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Cellulose nanocrystal-polyetherimide hybrid nanofibrous interleaves for enhanced interlaminar fracture toughness of carbon fibre/epoxy composites

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Cellulose nanocrystal-polyetherimide hybrid nanofibrous interleaves for enhanced interlaminar fracture toughness of carbon fibre/epoxy composites. / Wang, Jing; Pozegic, Thomas; Xu, Zhen; Nigmatullin, Rinat; Harniman, Robert; Eichhorn, Stephen J.

In: Composites Science and Technology, Vol. 182, 107744, 29.09.2019.

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@article{8f6a484125f04fb1b073d85ea776bb77,
title = "Cellulose nanocrystal-polyetherimide hybrid nanofibrous interleaves for enhanced interlaminar fracture toughness of carbon fibre/epoxy composites",
abstract = "The effect of electrospun cellulose nanocrystals (CNCs)-polyetherimide (PEI) hybrid nanofibrous mats on Mode I and Mode II interlaminar fracture toughness of unidirectional carbon/epoxy composite laminates is demonstrated. It is shown that the CNCs reinforced PEI nanofibrillar interleaves result in a ~28{\%} increase in Mode I initial fracture toughness values compared to neat PEI nanofibrous interleaves. Specifically, the interrelated micro- and nano-scale toughening mechanisms including carbon fibre bridging, fibre necking, fibre rupture with CNCs aggregates, and nanofibre rupture contributed to the fracture toughness improvements under Mode-I loading. Nano-scale mechanisms of shear hackles, and crack pinning by CNCs aggregates increased the Mode II fracture toughness up to ~3 kJ/m2 as a result of a 6 wt.{\%} CNCs reinforced PEI nanofibrillar mat interleaves. Interleaving laminated composites with electrospun CNCs-PEI hybrid nanofibrillar mats has been demonstrated as a novel and prospective strategy to strengthen and toughen interlaminar zones of carbon/epoxy composite laminates.",
keywords = "Cellulose nanocrystals, Electrospinning, Fracture toughness, Delamination",
author = "Jing Wang and Thomas Pozegic and Zhen Xu and Rinat Nigmatullin and Robert Harniman and Eichhorn, {Stephen J.}",
year = "2019",
month = "9",
day = "29",
doi = "10.1016/j.compscitech.2019.107744",
language = "English",
volume = "182",
journal = "Composites Science and Technology",
issn = "0266-3538",
publisher = "Elsevier",

}

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TY - JOUR

T1 - Cellulose nanocrystal-polyetherimide hybrid nanofibrous interleaves for enhanced interlaminar fracture toughness of carbon fibre/epoxy composites

AU - Wang, Jing

AU - Pozegic, Thomas

AU - Xu, Zhen

AU - Nigmatullin, Rinat

AU - Harniman, Robert

AU - Eichhorn, Stephen J.

PY - 2019/9/29

Y1 - 2019/9/29

N2 - The effect of electrospun cellulose nanocrystals (CNCs)-polyetherimide (PEI) hybrid nanofibrous mats on Mode I and Mode II interlaminar fracture toughness of unidirectional carbon/epoxy composite laminates is demonstrated. It is shown that the CNCs reinforced PEI nanofibrillar interleaves result in a ~28% increase in Mode I initial fracture toughness values compared to neat PEI nanofibrous interleaves. Specifically, the interrelated micro- and nano-scale toughening mechanisms including carbon fibre bridging, fibre necking, fibre rupture with CNCs aggregates, and nanofibre rupture contributed to the fracture toughness improvements under Mode-I loading. Nano-scale mechanisms of shear hackles, and crack pinning by CNCs aggregates increased the Mode II fracture toughness up to ~3 kJ/m2 as a result of a 6 wt.% CNCs reinforced PEI nanofibrillar mat interleaves. Interleaving laminated composites with electrospun CNCs-PEI hybrid nanofibrillar mats has been demonstrated as a novel and prospective strategy to strengthen and toughen interlaminar zones of carbon/epoxy composite laminates.

AB - The effect of electrospun cellulose nanocrystals (CNCs)-polyetherimide (PEI) hybrid nanofibrous mats on Mode I and Mode II interlaminar fracture toughness of unidirectional carbon/epoxy composite laminates is demonstrated. It is shown that the CNCs reinforced PEI nanofibrillar interleaves result in a ~28% increase in Mode I initial fracture toughness values compared to neat PEI nanofibrous interleaves. Specifically, the interrelated micro- and nano-scale toughening mechanisms including carbon fibre bridging, fibre necking, fibre rupture with CNCs aggregates, and nanofibre rupture contributed to the fracture toughness improvements under Mode-I loading. Nano-scale mechanisms of shear hackles, and crack pinning by CNCs aggregates increased the Mode II fracture toughness up to ~3 kJ/m2 as a result of a 6 wt.% CNCs reinforced PEI nanofibrillar mat interleaves. Interleaving laminated composites with electrospun CNCs-PEI hybrid nanofibrillar mats has been demonstrated as a novel and prospective strategy to strengthen and toughen interlaminar zones of carbon/epoxy composite laminates.

KW - Cellulose nanocrystals

KW - Electrospinning

KW - Fracture toughness

KW - Delamination

UR - http://www.scopus.com/inward/record.url?scp=85069569652&partnerID=8YFLogxK

U2 - 10.1016/j.compscitech.2019.107744

DO - 10.1016/j.compscitech.2019.107744

M3 - Article

VL - 182

JO - Composites Science and Technology

JF - Composites Science and Technology

SN - 0266-3538

M1 - 107744

ER -