Posters
Come meet the poster presenters to ask them questions and discuss their work
We would like to invite you to come and see the posters at our upcoming conference. The posters will showcase a diverse range of research topics, and will give delegates an opportunity to engage with the authors and learn more about their work. Whether you are a seasoned researcher or simply curious about the latest developments in your field, we believe that the posters will offer something of interest to everyone. So please join us at the conference and take advantage of this opportunity to learn and engage with your peers in the academic community. We look forward to seeing you there!
PO223: Advanced Polyurethane Solutions for Economical Blade Manufacturing and Recycling
Dirk Soontjens , Global Wind Segment Leader Wind, Covestro
Abstract
An advanced portfolio of polyurethane (PU) solutions tailored for various applications within the wind energy sector has been developed. Especially, an innovative PU resin system, designed for vacuum infusion in wind blade production, opens new opportunities for enhanced blade design, manufacturing processes, energy generation, and recycling practices. Recently, around 1,500 wind blades utilizing this state-of-the-art PU resin have been manufactured. This significant achievement has the potential to yield a substantial 3 billion kW·h of renewable energy, contributing to a reduction of approximately 2.4 million tons of CO2 emissions compared to conventional coal-based electricity generation. In recognition of their dedication to sustainable practices, the authors' organization was honored with the JEC innovation award in the sustainability category. To work towards a circular approach, where polymer waste is repurposed into valuable feedstock, cutting-edge chemical recycling methods such as chemolysis and smart pyrolysis are assessed with respect to their utilization for PU wind blade recycling. In chemolysis, the polymer is broken down using a solvent, while in pyrolysis, high temperatures are used. These processes are also being developed for similar PU materials as part of European projects funded by the public. This further underscores the potential of applying these methods to recycle PU wind blades. With a keen focus on mechanical properties and processing efficiency, the presented PU resin system boasts low viscosity and high reactivity, allowing for shorter manufacturing cycles of blades. Furthermore, this PU resin's attributes contribute to the production of more durable and larger blades. Eventually, the integration of PU in wind blade composites and coatings results in multifaceted benefits, including shortened manufacturing cycles, heightened durability, decreased maintenance needs, and extended blade designs. These advantages collectively contribute to a reduced carbon footprint, expediting the integration of new wind capacity and offering reliable and cost-effective clean energy solutions to end-users.
