Interfacial shearing strength and reinforcing mechanisms of an epoxy composite reinforced using a carbon nanotube/carbon fiber hybrid

Zhang, Fuhua; Wang, Rongguo; He, Xiaodong; Wang, Chao; Ren, Li-Ning

doi:10.1007/s10853-009-3484-x

Cited by 165 publications

(77 citation statements)

References 14 publications

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“…Generally, the methods of enhancing interfacial bonding strength can be classified into two fundamental categories: modifying the fibers and applying a toughened resin [11][12][13]. The interfacial characteristics between fiber and resin depend mainly on the fiber surface.…”

Section: Introductionmentioning

confidence: 99%

Reusing recycled fibers in high-value fiber-reinforced polymer composites: Improving bending strength by surface cleaning

Shi

Bao

Kobayashi

et al. 2012

Composites Science and Technology

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Section: Introductionmentioning

confidence: 99%

Reusing recycled fibers in high-value fiber-reinforced polymer composites: Improving bending strength by surface cleaning

Shi

Bao

Kobayashi

et al. 2012

Composites Science and Technology

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“…Yang et al [20] report values in excess of 80 MPa for nanotube treated carbon fibres, using pull-out and fragmentation tests. Zhang et al [4] report values in excess of 100 MPa. Such high values seem inconceivable given that they vastly exceed the typical shear yield strength of an epoxy resin.…”

Section: Raman Spectroscopy Of Single Fibres and Model Compositesmentioning

confidence: 99%

“…A number of groups have attempted to graft carbon nanotubes to the surface of carbon fibres [1][2][3][4] with the aim of improving the interface with a resin material. Of particular note, the interface between carbon fibres and a polymer matrix material has been recently reported to be enhanced by using carbon nanotubes (CNT) [5].…”

Section: Introductionmentioning

confidence: 99%

Hybrid carbon fibre–carbon nanotube composite interfaces

Jin

Young

Eichhorn

2014

Composites Science and Technology

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Both low and high modulus carbon fibres are coated with carboxylated single wall carbon nanotubes (SWNTs). It is shown that it is then possible to follow, for the first time, the local deformation of low modulus carbon fibres and composite interfaces using Raman spectroscopy. By deforming coated single carbon fibre filaments in tension, and following the shift in the position of a band located at ~2660 cm -1 (2D band) it is possible to calibrate the local stress state of a fibre embedded in an epoxy resin. To follow the interface between the fibres and the epoxy resin, a thin film model composite is used. Point-to-point variation of stress along a single fibre, both inside and outside the resin, is recorded and stress transfer models are used to determine the 2 fibres due to an increased surface area as a result of the nanotubes and additional bonding caused due to the presence of carboxylate groups.

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“…Zhang et al [36] suggested the origin of the improvements is related to improvements in the chemical bonding, van der Waals binding and mechanical interlocking. These improvements in IFSS go beyond those typically observed by roughening the surface of the fibres [37], as this usually only result in surface area enhancements by one order of magnitude, compared with typical enhancements of 300 [38] to 750 [9] for fuzzy fibres.…”

Section: Single Tow Pull-out Testsmentioning

confidence: 99%

Development of sizing-free multi-functional carbon fibre nanocomposites

Pozegic

Jayawardena

Chen

et al. 2016

Composites Part A: Applied Science and Manufacturing

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General rightsThis document is made available in accordance with publisher policies. Please cite only the published version using the reference above. Full terms of use are available: http://www.bristol.ac.uk/pure/about/ebr-terms AbstractHigh quality multi-walled carbon nanotubes (CNTs) grown at high density using a low temperature growth method are used as an alternative material to polymer sizing and is utilised in a series of epoxy composites reinforced with carbon fibres to provide improved physical and electrical properties. We report improvements for sizing-sensitive mechanical and physical properties, such as the interfacial adhesion, shear properties and handling of the fibres, whilst retaining resin-infusion capability. Following fibre volume fraction normalisation, the carbon nanotube-modified carbon fibre composite offers improvements of 146 % increase in Young's modulus; 20% increase in ultimate shear stress; 74 % increase in shear chord modulus and an 83 % improvement in the initial fracture toughness. The addition of CNTs imparts electrical functionalisation to the composite, enhancements in the surface direction are 400%, demonstrating a suitable route to sizing-free composites with enhanced mechanical and electrical functionality.

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Interfacial shearing strength and reinforcing mechanisms of an epoxy composite reinforced using a carbon nanotube/carbon fiber hybrid

Cited by 165 publications

References 14 publications

Reusing recycled fibers in high-value fiber-reinforced polymer composites: Improving bending strength by surface cleaning

Reusing recycled fibers in high-value fiber-reinforced polymer composites: Improving bending strength by surface cleaning

Hybrid carbon fibre–carbon nanotube composite interfaces

Development of sizing-free multi-functional carbon fibre nanocomposites

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