期刊
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
卷 190, 期 -, 页码 601-606出版社
ELSEVIER
DOI: 10.1016/j.ijbiomac.2021.09.015
关键词
Carboxymethyl starch; Polyvinyl-alcohol; Nanofibers
A green approach for the preparation of starch-based composite nanofibers using electrospinning was developed. The addition of co-blending polymer PVA was attempted to improve the CMS solution spinnability. The study successfully obtained smooth, continuous, and defect-free nanofibers from the blend of CMS/PVA weight ratios of 10:90 to 80:20.
A green approach for the preparation of starch-based composite nanofibers using electrospinning was developed. The water-soluble sodium carboxymethyl starch (CMS) with DS 0.31 was prepared. The addition of co-blending polymer polyvinyl-alcohol (PVA) was attempted to improve the CMS solution spinnability, which blends from aqueous solution were prepared at different CMS/PVA weight ratios. The solution parameters including viscosity, surface tension and conductivity were measured and the morphologies of nanofibers were observed by SEM. Smooth, continuous, and defect-free nanofibers were successfully obtained range from the blend of CMS/ PVA weight ratios of 10:90 to 80:20. Diameter distribution diagrams suggested that the diameter of the nanofibers reduced with the concentration of CMS increasing. This is the first report that the thin nanofiber (135.29 nm) with bead-free was obtained at the maximal CMS content of 50.0 wt% in the CMS/PVA blend. This study provided a green approach to produce starch-based nano-scale fibers.
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