lactate with acetone) or ternary (cyclopentanone, acetone and ethyl or methyl lactate) solvent system. The prepared nanofibres were evaluated for morphology and quality of nanofibres (SEM), surface wettability (contact angle), filtration properties (automated filter tester) and pore size and distribution (porometry). Potential changes in the chemical composition and the presence of residual solvent were investigated by FTIR, TGA and headspace analysis. It was found that green solvents can substitute dimethylformamide; especially combination of cyclopentanone/ethyl lactate/acetone provides air filtration properties comparable to dimethylformamide/acetonebased systems.

Název v anglickém jazyce

Application of green solvents as a replacement of toxic dimethylformamide in the polylactic acid electrospinning process

Popis výsledku anglicky

Nanofibres based on polylactic acid (PLA) have a wide range of applications, including air filtration. They are prepared by electrospinning using toxic solvents as dimethylformamide. This study focused on the use of green solvents to prepare electrospinnable solutions. It was found that a combination of solvents is necessary. A nozzle electrospinning technique was applied to produce PLA nanofibres from optimised dual (ethyl or methyl lactate with acetone) or ternary (cyclopentanone, acetone and ethyl or methyl lactate) solvent system. The prepared nanofibres were evaluated for morphology and quality of nanofibres (SEM), surface wettability (contact angle), filtration properties (automated filter tester) and pore size and distribution (porometry). Potential changes in the chemical composition and the presence of residual solvent were investigated by FTIR, TGA and headspace analysis. It was found that green solvents can substitute dimethylformamide; especially combination of cyclopentanone/ethyl lactate/acetone provides air filtration properties comparable to dimethylformamide/acetonebased systems.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

<a href="/cs/project/EH23_021%2F0009004" target="_blank" >EH23_021/0009004: Rozvoj aplikačního potenciálu v oblasti polymerních materiálů v kontextu naplňování principů cirkulární ekonomiky (POCEK)</a><br>

Návaznosti

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

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Sustainable Materials and Technologies

ISSN

2214-9937

e-ISSN

—

Svazek periodika

44

Číslo periodika v rámci svazku

Neuveden

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

14

Strana od-do

nestránkováno

Kód UT WoS článku

001483025300001

EID výsledku v databázi Scopus

2-s2.0-105003378738