Examples



mdbootstrap.com



 
Статья
2019

Thermochemical Reaction of Lead Oxide with a Polytetrafluoroethylene Matrix


V. E. RogovV. E. Rogov, R. V. KurbatovR. V. Kurbatov, L. A. BokhoevaL. A. Bokhoeva
Российский журнал прикладной химии
https://doi.org/10.1134/S1070427219020071
Abstract / Full Text

Thermochemical transformations that lead oxide used as filler in a polytetrafluoroethylene matrix undergoes in the course of heat treatment were studied. Samples were prepared from a mixture of the polymer with the filler by pressing followed by heat treatment. X-ray diffraction analysis shows that the heat treatment in air leads to multistep thermochemical reaction of the polymer with the inorganic filler with the formation of Pb2F2O and PbF2. Presumably, dispersed lead oxide particles occurring in intimate contact with the polymer, when heated in air, initiate the polymer degradation via cleavage of the C−F bond to form new compounds. Along with the formation of new compounds, the reduction of lead oxide to the metal is observed.

Author information
  • Baikal Institute of Nature Management, Siberian Branch, Russian Academy of Sciences, Ulan-Ude, Buryatia, 670047, RussiaV. E. Rogov & R. V. Kurbatov
  • East Siberian State University of Technologies and Management, Ulan-Ude, Buryatia, 670033, RussiaL. A. Bokhoeva
References
  1. Panshin, Yu.A., Mal’kevich, S.G., and Dunaevskaya, Ts.S., Ftoroplasty (Fluoroplastics), Leningrad: Khimiya, 1978.
  2. Patent RU 2100702, Publ. 1997.
  3. Patent RU 2497846, Publ. 2013.
  4. Baker, S., Derre, R., and Schtelt, E., Ross. Khim. Zh., 1993, vol. 37, no. 3, pp. 29–33.
  5. Starke, L., Verwerten von Plastabfällen und Plastaltstoffen, Leipzig: Grundstoffindustrie, 1984.
  6. Pratt, G.C., Lubrication and Lubricants, Bruithwaite, E.R., Ed., Amsterdam: Elsevier, 1967, pp. 377–426.
  7. Rogov, V.E., Kornopol’tsev, N.V., Mognonov, D.M., Ayurova, O.Zh., and Maksanova, L.D., Tren. Iznos, 2001, vol. 22, no. 1, pp. 104–108.
  8. Rogov, V.E., Tsyrenova, G.D., Perevalov, A.V., and Bokhoeva, L.A., Khim. Tekhnol., 2016, no. 10, pp. 446–452.
  9. Pozharovzryvoopasnost’ veshchestv i materialov i sredstva ikh tusheniya: Spravochnik (Fire and Explosion Hazard of Substances and Materials and Means for Their Extinguishment: Handbook), Baratov, A.N. and Korol’chenko, A.Ya., Eds., Moscow: Pozhnauka, books 1–2.
  10. Rogov, V.E., Tsurenova, G.D., and Cherskii, I.N., Tren. Iznos, 2009, vol. 30, no. 4, pp. 390–395.
  11. Crystals with the Fluorite Structure, Hayes, W., Ed., Oxford: Clarendon, 1974.
  12. Rusin, D.L. and Sinyavskii, N.N., Usp. Khim. Khim. Tekhnol., 2011, vol. 25, no. 12 (128), pp. 86–91.
  13. Rusin, D.L., Sinyavskii, N.N., and Evlanov, M.P., Usp. Khim. Khim. Tekhnol., 2010, vol. 24, no. 3 (108), pp. 69–74.
  14. Bryk, M.T., Destruktsiya napolnennykh polimerov (Degradation of Filled Polymers), Moscow: Khimiya, 1989.
  15. Rogov, V.E., Vestn. Mashinostr., 2010, no. 7, pp. 53–58.
  16. Zlobinskii, B.M., Ioffe, V.G., and Zlobinskii, V.V., Vosplamenyaemost’ i toksichnost’ metallov i splavov (Ignitability and Toxicity of Metals and Alloys), Moscow: Metallurgiya, 1972.
  17. Aseev, R.M. and Zaikov, G.E., Gorenie polimernykh materialov (Combustion of Polymer Materials), Moscow: Nauka, 1981.