In the pursuit of environmentally friendly marine antifouling materials, researchers have drawn inspiration from the self-defense mechanisms of fish epidermis. Silicone-based composites, free from harmful fungicides, emerge as promising candidates. These composites, infused with silicone oil, mimic the mucus secretion of fish, showcasing impressive fouling-release properties.

The study underscores the significance of self-lubricating composites, simulating fish epidermis’ mucus secretion. The incorporation of biochar into the composites enhances surface roughness and mechanical strength. Biochar’s porous nature plays a crucial role in locking oil, thereby extending the self-lubricating period. Long-term antifouling efficacy relies on the gradual exudation of oil from the composite surface.

Biochar, recognized as an environmentally friendly material, proves instrumental in this breakthrough. Its unique porous structure efficiently absorbs oil, ensuring substantial oil storage and gradual release. Using porous corncob biochar as a lubricant container, researchers explore different additions to enhance chemical, physical, and mechanical properties. The judicious incorporation of biochar not only delays oil release but also augments the composite’s mechanical strength, establishing a foundation for sustained fouling-release capability.

This innovative approach to marine antifouling marks a significant stride toward environmentally conscious solutions. By harnessing self-lubricating properties inspired by nature, silicone-based composites enriched with biochar offer a promising avenue for combating biofouling sustainably. The study underscores the importance of balancing mechanical strength and oil release for long-term effectiveness, paving the way for a greener and cleaner marine future.