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Inorganic Materials: Applied Research

, Volume 9, Issue 5, pp 861–867 | Cite as

Tetrafluoroethylene Telomeres Used to Prepare Fluorine-Containing Hydrophobic Silica Fabric

  • G. A. Kichigina
  • P. P. Kushch
  • E. A. Krivonogova
  • D. P. Kiryukhin
  • V. G. Dorohov
  • V. V. Barelko
Materials for Ensuring Human Vital Activity and Environmental Protection
  • 6 Downloads

Abstract

Fluoroplastic varnished cloth is a fiberglass fabric that has been repeatedly impregnated with fluoroplastic suspension (F-4D) and treated thermally; it contains ~60–80% of fluoroplastic. In this work, silica fabric KT-11-13 has been used as the base for the production of varnished cloths with a low content of fluoropolymer, whereas solutions of tetrafluoroethylene telomeres with the general formula A–(CF2–CF2)n–B synthesized by radiation in acetone (n ~ 15, A, B being CH3COCH2, H, CH3) and pentafluorochlorobenzene (n ~ 70, A, B being C6F5, Cl) have been used as an impregnating medium. A hydrophobic material containing 5–10% of fluoropolymer has been obtained; the technique of pretreatment of industrial fabric from technical lubricant has been worked out; several methods for its removal have been suggested. Silica and aluminoborosilicate fabrics used as bases have been compared; the feasibility of using tetrafluoroethylene telomeres in аcetone and pentafluorochlorobenzene has been evaluated. The presence of a fluoropolymer coating providing hydrophobicity of silica fabric is indicated by IR absorption spectra.

Keywords

tetrafluoroethylene telomere superwaterproof cover 

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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • G. A. Kichigina
    • 1
  • P. P. Kushch
    • 1
  • E. A. Krivonogova
    • 2
  • D. P. Kiryukhin
    • 1
  • V. G. Dorohov
    • 1
  • V. V. Barelko
    • 1
  1. 1.Institute of Problems of Chemical PhysicsRussian Academy of SciencesChernogolovka, Moscow oblastRussia
  2. 2.Ogarev Mordovia State UniversitySaranskRussia

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