Preparation of superhydrophobic and flexible polysiloxane aerogel
| Autor: | Jiafei Ren, Qifang Li, Guomin Song, Guangxin Chen, Zheng Zhou, Linbin Wang, Ruilu Guo |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Process Chemistry and Technology Heat resistance Aerogel 02 engineering and technology 021001 nanoscience & nanotechnology 01 natural sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Chemical engineering Specific surface area 0103 physical sciences Materials Chemistry Ceramics and Composites 0210 nano-technology Mesoporous material |
| Zdroj: | Ceramics International. 46:10362-10369 |
| ISSN: | 0272-8842 |
| DOI: | 10.1016/j.ceramint.2020.01.033 |
| Popis: | Silica aerogels, which consist of nano-particles and abundant nano-pores, have many outstanding properties. However, poor mechanical performances dramatically limit the practical applications of aerogel. Herein, we reported the preparation of novel superhydrophobic and flexible silica aerogel with several kinds of polysiloxane. The aerogel was formed with the polysiloxane and multimethoxy-POSS, the POSS was efficiently synthesized by thio-ene reaction and used as a crosslinking agent to strengthen the structure. The obtained data revealed all aerogels had the mesoporous structure (19–27 nm), high specific surface area (476.3–632.9 m2 g−1) and fine heat resistance. The different ratio of side groups on polysiloxane and the content of POSS led to the different mechanical properties, the ultimate compression strain was up to 50%. Moreover, the further oil-water separation application has also been demonstrated. |
| Databáze: | OpenAIRE |
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