Methods for fabrication of silica aerogels with custom shapes using freeze drying
A method of synthesizing aerogels and cross-linked aerogels are described that incorporate freeze-drying in lieu of super-critical solvent drying. Advantages over supercritical drying include a reduction in hazard risks posed by drying at supercritical conditions as well as the ability to up-scale t...
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Main Authors | , , , |
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Format | Patent |
Language | English |
Published |
23.05.2023
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Subjects | |
Online Access | Get full text |
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Summary: | A method of synthesizing aerogels and cross-linked aerogels are described that incorporate freeze-drying in lieu of super-critical solvent drying. Advantages over supercritical drying include a reduction in hazard risks posed by drying at supercritical conditions as well as the ability to up-scale the process to accommodate large pieces of material without introducing risk. In addition, inexpensive and more sophisticated mold technologies, which are not impervious to super-critical conditions, can be used to produce aerogel materials according to the freeze-drying method of the invention. This introduces a level of freedom never before available for the production of aerogel components. |
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Bibliography: | Application Number: US202016939769 |