Abstract
A comparative study of the effect of low-energy treatment with Ar ions, high-energy implantation with Ti ions, and subsequent deposition of bioactive nanostructured Ti-Ca-P-C-O-N coating on structure and properties of the polytetrafluoroethylene (PTFE) surface was carried out. The fcc phase based on titanium carbonitride with crystallite size of ∼20 nm was found to be the major structural component of the Ti-Ca-P-C-O-N coating deposited onto the PTFE support. The ionic treatment of the PTFE surface increases the edge angle of wetting from 100 to 128°. The deposition of the Ti-Ca-P-C-O-N coating onto smooth PTFE surface results in a significant decrease of the edge angle of wetting to 20°; whereas the deposition of the coating onto high-porosity PTFE surface after ion implantation results in complete spreading and absorption of a drop. The differences in electrochemical behavior of the PTFE samples coated with Ti-Ca-P-C-O-N were shown to be determined by different roughnesses and wettabilities.
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Original Russian Text © A.N. Sheveyko, Ph.V. Kiryukhantsev-Korneev, D.V. Shtansky, 2013, published in Fizikokhimiya Poverkhnosti i Zashchita Materialov, 2013, Vol. 49, No. 3, pp. 277–283.
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Sheveyko, A.N., Kiryukhantsev-Korneev, P.V. & Shtansky, D.V. The effect of preliminary ion treatment on structure and chemical properties of polytetrafluoroethylene with a bioactive nanostructured coating. Prot Met Phys Chem Surf 49, 292–298 (2013). https://doi.org/10.1134/S2070205113030155
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DOI: https://doi.org/10.1134/S2070205113030155