Surface modification of textiles by glow discharge technique: Part II: Low frequency plasma treatment of wool fabrics with acrylic acid

Abstract

In this study, wool fibers are modified by low frequency plasma polymerization of acrylic acid regarding to its' hydrophobic character due to cuticular cells at their surfaces. Variables of the plasma glow discharge processes were power (40-100 W) and exposure time (5-45 min). The effect of plasma modification in the performance properties of wool were investigated on the basis of hydrophilicity of wool, average wrinkle recovery angle, and breaking strength. The surface chemical structures of fabrics were examined with x-ray photoelectron spectroscopy. The hydrophobic wool fabric became hydrophilic after all plasma treatments except one (40W-5 min).Average wrinkle recovery angle of the treated fabrics were between 157 and 178 , while that of untreated fabric was 180. The treated fabrics had a little bit lower angles according to the untreated fabric. However, even the lowest value as 157 means that the fabric has a good crease resistance property. The breaking strengths of fabrics were increased up to 26% after the plasma treatments.

Plasma Treatment in Textile Industry

“…After plasma treatment the hydrophobic wool fabric became hydrophilic and the breaking strengths of fabrics were increased up to 26%. Average wrinkle recovery angle of the treated fabrics were between 157 and 178°, while that of untreated fabric was 180° . Significant decrease in contact angle and increase in surface energy of polyethylene, polyamide and polytetrafluoroethylene fabrics was observed after DBD plasma treatments in presence of He–O 2 gases .…”

Low‐temperature plasma processing for the enhancement of surface properties and dyeability of wool fabric

“…In addition, disulfide bonds at the fiber surface might have been oxidized by the oxygen plasma, as proved by Kutlu et al . with X‐ray photoelectron spectroscopy analysis …”

“…listed many applications of plasma technology for the surface modification of wool to improve its surface‐related properties, such as spinnability, shrink‐proofing, and improvement in air permeability, printability, and dyeability . Various researchers have used plasma technology for surface modification of wool and studied its effect on dyeability . Wool shows surface etching when it is treated with an inert gas plasma, causing improvement in its dyeability and antifelting property.…”

Kompozit Üretiminde Takviye Malzemesi Olarak Kullanılabilecek Çeşitli Hayvansal Liflere Uygulanan Yüzey Modifikasyonlarının Lif Özelliklerine Etkisi

“…Kutlu ve ark. [7] akrilik asit plazma modifikasyonunun yün liflerinin yüzey hidrofilliğini arttırdığını ve oksijen plazmasına göre kütikül tabakasına daha az zarar verdiğini tespit etmişlerdir. Ozon modifikasyonu lif yüzeyini okside ederek ve iyonik dengesini değiştirerek kimyasal olarak daha aktif bir lif yüzeyi meydana getirmekte ve ayrıca lifin mekanik özelliklerini de iyileştirmektedir.…”