Flexural and shear properties of CFRP laminates reinforced with functionalized multiwalled CNTs

This study focuses on mechanical characterization of carbon fiber reinforced polymer (CFRP) laminates reinforced with non-treated and treated multiwalled carbon nanotubes (CNTs) using nitric acid. The CNTs were treated using nitric acid to obtain carboxylic functional group. The epoxy resins are mix...

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Autores principales:	Getahun Tefera, Glen Bright, Sarp Adali
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2021
Materias:	carbon nanotubes nanocomposites mechanical properties fracture properties short beam shear three-point bending carbon fiber ftir Materials of engineering and construction. Mechanics of materials TA401-492 Polymers and polymer manufacture TP1080-1185
Acceso en línea:	https://doaj.org/article/b79baac0009f444b98e598144433ef98
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spelling	oai:doaj.org-article:b79baac0009f444b98e598144433ef982021-12-02T15:15:54ZFlexural and shear properties of CFRP laminates reinforced with functionalized multiwalled CNTs2055-033210.1080/20550324.2021.1961507https://doaj.org/article/b79baac0009f444b98e598144433ef982021-01-01T00:00:00Zhttp://dx.doi.org/10.1080/20550324.2021.1961507https://doaj.org/toc/2055-0332This study focuses on mechanical characterization of carbon fiber reinforced polymer (CFRP) laminates reinforced with non-treated and treated multiwalled carbon nanotubes (CNTs) using nitric acid. The CNTs were treated using nitric acid to obtain carboxylic functional group. The epoxy resins are mixed with 0.3%wt of multiwalled CNTs at a constant mixing speed of 2000 rpm and mixing times varied from 24 to 96 h. Laminates reinforced with treated multiwalled CNTs show an increase in the flexural strength by 17.4 and 15.3% at mixing times of 24 and 96 h as compared to control laminates. The test results indicated that laminates reinforced with treated multiwalled CNTs have improved interlaminar shear failure stress which is 14 and 7% higher at mixing times of 24 and 96 h as compared to control specimen. Improvement in behavior was achieved for functionalized CNTs based laminates which prevents agglomeration. Longer mixing time (96 h) is not beneficial for enhancing the mechanical properties due to the break-up of small aggregates by overcoming the effect of van der Waals forces.Getahun TeferaGlen BrightSarp AdaliTaylor & Francis Grouparticlecarbon nanotubesnanocompositesmechanical propertiesfracture propertiesshort beam shearthree-point bendingcarbon fiberftirMaterials of engineering and construction. Mechanics of materialsTA401-492Polymers and polymer manufactureTP1080-1185ENNanocomposites, Vol 7, Iss 1, Pp 141-153 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	carbon nanotubes nanocomposites mechanical properties fracture properties short beam shear three-point bending carbon fiber ftir Materials of engineering and construction. Mechanics of materials TA401-492 Polymers and polymer manufacture TP1080-1185
spellingShingle	carbon nanotubes nanocomposites mechanical properties fracture properties short beam shear three-point bending carbon fiber ftir Materials of engineering and construction. Mechanics of materials TA401-492 Polymers and polymer manufacture TP1080-1185 Getahun Tefera Glen Bright Sarp Adali Flexural and shear properties of CFRP laminates reinforced with functionalized multiwalled CNTs
description	This study focuses on mechanical characterization of carbon fiber reinforced polymer (CFRP) laminates reinforced with non-treated and treated multiwalled carbon nanotubes (CNTs) using nitric acid. The CNTs were treated using nitric acid to obtain carboxylic functional group. The epoxy resins are mixed with 0.3%wt of multiwalled CNTs at a constant mixing speed of 2000 rpm and mixing times varied from 24 to 96 h. Laminates reinforced with treated multiwalled CNTs show an increase in the flexural strength by 17.4 and 15.3% at mixing times of 24 and 96 h as compared to control laminates. The test results indicated that laminates reinforced with treated multiwalled CNTs have improved interlaminar shear failure stress which is 14 and 7% higher at mixing times of 24 and 96 h as compared to control specimen. Improvement in behavior was achieved for functionalized CNTs based laminates which prevents agglomeration. Longer mixing time (96 h) is not beneficial for enhancing the mechanical properties due to the break-up of small aggregates by overcoming the effect of van der Waals forces.
format	article
author	Getahun Tefera Glen Bright Sarp Adali
author_facet	Getahun Tefera Glen Bright Sarp Adali
author_sort	Getahun Tefera
title	Flexural and shear properties of CFRP laminates reinforced with functionalized multiwalled CNTs
title_short	Flexural and shear properties of CFRP laminates reinforced with functionalized multiwalled CNTs
title_full	Flexural and shear properties of CFRP laminates reinforced with functionalized multiwalled CNTs
title_fullStr	Flexural and shear properties of CFRP laminates reinforced with functionalized multiwalled CNTs
title_full_unstemmed	Flexural and shear properties of CFRP laminates reinforced with functionalized multiwalled CNTs
title_sort	flexural and shear properties of cfrp laminates reinforced with functionalized multiwalled cnts
publisher	Taylor & Francis Group
publishDate	2021
url	https://doaj.org/article/b79baac0009f444b98e598144433ef98
work_keys_str_mv	AT getahuntefera flexuralandshearpropertiesofcfrplaminatesreinforcedwithfunctionalizedmultiwalledcnts AT glenbright flexuralandshearpropertiesofcfrplaminatesreinforcedwithfunctionalizedmultiwalledcnts AT sarpadali flexuralandshearpropertiesofcfrplaminatesreinforcedwithfunctionalizedmultiwalledcnts
_version_	1718387532052299776

Flexural and shear properties of CFRP laminates reinforced with functionalized multiwalled CNTs

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