Online Structural-Health Monitoring of Glass Fiber-Reinforced Thermoplastics Using Different Carbon Allotropes in the Interphase
An electromechanical response behavior is realized by nanostructuring the glass fiber interphase with different highly electrically conductive carbon allotropes like carbon nanotubes (CNT), graphene nanoplatelets (GNP), or conductive carbon black (CB). The operational capability of these multifuncti...
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doaj-0a2e93f7db86468da5b3806df39a65792020-11-25T00:54:04ZengMDPI AGMaterials1996-19442018-06-01117107510.3390/ma11071075ma11071075Online Structural-Health Monitoring of Glass Fiber-Reinforced Thermoplastics Using Different Carbon Allotropes in the InterphaseMichael Thomas Müller0Hendrik Florian Pötzsch1Uwe Gohs2Gert Heinrich3Leibniz Institute of Polymer Research Dresden, Hohe Str. 6, D-01069 Dresden, GermanyLeibniz Institute of Polymer Research Dresden, Hohe Str. 6, D-01069 Dresden, GermanyLeibniz Institute of Polymer Research Dresden, Hohe Str. 6, D-01069 Dresden, GermanyLeibniz Institute of Polymer Research Dresden, Hohe Str. 6, D-01069 Dresden, GermanyAn electromechanical response behavior is realized by nanostructuring the glass fiber interphase with different highly electrically conductive carbon allotropes like carbon nanotubes (CNT), graphene nanoplatelets (GNP), or conductive carbon black (CB). The operational capability of these multifunctional glass fibers for an online structural-health monitoring is demonstrated in endless glass fiber-reinforced polypropylene. The electromechanical response behavior, during a static or dynamic three-point bending test of various carbon modifications, shows qualitative differences in the signal quality and sensitivity due to the different aspect ratios of the nanoparticles and the associated electrically conductive network densities in the interphase. Depending on the embedding position within the glass fiber-reinforced composite compression, shear and tension loadings of the fibers can be distinguished by different characteristics of the corresponding electrical signal. The occurrence of irreversible signal changes during the dynamic loading can be attributed to filler reorientation processes caused by polymer creeping or by destruction of electrically conductive paths by cracks in the glass fiber interphase.http://www.mdpi.com/1996-1944/11/7/1075glass fiberinterphasein-situ sensorglass fiber-reinforced thermoplasticscarbon filler |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Michael Thomas Müller Hendrik Florian Pötzsch Uwe Gohs Gert Heinrich |
spellingShingle |
Michael Thomas Müller Hendrik Florian Pötzsch Uwe Gohs Gert Heinrich Online Structural-Health Monitoring of Glass Fiber-Reinforced Thermoplastics Using Different Carbon Allotropes in the Interphase Materials glass fiber interphase in-situ sensor glass fiber-reinforced thermoplastics carbon filler |
author_facet |
Michael Thomas Müller Hendrik Florian Pötzsch Uwe Gohs Gert Heinrich |
author_sort |
Michael Thomas Müller |
title |
Online Structural-Health Monitoring of Glass Fiber-Reinforced Thermoplastics Using Different Carbon Allotropes in the Interphase |
title_short |
Online Structural-Health Monitoring of Glass Fiber-Reinforced Thermoplastics Using Different Carbon Allotropes in the Interphase |
title_full |
Online Structural-Health Monitoring of Glass Fiber-Reinforced Thermoplastics Using Different Carbon Allotropes in the Interphase |
title_fullStr |
Online Structural-Health Monitoring of Glass Fiber-Reinforced Thermoplastics Using Different Carbon Allotropes in the Interphase |
title_full_unstemmed |
Online Structural-Health Monitoring of Glass Fiber-Reinforced Thermoplastics Using Different Carbon Allotropes in the Interphase |
title_sort |
online structural-health monitoring of glass fiber-reinforced thermoplastics using different carbon allotropes in the interphase |
publisher |
MDPI AG |
series |
Materials |
issn |
1996-1944 |
publishDate |
2018-06-01 |
description |
An electromechanical response behavior is realized by nanostructuring the glass fiber interphase with different highly electrically conductive carbon allotropes like carbon nanotubes (CNT), graphene nanoplatelets (GNP), or conductive carbon black (CB). The operational capability of these multifunctional glass fibers for an online structural-health monitoring is demonstrated in endless glass fiber-reinforced polypropylene. The electromechanical response behavior, during a static or dynamic three-point bending test of various carbon modifications, shows qualitative differences in the signal quality and sensitivity due to the different aspect ratios of the nanoparticles and the associated electrically conductive network densities in the interphase. Depending on the embedding position within the glass fiber-reinforced composite compression, shear and tension loadings of the fibers can be distinguished by different characteristics of the corresponding electrical signal. The occurrence of irreversible signal changes during the dynamic loading can be attributed to filler reorientation processes caused by polymer creeping or by destruction of electrically conductive paths by cracks in the glass fiber interphase. |
topic |
glass fiber interphase in-situ sensor glass fiber-reinforced thermoplastics carbon filler |
url |
http://www.mdpi.com/1996-1944/11/7/1075 |
work_keys_str_mv |
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1725235467866079232 |