Publicação: Polymer treatment by plasma immersion ion implantation of nitrogen for formation of diamond-like carbon film
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Nitrogen ions were implanted by plasma immersion in Kapton, Mylar and polypropylene, with the objective of forming a diamond-like carbon layer on these polymers. The Raman spectrum of the implanted polypropylene showed typical Diamond-Like Carbon (DLC) graphite (G) and disorder (D) peaks, with an sp 3/sp2 hybridization ratio of approximately 0.4 to 0.6. The XPS analysis of the three implanted polymers also showed peaks of C-C and N-C bonds in the sp3 configuration, with hybridization ratios in the same range as the Raman result. The implanted polymers were exposed to oxygen plasma to test the resistance of the polymers to oxygen degradation. Mass loss rate results, however, showed that the DLC layer formed is not sufficiently robust for this application. Nevertheless, the layer formed can be suitable for other applications such as in gas barriers in beverage containers. Further study of implantation conditions may improve the quality of the DLC layer.
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Diamond-like carbon, Nitrogen, Oxidation, Plasma immersion ion implantation, Polymers, Raman spectroscopy, X-ray photoelectron spectroscopy, Binding energy, Degradation, Diamonds, Ionization, Photoconducting materials, Plasmas, Polyethylene terephthalates, Polypropylenes, Thin films, X ray photoelectron spectroscopy, Surface modifications, Ion implantation
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Inglês
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Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, v. 43, n. 9 A, p. 6399-6404, 2004.
