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Water detection and quantification in polymers and in CFRP using a non-destructive microwave technique

: Hernandez-Edo, E.; Hoffmann, M.; Amkreutz, M.; Mayer, B.

TH Aachen -RWTH-, Institut für Schweißtechnik und Fügetechnik -ISF-:
5. Doktorandenseminar Klebtechnik 2014 : Vorträge der gleichnamigen Veranstaltung in Aachen am 22. und 23. September 2014
Düsseldorf: DVS Media, 2016 (DVS-Berichte 313)
ISBN: 978-3-945023-54-9
ISBN: 3-945023-54-8
Doktorandenseminar Klebtechnik <5, 2014, Aachen>
Conference Paper
Fraunhofer IFAM ()

A basic aspect of a component's quality is the water content in the material. The presence of water in polymer materials like polyamide or epoxy or in composite materials like carbon fiber reinforced polymer (CFRP) can be an issue in many applications (e.g. adhesive bonding, extrusion processes, CFRP repairing processes). Only a fast and accurate water measurement technique suitable for on-line or laboratory application ensures a high product quality in combination with low expenditure. In this communication, it is reported how a non-destructive and portable device based on a microwave resonator technique accurately detects and quantifies water in the abovementioned polymers.