Suppressing the coffee-ring effect of colloidal droplets by dispersed cellulose nanofibers

Yuto Ooi, Itsuo Hanasaki, Daiki Mizumura, yu Matsuda

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

We report that the addition of a small amount of cellulose nanofibers (CNFs) into an aqueous dispersion of colloidal particles suppresses the coffee-ring effect when the dispersion dries on a solid substrate, as revealed by the computational analysis of experimental time-series images and by particle image velocimetry. The addition of CNFs is much more effective than the increase of colloidal particle concentration at the same weight percentage; it is also more environment friendly than the use of typical molecular surfactants. This finding is promising for the fabrication of metamaterials from colloidal dispersions and for ink printing in electronics, where CNFs can also serve as a substrate for flexible devices. (Figure presented).

Original languageEnglish
Pages (from-to)316-324
Number of pages9
JournalScience and Technology of Advanced Materials
Volume18
Issue number1
DOIs
Publication statusPublished - 2017 Jan 1
Externally publishedYes

    Fingerprint

Keywords

  • cellulose
  • Coffee ring
  • colloid
  • drop
  • film
  • ink
  • mesoscale
  • nanofiber
  • particle
  • soft matter

ASJC Scopus subject areas

  • Materials Science(all)

Cite this