Implantação de Íons de Nitrogênio em PMMA Através de uma Fonte Kaufman

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DOI:

https://doi.org/10.18226/23185279.v5iss1p31

Abstract

A modificação de superfícies é uma técnica que a engenharia tem feito uso há muito tempo, para melhoria de propriedades em materiais. O poli metil-metacrilato (PMMA), por ser um material de constante uso em aplicações biomédicas, exige que sua superfície apresente características favoráveis à adesão celular e compatibilidade com tecidos. Os polímeros, de uma maneira geral, quando submetidos a tratamentos em plasma, tendem a formar grupos funcionais que alteram propriedades ópticas, químicas, físicas e de biocompatibilidade. Em função disso, este trabalho propôs realizar a funcionalização de substratos de PMMA através da fonte de íons Kaufman. Amostras de PMMA foram submetidas ao feixe de íons de nitrogênio gerado pela fonte Kaufman, em diversas condições. A caracterização foi feita pelas técnicas de GD-OES, FTIR e EDS. Ficou comprovado, através do perfil de concentração de nitrogênio obtido por GD-OES, que a quantidade de nitrogênio na superfície aumenta gradativamente com o tempo de implantação e a potência. Outro indício foi a análise em FTIR, que mostrou presença de aminas nas faixas entre 1654-655 cm-1 e 3300-3700 cm-1. A análise em EDS, porém, comprovou também a presença de ferro e cromo, agentes citotóxicos, que precisam ser eliminados para a continuidade dos trabalhos.

 

http://dx.doi.org/10.18226/23185279.v5iss1p31

References

T. Homola, et al., "Activation of poly (ethylene terephthalate) surfaces by atmospheric pressure plasma", Polymer degradation and stability, vol. 97, no. 11, pp. 2249-2254, 2012 (http://doi.org/10.1016/j.polymdegradstab.2012.08.001)

F. Rezaei, et al., "Investigation of antibacterial and wettability behaviours of plasma-modified PMMA films for application in ophthalmology", Journal of Physics D: Applied Physics, vol. 47, no. 8, pp. 085401 2014 (http://iopscience.iop.org/article/10.1088/0022-3727/47/8/085401)

D. Waugh and J. Lawrence, "Wettability characteristics variation of PMMA by means of CO2 laser generated surface patterns" in ICALEO 2009, pp., Year.

R. K. Y. Fu, et al., "Surface modification of polymeric materials by plasma immersion ion implantation", Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, vol. 237, no. 1-2, pp. 417-421, 2005 (http://doi.org/10.1016/j.nimb.2005.05.029)

D. Dorranian, et al., "Structural and optical characterization of PMMA surface treated in low power nitrogen and oxygen RF plasmas", Journal of Non-Oxide Glasses vol. 1, no. 3, pp. 217-229, 2009 (http://www.chalcogen.ro/index.php/journals/journal-of-non-oxide-glasses/14-jnog/340-volume-1-number-3-july-september-2009)

N. S. Kasalkova, et al., "Wettability and Other Surface Properties of Modified Polymers", in Wetting and Wettability, pp. 323-356. InTech Rijeka, 2015 (http://dx.doi.org/10.5772/60824)

Y. Sakurabayashi, et al., "Surface hardness improvement of PMMA by low-energy ion irradiation and electron irradiation", Electronics and Communications in Japan, vol. 94, no. 8, pp. 19-26, 2011 (http://onlinelibrary.wiley.com/doi/10.1002/ecj.10350/full)

D. Dorranian, et al., "Investigation of nitrogen plasma effect on the nonlinear optical properties of PMMA", Journal of Theoretical and Applied Physic, vol. 6, no. 1, pp. 1-8, 2012 (http://link.springer.com/article/10.1186/2251-7235-6-1)

R. Landgrafa, et al., "Functionalization of Polymer Sensor Surfaces by Oxygen Plasma Treatment ", Procedia Chemistry, vol. 1, no. 1, pp. 1015-1018, 2009 (http://doi.org/10.1016/j.proche.2009.07.253)

V. Jokinen, et al., "Oxygen and nitrogen plasma hydrophilization and hydrophobic recovery of polymers", Biomicrofluidics, vol. 6, no. 1, pp. 016501 (1-10), 2012 (http://dx.doi.org/10.1063/1.3673251)

S. J. Park, et al., "Hydrophilic Polymethyl-methacrylate (PMMA) by Nitrogen-Argon Plasma Treatment" in Physics Congress of the Samahang Pisikang Pilipinas, pp., Year.

P. Nowak, et al., "Addition of a single chemical functional group to a polymer surface with a mass-separated low-energy ion beam", Surface and Interface Analysis, vol. 23, no. 13, pp. 873-878, 1995 (http://onlinelibrary.wiley.com/doi/10.1002/sia.740231304/full)

V. Zhurin, "Industrial ion sources: broadbeam gridless ion source technology", 309 pages, John Wiley & Sons Weinheim, 2012)

J. R. Kahn and H. R. Kaufman, "Low-energy Ion-Beam etching" in 49th Society of Vacuum Coaters, pp., Year.

M. Jelinek, et al., "Comparison of Surface Properties of DLC and Ultracrystalline Diamond Films with Respect to their Bio-Applications", physica status solidi (a), vol. 210, no. 10, pp. 2106-2110, 2013 (http://onlinelibrary.wiley.com/doi/10.1002/pssa.201228713/abstract)

L. Köhler, et al., "Ability of a Kaufman source to functionalize the surface of polystyrene by low-energy (80–225 eV) nitrogen ion bombardment", Surface and Interface Analysis, vol. 29, no. 10, pp. 647-652, 2000 (http://onlinelibrary.wiley.com/doi/10.1002/1096-9918(200010)29:10%3C647::AID-SIA911%3E3.0.CO;2-O/full)

I. Staff of Kaufman & Robinson, "In-Situ Cleaning for Thin-Film Deposition ", vol., no., pp., 2006)

N. Oudini, et al., "Physics and modeling of an end-Hall (gridless) ion source ", Journal of Applied Physics, vol. 109, no. 7, pp. 073310 1-11, 2011 (http://dx.doi.org/10.1063/1.3572053)

S. Arif, et al., "Effect of silver ion-induced disorder on morphological, chemical and optical properties of poly (methyl methacrylate)", Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, vol. 387, no., pp. 86-95, 2016 (http://dx.doi.org/10.1016/j.nimb.2016.09.024)

Ismayil, et al., "Optical and microstructural studies on electron irradiated PMMA: A positron annihilation study", Polymer Degradation and Stability, vol. 95, no. 6, pp. 1083-1091, 2010 (http://dx.doi.org/10.1016/j.polymdegradstab.2010.02.031)

B. H. Stuart, "Infrared Spectroscopy: Fundamentals and Applications", 244 pages, John Wiley & Sons London, 2004)

G. Socrates, "Infrared and Raman Characteristic Group Frequencies: Tables and Charts", 347 pages, John Wiley & Sons New York, 2004)

A. R. Silva, et al., "Improvement on PMMA surface breakdown using plasma immersion ion implantation" in 2015 IEEE Pulsed Power Conference (PPC), pp. 1-3, Year.

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Published

08/10/2017

How to Cite

Fontoura, C. P., Wanke, C. H., & Aguzzoli, C. (2017). Implantação de Íons de Nitrogênio em PMMA Através de uma Fonte Kaufman. Scientia Cum Industria, 5(1), 31–36. https://doi.org/10.18226/23185279.v5iss1p31

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Science, Education and Engineering