Effect of Fluorination Treatment on Cotton Wettability, Dyeability and Mechanical Properties and Characterization of Surface Changes by XPS


Journal: Vol.7, No.2, Spring 2014 - Article 2   Pages :   Until 



Article Code:
PCCC-26-09-2012-209

Authors:
Shahla Shekarriz: Amirkabir University of Technology - Color and Polymer Research Centre
Zahra Shariatinia: Amirkabir University of Technology - Chemistry Department


Article's abstract:

Cotton fabric was treated with fluorine gas in a nitrogen atmosphere. The effect of fluorination treatments on wettability, whiteness index, dyeability and mechanical properties of cotton fabrics were assessed. Kawabata analysis shows that fluorination treatment increases shear stiffness G, shear hysteresis 2HG5, bending stiffness B and overall fabric stiffness Koshi on cotton fabric. Fluorination increases hydrophilicity of cotton by reducing the wetting time to less than 10 seconds for fluorinated cotton. In addition, the uniformity of wetting improves for the fluorinated samples. Fluorinated cotton dyed with two different direct dyes shows a slightly decreased exhaustion rate and colour yield. X-ray Photoelectron Spectroscopy XPS was used to characterize untreated and fluorinated cotton. XPS indicates that oxidation, fluorination and formation bonds - COO and –CHF at 289.5eV occurred on the fluorinated cotton surface.


Keywords:
fluorination Treatment; direct dyes; cotton; x-ray photoelectron spectroscopy; wettability; Kawabata analysis; dyeability

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