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Gewählte Master / Diploma Thesis:

Franziska Haller (2020): Mehrlagiger Papierverbundwerkstoff.
Master / Diploma Thesis - Institut für Holztechnologie und Nachwachsende Rohstoffe, BOKU-Universität für Bodenkultur, pp 44. UB BOKU obvsg

Data Source: ZID Abstracts
Abstract:
New developments pose great challenges for the wood and paper industry. In order to economize on resources, new knowledge about materials and the most efficient use of waste materials is needed. In the course of this work, a multilayer paper composite is to be produced and tested for thermal and mechanical properties. The highest possible content of the by-product "fines" in the paper layers is to be achieved, without causing any restrictions in processability. Latex, lignosulfonates and chitosan are used in the polymer layer. The desired final product is a material which is firm at room temperature and which can be deformed when heat and pressure is applied. Fines should ensure the strength, the polymer should provide the flexibility. To determine the properties of the material, tensile and flexural tests using a universal testing machine and dynamic mechanical analysis (DMA) are used. The best results could be achieved at a fines content of 50%. As described in the literature, the addition of fines to the unfibrillated pulp increased the density and strength of the paper. In the composite all polymers could increase the ductility of the material, whereby the characterization of the individual polymers due to their natural origin and associated irregularity did not succeed unambiguously. First thermoforming experiments resulted in promising specimen.

Beurteilende(r): Gindl-Altmutter Wolfgang
1.Mitwirkender: Winter Armin

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