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Stabilizing Hepatocellular Phenotype Using Optimized Synthetic Surfaces

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Vegetable-Oil-Loaded Microcapsules for Self-Healing Polyurethane Coatings.

Efterpi Avdeliodi¹, Sofia Derizioti¹, Ioanna Papadopoulou¹

¹Department of Chemistry, University of Patras, 26504 Patras, Greece.

|December 11, 2025

Summary

New self-healing polyurethane coatings use encapsulated vegetable oils to repair damage and prevent corrosion. Soybean and olive oils demonstrate excellent performance, offering a sustainable solution for enhanced material durability and product longevity.

Keywords:

anti-corrosion castor oil microcapsules olive oil polyurethane coating self-healing soybean oil vegetable oils

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Area of Science:

Materials Science
Polymer Chemistry
Corrosion Science

Background:

Smart polymer materials offer enhanced reliability and waste reduction.
Self-healing and anti-corrosive properties are crucial for durable applications.
Polyurethane coatings are widely used but can degrade over time.

Purpose of the Study:

To develop novel temperature-activated self-healing polyurethane coatings.
To investigate the dual functionality of corrosion protection and self-repair.
To evaluate the efficacy of encapsulated vegetable oils in polyurethane matrices.

Main Methods:

Encapsulation of vegetable oils (olive, soybean, castor) in polyurea microcapsules.
Dispersion of microcapsules in water-based polyurethane matrices using a green method.
Assessment of self-healing and anti-corrosive properties after mechanical damage.

Main Results:

Encapsulated oils were released upon damage, with temperature reducing viscosity for accelerated healing.
Soybean and olive oils exhibited significant self-healing and anti-corrosion capabilities.
Castor oil showed good self-healing but limited anti-corrosion effects.

Conclusions:

Encapsulated vegetable oils provide an effective dual-action system for polyurethane coatings.
This approach offers an environmentally friendly solution for active coatings with self-repair and corrosion protection.
The study demonstrates the potential of VOs in advanced, sustainable material applications.