Application of Low-Temperature Postradiation Polymerization of Polytetrafluoroethylene for Hydrophobization of Porous Ceramic Materials Based on Oxide Fibers
- Autores: Kiryukhin D.1, Bespalov A.2, Bouznik V.2, Grashchenkov D.2, Ivanov V.3, Zvereva I.4, Kichigina G.1, Kushch P.1
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Afiliações:
- 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
- Edição: Volume 10, Nº 2 (2019)
- Páginas: 467-472
- Seção: 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
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Resumo
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.
Sobre autores
D. Kiryukhin
Institute of Problems of Chemical Physics, Russian Academy of Sciences
Autor responsável pela correspondência
Email: kir@icp.ac.ru
Rússia, Chernogolovka, 142432
A. Bespalov
All-Russian Scientific Research Institute of Aviation Materials
Autor responsável pela correspondência
Email: 41mep@mail.ru
Rússia, Moscow, 105005
V. Bouznik
All-Russian Scientific Research Institute of Aviation Materials
Email: 41mep@mail.ru
Rússia, Moscow, 105005
D. Grashchenkov
All-Russian Scientific Research Institute of Aviation Materials
Email: 41mep@mail.ru
Rússia, Moscow, 105005
V. Ivanov
Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences
Email: 41mep@mail.ru
Rússia, Moscow, 119991
I. Zvereva
St. Petersburg State University
Email: 41mep@mail.ru
Rússia, St. Petersburg, 199034
G. Kichigina
Institute of Problems of Chemical Physics, Russian Academy of Sciences
Email: 41mep@mail.ru
Rússia, Chernogolovka, 142432
P. Kushch
Institute of Problems of Chemical Physics, Russian Academy of Sciences
Email: 41mep@mail.ru
Rússia, Chernogolovka, 142432