The abandonment of fishing nets in our seas and oceans poses a significant and ongoing environmental challenge. In response to this issue, the REDES4VALUE project is dedicated to recovering and recycling discarded fishing nets, transforming them into new, sustainable products with high added value.

Source: AZOM

These include recycled nylon, packaging films, agricultural covers, automotive components, and large-format parts created through additive manufacturing. This transformation is made possible through innovative mechanical and chemical recycling processes, along with reactive extrusion technologies.

Collaborative Efforts and Goals

This initiative is supported by funding from the Valencian Institute of Competitiveness and Innovation (IVACE+i) and European Regional Development Fund (ERDF) resources. It brings together a consortium that includes AIMPLAS (Plastics Technology Centre), UBE, ZIKNES, and the University of Valencia. Their common goal is to close the life cycle of polyamides and reduce marine pollution through innovative, industry-ready solutions.

While many fishing nets are crafted from polyethylene or polypropylene, the project specifically targets polyamide nets, which are particularly suitable for chemical recycling. The molecular structure of polyamide allows for the recovery of monomers like caprolactam, enabling the creation of new polyamides with properties nearly indistinguishable from those of virgin materials.

Applications and Commercialization

Recycled polyamides are intended for various sectors, including packaging, agriculture, automotive, and 3D printing. Companies such as UBE are currently exploring their commercialization, while ZIKNES is modifying its equipment to validate large-format parts. Initial uses encompass packaging films, agricultural covers, automotive components, and large-scale 3D demonstrators.

Disruptive Technology and International Collaboration

The REDES4VALUE project is making strides in advanced processes such as hydrothermal depolymerization, ionic liquid-assisted solvolysis, and reactive extrusion, alongside comprehensive life cycle and feasibility assessments. One of the primary challenges faced is treating highly degraded nets laden with impurities; however, the preliminary results are promising.

Consortium and Future Directions

This initiative is funded by the Valencian Institute of Competitiveness and Innovation (IVACE+i), through the Strategic Cooperation Projects program in its 2024 call for proposals, with co-financing from the European Regional Development Fund (ERDF).