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Start Over Author "Voronin, D. V." Topic cellulose
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2. Functional Materials Based on Carboxylated Nanofibrillar Cellulose.

Author

Gong, Yinghua, Li, Tianduo, Krainov, A.A., Voronin, D. V., Semenov, A. P., Dubinich, V. N., Panchenko, A. A., and Vinokurov, V. A.

Subjects
CELLULOSE, DYNAMIC viscosity, FOURIER transform infrared spectroscopy, TRANSMISSION electron microscopy, COLLOIDAL stability, CARBOXYLATE derivatives
Abstract

In this work, we synthesized samples of carboxylated nanofibrillar cellulose (NFC) and a derivative that is a product of chemical crosslinking of carboxylated NFC with ethylenediamine. The results of transmission electron microscopy revealed that crosslinking does not lead to noticeable morphological changes in the NFC structure. The chemical modification of the carboxylated NFC was confirmed by FTIR spectroscopy. It was found that chemical crosslinking of carboxylated NFC with ethylenediamine leads to an increase in the colloidal stability of aqueous suspensions, water retention capacity, and dynamic viscosity of gels. The study of the rheological characteristics showed that the aqueous dispersions of the obtained samples are pseudoplastic liquids and have thixotropic properties. [ABSTRACT FROM AUTHOR]

Published
2022
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