Graphene oxide-coated Poly(vinyl alcohol) fibers for enhanced fiber-reinforced cementitious composites

Xupei Yao, Ezzatollah Shamsaei, Shujian Chen, Qian Hui Zhang, Felipe Basquiroto de Souza, Kwesi Sagoe-Crentsil, Wenhui Duan

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The interface properties between fiber and matrix predominantly influence the mechanical performance of fiber reinforced cementitious composites (FRCCs). In this study, the interface between polyvinyl alcohol (PVA) fibers and mortar was modified by coating graphene oxide (GO) on the fiber surface. Experimental results showed the GO@ PVA fibers improved the tensile strength of FRCCs by 35.6% compared to that of pristine PVA FRCCs. Theoretical analysis indicated this significant improvement was attributed to the enhancement of the chemical bond energy (Gd) at fiber/matrix interface. With GO surface modification, the Gd was increased more than 80 times, changing the failure mode at the interface from adhesive failure to cohesive failure.

Original languageEnglish
Article number107010
Number of pages8
JournalComposites Part B: Engineering
Volume174
DOIs
Publication statusPublished - 1 Oct 2019

Keywords

  • Cement
  • Graphene oxide
  • Interface
  • PVA fibers
  • Surface modification

Cite this

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title = "Graphene oxide-coated Poly(vinyl alcohol) fibers for enhanced fiber-reinforced cementitious composites",
abstract = "The interface properties between fiber and matrix predominantly influence the mechanical performance of fiber reinforced cementitious composites (FRCCs). In this study, the interface between polyvinyl alcohol (PVA) fibers and mortar was modified by coating graphene oxide (GO) on the fiber surface. Experimental results showed the GO@ PVA fibers improved the tensile strength of FRCCs by 35.6{\%} compared to that of pristine PVA FRCCs. Theoretical analysis indicated this significant improvement was attributed to the enhancement of the chemical bond energy (Gd) at fiber/matrix interface. With GO surface modification, the Gd was increased more than 80 times, changing the failure mode at the interface from adhesive failure to cohesive failure.",
keywords = "Cement, Graphene oxide, Interface, PVA fibers, Surface modification",
author = "Xupei Yao and Ezzatollah Shamsaei and Shujian Chen and Zhang, {Qian Hui} and {de Souza}, {Felipe Basquiroto} and Kwesi Sagoe-Crentsil and Wenhui Duan",
year = "2019",
month = "10",
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doi = "10.1016/j.compositesb.2019.107010",
language = "English",
volume = "174",
journal = "Composites Part B: Engineering",
issn = "1359-8368",
publisher = "Elsevier",

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Graphene oxide-coated Poly(vinyl alcohol) fibers for enhanced fiber-reinforced cementitious composites. / Yao, Xupei; Shamsaei, Ezzatollah; Chen, Shujian; Zhang, Qian Hui; de Souza, Felipe Basquiroto; Sagoe-Crentsil, Kwesi; Duan, Wenhui.

In: Composites Part B: Engineering, Vol. 174, 107010, 01.10.2019.

Research output: Contribution to journalArticleResearchpeer-review

TY - JOUR

T1 - Graphene oxide-coated Poly(vinyl alcohol) fibers for enhanced fiber-reinforced cementitious composites

AU - Yao, Xupei

AU - Shamsaei, Ezzatollah

AU - Chen, Shujian

AU - Zhang, Qian Hui

AU - de Souza, Felipe Basquiroto

AU - Sagoe-Crentsil, Kwesi

AU - Duan, Wenhui

PY - 2019/10/1

Y1 - 2019/10/1

N2 - The interface properties between fiber and matrix predominantly influence the mechanical performance of fiber reinforced cementitious composites (FRCCs). In this study, the interface between polyvinyl alcohol (PVA) fibers and mortar was modified by coating graphene oxide (GO) on the fiber surface. Experimental results showed the GO@ PVA fibers improved the tensile strength of FRCCs by 35.6% compared to that of pristine PVA FRCCs. Theoretical analysis indicated this significant improvement was attributed to the enhancement of the chemical bond energy (Gd) at fiber/matrix interface. With GO surface modification, the Gd was increased more than 80 times, changing the failure mode at the interface from adhesive failure to cohesive failure.

AB - The interface properties between fiber and matrix predominantly influence the mechanical performance of fiber reinforced cementitious composites (FRCCs). In this study, the interface between polyvinyl alcohol (PVA) fibers and mortar was modified by coating graphene oxide (GO) on the fiber surface. Experimental results showed the GO@ PVA fibers improved the tensile strength of FRCCs by 35.6% compared to that of pristine PVA FRCCs. Theoretical analysis indicated this significant improvement was attributed to the enhancement of the chemical bond energy (Gd) at fiber/matrix interface. With GO surface modification, the Gd was increased more than 80 times, changing the failure mode at the interface from adhesive failure to cohesive failure.

KW - Cement

KW - Graphene oxide

KW - Interface

KW - PVA fibers

KW - Surface modification

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U2 - 10.1016/j.compositesb.2019.107010

DO - 10.1016/j.compositesb.2019.107010

M3 - Article

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JO - Composites Part B: Engineering

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