Novel co-bonded thermoplastic elastomer-epoxy/glass hybrid composites: The effect of cure temperature on the interphase morphology

Gusthavo Ribeiro Salomão, Hubert Gojzewski, Ozan Erartsin, Ismet Baran*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

3 Citations (Scopus)
63 Downloads (Pure)

Abstract

High adhesion strength in hybrid composites is a decisive factor for their widespread use in lightweight structures. The bond strength of co-bonded thermoplastic-thermoset composites is largely influenced by the interphase thickness and morphology, which are controlled by the cure and diffusion kinetics. Hence, this study aims to characterize the interphase of a hybrid composite comprised of thermoplastic elastomer (TPE) co-bonded to glass fiber reinforced epoxy (epoxy/glass) by correlating the cure temperature with the interphase thickness and morphology. The interphase thickness is analyzed with light microscopy, while the morphology is studied with scanning electron microscopy (SEM) and atomic force microscopy (AFM) employing the PeakForce quantitative nanomechanical mapping mode (PF-QNM). The relationship between interphase thickness and cure temperature is investigated by assessing the diffusion and cure kinetics with a rheometer. It was observed that phase separation took place at the interphase, while the interphase thickness and morphology depended on cure temperature.
Original languageEnglish
Article number107736
JournalPolymer testing
Volume115
Early online date11 Aug 2022
DOIs
Publication statusPublished - Nov 2022

Keywords

  • UT-Hybrid-D

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