Superhydrophobic Paper from Nanostructured Fluorinated Cellulose Esters

Pegah Khanjani, Alistair W.T. King, Gabriel J. Partl, Leena Sisko Johansson, Mauri A. Kostiainen, Robin H.A. Ras

Research output: Contribution to journalArticleScientificpeer-review

53 Citations (Scopus)

Abstract

The development of economically and ecologically viable strategies for superhydrophobization offers a vast variety of interesting applications in self-cleaning surfaces. Examples include packaging materials, textiles, outdoor clothing, and microfluidic devices. In this work, we produced superhydrophobic paper by spin-coating a dispersion of nanostructured fluorinated cellulose esters. Modification of cellulose nanocrystals was accomplished using 2H,2H,3H,3H-perfluorononanoyl chloride and 2H,2H,3H,3H-perfluoroundecanoyl chloride, which are well-known for their ability to reduce surface energy. A stable dispersion of nanospherical fluorinated cellulose ester was obtained by using the nanoprecipitation technique. The hydrophobized fluorinated cellulose esters were characterized by both solid- and liquid-state nuclear magnetic resonance, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and contact angle measurements. Further, we investigated the size, shape, and structure morphology of nanostructured fluorinated cellulose esters by dynamic light scattering, scanning electron microscopy, and X-ray diffraction measurements.

Original languageEnglish
Pages (from-to)11280-11288
Number of pages9
JournalACS Applied Materials and Interfaces
Volume10
Issue number13
DOIs
Publication statusPublished - 4 Apr 2018
MoE publication typeA1 Journal article-refereed

Keywords

  • fluorinated cellulose ester
  • nanoprecipitation
  • paper
  • spin-coating
  • water-repellent

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