Application of Low-Temperature Postradiation Polymerization of Polytetrafluoroethylene for Hydrophobization of Porous Ceramic Materials Based on Oxide Fibers
- Authors: Kiryukhin D.P.1, Bespalov A.S.2, Bouznik V.M.2, Grashchenkov D.V.2, Ivanov V.K.3, Zvereva I.A.4, Kichigina G.A.1, Kushch P.P.1
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Affiliations:
- Institute of Problems of Chemical Physics, Russian Academy of Sciences
- All-Russian Scientific Research Institute of Aviation Materials
- Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
- St. Petersburg State University
- Issue: Vol 10, No 2 (2019)
- Pages: 467-472
- Section: New Technologies of Preparation and Treatment of Materials
- URL: https://journals.rcsi.science/2075-1133/article/view/207892
- DOI: https://doi.org/10.1134/S2075113319020229
- ID: 207892
Cite item
Abstract
Porous ceramic materials based on oxide fibers, which have lower specific density and thermal conductivity, are able to function at temperatures exceeding 1000°C, including in an oxidizing atmosphere, which allows this class of materials to have a wide range of applications in various industries. The disadvantage of such materials is the hydrophilicity caused by the chemical composition of the fibers and the highly developed porous structure, which severely limits their use, particularly in arctic and subarctic climates characterized by high humidity. The authors have investigated and proposed a method of hydrophobization using the technology of low-temperature postradiation graft polymerization of tetrafluoroethylene molecules. The technology makes it possible to apply polymer coatings to oxide fibers, providing high hydrophobic properties, which is manifested in the increased value of the contact angle of wetting the surface of the material, which in turn substantially improves their operational characteristics and expands the possibilities of practical application as heat-shielding and heat-insulating materials.
About the authors
D. P. Kiryukhin
Institute of Problems of Chemical Physics, Russian Academy of Sciences
Author for correspondence.
Email: kir@icp.ac.ru
Russian Federation, Chernogolovka, 142432
A. S. Bespalov
All-Russian Scientific Research Institute of Aviation Materials
Author for correspondence.
Email: 41mep@mail.ru
Russian Federation, Moscow, 105005
V. M. Bouznik
All-Russian Scientific Research Institute of Aviation Materials
Email: 41mep@mail.ru
Russian Federation, Moscow, 105005
D. V. Grashchenkov
All-Russian Scientific Research Institute of Aviation Materials
Email: 41mep@mail.ru
Russian Federation, Moscow, 105005
V. K. Ivanov
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: 41mep@mail.ru
Russian Federation, Moscow, 119991
I. A. Zvereva
St. Petersburg State University
Email: 41mep@mail.ru
Russian Federation, St. Petersburg, 199034
G. A. Kichigina
Institute of Problems of Chemical Physics, Russian Academy of Sciences
Email: 41mep@mail.ru
Russian Federation, Chernogolovka, 142432
P. P. Kushch
Institute of Problems of Chemical Physics, Russian Academy of Sciences
Email: 41mep@mail.ru
Russian Federation, Chernogolovka, 142432