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Resistance of glass fibre reinforced polyamide 6.6 materials to automotive cooling fluids: an analytical method for lifetime prediction

  • Abstract Two types (with and without a hydrolysis stabilizer) of polyamide 6.6 (PA6.6) reinforced with 30% w/w glass fibres were examined against the influence of automotive cooling fluids, e.g. ethylene glycol aqueous solutions. The overall goal was to find a methodology to compare the performance of PA6.6 materials against the impacts of the hydrolysis environment. The stabilizer effect on the hydrolytic resistance of the materials was assessed using tensile tests according to ISO 527, and their strain‐at‐break values were evaluated in more detail. The degradation mechanism of both PA types was monitored by infrared spectroscopy and SEM. The material lifetime was described by the Arrhenius equation. The results show that the hydrolysis stabilizer operates effectively at low temperature but exhibits weak performance above 130 °C, which is explained by faster consumption of the stabilizing agent. © 2021 The Authors. Polymer International published by John Wiley & Sons Ltd on behalf of Society of Industrial Chemistry.
Metadaten
Verfasserangaben:Konstantina Harrass, Sebastian Mauer, Roumen Tsekov
URN:urn:nbn:de:hbz:832-epub4-20040
DOI:https://doi.org/10.1002/pi.6323
Titel des übergeordneten Werkes (Englisch):Polymer International
Verlag:John Wiley & Sons, Ltd.
Verlagsort:Chichester, UK
Dokumentart:Wissenschaftlicher Artikel
Sprache:Englisch
Datum der Veröffentlichung:28.05.2022
Datum der Freigabe:27.06.2022
GND-Schlagwort:Hydrolyse
Freies Schlagwort / Tag:Equation; Hydrolysis; Material Lifetime; Polyamide 6.6 Reinforced with 30% w/w Glass Fibres; Tensile Strain‐at‐Break
Jahrgang:71
Ausgabe / Heft:6
Seitenzahl:10
Fakultäten und Zentrale Einrichtungen:Informatik und Ingenieurwissenschaften (F10) / Fakultät 10 / Institut Allgemeiner Maschinenbau
DDC-Sachgruppen:500 Naturwissenschaften und Mathematik
Lizenz (Deutsch):License LogoCreative Commons - CC BY-NC-ND - Namensnennung - Nicht kommerziell - Keine Bearbeitungen 4.0 International