Influence of surfactant on microstructure and properties of wet coagulation polyurethane film

Yue Min Zeng, Hao Jing Yan, Jinlian Hu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

Abstract

Polyurethane asymmetric membranes were prepared by wet coagulation process from the PU/DMF/Span-80/OT-70 solutions, and the morphological features of cross section of the membranes were obtained by scanning electron microscopy. The influences of the non-ionic hydrophobic surfactant Span-80 and the anionic hydrophilic surfactant OT-70 on the morphology of the membranes, the mechanical properties and the water vapor permeability were studied. The formation mechanism of the membrane microstructure from different PU/DMF/surfactant systems was discussed.
Original languageEnglish
Pages (from-to)15-18
Number of pages4
JournalJournal of Dong Hua University (English Edition)
Volume19
Issue number2
Publication statusPublished - 1 Jun 2002

Keywords

  • Macrovoid
  • Membrane formation
  • Polyurethane
  • Spinodal decomposition

ASJC Scopus subject areas

  • Polymers and Plastics
  • Industrial and Manufacturing Engineering

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