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Manufacturing of glass fibre/PBT-spincom yarns for innovative composite processing

: Scheffler, C.; Hiller, J.; Krüger, M.; Haase, R.; Weise, D.; Garray, D.; Spickenheuer, A.

Fulltext ()

European Society for Composite Materials -ESCM-:
18th European Conference on Composite Materials, ECCM 2018. Online resource : Athens, Greece, June 24-28, 2018
Athens, 2018
ISBN: 978-151089693-2
8 pp.
European Conference on Composite Materials (ECCM) <18, 2018, Athens>
Conference Paper, Electronic Publication
Fraunhofer IWU ()

The aim of this work was the development of GF (glass fibre)/ PBT (polybutylene therephthalate) SpinCOM yarns that are commingled online during the spinning process using sizing formulations that enable textile processability as well as high fibre-matrix interaction. Epoxy- and polyurethane-based sizings have been applied and were evaluated by micromechanical (single fibre pull-out test) and macromechanical (transverse tensile test of unidirectional plates) testing. Finally, a material combination was selected to be processed by Tailored Fiber Placement (TFP) to textile preforms with a variable-axial, load adapted fiber design. These preforms were consolidated in a low energy and resource consuming process using novel light and low cost forming tools produced by incremental sheet metal forming (ISF) technology. Finally, a low cost solution for thermal processing even for complex shaped TPC parts is demonstrated by the geometry of a bicycle saddle.