Preparation and Characterization of Mechanically Strong Nanocomposite Latex Materials
Based on Polyurethane/Graphene Oxide

S. A. Baskakov; Баскаков С. А.; Yu. V. Baskakova; Баскакова Ю. В.; E. V. Dvoretskaya; Дворецкая Е. В.; S. S. Krasnikova; Красникова С. С.; V. A. Lesnichaya; Лесничая В. А.; Yu. M. Shulga; Шульга Ю. М.; V. N. Vasilets; Василец В. Н.

doi:10.31857/S0023119323020043

Preparation and Characterization of Mechanically Strong Nanocomposite Latex Materials Based on Polyurethane/Graphene Oxide

Authors: Baskakov S.A.¹, Baskakova Y.V.¹, Dvoretskaya E.V.¹, Krasnikova S.S.¹, Lesnichaya V.A.¹, Shulga Y.M.¹, Vasilets V.N.²
Affiliations:
1. Institute of Problems of Chemical Physics, Russian Academy of Sciences
2. Chernogolovka Branch of Semenov Federal Research Center for Chemical Physics, Russian Academy of Sciences
Issue: Vol 57, No 3 (2023)
Pages: 191-197
Section: НАНОРАЗМЕРНЫЕ СИСТЕМЫ И МАТЕРИАЛЫ
URL: https://rjsvd.com/0023-1193/article/view/661503
DOI: https://doi.org/10.31857/S0023119323020043
EDN: https://elibrary.ru/NGNGZA
ID: 661503

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Abstract

Nanocomposites based on aqueous polyurethane latex and graphene oxide have been synthesized and characterized. The structure and composition of the nanocomposites were studied using elemental analysis, optical microscopy, IR spectroscopy, DSC, and thermogravimetry. The nanocomposites showed higher thermal stability and increased mechanical strength compared to those of the original polymer. It has been established that the Young’s modulus of latex films after the introduction of 2 wt % graphene oxide increased by a factor of almost 6. In this case, the fracture stress decreased only slightly by 10–15%. The influence of the particle size of graphene oxide on the mechanical properties of the composites was found, namely: composites with larger particles of graphene oxide had a higher Young’s modulus, and their relative elongation at break decreased

Keywords

polyurethane, graphene oxide, nanocomposites, IR spectra, TGA, DSC, mechanical properties

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