Helium/Oxygen Atmospheric Pressure Plasma Treatment on Poly(ethylene terephthalate) and Poly(trimethylene terephthalate) Knitted Fabrics: Comparison of Low-stress Mechanical/Surface Chemical Properties

  • Hwang Yoon Joong (CSIRO Textile and Fibre Technology) ;
  • McCord Marian G. (Department of Textile Engineering, Chemistry and Science, College of Textiles, North Carolina State University) ;
  • Kang Bok Choon (Department of Textile Engineering, Inha University)
  • Published : 2005.06.01

Abstract

Helium-oxygen plasma treatments were conducted to modify poly(trimethylene terephthalate) (PIT) and poly(ethylene terephthalate) (PET) warp knitted fabrics under atmospheric pressure. Lubricant and contamination removals by plasma etching effect were examined by weight loss $(\%)$ measurements and scanning electron microscopy (SEM) analysis. Surface oxidation by plasma treatments was revealed by x-ray photoelectron spectroscopy (XPS) analyses, resulting in formation of hydrophilic groups and moisture regain $(\%)$ enhancement. Low-stress mechanical properties (evaluated by Kawabata evaluation system) and bulk properties (air permeability and bust strength) were enhanced by plasma treatment. Increasing interfiber and interyarn frictions might play important roles in enhancing surface property changes by plasma etching effect, and then changing low-stress mechanical properties and bulk properties for both fabrics.

Keywords

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