Examining the effect of nanosilver on the antibacterial fire-retardant coatings for pharmaceutical enterprises

Authors

  • Lubov Vakhitova L. M. Litvinenko Institute of Physical-Organic Chemistry and Coal Chemistry National Academy of Sciences of Ukraine Kharkivske shosse str., 50, Kyiv, Ukraine, 02160, Ukraine https://orcid.org/0000-0003-4727-9961
  • Volodymyr Bessarabov Kyiv National University of Technologies and Design Nemyrovych-Danchenko str., 2, Kyiv, Ukraine, 01011, Ukraine https://orcid.org/0000-0003-0637-1729
  • Konstantin Kalafat L. M. Litvinenko Institute of Physical-Organic Chemistry and Coal Chemistry National Academy of Sciences of Ukraine Kharkivske shosse str., 50, Kyiv, Ukraine, 02160, Ukraine https://orcid.org/0000-0001-5038-0601
  • Varvara Drizhd L. M. Litvinenko Institute of Physical-Organic Chemistry and Coal Chemistry National Academy of Sciences of Ukraine Kharkivske shosse str., 50, Kyiv, Ukraine, 02160, Ukraine https://orcid.org/0000-0002-8113-0768
  • Glib Zagoriy Kyiv National University of Technologies and Design Nemyrovych-Danchenko str., 2, Kyiv, Ukraine, 01011, Ukraine https://orcid.org/0000-0002-9362-3121

DOI:

https://doi.org/10.15587/1729-4061.2017.107281

Keywords:

nanosilver, polyhexamethyleneguanidine, fire protection, montmorillonite, antibacterial coatings, intumescent compositions

Abstract

We examined the effect of nanosilver – ionic silver, intercalated into interlaminar spaces of montmorillonite, as a biocidal additive to antibacterial fire-protection coatings for pharmaceutical enterprises.

We determined stability of intumescent coatings composed of ammonium polyphosphate/pentaerythritol/melamine/EVA/titanium oxide with additives of montmorillonite, modified with guanidine and quaternary ammonium cations as well as ions of silver in relation to mold and wood-staining fungi. It was shown that the application of a mixture of biocides – montmorillonites, modified with ions of silver and polyhexamethyleneguanidine cation, improves the class of biocidal effectiveness of coating from “not effective” to “effective. It was established that the mixture of Ag-montmorillonite and PHMG-montmorillonite demonstrated the synergistic effect against mold and wood-staining fungi and provided the “highly effective” class of biocidal effectiveness. According to data of microbiological studies, the paint, which contains in its composition the mixture of Ag and PGMG cations, exerts a disinfectant effect in relation to gram-positive and gram-negative bacteria (including tuberculosis), as well as mold fungi.

Field fire studies of intumescent paints for wood with the additives of Na-MMT, TSTA-MMT, PHMG-MMT and Ag-MMT were conducted in line with GOST 16363. It was shown that the admixtures of nanoclays into water-based intumescent paints decrease the temperature of flue gases and transfer wood into group I of fire-retardant effectiveness.

Results of the study allow us to recommend the introduction of the mixture (PHMG-MMT+Ag-MMT) into formulations of intumescent paints as an effective antibacterial additive. Its properties are predetermined by the suppression of proliferation of gram-positive and gram-negative bacteria, mold and wood-staining fungi.

Author Biographies

Lubov Vakhitova, L. M. Litvinenko Institute of Physical-Organic Chemistry and Coal Chemistry National Academy of Sciences of Ukraine Kharkivske shosse str., 50, Kyiv, Ukraine, 02160

PhD, Senior Researcher

Volodymyr Bessarabov, Kyiv National University of Technologies and Design Nemyrovych-Danchenko str., 2, Kyiv, Ukraine, 01011

PhD, Associate Professor, Senior Researcher

Department of Industrial Pharmacy

Konstantin Kalafat, L. M. Litvinenko Institute of Physical-Organic Chemistry and Coal Chemistry National Academy of Sciences of Ukraine Kharkivske shosse str., 50, Kyiv, Ukraine, 02160

Молодший науковий співробітник

Varvara Drizhd, L. M. Litvinenko Institute of Physical-Organic Chemistry and Coal Chemistry National Academy of Sciences of Ukraine Kharkivske shosse str., 50, Kyiv, Ukraine, 02160

Postgraduate Student

Glib Zagoriy, Kyiv National University of Technologies and Design Nemyrovych-Danchenko str., 2, Kyiv, Ukraine, 01011

Doctor of Pharmaceutical Sciences, Professor

Department of Industrial Pharmacy

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Published

2017-08-22

How to Cite

Vakhitova, L., Bessarabov, V., Kalafat, K., Drizhd, V., & Zagoriy, G. (2017). Examining the effect of nanosilver on the antibacterial fire-retardant coatings for pharmaceutical enterprises. Eastern-European Journal of Enterprise Technologies, 4(6 (88), 4–9. https://doi.org/10.15587/1729-4061.2017.107281

Issue

Vol. 4 No. 6 (88) (2017): Technology organic and inorganic substances

Section

Technology organic and inorganic substances

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Copyright (c) 2017 Lubov Vakhitova, Volodymyr Bessarabov, Konstantin Kalafat, Varvara Drizhd, Glib Zagoriy

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