Metal-Containing Poly(tetrafluoroethylene): A Novel Material
Source abstract
Abstract
A method is described for preparing isolated Fe nanoparticles on the surface of poly(tetrafluoroethylene) (PTFE) nanogranules. The composition and atomic structure of the nanoparticles are investigated by transmission electron microscopy and EXAFS, x-ray emission, and Mossbauer spectroscopic techniques. The nanoparticles have a complex composition and structure and contain α-Fe (15%). The majority phase in the nanoparticles is iron carbide (48%). On the surface of the PTFE nanogranules, the nanoparticles react with fluorine, forming Fe–F bonds (12% FeF2). The free surface of the nanoparticles, noninteracting with fluorine, is oxidized by oxygen to form Fe2O3 (25%). A model for the structure of the nanoparticles is described.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Material Properties and Applications · Polymer Science and Applications · Advanced Theoretical and Applied Studies in Material Sciences and Geometry
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (19)
Show source-provided references
1. Entsiklopediya polimerov (Encyclopedia of Polymers), Moscow, 1977, vol. 3, pp. 643–647.
2. Anderson, G.M., Iobal, L., Sharp, D.H., et al., Redox Reaction Involving Molybdenum, Tungsten, and Uranium Hexafluorides in Acetonitrile, J. Fluorine Chem., 1984, vol. 24, no. 3, pp. 303–317.10.1016/S0022-1139(00)81319-6 ↗
3. Mashkov, Yu.K., Kalistratova, L.F., and Ovchar, Z.N., Struktura i iznosostoikost'modifitsirovannogo politetraftoretilena (Structure and Wear Resistance of Modified Poly(tetrafluoroethylene)), Omsk: Omsk. Gos. Tekhnicheskii Univ., 1998.
4. Kozinkin, A.V., Sever, O.V., Gubin, S.P., et. al., Clusters in a Polymer Matrix: I. Investigation of the Composition and Structure of Iron–Containing Clusters in a Fluorinated Polymer Matrix, Neorg. Mater., 1994, vol. 30, no. 5, pp. 678–684 [Inorg. Mater. (Engl. Transl.), vol. 30, no. 5, pp. 634–640].
5. Buznik, V.M., Tsvetnikov, A.K., and Matveenko, L.A., Khim. Interes. Ust. Razv., 1996, no. 4, pp. 489–496.
6. Tsvetnikov, A.K. and Uminskii, A.A., RF Patent 1775419, Izobret., Poleznye Modeli, 1992, no. 42.
7. Kozinkin, A.V., Vlasenko, V.G., Gubin, S.P., et al., Clusters in a Polymer Matrix: II. Investigation of the Composition and Structure of Iron–Containing Clusters in a Polyethylene Matrix, Neorg. Mater., 1996, vol. 32, no. 4, pp. 422–428 [Inorg. Mater. (Engl. Transl.), vol. 32, no. 4, pp. 376–381].
8. Gubin, S.P., Kozinkin, A.V., Afanasov, M.I., et al., Clusters in a Polymer Matrix: III. Composition and Structure of Fe–Containing Nanoparticles in Preceramic Organosilicon Polymers, Neorg. Mater., 1999, vol. 35, no. 2, pp. 237–243 [Inorg. Mater. (Engl. Transl.), vol. 35, no. 2, pp. 180–185].
9. Kosobudskii, I.D. and Gubin, S.P., Metallic Clusters in Polymer Matrices: A New Type of Metal–Filled Polymers, Vysokomol. Soedin., 1985, vol. 27, no. 3, pp. 689–695.
10. Gubin, S.P., Korobov, M.S., Yurkov, G.Yu., et al., Nanometallization of Ultradispersed Poly(tetrafluoroethylene), Dokl. Akad. Nauk, 2003, vol. 388, no. 4, pp. 493–496.
11. Stern, E.A., Newville, M., Ravel, B., et al., The UWXAFS Analysis Package: Philosophy and Details, Physica B (Amsterdam), 1995, vol. 208/209, p. 117.10.1016/0921-4526(94)00826-H ↗
12. Nefedov, V.I., Kurmaev, E.Z., and Porai–Koshits, M.A., Electronic Structure and Configuration of Complexes from Transition–Metal Emission Data, Zh. Strukt. Khim., 1972, vol. 13, no. 4, pp. 637–643.
13. Nefedov, V.I., Valence Electron Levels of Chemical Compounds, Itogi Nauki Tekh., Ser.: Stroenie Mol. Khim. Svyaz, 1975, vol. 3.
14. Narbut, K.I. and Smirnova, I.S., Fe and Spectra of Minerals and Some Chemical Compounds, Izv. Akad. Nauk SSSR, Ser. Fiz., 1972, vol. 36, no. 2, pp. 354–366.
15. Kochubei, D.I., Babanov, Yu.A., Zamaraev, K.I., et al., Rentgenospektral'nyi metod issledovaniya struktury amorfnykh tel: EXAFS–Spektroskopiya (EXAFS Spectroscopy: A Tool for Probing the Structure of Amorphous Materials), Novosibirsk: Nauka, 1988.
16. Zabinski, S.I., Rehr, J.J., Ancudinov, A., et al., Multiple–Scattering Calculations of X–ray–Absorption Spectra, Phys. Rev. B: Condens. Matter, 1995, vol. 52, pp. 2995–3009.10.1103/PhysRevB.52.2995 ↗
17. Koksharov, Yu.A., Gubin, S.P., Kosobudsky, I.D., et al., Low–Temperature Electron Paramagnetic Resonance Anomalies in Fe–Based Nanoparticles, J. Appl. Phys., 2000, vol. 88, no. 1, pp. 587–592.
18. Grinstaff, M.W., Salamon, M.B., and Suslick, K.S., Magnetic Properties of Amorphous Iron, Phys. Rev. B: Condens. Matter, 1993, vol. 48, no. 1, pp. 269–273.10.1103/PhysRevB.48.269 ↗
19. Koksharov, Yu.A., Blyumenfel'd, L.A., Tikhonov, A.N., and Sherle, A.I., Weak–Field Microwave Absorption Hysteresis in Polycrystalline Ferromagnets, Zh. Fiz. Khim., 1999, vol. 73, no. 10, pp. 1856–1860.