The incorporation of small amounts of high-stiffness, high-aspect-ratio nanometer-sized fillers into polymers is a design approach that has rapidly emerged as a broadly exploited framework for the creation of new materials with tailored mechanical properties. Crystalline cellulose nanocrystals (CNCs) are attracting significant interest in this context, mainly due to their intriguing mechanical properties and the abundance of cellulose in the biomass. These nanocomposites show dynamic mechanical behaviour, which is achieved through regulation of the molecular interactions, and therewith the stress transfer, between adjacent nanocrystals. We will present our experimental research, targeting the design and processing of 3D printable polymer/CNC for implantation into the human body. We investigate how different processing methods affect the morphology and mechanical properties of nanocomposites made from polyurethane and renewable fillers. Comparisons are made between traditionally made solution cast samples, and materials were printed into implantable meshes.

Stimuli responsive materials for personalized implants

255th National Meeting (2018)

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