NOVEL MANUFACTURING METHODS FOR THE INCLUSION OF SELF-HEALING AGENTS FOR AEROSPACE AND AUTOMOTIVE COMPOSITE MATERIALS AND THEIR PROPERTIES

航空航天和汽车复合材料中含有自修复剂的新型制造方法及其性能

• 批准号: 2393053
• 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: 2019
• 资助国家: 英国
• 起止时间: 2019 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2393053
• 关键词: NOVEL; MANUFACTURING; METHODS; INCLUSION; SELF

Novel manufacturing methods for the inclusion of Self-healing agents for aerospace and automotive composite materials and their properties In nature, all organism can repair/heal themselves to some degree. This can be as extreme as re-growing lost limbs by some species of starfish to the scabbing and sealing of superficial scratches to the epidermis of humans. These are examples of autonomic self-healing. This is in contrast to modern man-made materials like composites and plastics, which once damaged they need fixing or replacing from an external source (e.g. welding in metals, patches on composite structures). These are an example of external healing. Building on past research and recent advances in autonomic self-healing. This project aims to use previous research on Diels-Alder (DA) based covalent adaptable networks (CANs) to assess their suitability and processability as a prepreg to make commercially available systems such as glass laminate aluminium reinforced epoxy (GLARE) with self-healing capabilities through the reversible covalent bonds that could provide a circular economy for composites. Characterisation and detection techniques of both the prepreg and the composite by (FTIR, NIR, Raman and ultrasound) to see DA and reverse Diels-Alder (rDA) products and the effect that damage has on the structure. DMA/TMA studies to determine the effects of the different fibres and curing temperatures on the DA reaction has on the mechanical properties of the composite including. Continued research to use rheological studies on the prepreg to characterise the self-healing efficiencies alongside the use of more traditional tensile/compression testing to determine the self-healing efficiencies. Alongside research into effects of curing and post-curing regimes upon self-healing efficiencies.

用于航空航天和汽车复合材料的自修复剂的新制造方法及其性能在自然界中，所有生物都可以在一定程度上修复/愈合自己。这可以是极端的重新生长失去的肢体由一些物种的海星到结痂和密封的表面划痕到表皮的人类。这些都是自主自愈的例子。这与复合材料和塑料等现代人造材料形成鲜明对比，这些材料一旦损坏，就需要从外部进行修复或更换（例如焊接金属、复合结构上的补丁）。这是外部治疗的一个例子。建立在过去的研究和自主自我愈合的最新进展。该项目旨在使用先前对基于Diels-Alder（DA）的共价自适应网络（CAN）的研究，以评估其作为预浸料的适用性和可加工性，以通过可逆共价键使玻璃层压铝增强环氧树脂（GLARE）具有自愈能力，从而为复合材料提供循环经济。通过FTIR、NIR、拉曼和超声波对预浸料和复合材料进行表征和检测，以观察DA和反向Diels-Alder（rDA）产物以及损伤对结构的影响。DMA/TMA研究确定不同纤维和固化温度对DA反应的影响对复合材料的机械性能，包括。继续研究使用流变学研究的预浸料，以验证自我愈合的效率，同时使用更传统的拉伸/压缩测试，以确定自我愈合的效率。除了研究固化和后固化制度对自愈效率的影响。