Scientists develop marine-biodegradable nylon alternative

In a groundbreaking development, researchers from the Korea Research Institute of Chemical Technology (KRICT), led by Dr. Hyun-Yeol Jeon and Dr. Hyo-Jeong Kim, have created a high-performance polyester-amide (PEA) that degrades by over 92% in marine environments within a year, offering a transformative solution to ocean pollution caused by synthetic textiles and fishing gear.

Unlike existing biodegradable alternatives, which often lack the mechanical and thermal properties needed for practical use, this new material strikes a balance between performance and biodegradability.

What sets this innovation apart is its sustainable sourcing. The researchers synthesized the polymer using long-chain dicarboxylic acids derived from castor oil, a renewable, non-edible plant source, along with caprolactam derivatives recovered from recycled nylon 6 waste. This not only reduces environmental impact but also promotes circularity by integrating waste recovery into material creation.

“This technology marks a pivotal step toward the commercialization of biodegradable engineering plastics and will significantly contribute to solving the global marine plastic pollution crisis,” said Young-Kuk Lee, President of KRICT.

The material is compatible with existing nylon manufacturing infrastructure, which could accelerate industry adoption without requiring costly retooling or supply chain overhauls. From apparel to fishing equipment, this next-generation polymer holds the promise of reshaping industries while safeguarding marine ecosystems.