Novel biobased formulations for CIRCULAR construction materials(CIRCULAR-C)

The EU project CIRCULAR-C focuses on developing a new generation of circular, sustainable, and biobased adhesives, coatings, and functionalized fibres. The aim is to increase the capacity of biobased sectors by maximizing residue valorisation and material recycling, as well as minimizing environmental and climate impact. It is funded by the EU with around 4 million euros for 4 years.

The scientific literature continually identifies adhesive residues as the main contaminant preventing effective wood fibre recycling. Urea-formaldehyde adhesives, which represent the prevailing binding system, create multiple recycling challenges such as cross-linked polymer networks and particle quality degradation as well as chemical contamination issues. This significantly complicates the recycling process, since up to 60% of collected wood waste consists of physical and chemical impurities.

A new generation of circular chemicals

The CIRCULAR-C project will focus on developing a new generation of circular, sustainable, and biobased adhesives, coatings, and functionalized fibres. Designed specifically for wood panels, which are commonly used in flooring, furniture and insulation, these innovative formulations will feature reversible chemical bonds and fire retardancy. This approach enhances recyclability and significantly reduces environmental impact, paving the way for a more sustainable and circular construction industry.

An integral part will be the inclusion of Digital Product Passports (DPPs). The development will follow the Safe and Sustainable by Design (SSbD) principles and include environmental safety and life cycle assessments. Investigation of recycling and secondary recycling as well as secondary market applications are included in the project.

Steinbeis Europa Zentrum successfully supported the consortium in the application process. The evaluation resulted in 15/15 points. As one of the project partners, it is now responsible for communication, dissemination,  stakeholder engagement and - together with Soprema - the exploitation of the project results.

Further Information:

• Projekt Name: CIRCULAR-C - Novel biobased formulations for CIRCULAR Construction materials
• Funding: European Commission, Horizon Europe
• Funding budget for all partners: 4 million euros
• Project Duration: 06/2025 – 05/2029
• Participating countries: Belgium, Finland, France, Germany, Greece, Netherlands, Turkey