UV-Resistant GFRP Composite using Carbon Nanotubes

Rahulreddy Chennareddy; Hesham Tuwair; Usam F. Kandil; Mohamed ElGawady; M. M. Reda Taha

doi:10.1016/j.conbuildmat.2019.05.167

UV-Resistant GFRP Composite using Carbon Nanotubes

Rahulreddy Chennareddy
, Hesham Tuwair
, Usam F. Kandil
, Mohamed ElGawady
, M. M. Reda Taha

Civil, Architectural and Environmental Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Degradation due to exposure to ultraviolet (UV) radiation is an important durability challenge with glass fiber reinforced polymer (GFRP) composite. Design and construction guidelines of GFRP suggest using UV protection paint to prevent GFRP degradation. In this study we examine the possible use of multi-walled carbon nanotubes (MWCNTs) dispersed in epoxy matrix to produce UV-resistant GFRP composite. We suggest that MWCNTs can result in a significant improvement to UV degradation resistance in the GFRP. Direct tension tests of GFRP coupons incorporating 0.25 wt%, 0.50 wt%, and 1.0 wt% of MWCNTs show inherent stability and good resistance to UV degradation. Microstructural analysis shows the ability of MWCNTs to resist polymer backbone disassociation caused by UV radiation thus preventing UV degradation in GFRP. Scanning electron microscopy (SEM) images show MWCNTs can resist microcracking caused by UV radiation and thus improve UV degradation resistance of GFRP.

Original language	American English
Journal	Construction and Building Materials
Volume	220
DOIs	https://doi.org/10.1016/j.conbuildmat.2019.05.167
State	Published - Sep 1 2019

Keywords

Carbon nanotubes
GFRP durability
Glass fibers
Ultra-violet radiation

Disciplines

Civil and Environmental Engineering

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https://doi.org/10.1016/j.conbuildmat.2019.05.167

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@article{8b1e8d31e7e94e64959f325710ab36ae,

title = "UV-Resistant GFRP Composite using Carbon Nanotubes",

abstract = " Degradation due to exposure to ultraviolet (UV) radiation is an important durability challenge with glass fiber reinforced polymer (GFRP) composite. Design and construction guidelines of GFRP suggest using UV protection paint to prevent GFRP degradation. In this study we examine the possible use of multi-walled carbon nanotubes (MWCNTs) dispersed in epoxy matrix to produce UV-resistant GFRP composite. We suggest that MWCNTs can result in a significant improvement to UV degradation resistance in the GFRP. Direct tension tests of GFRP coupons incorporating 0.25 wt\%, 0.50 wt\%, and 1.0 wt\% of MWCNTs show inherent stability and good resistance to UV degradation. Microstructural analysis shows the ability of MWCNTs to resist polymer backbone disassociation caused by UV radiation thus preventing UV degradation in GFRP. Scanning electron microscopy (SEM) images show MWCNTs can resist microcracking caused by UV radiation and thus improve UV degradation resistance of GFRP.",

keywords = "Carbon nanotubes, GFRP durability, Glass fibers, Ultra-violet radiation",

author = "Rahulreddy Chennareddy and Hesham Tuwair and Kandil, \{Usam F.\} and Mohamed ElGawady and \{Reda Taha\}, \{M. M.\}",

year = "2019",

month = sep,

day = "1",

doi = "10.1016/j.conbuildmat.2019.05.167",

language = "American English",

volume = "220",

journal = "Construction and Building Materials",

}

TY - JOUR

T1 - UV-Resistant GFRP Composite using Carbon Nanotubes

AU - Chennareddy, Rahulreddy

AU - Tuwair, Hesham

AU - Kandil, Usam F.

AU - ElGawady, Mohamed

AU - Reda Taha, M. M.

PY - 2019/9/1

Y1 - 2019/9/1

N2 - Degradation due to exposure to ultraviolet (UV) radiation is an important durability challenge with glass fiber reinforced polymer (GFRP) composite. Design and construction guidelines of GFRP suggest using UV protection paint to prevent GFRP degradation. In this study we examine the possible use of multi-walled carbon nanotubes (MWCNTs) dispersed in epoxy matrix to produce UV-resistant GFRP composite. We suggest that MWCNTs can result in a significant improvement to UV degradation resistance in the GFRP. Direct tension tests of GFRP coupons incorporating 0.25 wt%, 0.50 wt%, and 1.0 wt% of MWCNTs show inherent stability and good resistance to UV degradation. Microstructural analysis shows the ability of MWCNTs to resist polymer backbone disassociation caused by UV radiation thus preventing UV degradation in GFRP. Scanning electron microscopy (SEM) images show MWCNTs can resist microcracking caused by UV radiation and thus improve UV degradation resistance of GFRP.

AB - Degradation due to exposure to ultraviolet (UV) radiation is an important durability challenge with glass fiber reinforced polymer (GFRP) composite. Design and construction guidelines of GFRP suggest using UV protection paint to prevent GFRP degradation. In this study we examine the possible use of multi-walled carbon nanotubes (MWCNTs) dispersed in epoxy matrix to produce UV-resistant GFRP composite. We suggest that MWCNTs can result in a significant improvement to UV degradation resistance in the GFRP. Direct tension tests of GFRP coupons incorporating 0.25 wt%, 0.50 wt%, and 1.0 wt% of MWCNTs show inherent stability and good resistance to UV degradation. Microstructural analysis shows the ability of MWCNTs to resist polymer backbone disassociation caused by UV radiation thus preventing UV degradation in GFRP. Scanning electron microscopy (SEM) images show MWCNTs can resist microcracking caused by UV radiation and thus improve UV degradation resistance of GFRP.

KW - Carbon nanotubes

KW - GFRP durability

KW - Glass fibers

KW - Ultra-violet radiation

UR - https://scholarsmine.mst.edu/civarc_enveng_facwork/1689

UR - https://doi.org/10.1016/j.conbuildmat.2019.05.167

U2 - 10.1016/j.conbuildmat.2019.05.167

DO - 10.1016/j.conbuildmat.2019.05.167

M3 - Article

VL - 220

JO - Construction and Building Materials

JF - Construction and Building Materials

ER -

UV-Resistant GFRP Composite using Carbon Nanotubes

Abstract

Keywords

Disciplines

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