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ISBN 9783843933346

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978-3-8439-3334-6, Reihe Ingenieurwissenschaften

Veronika Anna Bühler
Gradual Impregnation during the Production of Thermoplastic Composites (Band 35)

207 Seiten, Dissertation Technische Universität München (2017), Softcover, A5

Zusammenfassung / Abstract

Pre-impregnated intermediate materials based on thermoplastic polymer matrices are increasingly used for manufacturing CFRP structures. However, impregnation of the fiber with the polymer is a time-consuming process due to the high melt viscosity of thermoplastics. This leads to high manufacturing cost. This thesis develops and characterizes partially impregnated tapes. Process-induced effects on the properties of the polymer and composite are investigated as the tapes are impregnated during the subsequent heating and consolidation processes required to produce a component. By modifying the matrix with additives, effects on the viscosity due to degradation can be prevented and the operational throughput can be enhanced.