Modification of the surface of cross-linked oligophenylene based on 4,4'-diacetyldiphenyloxide and acetophenone by IR laser radiation
| Autor: | T. M. Babchinitser, Krasnov Aleksandr P, Lev N. Nikitin, I. A. Gribova, Dvorikova Raisa A, V. V. Korshak, M.M. Teplyakov, E. E. Said-Galiyev |
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| Rok vydání: | 1990 |
| Předmět: |
Materials science
Analytical chemistry Oxide Surfaces and Interfaces Radiation Condensed Matter Physics Indentation hardness Surface energy Surfaces Coatings and Films chemistry.chemical_compound chemistry Mechanics of Materials Polymer chemistry Materials Chemistry Graphite Irradiation Wetting Power density |
| Zdroj: | Wear. 140:263-272 |
| ISSN: | 0043-1648 |
| DOI: | 10.1016/0043-1648(90)90088-r |
| Popis: | The influence of quasi-momentum IR laser radiation (CO 2 laser; wavelength λ = 10.6 μm ; power density W = 70 W cm −2 ) on the physicochemical and mechanical properties of the surface of articles made from oligophenylene has been investigated. These oligomers were produced by the reaction of 4,4'-diacetyldiphenyl oxide and acetophenone and were filled with graphite. The measurements of the interfacial wetting angle demonstrated the influence of the irradiation dose on the surface energy. The relations between the coefficient of friction, wear and microhardness and the IR radiation dose were established. It was found that quasi-momentum IR laser radiation makes it possible to change significantly the structure of surface layers and to improve the tribological properties of polyphenylene without changing its chemical structure and initial physical properties as a whole. |
| Databáze: | OpenAIRE |
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