Researchers at the Korea Research Institute of Chemical Technology (KRICT) have unveiled a groundbreaking marine-degradable polymer that combines the strength of nylon with environmental sustainability. This new material, a polyester-amide (PEA), achieves over 92% degradation in marine environments within just one year, a significant improvement over conventional biodegradable plastic.
The PEA polymer exhibits impressive mechanical properties, including a tensile strength of up to 110 MPa, surpassing both nylon 6 and PET. It can withstand heat up to 150°C, making it suitable for applications such as fishing nets, clothing, and food packaging. Notably, the polymer maintains its integrity in freshwater but rapidly degrades in seawater due to its unique molecular structure.
Produced using long-chain dicarboxylic acids derived from castor oil and caprolactam from recycled nylon 6 waste, the polymer’s synthesis process is compatible with existing polyester manufacturing facilities, facilitating easier adoption in the industry.
This innovation offers a promising solution to the growing issue of plastic pollution in oceans, providing a biodegradable alternative without compromising on performance. The research team is now focused on scaling up production and exploring commercial applications to address environmental challenges effectively. (Plastics Engineering)