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Novel Superhydrophobic Aerogel on the Base of Polytetrafluoroethyleneстатья Исследовательская статья
Статья опубликована в высокорейтинговом журнале
Статья опубликована в журнале из списка Web of Science и/или Scopus- Авторы: Baskakov Sergey A., Baskakova Yuliya V., Kabachkov Evgene N., Dremova Nadezhda N., Michtchenko Alexandre, Shulga Yury
- Журнал: ACS applied materials & interfaces
- Год издания: 2019
- Издательство: American Chemical Society
- Местоположение издательства: United States
- DOI: 10.1021/acsami.9b10455
- Аннотация: Polytetrafluoroethylene-based aerogel was synthesized for the first time. Graphene oxide was used as a binder. After reduction with hydrazine and annealing at 370°C, the aerogel with a density of 29 ± 2 mg/cm3 became superhydrophobic. The aerogel was characterized by IR spectroscopy, scanning electron microscopy, and X-ray photoelectron spectroscopy. The sorption capacity of the aerogel for seven solvents and its sorption recyclability for hexane were measured. The unique properties of aerogels are formed due to their composition, mainly consisting of air. Silica aerogels have a density of from 0.003 to 0.1 g/cm3 and are characterized by a high specific surface area, a low dielectric constant, low thermal conductivity and superhydrophobicity. At the same time, we did not find a single publication about aerogels that included polytetrafluoroethylene (PTFE), which is known for its hydrophobicity. The reason for this may be that PTFE has a very low adhesion and is not wetted by most organic solvents. Therefore, obtaining aerogel based on PTFE is an interesting and technically challenging task.
- Добавил в систему: Кабачков Евгений Николаевич