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Neue Verfahrensansätze zur Beschlagbefestigung an Möbelteilen in Sandwichbauweise

Produktform: Buch

Verlag: Technische Uni Dresden, 195 Seiten

Erscheinungsdatum: 25.01.2017

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Einfluss des Papiers auf die Bildwiedergabe im Rollen- und Bogenoffsetdruck

Produktform: Buch

Verlag: Technische Uni Dresden, 143 Seiten

Erscheinungsdatum: 24.05.2017

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Tagungsband des 18. Holztechnologischen Kolloquiums Dresden, 12.-13. April 2018

Produktform: Buch

Verlag: Technische Uni Dresden, 268 Seiten

Erscheinungsdatum: 12.04.2018

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Jahresbericht 2019 Professur für Holztechnik und Faserwerkstofftechnik

Produktform: Buch / Einband - flex.(Paperback)

Verlag: Technische Uni Dresden, Auflage 1, 126 Seiten

Erscheinungsdatum: 28.09.2020

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Jahresbericht 2020 Professur für Holztechnik und Faserwerkstofftechnik

Produktform: Buch

Verlag: Technische Uni Dresden, Auflage 2021, 97 Seiten

Erscheinungsdatum: 18.10.2021

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Application of Poplar Bark Fibers from Short Rotation Plantation Trees in Production of Natural Fiber-Polymer Composites

Produktform: Buch / Einband - flex.(Paperback)


Growing demand and limited resources have encouraged industries to search for sustainable sources of raw materials. Different companies in wood industries are focusing on short and medium rotation plantations as their primary source of wood and fibers. This has led to substantial growth in the total areas of these plantations worldwide. It is predicted that more industries will change their production lines to fit this sustainable new resource. These plantations produce large quantities of by-products which is mostly in the form of bark chips. The sustainability in the production will be only met when the cascade utilization of the by-products is considered. In this work bark of poplar trees as the most common trees in plantations, in Germany, was characterized to provide information for the possible applications in the manufacturing of various fiber-based materials. Furthermore, bark fibers were used in the production of natural fiber polymer composites as the most flexible and youngest industry in wood and fiber related industries. Natural fiber polymer composites have already created substantial commercial markets in different sectors, such as in structural applications (decking, fencing, etc.) as well as automotive interior parts The structure of the bark of poplar trees (Max hybrid) from short rotation plantations were studied and bark fibers were extracted. The essential properties of the fibers including chemical composition, thermal behavior, fiber dimensions with the two mentioned industrial fiber production methods, density, and microfibril angle were investigated and reported in this research. Bark fiber polymer composites (BFPC) were produced, as the second and most important aim of the presented work. Two bio-based polymer matrices of polylactic acid (PLA) and cellulose propionate (CP) and a commodity polymer (polypropylene (PP)) were used in the production of the samples. Various properties of the produced composite, with regard to the potential application areas in indoor and outdoor products, were investigated. The studied properties included: tensile, bending, impact as mechanical properties, as well as melt flow index, water absorption, and fungal resistance. Regardless of the matrix polymer, BFPCs showed lower mechanical properties than the reference WPC samples but better water absorption and slower fungal growth rate. Modification with the application of coupling agent (Maleic anhydride grafted polypropylene (MAH-PP)) and mercerization with sodium hydroxide showed positive results in improving the mechanical properties of BFPCs. Overall, this research has provided fundamental information for application of bark of short rotation plantation trees in wood industries.

Verlag: Technische Uni Dresden, Auflage 1, 142 Seiten

Erscheinungsdatum: 03.02.2020

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Tagungsband des 20. Holztechnologischen Kolloquiums Dresden 28.-29. April 2022

Produktform: Buch

Verlag: Technische Uni Dresden, 163 Seiten

Erscheinungsdatum: 28.04.2022

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