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Fluoroalkylation of the Surface of Hydrophilic Polyurethane Breathable Membrane

  • Textile Coloration and Finishing
  • Abbr : Text. Color. and Finish.
  • 2013, 25(1), pp.30-36
  • Publisher : The Korean Society Of Dyers And Finishers
  • Research Area : Engineering > Fiber Engineering > Dyeing Engineering

황지현 1 Namsik Yoon 1 오경석 2

1경북대학교
2(주)빅스

Accredited

ABSTRACT

Swelling and subsequent deformation of membranes by water wetting are regarded as a prime drawback of hydrophilic polyurethane breathable film. Fluoroalkylated surface was prepared by reacting the film with hexamethylene diisocyanate(HDI) and 2-perfluorohexyl ethanol. IR spectra and XPS results showed that the fluoroalkyl group was successfully introduced to the film surface with hexamethylene linkage. Water contact angle was increased from 68.7° up to 144.2° with the degree of fluoroalkylation. Decrease in water-vapor permeability was minimized even for the film of highest fluoroalkylation.

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