Observations of a novel strengthening mechanism in HDPE nanocomposites

Previous strengthening mechanisms described in literature for high density polyethylene (HDPE) carbon nanotubes composites are typical of those observed in fibre reinforced polymeric micro composites. Here, we present a new molecular level strengthening mechanism based on HDPE carbon nanotubes compo...

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Autores principales:	Chinyere Okolo, Fawad Inam
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2018
Materias:	multi-wall carbon nanotubes (mwcnt) high density polyethylene (hdpe) strengthening mechanism nanocomposites orientation tensile strength modulus extrusion Materials of engineering and construction. Mechanics of materials TA401-492 Polymers and polymer manufacture TP1080-1185
Acceso en línea:	https://doaj.org/article/4ef41adb260844b58ff50f6d64cc9054
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spelling	oai:doaj.org-article:4ef41adb260844b58ff50f6d64cc90542021-12-02T13:34:25ZObservations of a novel strengthening mechanism in HDPE nanocomposites2055-033210.1080/20550324.2018.1558798https://doaj.org/article/4ef41adb260844b58ff50f6d64cc90542018-10-01T00:00:00Zhttp://dx.doi.org/10.1080/20550324.2018.1558798https://doaj.org/toc/2055-0332Previous strengthening mechanisms described in literature for high density polyethylene (HDPE) carbon nanotubes composites are typical of those observed in fibre reinforced polymeric micro composites. Here, we present a new molecular level strengthening mechanism based on HDPE carbon nanotubes composite, which has not been reported before to the best of authors’ knowledge. The HDPE nanocomposite was produced by melt intercalation technique via twin-screw extrusion. Thereafter, the samples were subjected to mechanical tensile tests and scanning electron microscope (SEM) examination. Carbon nanotubes (CNTs) were found to be disentangled from the polymer molecules after yielding and prior to breaking. SEM and optical microscopic observations revealed visible black agglomerate bands at 45° appeared after yielding and prior to the breaking of the ductile HDPE. It was observed that CNTs were pushed out from the intricate mechanical interlocking with the thermoplastic polymeric chains of HDPE during strain hardening.Chinyere OkoloFawad InamTaylor & Francis Grouparticlemulti-wall carbon nanotubes (mwcnt)high density polyethylene (hdpe)strengthening mechanismnanocompositesorientationtensile strengthmodulusextrusionMaterials of engineering and construction. Mechanics of materialsTA401-492Polymers and polymer manufactureTP1080-1185ENNanocomposites, Vol 4, Iss 4, Pp 215-222 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	multi-wall carbon nanotubes (mwcnt) high density polyethylene (hdpe) strengthening mechanism nanocomposites orientation tensile strength modulus extrusion Materials of engineering and construction. Mechanics of materials TA401-492 Polymers and polymer manufacture TP1080-1185
spellingShingle	multi-wall carbon nanotubes (mwcnt) high density polyethylene (hdpe) strengthening mechanism nanocomposites orientation tensile strength modulus extrusion Materials of engineering and construction. Mechanics of materials TA401-492 Polymers and polymer manufacture TP1080-1185 Chinyere Okolo Fawad Inam Observations of a novel strengthening mechanism in HDPE nanocomposites
description	Previous strengthening mechanisms described in literature for high density polyethylene (HDPE) carbon nanotubes composites are typical of those observed in fibre reinforced polymeric micro composites. Here, we present a new molecular level strengthening mechanism based on HDPE carbon nanotubes composite, which has not been reported before to the best of authors’ knowledge. The HDPE nanocomposite was produced by melt intercalation technique via twin-screw extrusion. Thereafter, the samples were subjected to mechanical tensile tests and scanning electron microscope (SEM) examination. Carbon nanotubes (CNTs) were found to be disentangled from the polymer molecules after yielding and prior to breaking. SEM and optical microscopic observations revealed visible black agglomerate bands at 45° appeared after yielding and prior to the breaking of the ductile HDPE. It was observed that CNTs were pushed out from the intricate mechanical interlocking with the thermoplastic polymeric chains of HDPE during strain hardening.
format	article
author	Chinyere Okolo Fawad Inam
author_facet	Chinyere Okolo Fawad Inam
author_sort	Chinyere Okolo
title	Observations of a novel strengthening mechanism in HDPE nanocomposites
title_short	Observations of a novel strengthening mechanism in HDPE nanocomposites
title_full	Observations of a novel strengthening mechanism in HDPE nanocomposites
title_fullStr	Observations of a novel strengthening mechanism in HDPE nanocomposites
title_full_unstemmed	Observations of a novel strengthening mechanism in HDPE nanocomposites
title_sort	observations of a novel strengthening mechanism in hdpe nanocomposites
publisher	Taylor & Francis Group
publishDate	2018
url	https://doaj.org/article/4ef41adb260844b58ff50f6d64cc9054
work_keys_str_mv	AT chinyereokolo observationsofanovelstrengtheningmechanisminhdpenanocomposites AT fawadinam observationsofanovelstrengtheningmechanisminhdpenanocomposites
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Observations of a novel strengthening mechanism in HDPE nanocomposites

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