Polymers are used in many areas of modern life, including kitchen surface and car textile coatings, laundry detergent and glues that fix wind turbine parts together. However, many of these polymers are made from non-renewable (fossil-derived) components and have a range of environmental issues, both during production and once they reach the end of their useful life.
Society cannot rely on non-renewable polymers in the long term, and the avoidance of harmful production processes is necessary for the many workers in these industries. As demonstrated in the drive to reduce single-use plastics, it is essential to consider what will happen to the polymers once they are no longer in use, and design them so that effective recycling and/or biodegradability is possible. CHAMPION aimed to replace the conventional polymers with new, high-performing and safer bio-based ones, with improved end-of-life options via recycling or biodegradation.
The key achievements against the objectives of the project:
• 180 novel materials were prepared, in addition to the monomers and pre-polymers.
• Key knowledge was acquired on polymerisation processes for production of unsaturated polyesters for implementing and optimization at larger pilot scale. Databases were generated of the chemical processes for production of unsaturated polyesters with suitable molecular weights for targeted applications of the aza-Michael materials.
• An innovative, cost-effective testing strategy was established to rapidly evaluate toxicological safety issues of candidate products.
• Seven bio-based polymer candidates were produced at a scale suitable for application testing in a relevant industrial setting.
• The project completed initial performance tests on 60 polymer candidates, well exceeding the 10-40 that was originally planned. The three candidates which met all the necessary criteria proceeded to advanced testing as homecare formulation additives, coatings and automotive interior surfaces during the final year of the project.
• Biodegradation was improved compared to conventional materials but it was not possible to achieve complete biodegradation in soil or water within a reasonable time frame.
• Communication with key audiences and stakeholders along the entire value chain was achieved via newsletters, webinars, workshops, and comics.