Evaluation of Chemical and Physical Properties of Biodegradable Nanofibrous Membranes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24620%2F19%3A00007638" target="_blank" >RIV/46747885:24620/19:00007638 - isvavai.cz</a>

Výsledek na webu

<a href="http://nart.tul.cz" target="_blank" >http://nart.tul.cz</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Evaluation of Chemical and Physical Properties of Biodegradable Nanofibrous Membranes

Popis výsledku v původním jazyce

There is a growing interest in utilizing biomass and using biomaterials to produce fibrous structures with tailored functionalities. The present study reports on using electrospinning to produce nanofiber membranes based on homogenous polymeric blends of gum Arabic (GA) and poly vinyl alcohol (PVA). The produced interconnected membranes were crosslinked via heat and plasma treatments. Samples were analyzed for their chemical and physical performance using Fourier-transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), and load-elongation testing. FTIR spectra indicate the crosslinking of GA and PVA through esterification during the heat treatment, and through graft polymerization with methyl groups after methane plasma treatment. An increase in the modulus of elasticity from 85 MPa to 148 MPa is observed in the longitudinal direction (parallel to electrospun nanofibers) compared with the transverse direction. Moreover, well dispersed nanoparticles in the spinning solution tend to increase the elasticity from 41 MPa to 148 MPa while the agglomeration of these nanoparticles causes a decrease to the mechanical properties of the nanofibers. The produced biodegradable electrospun membranes have multiple potential applications in many fields, especially for medical and antibacterial uses.

Název v anglickém jazyce

Evaluation of Chemical and Physical Properties of Biodegradable Nanofibrous Membranes

Popis výsledku anglicky

There is a growing interest in utilizing biomass and using biomaterials to produce fibrous structures with tailored functionalities. The present study reports on using electrospinning to produce nanofiber membranes based on homogenous polymeric blends of gum Arabic (GA) and poly vinyl alcohol (PVA). The produced interconnected membranes were crosslinked via heat and plasma treatments. Samples were analyzed for their chemical and physical performance using Fourier-transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), and load-elongation testing. FTIR spectra indicate the crosslinking of GA and PVA through esterification during the heat treatment, and through graft polymerization with methyl groups after methane plasma treatment. An increase in the modulus of elasticity from 85 MPa to 148 MPa is observed in the longitudinal direction (parallel to electrospun nanofibers) compared with the transverse direction. Moreover, well dispersed nanoparticles in the spinning solution tend to increase the elasticity from 41 MPa to 148 MPa while the agglomeration of these nanoparticles causes a decrease to the mechanical properties of the nanofibers. The produced biodegradable electrospun membranes have multiple potential applications in many fields, especially for medical and antibacterial uses.

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

<a href="/cs/project/LTAUSA18135" target="_blank" >LTAUSA18135: Mikrostrukturální zobrazování jako nástroj pro modelování vlákenných materiálů (μ-CT GOALS)</a><br>

Návaznosti

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

Rok uplatnění

2019

Kód důvěrnosti údajů

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