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Effects of Helium Atmospheric Pressure Plasma Treatment on Low-Stress Mechanical Properties of Polypropylene Nonwoven Fabrics
- Hwang, Yoon J., Mccord, Marian G., An, Jae S., Kang, Bok C., Park, Shin W.
- Textile research journal 2005 v.75 no.11 pp. 771-778
- X-ray photoelectron spectroscopy, air, atmospheric pressure, chemical composition, friction, helium, hydrophilicity, nonwoven fabrics, oxidation, permeability, polypropylenes, scanning electron microscopy, tensile strength, textile fibers, weight loss, wettability
- Polypropylene nonwoven fabrics are treated by He atmospheric pressure glow discharge plasma. After plasma treatment, weight loss (%), surface properties (wettability, morphology, and chemical composition changes), tensile strength, low-stress mechanical properties, and air permeability of the fabrics are examined. Scanning electron microscopy analysis shows significant surface morphology changes in plasma-treated polypropylene fiber surfaces, corresponding to reductions in fabric weight. X-ray photoelectron spectroscopy analysis reveals that surface oxidation by the formation of hydrophilic groups enhances the surface wettability of the fabrics. Surface morphology changes with plasma treatment increase fiber-to-fiber friction, playing an important role in enhancing their tensile strength, low-stress mechanical properties, and air permeability.