Green nanocomposite gels based on binary network of sodium alginate and percolating halloysite clay nanotubes for 3D printing

Glukhova, S.A.; Molchanov, V.S.; Chesnokov, Y.M.; Lokshin, B.V.; Kharitonova, E.P.; Philippova, O.E.

Статья опубликована в высокорейтинговом журнале

Информация о цитировании статьи получена из Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 8 апреля 2022 г.

Авторы: Glukhova Svetlana A., Molchanov Vyacheslav S., Chesnokov Yury M., Lokshin Boris V., Kharitonova Elena P., Philippova Olga E.
Журнал: Carbohydrate Polymers
Том: 282
Год издания: 2022
Издательство: Pergamon Press Ltd.
Местоположение издательства: United Kingdom
Номер статьи: 119106
DOI: 10.1016/j.carbpol.2022.119106
Аннотация: Alginate hydrogels with embedded rigid percolating network of halloysite clay nanotubes were evaluated as a novel ink for 3D printing. Hydrophilic alginate macromolecules adsorbing on halloysite stabilize the network of the nanotubes and form their own network of interlaced polymer chains. The effect of halloysite content on the structure and properties of the hydrogels was studied by rheometry, thermogravimetric analysis, FTIR-spectroscopy, dynamic light scattering, transmission electron microscopy, and 3D cryo-electron microscopy. Hydrogels demonstrate a very pronounced shear-thinning at extrusion and rather quick viscosity recovery after extrusion assigned to rapid rearrangement of the network structure promoted by mobile alginate chains. Even at low volume fractions (up to 0.054) the nanotubes reinforce the hydrogel increasing its storage modulus up to 650 Pa and inducing the appearance of yield stress. These properties make the alginate/halloysite hydrogels promising for the application in 3D printing for fabrication of green and sustainable nanocomposite materials made from natural components.
Добавил в систему: Молчанов Вячеслав Сергеевич

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Green nanocomposite gels based on binary network of sodium alginate and percolating halloysite clay nanotubes for 3D printingстатья

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