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Trends in Textile Engineering & Fashion Technology

The Effect of Molecular Weight of Chitosan Polymer on the Production of Nanofibers by Electrospinning

  • Open or CloseNiloofar Rafizadeh Zaeem1* and Kianoosh Karimi2

    1Department of Polymer Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran

    2Department of Textile Engineering, Science and Research Branch, Islamic Azad University, Islamic Azad University, Tehran, Iran

    *Corresponding author:Niloofar Rafizadeh Zaeem, Department of Polymer Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran

Submission: vPublished: October 27, 2022

DOI: 10.31031/TTEFT.2022.07.000663

ISSN: 2578-0271
Volume7 Issue3


Chitosan is a natural origin polymer and is one of the derivatives of chitin; Chitosan is the most abundant polysaccharide in the world after cellulose. Chitosan has outstanding properties such as biodegradability, abundance, antibacterial and antifungal effects and reactivity, which leads to many applications such as: hygiene-health, agriculture, food production, cosmetics, water purification and waste treatment. Bigger contact surface of a polymer causes more interaction, therefore a layer containing nanofibers will provide much better contact surface. In this study, average molecular weight and high molecular weight of chitosan nanofibers were produced. In both cases, a mixture of TFA/DCM solvents with the ratio of (70/30) respectively was employed. viscosity of mentioned solvent was investigated, then the solutions of chitosan and solvent mixture were electrospun. Morphology of obtaining fibers was studied by SEM; also, the physical structure was investigated by XRD. After that, recovered moisture of nanofibers was investigated. Finally heavy metal (Cu (II)) adsorption behavior of nanofibers was compared using an atomic adsorption spectrometer. The optimal spinning solution contained 7wt% chitosan. Average diameter of high molecular weight chitosan fibers was 128nm. According to the results, high molecular weight chitosan nanofibers absorbed more Cu (II) ions compering to average molecular weight chitosan nanofibers.

Keywords:Antibacterial; Agriculture; Food production; Cosmetics; Spinning; Nanofibers

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