Cold plasma-induced modification of the dyeing properties of poly(ethylene terephthalate) fibers |
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Authors: | Antonino Raffaele-Addamo Ruggero Barni Francesco Orsini Laura Meda Bruno Marcandalli |
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Affiliation: | a Dipartimento di Chimica Fisica ed Elettrochimica, Università degli Studi di Milano, via Golgi 19, I-20133 Milan, Italy b Dipartimento di Fisica G. Occhialini, Università degli Studi di Milano-Bicocca and INFM, Piazza delle Scienze 3, I-20126 Milan, Italy c Istituto di Fisiologia Generale e Chimica Biologica, Università degli Studi di Milano, Via Trentacoste 2, I-20134 Milan, Italy d Polimeri Europa, Istituto G. Donegani, Via Fauser 4, I-28100 Novara, Italy e Stazione Sperimentale per la Seta, Via G. Colombo 83, I-20133 Milan, Italy |
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Abstract: | Surface modification of poly(ethylene terephthalate) (PET) fabrics induced by air radiofrequency (RF) plasma treatment has been investigated systematically as a function of plasma device parameters, to identify the plasma-polymer surface interactions prevailing under different operating conditions and leading to an increased color depth upon dyeing. Some tests have also been performed employing chemically inert argon as a feedstock gas. The dyeing properties of plasma-treated fibers were correlated to their topographical characteristics, determined by AFM analysis, and to their chemical surface composition, determined by XPS analysis, while the plasma-originated UV radiation was found to have no relevant effects in PET surface modification. The relative importance of plasma-induced surface processes, such as etching and grafting of polar species, is discussed in relation to their role in modifying PET dyeing properties. |
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Keywords: | 52.75.R 61.16.C 79.60 |
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