Electrospinning and stabilization of chitosan nanofiber mats

17th World Textile Conference AUTEX 2017 - Shaping the Future of Textiles

Grimmelsmann, N.^1 ; Grothe, T.^1 ; Homburg, S.V.^1 ; Ehrmann, A.^1

Bielefeld University of Applied Sciences, Faculty of Engineering and Mathematics, Interaktion 1, Bielefeld

33619, Germany^1

关键词: Acidic solutions;    Chitosan nanofibers;    Fibre structure;    Filter mediums;    Inner surfaces;    Medical products;    Neutral water;    Physical and chemical properties;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/254/10/102006/pdf
DOI  :  10.1088/1757-899X/254/10/102006

来源: IOP

【 摘 要 】

Chitosan is of special interest for biotechnological and medical applications due to its antibacterial, antifungal and other intrinsic physical and chemical properties. The biopolymer can, e.g., be used for biotechnological purposes, as a filter medium, in medical products, etc. In all these applications, the inner surface should be maximized to increase the contact area with the filtered medium etc. and thus the chitosan's efficacy. Chitosan dissolves in acidic solutions, opposite to neutral water. Electrospinning is possible, e.g., by co-spinning with PEO (poly(ethylene oxide)). Tests with different chitosan:PEO ratios revealed that higher PEO fractions resulted in better spinnability and more regular fibre mats, but make stabilization of the fibre structure more challenging.