Development of superhydrophobic fabrics by surface fluorination and formation of CNT-induced roughness

Authors

  • Myoung Hee Shim Seoul National University
  • Jooyoun Kim Kansas State University
  • Chung Hee Park Seoul National University

DOI:

https://doi.org/10.5755/j01.ms.21.1.5762

Keywords:

superhydrophobic, fabric, contact angle, shedding angle

Abstract

Superhydrophobictextile material having self-cleaning function was developed by employing carbon nanotubes (CNTs) and water-repellent agents.Hydrophobic fabrics were prepared on 100% polyester woven fabrics withvarious yarn diameters and yarn types. The wetting behavior of fabrics withdifferent treatments was compared for: siloxanerepellent, fluorocarbon repellent, and CNT added fluorocarbon repellent. Drawn textured yarn (DTY) fabrics exhibited higher contactangle (CA) than filament yarn fabrics due to the larger surface roughness contributed by the textured yarn. Fabrics treated with fluorocarbon presentedlarger CA and lower shedding angle than those treated with siloxane,because of the lower surface energy of fluorocarbon repellent. Specimens madeof 50 denier DTY and treated with CNT-Teflon AF® showed the mostsuperhydrophobic characteristics in the study, producing the static contactangle>150° and the shedding angle<15°. CNT on fabric surface contributedto the nano-scale surface roughness to hold the air traps like papillae oflotus leaf, giving superhydrophobic characteristics.

DOI: http://dx.doi.org/10.5755/j01.ms.21.1.5762

Author Biography

Myoung Hee Shim, Seoul National University

Development of superhydrophobic fabrics by surface fluorination and formation of CNT-induced roughness

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Published

2015-03-25

Issue

Section

TEXTILE MATERIALS