Numerical simulation on electrostatic alignment control of cellulose nano-fibrils in flow

Hidemasa Takana, Mengfei Guo

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The alignment process of the cellulose nano-fibrils (CNFs) in an alternating electric field and elongational flow is numerically simulated for the fabrication of strong cellulose filaments. The order parameter of CNFs in the flow channel is evaluated by solving the Smoluchowski equation for the orientation distribution function of the CNFs. The results show that CNF alignment in the electric field is enhanced with applied voltage because the electrostatic torque is dominant over the Brownian rotation. An optimal fibril length is shown to exist for electrostatic alignment coupled with elongational flow effect.

Original languageEnglish
Article number205602
JournalNanotechnology
Volume31
Issue number20
DOIs
Publication statusPublished - 2020 May 15

Keywords

  • Alignment
  • Cellulose filament
  • Cellulose nano-fibril
  • Electrostatic alignment
  • Elongational flow
  • Numerical simulation

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

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