Delivering interlaminar reinforcement in composites through electrospun nanofibres

Pozegic, T.R., King, S.G., Fotouhi, M. , Stolojan, V., Silva, S.R.P. and Hamerton, I. (2019) Delivering interlaminar reinforcement in composites through electrospun nanofibres. Advanced Manufacturing: Polymer and Composites Science, 5(4), pp. 155-171. (doi:10.1080/20550340.2019.1665226)

[img]
Preview
Text
204344.pdf - Published Version
Available under License Creative Commons Attribution.

8MB

Abstract

Electrospun nonwoven veils comprising thermoplastic fibres (average diameter 400–600 nm) based on polysulfone (PSU), polyamide (PA-6,6), and polyetherimide (PEI) have been fabricated and used as interlaminar reinforcements in carbon fibre composites containing a commercial epoxy resin (8552/IM7). Samples were tested for their interlaminar properties and improvements were observed in the initial mode I interlaminar toughness of 30% (PA-6,6), 36% (PEI), and 44% (PSU), while improvements of 7% (PSU) and 8% (PEI) were observed in the propagation of the mode I interlaminar toughness. A reduction of 11% was observed for the propagation of the mode I interlaminar toughness for PA-6,6. Post-testing analysis of the cross-section and the fracture surface revealed that the crack front avoids the reinforcement significantly for PA-6,6. For mode II, however, this failure mechanism leads to improvements of 30% in interlaminar toughness for the PA-6,6, whereas the other reinforcements display negligible (PEI) and 31% reduction (PSU) interlaminar toughness.

Item Type:Articles
Additional Information:The authors would like to thank Robert Worboys (Bristol Composites Institute (ACCIS), University of Bristol) and the EPSRC, United Kingdom, Grant Numbers: EP/N006372/1, EP/I02946X/1 and EP/L02263X/1 for funding this research. SEM studies were carried out in the Chemical Imaging Facility, University of Bristol with equipment funded by EPSRC under Grant “Atoms to Applications” (EP/K035746/1).
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Fotouhi, Dr Mohammad
Authors: Pozegic, T.R., King, S.G., Fotouhi, M., Stolojan, V., Silva, S.R.P., and Hamerton, I.
College/School:College of Science and Engineering > School of Engineering > Aerospace Sciences
Journal Name:Advanced Manufacturing: Polymer and Composites Science
Publisher:Taylor and Francis
ISSN:2055-0340
ISSN (Online):2055-0359
Published Online:19 September 2019
Copyright Holders:Copyright © 2019 The Authors
First Published:First published in Advanced Manufacturing: Polymer and Composites Science 5(4):155-171
Publisher Policy:Reproduced under a Creative Commons License

University Staff: Request a correction | Enlighten Editors: Update this record