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Application of AFM Microscopy for the Identification of Fibres Surface Changes after Plasma Treatments

The application of low-pressure argon- and oxygen-plasma treatment as an eco-friendly process of Lyocell textile modification was investigated. Using atomic force microscopy (AFM), the changes of nano-morphology induced by plasma treatments were recorded. The chemical groups of the outer fibre layer treated with plasmas and silver compounds (AgNO3, AgCl) were analysed using the Fourier transform infrared - attenuated total reflectance spectroscopy (FTIR-ATR). The viscosimetric method was used to determine possible changes of the cellulose polymer molecular weight after plasma treatments. The experimental results provided data useful for better understanding the art of plasma action on fibre surface, depending on nature of gases. They also indicate to different mechanisms of silver nano-particles binding and their distribution on the surface of treated Lyocell fabric, depending on the parameters of the applied plasma process.

Lyocell fibre ; plasma treatment ; surface modification ; nano-roughness ; silver nano-particles ; AFM

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