Depolymerisable thermoset polymer resins for circular composites.

复合材料和其他多种材料在使用寿命结束时很难恢复价值，导致污染，填埋或降级循环。组件的分离是保持单个组件处于最高价值状态的关键。受玻璃热固性材料的启发，我们转而寻求固定但可降解的系统，这些系统可以解聚为可再聚合的单体并回收复合填料，而不会影响表面功能或纤维纵横比。聚酯和其他聚合物主链的新化学物质将在玻璃纤维和碳纤维系统中进行探索。这项工作探索了合成技术（经典的舒伦克技术，通过扩大反应器），材料加工（包括多个铺层和挤出技术）和表征（显微镜，热，机械和化学表征），并结合了团队在评估和评估可持续材料方面的广泛跨学科专业知识。

Composites and other multi-materials are difficult to recover value from at end-of-life, leading to pollution, landfilling or downcycling. The separation of components is key to retaining individual components in their highest value condition. Inspired by vitrimeric thermosets, we instead seek fixed but degradable systems that can depolymerise to repolymerisable monomers and recover composite fillers without impacting surface functionality or fibre aspect ratio. New chemistries for both polyester and other polymeric backbones will be explored in both glass and carbon fibre4 systems. The work explores both synthetic techniques (classic Schlenk techniques through to scale up reactors), materials processing (including multiple lay-up and extrusion techniques) and characterization (microscopy, thermal, mechanical and chemical characterization) and incorporates the teams broad interdisciplinary expertise in evaluating and assessing sustainable materials.