Multi-Matrix Continuously-Reinforced Composites: alternative hybrids for structural, functional and sustainable applications

Composites exhibit a well-known set of problems – susceptibility to damage at severe stress concentrations, poor through-thickness properties, difficulties with repair. All these and many other problems boil down to the performance of matrices. There are different approaches to address these problems, many of them resolve to the incorporation of additional reinforcements at various scales. In this talk we will discuss an alternative approach: Multi-Matrix Continuously-Reinforced Composites (MMCRC). In this form of hybrids, the continuous reinforcement integrate domains with dissimilar matrices tailored locally to specific structural or functional requirements. The locality allows finding an optimum balance between processing constraints and composite performance. We will discuss rationales for creating thermosetting MMCRC hybridised with vitrimers, metals, fast-curing or multi-functional resins and consider applications of MMCRC in composites processing, service, and repair.