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Use of SiO2 Nanoparticles Modified with Polyethylene Glycol to Increase the Hydrophilicity of Epoxy Coatings

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Abstract

SiO2 nanoparticles were modified with polyethylene glycol with a molecular weight of 2000, 6000, and 10000 g mol–1. For modification, the method based on the sequential interaction of polyethylene glycol with 3-(triethoxysilyl)propyl isocyanate with further treatment of the reaction product with nanodispersed SiO2 was used. The resulting product was characterized by IR spectroscopy, thermal analysis, and scanning electron microscopy. Modified nanodispersed SiO2 was introduced into epoxy resin in order to obtain coatings characterized by increased hydrophilicity. To improve the physical and mechanical characteristics, fillers were introduced into the composition of the coating with 30 wt % modified SiO2 nanoparticles: mica-muscovite and TiO2. It was shown that the process of biological fouling of epoxy coatings in the South China Sea proceeds more slowly in the case of a composition containing SiO2 nanoparticles modified with polyethylene glycol 6000.

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ACKNOWLEDGMENTS

The authors thank the staff of the Joint Russian-Vietnamese Tropical Research and Technology Center for photographing coating samples.

Funding

The work was carried out within the framework of a state assignment from the Institute of Silicate Chemistry of the Russian Academy of Sciences with the support of the Ministry of Education and Science of Russia (project no. 0081-2022-0005).

Full-scale testing of coatings was carried out at the Joint Russian-Vietnamese Tropical Research and Technology Center as part of the Ecolan T-1.14-2020 project.

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Authors and Affiliations

  1. Grebenshchikov Institute of Silicate Chemistry, Russian Academy of Sciences, 199034, St. Petersburg, Russia

    E. N. Evdokimova, Yu. A. Kondratenko, V. L. Ugolkov & T. A. Kochina

  2. St. Petersburg State Institute of Technology (Technical University), 190013, St. Petersburg, Russia

    E. N. Evdokimova

Authors
  1. E. N. Evdokimova
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  2. Yu. A. Kondratenko
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  3. V. L. Ugolkov
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  4. T. A. Kochina
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Contributions

E.N. Evdokimova: synthesis of modified nanoparticles, production of compositions, coating, study of physical and mechanical properties of coatings; Yu.A. Kondratenko: analysis of all experimental data, generalization of results; V.L. Ugolkov: study of thermal stability of coatings; T.A. Kochina: discussion of the results of full-scale tests.

Corresponding author

Correspondence to Yu. A. Kondratenko.

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The authors declare that there are no conflicts of interest to disclose in this article.

Additional information

Translated from Zhurnal Prikladnoi Khimii, No. 3, pp. 287–296, August, 2023 https://doi.org/10.31857/S0044461823030076

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Evdokimova, E.N., Kondratenko, Y.A., Ugolkov, V.L. et al. Use of SiO2 Nanoparticles Modified with Polyethylene Glycol to Increase the Hydrophilicity of Epoxy Coatings. Russ J Appl Chem 96, 315–323 (2023). https://doi.org/10.1134/S1070427223030072

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