Effect of clay content on morphology and processability of electrospun keratin/poly(lactic acid) nanofiber

International Journal of Biological Macromolecules
Siriorn Isarankura Na AyutthayaJatuphorn Wootthikanokkhan

Abstract

This research work has concerned the development of volatile organic compounds (VOCs) removal filters from biomaterials, based on keratin extracted from chicken feather waste and poly(lactic acid) (PLA) (50/50%w/w) blend. Clay (Na-montmorillonite) was also added to the blend solution prior to carrying out an electro-spinning process. The aim of this study was to investigate the effect of clay content on viscosity, conductivity, and morphology of the electrospun fibers. Scanning electron micrographs showed that smooth and bead-free fibers were obtained when clay content used was below 2 pph. XRD patterns of the electrospun fibers indicated that the clay was intercalated and exfoliated within the polymers matrix. Percentage crystallinity of keratin in the blend increased after adding the clay, as evidenced from FTIR spectra and DSC thermograms. Transmission electron micrographs revealed a kind of core-shell structure with clay being predominately resided within the keratin rich shell and at the interfacial region. Filtration performance of the electrospun keratin/PLA fibers, described in terms of pressure drop and its capability of removing methylene blue, were also explored. Overall, our results demonstrated that it was possible...Continue Reading

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Citations

Dec 19, 2019·Polymers·Wenjie ChenGuoqiang Yin
Feb 17, 2017·Applied Biochemistry and Biotechnology·Arunrat Khamhaengpol, Sineenat Siri

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