STM Journals Peer-reviewed research from Consortium e-Learning Network

Journal of Thin Films, Coating Science Technology & Application

Thin fluoropolymer coating on cotton textile to achieve hydrophobicity

  1. Sourav Mondal
  2. Sukanta Pal
  3. Ananya Chaudhuri
  4. Jayanta Maity

Abstract

We report a simple novel procedure to prepare hydrophobic cotton textiles by admicellar polymerization on the cotton surface. By in situ introducing fluoropolymer on cotton fibers to generate a dual-size surface roughness, followed by hydrophobization with a little amount of fluoromonomer Octafluoropentamethyl methacrylate (OFPM) with short time, normally hydrophilic cotton has been easily turned in to hydrophobic. Hydrophobic cotton textile exhibits a static water contact angle of 135° for a 10 µL droplet. When an octa fluoroalkyl chain is introduced to the cotton surface, the originally smooth surface changed immediately to rough a surface by which is the key factor for hydrophobicity like lotus leaves.

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