Electrospinning core-shell nanofibers for interfacial toughening and self-healing of carbon-fiber/epoxy composites

Xiang Fa Wu, Arifur Rahman, Zhengping Zhou, David D. Pelot, Suman Sinha-Ray, Bin Chen, Scott Payne, Alexander Yarin

Research output: Contribution to journalArticle

78 Citations (Scopus)

Abstract

This article reports a novel hybrid multiscale carbon-fiber/epoxy composite reinforced with self-healing core-shell nanofibers at interfaces. The ultrathin self-healing fibers were fabricated by means of coelectrospinning, in which liquid dicyclopentadiene (DCPD) as the healing agent was enwrapped into polyacrylonitrile (PAN) to form core-shell DCPD/PAN nanofibers. These core-shell nanofibers were incorporated at interfaces of neighboring carbon-fiber fabrics prior to resin infusion and formed into ultrathin self-healing interlayers after resin infusion and curing. The core-shell DCPD/PAN fibers are expected to function to self-repair the interfacial damages in composite laminates, e.g., delamination. Wet layup, followed by vacuum-assisted resin transfer molding (VARTM) technique, was used to process the proof-of-concept hybrid multiscale self-healing composite. Three-point bending test was utilized to evaluate the self-healing effect of the core-shell nanofibers on the flexural stiffness of the composite laminate after predamage failure. Experimental results indicate that the flexural stiffness of such novel self-healing composite after predamage failure can be completely recovered by the self-healing nanofiber interlayers. Scanning electron microscope (SEM) was utilized for fractographical analysis of the failed samples. SEM micrographs clearly evidenced the release of healing agent at laminate interfaces and the toughening and self-healing mechanisms of the core-shell nanofibers. This study expects a family of novel high-strength, lightweight structural polymer composites with self-healing function for potential use in aerospace and aeronautical structures, sports utilities, etc.

Original languageEnglish
Pages (from-to)1383-1393
Number of pages11
JournalJournal of Applied Polymer Science
Volume129
Issue number3
DOIs
Publication statusPublished - 2013 Aug 5
Externally publishedYes

Fingerprint

dicyclopentadiene
Toughening
Electrospinning
Nanofibers
Carbon fibers
Polyacrylonitriles
Composite materials
Laminates
Electron microscopes
Resins
Stiffness
Scanning
Resin transfer molding
Fibers
Bending tests
Sports
Delamination
Curing
carbon fiber
Polymers

Keywords

  • electrospinning
  • fibers
  • mechanical properties
  • nanostructured polymers

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics
  • Surfaces, Coatings and Films
  • Chemistry(all)

Cite this

Electrospinning core-shell nanofibers for interfacial toughening and self-healing of carbon-fiber/epoxy composites. / Wu, Xiang Fa; Rahman, Arifur; Zhou, Zhengping; Pelot, David D.; Sinha-Ray, Suman; Chen, Bin; Payne, Scott; Yarin, Alexander.

In: Journal of Applied Polymer Science, Vol. 129, No. 3, 05.08.2013, p. 1383-1393.

Research output: Contribution to journalArticle

Wu, XF, Rahman, A, Zhou, Z, Pelot, DD, Sinha-Ray, S, Chen, B, Payne, S & Yarin, A 2013, 'Electrospinning core-shell nanofibers for interfacial toughening and self-healing of carbon-fiber/epoxy composites', Journal of Applied Polymer Science, vol. 129, no. 3, pp. 1383-1393. https://doi.org/10.1002/app.38838
Wu, Xiang Fa ; Rahman, Arifur ; Zhou, Zhengping ; Pelot, David D. ; Sinha-Ray, Suman ; Chen, Bin ; Payne, Scott ; Yarin, Alexander. / Electrospinning core-shell nanofibers for interfacial toughening and self-healing of carbon-fiber/epoxy composites. In: Journal of Applied Polymer Science. 2013 ; Vol. 129, No. 3. pp. 1383-1393.
@article{04861152a0d14e2697704d4e99f564ef,
title = "Electrospinning core-shell nanofibers for interfacial toughening and self-healing of carbon-fiber/epoxy composites",
abstract = "This article reports a novel hybrid multiscale carbon-fiber/epoxy composite reinforced with self-healing core-shell nanofibers at interfaces. The ultrathin self-healing fibers were fabricated by means of coelectrospinning, in which liquid dicyclopentadiene (DCPD) as the healing agent was enwrapped into polyacrylonitrile (PAN) to form core-shell DCPD/PAN nanofibers. These core-shell nanofibers were incorporated at interfaces of neighboring carbon-fiber fabrics prior to resin infusion and formed into ultrathin self-healing interlayers after resin infusion and curing. The core-shell DCPD/PAN fibers are expected to function to self-repair the interfacial damages in composite laminates, e.g., delamination. Wet layup, followed by vacuum-assisted resin transfer molding (VARTM) technique, was used to process the proof-of-concept hybrid multiscale self-healing composite. Three-point bending test was utilized to evaluate the self-healing effect of the core-shell nanofibers on the flexural stiffness of the composite laminate after predamage failure. Experimental results indicate that the flexural stiffness of such novel self-healing composite after predamage failure can be completely recovered by the self-healing nanofiber interlayers. Scanning electron microscope (SEM) was utilized for fractographical analysis of the failed samples. SEM micrographs clearly evidenced the release of healing agent at laminate interfaces and the toughening and self-healing mechanisms of the core-shell nanofibers. This study expects a family of novel high-strength, lightweight structural polymer composites with self-healing function for potential use in aerospace and aeronautical structures, sports utilities, etc.",
keywords = "electrospinning, fibers, mechanical properties, nanostructured polymers",
author = "Wu, {Xiang Fa} and Arifur Rahman and Zhengping Zhou and Pelot, {David D.} and Suman Sinha-Ray and Bin Chen and Scott Payne and Alexander Yarin",
year = "2013",
month = "8",
day = "5",
doi = "10.1002/app.38838",
language = "English",
volume = "129",
pages = "1383--1393",
journal = "Journal of Applied Polymer Science",
issn = "0021-8995",
publisher = "John Wiley and Sons Inc.",
number = "3",

}

TY - JOUR

T1 - Electrospinning core-shell nanofibers for interfacial toughening and self-healing of carbon-fiber/epoxy composites

AU - Wu, Xiang Fa

AU - Rahman, Arifur

AU - Zhou, Zhengping

AU - Pelot, David D.

AU - Sinha-Ray, Suman

AU - Chen, Bin

AU - Payne, Scott

AU - Yarin, Alexander

PY - 2013/8/5

Y1 - 2013/8/5

N2 - This article reports a novel hybrid multiscale carbon-fiber/epoxy composite reinforced with self-healing core-shell nanofibers at interfaces. The ultrathin self-healing fibers were fabricated by means of coelectrospinning, in which liquid dicyclopentadiene (DCPD) as the healing agent was enwrapped into polyacrylonitrile (PAN) to form core-shell DCPD/PAN nanofibers. These core-shell nanofibers were incorporated at interfaces of neighboring carbon-fiber fabrics prior to resin infusion and formed into ultrathin self-healing interlayers after resin infusion and curing. The core-shell DCPD/PAN fibers are expected to function to self-repair the interfacial damages in composite laminates, e.g., delamination. Wet layup, followed by vacuum-assisted resin transfer molding (VARTM) technique, was used to process the proof-of-concept hybrid multiscale self-healing composite. Three-point bending test was utilized to evaluate the self-healing effect of the core-shell nanofibers on the flexural stiffness of the composite laminate after predamage failure. Experimental results indicate that the flexural stiffness of such novel self-healing composite after predamage failure can be completely recovered by the self-healing nanofiber interlayers. Scanning electron microscope (SEM) was utilized for fractographical analysis of the failed samples. SEM micrographs clearly evidenced the release of healing agent at laminate interfaces and the toughening and self-healing mechanisms of the core-shell nanofibers. This study expects a family of novel high-strength, lightweight structural polymer composites with self-healing function for potential use in aerospace and aeronautical structures, sports utilities, etc.

AB - This article reports a novel hybrid multiscale carbon-fiber/epoxy composite reinforced with self-healing core-shell nanofibers at interfaces. The ultrathin self-healing fibers were fabricated by means of coelectrospinning, in which liquid dicyclopentadiene (DCPD) as the healing agent was enwrapped into polyacrylonitrile (PAN) to form core-shell DCPD/PAN nanofibers. These core-shell nanofibers were incorporated at interfaces of neighboring carbon-fiber fabrics prior to resin infusion and formed into ultrathin self-healing interlayers after resin infusion and curing. The core-shell DCPD/PAN fibers are expected to function to self-repair the interfacial damages in composite laminates, e.g., delamination. Wet layup, followed by vacuum-assisted resin transfer molding (VARTM) technique, was used to process the proof-of-concept hybrid multiscale self-healing composite. Three-point bending test was utilized to evaluate the self-healing effect of the core-shell nanofibers on the flexural stiffness of the composite laminate after predamage failure. Experimental results indicate that the flexural stiffness of such novel self-healing composite after predamage failure can be completely recovered by the self-healing nanofiber interlayers. Scanning electron microscope (SEM) was utilized for fractographical analysis of the failed samples. SEM micrographs clearly evidenced the release of healing agent at laminate interfaces and the toughening and self-healing mechanisms of the core-shell nanofibers. This study expects a family of novel high-strength, lightweight structural polymer composites with self-healing function for potential use in aerospace and aeronautical structures, sports utilities, etc.

KW - electrospinning

KW - fibers

KW - mechanical properties

KW - nanostructured polymers

UR - http://www.scopus.com/inward/record.url?scp=84877584014&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84877584014&partnerID=8YFLogxK

U2 - 10.1002/app.38838

DO - 10.1002/app.38838

M3 - Article

VL - 129

SP - 1383

EP - 1393

JO - Journal of Applied Polymer Science

JF - Journal of Applied Polymer Science

SN - 0021-8995

IS - 3

ER -