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Environmentally Friendly Photoluminescent Coatings for Corrosion Sensing
Carmen R Tubio1, Laura Garea1, Bárbara D D Cruz2,3
1BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain.
Polymers
|February 13, 2025
Summary
Environmentally friendly coatings using photoluminescent lanthanide salts in vegetable oil resins were developed for corrosion sensing. These sustainable materials effectively detect early corrosion on carbon steel, offering a greener alternative.
Area of Science:
- Materials Science
- Electrochemistry
- Environmental Science
Background:
- Corrosion research lacks eco-friendly material solutions, hindering sustainable technology transitions.
- Photoluminescent materials offer potential for corrosion sensing applications.
- Developing sustainable corrosion sensing coatings is crucial for environmental protection.
Purpose of the Study:
- To develop and investigate eco-friendly composite coatings for corrosion sensing.
- To utilize photoluminescent lanthanide salts dispersed in vegetable oil-based resins.
- To assess the coatings' performance on carbon steel in corrosive environments.
Main Methods:
- Incorporation of lanthanide complex salts (Nd3+ and Yb3+) into vegetable oil-based resins.
- Preparation of composite coatings on carbon steel substrates.
- Evaluation of coatings' morphology, structure, and photoluminescence under saline corrosion.
Main Results:
- Composite coatings demonstrated functional properties for corrosion detection.
- Photoluminescence properties were influenced by corrosion time, particularly for Nd3+ doped coatings.
- The coatings effectively detected early-stage corrosion on carbon steel.
Conclusions:
- Eco-friendly composites based on photoluminescent salts are suitable for corrosion sensing.
- These materials offer a sustainable alternative for corrosion detection in coatings.
- The developed coatings show promise for practical applications in monitoring steel corrosion.
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