Effect of biocidal additives on the mesostructure of epoxy–siloxane bioactive coatings
- Авторы: Khamova T.V.1, Shilova O.A.1, Kopitsa G.P.2, Angelov B.3, Zhigunov A.3
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Учреждения:
- Grebenshchikov Institute of Silicate Chemistry
- Petersburg Nuclear Physics Institute
- Institute of Macromolecular Chemistry
- Выпуск: Том 10, № 1 (2016)
- Страницы: 113-122
- Раздел: Article
- URL: https://journals.rcsi.science/1027-4510/article/view/187805
- DOI: https://doi.org/10.1134/S1027451015060312
- ID: 187805
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Аннотация
We investigate the structure formation of sol–gel synthesized epoxy–siloxane compositions with a ratio of the main precursors of RTEOS/EPONEX 1510 = 27/27 wt %, modified with biocidal additives of detonation nanodiamonds (cDND = 0.13, 0.27, and 0.58 wt %), titanium dioxide (\(^cTi{O_2}\) = 0.1, 0.3, and 0.5 wt %), and Photosens (cPh = 0.04, 0.1, and 0.27 wt %), by small-angle X-ray scattering. Based on small-angle X-ray scattering (SAXS) data, it is revealed that the synthesized epoxy–siloxane xerogels are systems with a twolevel fractal structure, in the formation of which the siloxane component plays the dominant role. It is found that the introduction of small additions of detonation synthesis, titanium dioxide, or Photosens (less than 1 wt %) into the epoxy–siloxane compositions affects both the fractal dimension DS of the surface and the size dc1 of primary particles, and the fractal dimension DM and sizes dc2 of mass fractal clusters formed from them.
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Об авторах
T. Khamova
Grebenshchikov Institute of Silicate Chemistry
Автор, ответственный за переписку.
Email: ltpp@rambler.ru
Россия, St. Petersburg, 193034
O. Shilova
Grebenshchikov Institute of Silicate Chemistry
Email: ltpp@rambler.ru
Россия, St. Petersburg, 193034
G. Kopitsa
Petersburg Nuclear Physics Institute
Email: ltpp@rambler.ru
Россия, St. Petersburg, Gatchina, 188300
B. Angelov
Institute of Macromolecular Chemistry
Email: ltpp@rambler.ru
Чехия, Prague, 16206
A. Zhigunov
Institute of Macromolecular Chemistry
Email: ltpp@rambler.ru
Чехия, Prague, 16206
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