Controlled interfacial adhesion of Twaron® aramid fibres in composites by the finish formulation

Autor: Warawan Prasithphol, Shang-Lin Gao, Peter Gerard Akker, Edith Mäder, Pieter J. de Lange, Robert J. Young
Rok vydání: 2007
Předmět:
Zdroj: Composites Science and Technology. 67:2027-2035
ISSN: 0266-3538
Popis: In order to investigate the effect of oily finish components on the interphase strength of aramid-epoxy composites, Twaron® aramid yarn has been treated in a one step finish process with combinations of adhesion improving (epoxy-amine) components and processability improving (oily) components. Variations in the macroscopic composite properties (compression shear strength and transverse tensile strength) as a function of the amount of oil are very well predicted by micro-mechanical adhesion results from single filament pull out measurements and micro Raman spectroscopy. They can be explained by differences in the amount and distribution of epoxy, fixated to the yarn surface, shown by XPS, contact angle measurements and atomic force microscopy.
Databáze: OpenAIRE