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Author(s):	Prambauer, Martina; Burgstaller, Christoph; Eicher, Manuel; Hofmann, Helene
Title:	Die Verwendung von bioabbaubaren Polyestern in saisonalen Geotextilien
Abstract:	Saisonale Geotextilien werden in speziellen Anwendungsfällen eingesetzt, bei denen ein Abbau des Materials nach einer gewissen Zeit erwünscht ist. Hierbei handelt es sich meist um Begrünungshilfen und temporären Erosionsschutz. In dieser Arbeit wurden bioabbaubare Polyester verwendet, die als Ersatzmaterialien für konventionelle Kunststoffe in Geotextilien in Betracht gezogen werden können. Es wurden Fasern aus vier verschiedenen Biokunststoffen hergestellt und die mechanischen Eigenschaften mit PP-Fasern verglichen. Die Kurzzeitstabilität wurde über einen Schnellbewitterungstest untersucht, wobei Blendfasern, bestehend aus zwei verschiedenen Biokunststoffen, besonders vielversprechend abschnitten. Im Anschluss wurden die erzeugten Fasern zu Vliesen gepresst, um versuchsweise Geotextilien herzustellen. The use of biodegradable polyesters in seasonal geotextiles Seasonal geotextiles are used in specific applications, where material degradation is desired after a certain time period. Examples are geotextiles for revegetation or erosion control mats, which are only needed temporarily. In this work, biodegradable polyesters were used, which are a promising alternative to conventional plastics used in geotextiles. Four different bio-materials were used for fibre production and the results from mechanical testing were compared to PP fibres, which were produced the same way. The short-time stability was determined by an accelerated artificial weathering test. Here, blend fibres consisting of two different bio-plastics showed the most promising results. Furthermore, the produced bio-fibres where hot pressed to form fibre mats to obtain a small geotextile sample.
Source:	geotechnik 43 (2020), No. 1
Page/s:	26-30
Language of Publication:	German

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