Vorschaubild nicht verfügbar
Publikationstyp
Wissenschaftlicher Artikel
Erscheinungsjahr
2021
The impact of water released from boehmite nanoparticles during curing in epoxy-based nanocomposites
The impact of water released from boehmite nanoparticles during curing in epoxy-based nanocomposites
Autor:innen
Herausgeber
Quelle
Journal of applied polymer science
39 (2021), Heft 138 vom 21.5.2021
39 (2021), Heft 138 vom 21.5.2021
Schlagwörter
Hydrolyse, Nanomaterialien, Nanopartikel, Polymer, Verbundwerkstoff
Forschungskennzahl (FKZ)
Verbundene Publikation
Zitation
WANIEK, Tassilo, Ulrike BRAUN und Dorothee SIELBERNAGL, 2021. The impact of water released from boehmite nanoparticles during curing in epoxy-based nanocomposites. Journal of applied polymer science [online]. 2021. Bd. 39 (2021), Heft 138 vom 21.5.2021. DOI 10.60810/openumwelt-1576. Verfügbar unter: https://openumwelt.de/handle/123456789/3205
Zusammenfassung englisch
The enhancing effect on mechanical properties of boehmite (y-AlOOH)nanoparticles (BNP) in epoxy-based nanocomposites on the macroscopic scaleencouraged recent research to investigate the micro- and nanoscopic proper-ties. Several studies presented different aspects relatable to an alteration of theepoxy polymer network formation by the BNP with need for further experi-ments to identify the mode of action. With FTIR-spectroscopic methods thisstudy identifies interactions of the BNP with the epoxy polymer matrix duringthe curing process as well as in the cured nanocomposite. The data reveals thatnot the BNP themselves, but the water released from them strongly influencesthe curing process by hydrolysis of the anhydride hardener or protonation ofthe amine accelerator. The changes of the curing processes are discussed indetail. The changes of the curing processes enable new explanation for thechanged material properties by BNP discussed in recent research like alowered glass transition temperature region (Tg) and an interphase formation. © Authors