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Antifouling Epoxy Coatings with Scots Pine Bark Extracts
Tomasz Szmechtyk1, Magdalena Efenberger-Szmechtyk2, Agata Czyżowska2
1Department of Physical Chemistry, Faculty of Chemistry, University of Lodz, Pomorska 163/165, 90-236 Lodz, Poland.
Molecules (Basel, Switzerland)
|January 10, 2026
Summary
Scots pine bark extract in epoxy coatings offers antibacterial and anticorrosive properties. This natural solution enhances coating performance without compromising mechanical or chemical integrity.
Area of Science:
- Materials Science
- Biotechnology
- Corrosion Science
Background:
- Antifouling coatings require robust antibacterial, mechanical, and chemical properties.
- Tannins from Scots pine bark exhibit anticorrosive and antibacterial potential.
- Phytochemicals from conifers offer natural antibacterial solutions.
Purpose of the Study:
- To evaluate Scots pine bark extract as a functional additive in epoxy coatings.
- To investigate the impact of varying extract ratios on coating performance.
- To assess the antibacterial, mechanical, chemical, and anticorrosive properties of the developed composites.
Main Methods:
- Characterization of Scots pine bark extract (Total Phenolic Content - TPC, High-Performance Liquid Chromatography - HPLC).
- Formulation of epoxy composites with different extract concentrations.
- Physical testing (density), mechanical testing (Shore D hardness, bending, impact).
- Chemical analysis (Differential Scanning Calorimetry - DSC, Fourier-Transform Infrared Spectroscopy - FTIR, chemical resistance).
- Microbiological testing (antibacterial activity assays).
Main Results:
- The epoxy composites demonstrated significant antibacterial activity.
- The addition of Scots pine bark extract influenced the mechanical and chemical properties.
- Optimized extract ratios were identified for enhanced coating performance.
- The extract contributed positively to the anticorrosive behavior of the coatings.
Conclusions:
- Scots pine bark extract is a viable natural additive for developing high-performance antifouling epoxy coatings.
- The extract imparts beneficial antibacterial and anticorrosive properties.
- Further research can optimize extract integration for specific industrial applications.
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