Möhl, ClaudiaWeimer, TimoCaliskan, MetinBaz, StephanBauder, Hans-JürgenGresser, Götz T.2022-11-092022-11-0920222073-43601823744567http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-ds-125184http://elib.uni-stuttgart.de/handle/11682/12518http://dx.doi.org/10.18419/opus-12499Increasing resource consumption and a growing amount of textile waste increase the importance of a circular economy and recycling in the fashion and apparel industry. Environmentally friendly bio-based composites made from cellulosic fibres obtained from textile waste, and polymers based on renewable raw materials present a possible solution. In this study, the development of textile semi-finished products based on medium-to-long cotton and flax fibres obtained from textile waste in combination with a bio-based thermoplastic matrix for lightweight applications is investigated. For the production of natural fibre-polylactide hybrid yarns, fibre slivers with improved fibre orientation and blending are produced. Subsequently, quasi-unidirectional woven fabrics are produced and consolidated into bio-based composites. Textile and mechanical properties of hybrid yarns as well as bio-composites are analysed with regard to the influence of fibre length, fibre distribution in the yarn, yarn structure and fibre volume content. The results show that the production of bio-based semi-finished products can be a potential way for upcycling textile waste.eninfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/4.0/670article2022-03-23