Film formation from polymer solution using inkjet printing method

Masayuki Kaneda, Hirotaka Ishizuka, Yousuke Sakai, Jun Fukai, Shigekazu Yasutake, Atsushi Takahara

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

The factors determining the thin-film shape from an evaporating polymer solution droplet are experimentally studied. The polystyrenelxylene droplets, whose diameter is controlled in the range of 30-100 μm with the mass fraction of 0.5-3.0 wt % are ejected onto a lyophobic substrate. The droplet on the substrate results in an axisymmetric or nonaxisymmetric ring-like/dot-like film. The film configuration is dominated by the evaporation rate and the film symmetry is governed by the local pinning time at the periphery. Various relationships are also found among the evaporation rate, pinning time, wetting diameter, and average solute concentration of which the nondimensionalization pronounces explicit relationships and similarity.

Original languageEnglish
Pages (from-to)1100-1108
Number of pages9
JournalAIChE Journal
Volume53
Issue number5
DOIs
Publication statusPublished - May 1 2007

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Environmental Engineering
  • Chemical Engineering(all)

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