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Abstract
Polyurethane aerogels (PUAs) are interesting materials because of their high porosity, low density, and low thermal conductivity, which result in their application as thermal insulations. PUAs are mainly synthesized using di- and polyisocyanates, diols or polyols, catalysts (tertiary amines and organometallic), and solvents (which are used as reaction medium, purifying of obtained semiproducts). Preparation procedure involves several steps, which permit to perform the transformation: sol → wet gel → aerogel. The final step of aerogels formation is mostly realized by drying using supercritical carbon dioxide. Obtained aerogels are characterized in the terms of their chemical structure, microstructure, physical and mechanical properties. The main aim of presented work was to review preparation, properties and applications of polyurethane-based aerogels.
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Keywords
Details
- Category:
- Monographic publication
- Type:
- rozdział, artykuł w książce - dziele zbiorowym /podręczniku w języku o zasięgu międzynarodowym
- Language:
- English
- Publication year:
- 2024
- Bibliographic description:
- Włoch M.: Polyurethane-based aerogels: Preparation, properties, and applications// Handbook of Thermosetting Foams, Aerogels, and Hydrogels: From Fundamentals to Advanced Applications/ : , , s.173-192
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/b978-0-323-99452-1.00027-9
- Sources of funding:
-
- Free publication
- Verified by:
- Gdańsk University of Technology
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