Silica-based organic nanocomposite for prevention of hazardous gas seeping into buildings through construction materials

This chapter deals with a novel nanocomposite specifically developed for chemical treatment of walls, floors, ceilings, roofs, etc. to prevent or limit exposure to dangerous gases seeping into buildings through constructive materials. The developed silica-based organic nanocomposite contains the mixture of polyethylhydrosiloxane and the solution of alkyltriethoxysilane in isopropanol with a tin-based catalyst. The nanocomposite fills micropores inside the concrete or another constructive material against hazardous gases, including volatile organic compounds, organic and inorganic gases, and radioactive gases emitting alpha particles. The method allows for reducing the coefficient of gas (air, Ar, 222Rn, CO, 85Kr, 133,135Xe, etc.) permeability 200-400 times. The consumption of chemicals depends on the porosity of the materials; it is equal to 0.2L/m2 for gypsum and 0.3-0.4L/m2 for concrete and cement, respectively. © 2018 Elsevier Inc. All rights reserved.

Authors
Khaydarov R.1 , Gapurova O.1 , Khaydarov R.1 , Garipov I.1 , Cho S.-Y.2 , Nikolova E. 3
Publisher
Elsevier Inc.
Language
English
Pages
643-647
Status
Published
Year
2018
Organizations
  • 1 Institute of Nuclear Physics, Tashkent, Uzbekistan
  • 2 Yonsei University, Wonju, South Korea
  • 3 Peoples' Friendship University of Russia, Moscow, Russian Federation
Keywords
Nanocomposite; Polyethylhydrosiloxane; Radon; VOC
Date of creation
19.10.2018
Date of change
19.10.2018
Short link
https://repository.rudn.ru/en/records/article/record/6828/
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