Surface morphology changes of poly(ethyleneterephthalate) fabrics induced by cold plasma treatments |
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Authors: | Email author" target="_blank">G?PolettiEmail author F?Orsini A?Raffaele-Addamo C?Riccardi E?Selli |
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Institution: | (1) Istituto di Fisiologia Generale e Chimica Biologica and INFM, Università di Milano, via Trentacoste 2, 20134 Milano, Italy;(2) Università di Milano Bicocca and INFM, P.zza della Scienza 3, 20126 Milano, Italy;(3) Dipartimento di Chimica Fisica ed Elettrochimica, Università di Milano, via Golgi 19, 20133 Milano, Italy |
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Abstract: | Some selective cold plasma processing modify specific surface properties of textile polymeric materials such as their dyeability,
wettability and hydrorepellence. To correlate the sample surface changes with the acquired surface properties allows one to
obtain information on the chemical and physical processing involved in plasma treatment. In this work, atomic force microscopy
(AFM) has been applied to investigate the morphological and topographical surface modifications induced by RF cold plasma
processing of poly(ethyleneterephthalate) (PET) fabrics. Rms surface roughness and surface area of the samples are measured
before and after the treatments. The morphology changes have been analysed as a function of the treatment time and air gas
pressure. Measurements have been performed also using plasmas produced by different gases such as He, Ar, SF6 and CF4. The PET shows different behaviour with different gas plasmas. In the case of air, He and Ar gases the sample surface modifications
seem to be mainly due to etching effects, while the fluorine atoms grafting probably is responsible for surface rearrangement
process using SF6 and CF4 gases. As a consequence different surface properties are produced in the plasma treated samples.
Article presented at the International Conference on the Frontiers of Plasma Physics and Technology, 9–14 December 2002, Bangalore,
India. |
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Keywords: | Plasma processing of materials poly(ethyleneterephthalate) fabrics morphology atomic force microscopy |
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