New Applications - 3D Mouldings From Cellulose Fibres, 2016 Pulping, Engineering, Environmental, Recycling, Sustainability (PEERS) Conference Proceedings

In view of the need to generate higher added values out of cellulose fibres the Professorship of Technology, TU Dresden initiated different projects aiming at exploiting new potential applications predominantly in lightweight construction, automotive industry and possibly as well in medical technology. Besides the production of conventional flat and two dimensional papers or paperboard it was the objective to develop 3-dimensional cellulose mouldings and to investigate their potentials and limits, especially in terms of strength. Therefore highly fibrillated cellulose pulps – developed in collaboration with a mill for speciality papers – were adjusted to shaping technologies like Pressure Filtration or Thermo-Pressing aiming at producing test specimens for strength analyses. The resulting specimens (small tubes and shouldered test bars) were tested in standardized methods. It was found that those specimens and even 3D mouldings consisting to 100 % of natural fibres achieve Young’s moduli up to 11.4 GPa and tensile stresses up to 89.0 MPa which is superior to all polymers and most bio-derived composites. Additionally the dense structure of this material (density = approx.1.5 g/cm³) results in excellent barrier properties against oxygen and grease as well as good electrical insulation resistance. First contacts indicate high interest in this material which motivates to further optimize production technologies in new R&D projects for industrial applications. 

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Author: René Kleinert, Harald Grossmann, and Tilo Gailat
New Applications - 3D Mouldings From Cellulose Fibres, 2016
New Applications - 3D Mouldings From Cellulose Fibres, 2016 PEERS

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