Materials that can recover properties following mechanical failure are desirable, as they offer increased durability and safety. Mendable materials are particularly desirable for load-bearing applications in which material failure is costly and dangerous. Inspiration for remendable materials comes from nature and there is a great interest in developing biomimetic processes by a number of functionalities can be applied to synthetic materials. Biomimicry in remendable materials has led to composites with vascular networks that "bleed" resin when a crack forms.
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