Humidity-induced secondary phase separation in a multizone drier

Masato Yamamura, Takatoshi Mikuriya, Toshihisa Kajiwara, Kitaro Adachi

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


We demonstrated that an increase in the gas humidity in a two-zone drier enhanced the formation of polymer droplets via a secondary phase separation. Optical microscopy observations revealed that, with an increase in humidity, the separating polymers contacted and coalesced with the neighboring droplets to form characteristic double phase structures superposed in the films. We also demonstrated that the morphology transition was induced by the variation in the phase equilibrium thermodynamics rather than the variation in the solvent drying rate, which was independent of the humidity.

Original languageEnglish
Pages (from-to)4409-4413
Number of pages5
JournalIndustrial and Engineering Chemistry Research
Issue number17
Publication statusPublished - Aug 21 2002
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering


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