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1 Autex Research Journal

1 2003

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Surface characterisation of low-temperature plasma treated wool fibre

Kan C. W., Chan K., Yuen C. W. M.

Autex Research Journal

2003

Vol. 3, no. 4

194--205

Previous investigation results revealed that after the Low-Temperature Plasma (LTP) treatment, the hydrophilicity of wool fibres was improved significantly. Such an improvement enhances the wool dyeing and finishing processes which might be due to the wool surface changing to a more reactive one. In this paper, wool fibres were treated with LTP with different gases, namely oxygen, nitrogen and a mixture of gases (25% hydrogen, 75% nitrogen). Investigations showed that the chemical composition of the wool fibre surface varied differently with different plasma. The variation of surface composition influences the hydrophilicity of the wool fibres. The surface chemical composition of the LTP-treated wool fibres was characterised by different characterisation methods, namely FTIR-ATR, XPS and saturated adsorption value. The experimental results of these methods are thoroughly discussed.