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KMID : 0525720190240010050
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Journal of Chitin and Chitosan
2019 Volume.24 No. 1 p.50 ~ p.54
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Flexible and Transparent Composite Film Based on Nanofibrillated Chitin Using Aqueous Counter Collision
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Hwang Hyun-Bin
Kim Joong-Kwon
Jin Jung-Ho
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Abstract
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Recently, biopolymers have attracted a great deal of attention as a substitute for synthetic polymer due to growing concerns on the environment. In particular, chitin, the 2 nd most abundant biopolymer on earth after cellulose, has garnered much interest as a biodegradable material building-blocks for various functional materials. Chitin is non-toxic, biodegradable, physiologically inert, and yet mechanically robust. In this study, we propose a method of preparing chitin nanofibers as an aqueous suspension using an aqueous counter collision (ACC)-based nanofibrillation technique. This technique allows the disintegration of chitin raw materials into fine (~ few tens of nm) nanofiber using only a pair of high-pressure water jets, without the need for any chemical modifications. In addition, we produced chitin nanofiber sheets, and fabricated flexible transparent composite films by impregnating the chitin nanofiber sheets with a typical UV-curable organic resin. The chitin nanofiber-based transparent composite film exhibited improved mechanical properties and transparency
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KEYWORD
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Chitin nanofiber, High-pressure water jets, Aqueous counter collision (ACC), Transparent composite film, UV curable resin, Green electronics
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