Electrophoretic deposition of aramid nanofibers on carbon fibers for highly enhanced interfacial adhesion at low content

Jea Uk Lee, Byeongho Park, Byeong-Su Kim, Dae Ryung Bae, Wonoh Lee

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Here, an anodic electrophoretic deposition was adopted to facilitate the large-scale uniform coating of nano-fillers onto carbon fibers to enhance the interfacial properties between carbon fibers and epoxy matrix. As interface-reinforcing materials, aramid nanofibers were introduced because of their superior mechanical properties and epoxy matrix-friendly functional groups. Furthermore, aramid nanofibers can be readily coated on carbon fibers via electrophoretic deposition because they are negatively-charged in solution with high electrical mobility. Finally, aramid nanofiber-coated carbon fibers showed significantly improved interfacial properties such as higher surface free energy and interfacial shear strengths (39.7% and 34.9% increases, respectively) than those of a pristine carbon fiber despite a very small amount of embedding (0.025 wt% of aramid nanofibers in a carbon fiber), and the short beam strength of the laminated composite prepared with the aramid nanofiber-coated carbon fibers was also improved by 17.0% compared to a non-modified composite.

Original languageEnglish
Pages (from-to)482-489
Number of pages8
JournalComposites Part A: Applied Science and Manufacturing
Volume84
DOIs
Publication statusPublished - 2016 May 1

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Nanofibers
Carbon fibers
Adhesion
Laminated composites
carbon fiber
Shear strength
Functional groups
Free energy
Fillers
Coatings
Mechanical properties
Composite materials

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Mechanics of Materials

Cite this

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title = "Electrophoretic deposition of aramid nanofibers on carbon fibers for highly enhanced interfacial adhesion at low content",
abstract = "Here, an anodic electrophoretic deposition was adopted to facilitate the large-scale uniform coating of nano-fillers onto carbon fibers to enhance the interfacial properties between carbon fibers and epoxy matrix. As interface-reinforcing materials, aramid nanofibers were introduced because of their superior mechanical properties and epoxy matrix-friendly functional groups. Furthermore, aramid nanofibers can be readily coated on carbon fibers via electrophoretic deposition because they are negatively-charged in solution with high electrical mobility. Finally, aramid nanofiber-coated carbon fibers showed significantly improved interfacial properties such as higher surface free energy and interfacial shear strengths (39.7{\%} and 34.9{\%} increases, respectively) than those of a pristine carbon fiber despite a very small amount of embedding (0.025 wt{\%} of aramid nanofibers in a carbon fiber), and the short beam strength of the laminated composite prepared with the aramid nanofiber-coated carbon fibers was also improved by 17.0{\%} compared to a non-modified composite.",
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Electrophoretic deposition of aramid nanofibers on carbon fibers for highly enhanced interfacial adhesion at low content. / Lee, Jea Uk; Park, Byeongho; Kim, Byeong-Su; Bae, Dae Ryung; Lee, Wonoh.

In: Composites Part A: Applied Science and Manufacturing, Vol. 84, 01.05.2016, p. 482-489.

Research output: Contribution to journalArticle

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AU - Park, Byeongho

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