Forming of thermoplastic prepreg with aligned High-Performance Discontinuous Fibre (HiPerDiF), for sustainable composite manufacturing

使用对齐的高性能不连续纤维 (HiPerDiF) 形成热塑性预浸料，用于可持续复合材料制造

• 批准号: 2460540
• 金额: --
• 依托单位: University of Bristol
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2020
• 资助国家: 英国
• 起止时间: 2020 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2460540
• 关键词: Forming; thermoplastic; prepreg; aligned; Performance

Although composite materials can play a role part in the decarbonisation of transport, through structure lightweighting, they are inherently challenging in terms of sustainability. This is because the high-performance composites used in the aerospace and automotive sector are often made of carbon fibres and thermosets resins that are difficult to recycle. The HiPerDiF (High-Performance Discontinuous Fibre) method, invented at the University of Bristol, offers a way to remanufacture composites from reclaimed fibres. The method allows the production of composites comprising high-volume fractions of highly aligned discontinuous fibres, with high processability and performance. Still, greater sustainability credentials can be gained by using thermoplastic matrices which have a greater potential for recycling. This study aims to develop a forming simulation tool for the manufacturing of thermoplastic HiPerDiF tapes, which are composed of 3mm long carbon fibres and PLA matrix. The tool is expected to be validated by forming experiments. This can help in the development of a robust manufacturing process for the highly formable HiPerDiF thermoplastic matrix tapes.

虽然复合材料可以通过结构轻量化在运输脱碳中发挥作用，但它们在可持续性方面具有内在的挑战性。这是因为航空航天和汽车领域使用的高性能复合材料通常由难以回收的碳纤维和热固性树脂制成。布里斯托大学发明的HiPerDiF（高性能不连续纤维）方法提供了一种用回收纤维再制造复合材料的方法。该方法允许生产包含高体积分数的高度排列的不连续纤维的复合材料，具有高的可加工性和性能。尽管如此，通过使用具有更大回收潜力的热塑性基质，可以获得更大的可持续性证书。本研究旨在开发一种用于制造热塑性HiPerDiF带材的成形模拟工具，该带材由3mm长的碳纤维和PLA基体组成。该工具预计将通过成形实验进行验证。这可以帮助开发用于高度可成形的HiPerDiF热塑性基质带的稳健的制造工艺。