Favorable 3D-network formation of chitin nanofibers dispersed in water prepared using aqueous counter collision

Ryota Kose, Tetsuo Kondo

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

In this study, chitin nanofibers were at first successfully prepared using aqueous counter collision (= ACC) method. Dispersion states of the chitin nanofibers in water were compared with aqueous dispersion of cellulose nanofibers in dynamic viscoelastic properties. Morphology of the chitin nanofibers was observed by transmission electron microscopy and polarizing light microscopy. As a result, the ACC treatment provided aqueous dispersion of chitin nanofibers having width of 10-20 nm, and repetition of the treatment allowed a homogeneous aqueous dispersion of the similar sized nanofibers, instead of further pulverization, from the intermediately treated mixture containing different scaled chitin fibers co-existed. The homogeneous dispersion containing chitin nanofibers exhibited much higher dynamic storage and loss moduli when compared with an aqueous cellulose nanofiber system. The dynamic storage modulus of the chitin dispersion tended to increase with increase in the amount of such homogeneous nanofibers, differing from the case of nano-size effects found in the cellulose system that was oppositely decreased. This indicated that the chitin nanofibers dispersed in water were likely to engage a more favorable network.

Original languageEnglish
Pages (from-to)91-95
Number of pages5
JournalJournal of Fiber Science and Technology
Volume67
Issue number4
DOIs
Publication statusPublished - Jan 1 2011

All Science Journal Classification (ASJC) codes

  • Chemical Engineering (miscellaneous)
  • Materials Science (miscellaneous)
  • Polymers and Plastics
  • Industrial and Manufacturing Engineering

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