Low Energy Implantation of Carbon into Elastic Polyurethane
| Autor: | Anton Y. Beliaev, Dmitriy M. Kiselkov, A. S. Kamenetskikh, Ilya A. Morozov, Marina G. Scherban |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
02 engineering and technology 010402 general chemistry 01 natural sciences chemistry.chemical_compound stiffness Phase (matter) Materials Chemistry ion implantation deformability Composite material Elastic modulus Polyurethane chemistry.chemical_classification Surfaces and Interfaces Polymer Sputter deposition 021001 nanoscience & nanotechnology 0104 chemical sciences Surfaces Coatings and Films Ion implantation chemistry polyurethane lcsh:TA1-2040 Free surface Deformation (engineering) 0210 nano-technology lcsh:Engineering (General). Civil engineering (General) |
| Zdroj: | Coatings, Vol 10, Iss 3, p 274 (2020) Coatings Volume 10 Issue 3 |
| ISSN: | 2079-6412 |
| Popis: | Ion modification of polymeric materials requires gentle regimens and subsequent investigation of mechanical and deformation behavior of the surfaces. Polyurethane is a synthetic block copolymer: A fibrillar hard phase is inhomogeneoulsy distributed in a matrix of soft phase. Implantation of carbon ions into this polymer by deep oscillation magnetron sputtering (energy&mdash 0.1&ndash 1 keV and dose of ions&mdash 1014&ndash 1015 ion/cm2) forms graphene-like nanolayer and causes heterogeneous changes in structural and mechanical properties of the surface: Topography, elastic modulus and depth of implantation for the hard/soft phase areas are different. As a result, after certain treatment regimens strain-induced defects (nanocracks in the areas of the modified soft phase, or folds in the hard phase) appear on the surfaces of stretched materials. Treated surfaces have increased hydrophobicity and free surface energy, and in some cases show good deformability without any defects. |
| Databáze: | OpenAIRE |
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