Comprehensive Characterization of Crystalline Nanocellulose Reinforced Filaments for 3D-Printing

Crystalline nanocellulose (CNC) has recently been in the scientific community's focus as natural reinforcement material for polymers. In combination with recycled polypropylene, this yields a sustainable composite material with large potential for 3D-printing.

Crystalline nanocellulose (CNC) has recently been in the scientific community's focus as natural reinforcement material for polymers following the ubiquitous striving for green engineering and increased sustainability. Due to the combination of its high stiffness and low density, CNC displays a high specific modulus. In combination with recycled polypropylene (PP), this yields a sustainable high-strength nanocomposite material with large potential for fused filament fabrication (FFF). FFF is one of the main techniques for polymer additive manufacturing commonly known as 3D-printing. An air-bearing-based Modular Compact Rheometer (MCR) from Anton Paar was used for investigating the mechanical as well as the printing-relevant material properties of the novel nanocomposites.

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