Please use this identifier to cite or link to this item:
https://hdl.handle.net/11147/13978
Title: | Design and performance comparison of polymer-derived ceramic ambigels and aerogels | Authors: | İçin, Öykü Semerci, Tuğçe Soraru, Gian Domenico Ahmetoğlu, Çekdar Vakıf |
Keywords: | Thermal conductivity SiOC Aerogels Preceramic polymers Preceramic polymers |
Publisher: | American Chemical Society | Abstract: | This work reports the synthesis and characterization of preceramic-and polymer-derived SiOC aerogels obtained from a commercial siloxane resin. The preceramic aerogels were obtained by ambient pressure drying (ambigels) and CO2 supercritical drying. Despite different drying processes, the final ceramic ambi/aerogels have very similar microstructural features in density, porosity, pore size, and specific surface area. Both materials have shown promising results for oil sorption and water cleaning. Supercritically dried-SiOC aerogel had low thermal conductivity with 0.046 W.m(-1).K-1 at RT and 0.073 W.m(-1).K-1 at 500 degrees C. These results suggest that substituting the rather complicated and expensive CO2-SC drying with the more friendly and cheap ambient pressure drying can be done without having to accept significant microstructural/property degradation. | URI: | https://doi.org/10.1021/acsomega.3c04607 https://hdl.handle.net/11147/13978 |
ISSN: | 2470-1343 |
Appears in Collections: | Materials Science and Engineering / Malzeme Bilimi ve Mühendisliği PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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File | Size | Format | |
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Design-and-Perfor.pdf | 5.85 MB | Adobe PDF | View/Open |
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