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http://dx.doi.org/10.15433/ksmb.2019.11.2.036

Mechanical Reinforcement of Electrospun Poly(L-lactic acid)(PLLA) Nanofibers with Chitin  

Moon, Hyunwoo (Division of Environmental Science and Engineering, Pohang University of Science and Technology (POSTECH))
Choy, Seunghwan (Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology (POSTECH))
Hwang, Dong Soo (Division of Environmental Science and Engineering and Division of Integrative Biosciences and Biotechnology, Pohang University of Science and Technology (POSTECH))
Publication Information
Journal of Marine Bioscience and Biotechnology / v.11, no.2, 2019 , pp. 36-41 More about this Journal
Abstract
This study was conducted to analyze the difference in mechanically improved properties by distinguishing α-chitin and β-chitin for Poly(L-lactic acid)(PLLA). First, dissolution of chitins was established by mixing polar solvents hexafluoroisopropanol (HFIP) and trifluoroacetic acid (TFA) in appropriate proportions. Under these conditions, the dissolved chitin was used for electrospinning with other polymers. The electrospun nanofibers of the PLLA and chitins were successfully produced. Compared to the pristine state, when chitin was added to PLLA, the tensile strength increased 1.41 times (α-chitin), by 1.61 times (β- chitin), respectively. Based on this, it was confirmed that α- and β- chitin could be strategically used for different polymers. The results also suggest that chitin can be applied to various fields as good reinforcing material as well as electrospinning.
Keywords
chitin; Poly(L-lactic acid)(PLLA); electrospinning; mechanical property;
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