Study on the dynamics of chitosan/cotton fiber in an airflow around two rotating cylinders

Hui Fen Guo, Chenxiao Yang, Li Li

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1 Citation (Scopus)

Abstract

To predict chitosan/cotton yarn properties in ring spinning, a particle-level simulation method has been used to simulate the dynamics of the fibers with different initial positions in three-dimensional airflow around counter-rotating cylinders. The results show that the fibers near the cylinder end-face can leave two cylinders’ nip and move around the top cylinder, thus form fly waste. It is good to entangle other fibers as this gives the fiber greater bending energy. Compared with cotton fiber, the axial-direction deflections of the tail-ends of chitosan fibers near the cylinder center are much greater, while their bending energies are much lower, thus forming a wide triangle zone and reduced fiber–fiber cohesion force and yarn strength. To demonstrate the simulation results, a series of spinning experiments are completed, which tally with the predictions.

Original languageEnglish
Pages (from-to)2035-2043
Number of pages9
JournalTextile Research Journal
Volume88
Issue number18
DOIs
Publication statusPublished - 1 Sep 2018

Keywords

  • chitosan
  • cotton
  • fiber dynamics
  • rotating flow
  • spinning triangle

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Polymers and Plastics

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