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Organic Aerogels Based on Epoxy Resins: Synthesis and Propertiesстатья
- Авторы: Voytik Alexey, Malkov Georgiy V., Kapasharov Artur T., Kostin Alexey Yu
- Журнал: Key Engineering Materials
- Том: 869
- Год издания: 2020
- Издательство: Trans Tech Publications Ltd.
- Местоположение издательства: Germany
- Первая страница: 240
- Последняя страница: 245
- DOI: 10.4028/www.scientific.net/kem.869.240
- Аннотация: The aim of this work was to develop methods for the synthesis of organic aerogels based on epoxy resins and to investigate their properties. Aerogels based on DGEBA-epoxy resin were obtained by CO2-supercritical drying of gel samples prepared from acetone solutions of epoxy resin with different amount of catalyst and solvents. As a result, aerogels of different density were obtained; the dependence of density on the solvent content in the samples was revealed. The aerogels were characterized by infrared spectroscopy to define the degree of conversion of the epoxy groups, by SEM to confirm nanoscale morphology of aerogels, as well as by the BET method to determine the specific surface area of the samples and its dependence on the catalyst content and curing conditions.
- Добавил в систему: Малков Георгий Васильевич