Electrical resistance sensing of epoxy curing using an embedded carbon nanotube Yarn
Curing effects were investigated by using the electrical response of a single carbon nanotube yarn (CNTY) embedded in an epoxy resin during the polymerization process. Two epoxy resins of different viscosities and curing temperatures were investigated, varying also the concentration of the curing agent. It is shown that the kinetics of resin curing can be followed by using the electrical response of an individual CNTY embedded in the resin. The electrical resistance of an embedded CNTY increased (~ 9%) after resin curing for an epoxy resin cured at 130 °C with viscosity of ~ 59 cP at the pouring/curing temperature (“Epon 862”), while it decreased (~ −9%) for a different epoxy cured at 60 °C, whose viscosity is about double at the corresponding curing temperature. Lowering the curing temperature from 60 °C to room temperature caused slower and smoother changes of electrical resistance over time and smaller (positive) residual resistance. Increasing the concentration of the curing agent caused a faster curing kinetics and, consequently, more abrupt changes of electrical resistance over time, with negative residual electrical resistance. Therefore, the resin viscosity and curing kinetics play a paramount role in the CNTY wicking, wetting and resin infiltration processes, which ultimately govern the electrical response of the CNTY immersed into epoxy.
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Subjects: | info:eu-repo/classification/Autores/CARBON NANOTUBE YARN, info:eu-repo/classification/Autores/ELECTRICAL RESISTANCE, info:eu-repo/classification/Autores/CURING EFFECTS, info:eu-repo/classification/Autores/THERMOSETTING MATRIX, info:eu-repo/classification/Autores/EPOXY, info:eu-repo/classification/cti/7, info:eu-repo/classification/cti/33, info:eu-repo/classification/cti/3312, info:eu-repo/classification/cti/331209, |
Online Access: | http://cicy.repositorioinstitucional.mx/jspui/handle/1003/1821 |
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dig-cicy-1003-18212021-04-27T15:39:49Z Electrical resistance sensing of epoxy curing using an embedded carbon nanotube Yarn OMAR EDUARDO RODRIGUEZ UICAB Jandro Abot FRANCIS AVILES CETINA 2020 info:eu-repo/semantics/article Curing effects were investigated by using the electrical response of a single carbon nanotube yarn (CNTY) embedded in an epoxy resin during the polymerization process. Two epoxy resins of different viscosities and curing temperatures were investigated, varying also the concentration of the curing agent. It is shown that the kinetics of resin curing can be followed by using the electrical response of an individual CNTY embedded in the resin. The electrical resistance of an embedded CNTY increased (~ 9%) after resin curing for an epoxy resin cured at 130 °C with viscosity of ~ 59 cP at the pouring/curing temperature (“Epon 862”), while it decreased (~ −9%) for a different epoxy cured at 60 °C, whose viscosity is about double at the corresponding curing temperature. Lowering the curing temperature from 60 °C to room temperature caused slower and smoother changes of electrical resistance over time and smaller (positive) residual resistance. Increasing the concentration of the curing agent caused a faster curing kinetics and, consequently, more abrupt changes of electrical resistance over time, with negative residual electrical resistance. Therefore, the resin viscosity and curing kinetics play a paramount role in the CNTY wicking, wetting and resin infiltration processes, which ultimately govern the electrical response of the CNTY immersed into epoxy. info:eu-repo/classification/Autores/CARBON NANOTUBE YARN info:eu-repo/classification/Autores/ELECTRICAL RESISTANCE info:eu-repo/classification/Autores/CURING EFFECTS info:eu-repo/classification/Autores/THERMOSETTING MATRIX info:eu-repo/classification/Autores/EPOXY info:eu-repo/classification/cti/7 info:eu-repo/classification/cti/33 info:eu-repo/classification/cti/3312 info:eu-repo/classification/cti/331209 info:eu-repo/classification/cti/331209 Sensors, 20(11), 3230, 2020 http://cicy.repositorioinstitucional.mx/jspui/handle/1003/1821 info:eu-repo/semantics/datasetDOI/doi:10.3390/s20113230 info:eu-repo/semantics/openAccess eng citation:Rodríguez-Uicab, O., Abot, J. L., & Avilés, F. (2020). Electrical resistance sensing of epoxy curing using an embedded carbon nanotube Yarn. Sensors, 20(11), 3230. http://creativecommons.org/licenses/by-nc-nd/4.0 application/pdf |
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info:eu-repo/classification/Autores/CARBON NANOTUBE YARN info:eu-repo/classification/Autores/ELECTRICAL RESISTANCE info:eu-repo/classification/Autores/CURING EFFECTS info:eu-repo/classification/Autores/THERMOSETTING MATRIX info:eu-repo/classification/Autores/EPOXY info:eu-repo/classification/cti/7 info:eu-repo/classification/cti/33 info:eu-repo/classification/cti/3312 info:eu-repo/classification/cti/331209 info:eu-repo/classification/cti/331209 info:eu-repo/classification/Autores/CARBON NANOTUBE YARN info:eu-repo/classification/Autores/ELECTRICAL RESISTANCE info:eu-repo/classification/Autores/CURING EFFECTS info:eu-repo/classification/Autores/THERMOSETTING MATRIX info:eu-repo/classification/Autores/EPOXY info:eu-repo/classification/cti/7 info:eu-repo/classification/cti/33 info:eu-repo/classification/cti/3312 info:eu-repo/classification/cti/331209 info:eu-repo/classification/cti/331209 |
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info:eu-repo/classification/Autores/CARBON NANOTUBE YARN info:eu-repo/classification/Autores/ELECTRICAL RESISTANCE info:eu-repo/classification/Autores/CURING EFFECTS info:eu-repo/classification/Autores/THERMOSETTING MATRIX info:eu-repo/classification/Autores/EPOXY info:eu-repo/classification/cti/7 info:eu-repo/classification/cti/33 info:eu-repo/classification/cti/3312 info:eu-repo/classification/cti/331209 info:eu-repo/classification/cti/331209 info:eu-repo/classification/Autores/CARBON NANOTUBE YARN info:eu-repo/classification/Autores/ELECTRICAL RESISTANCE info:eu-repo/classification/Autores/CURING EFFECTS info:eu-repo/classification/Autores/THERMOSETTING MATRIX info:eu-repo/classification/Autores/EPOXY info:eu-repo/classification/cti/7 info:eu-repo/classification/cti/33 info:eu-repo/classification/cti/3312 info:eu-repo/classification/cti/331209 info:eu-repo/classification/cti/331209 OMAR EDUARDO RODRIGUEZ UICAB Jandro Abot FRANCIS AVILES CETINA Electrical resistance sensing of epoxy curing using an embedded carbon nanotube Yarn |
description |
Curing effects were investigated by using the electrical response of a single carbon nanotube yarn (CNTY) embedded in an epoxy resin during the polymerization process. Two epoxy resins of different viscosities and curing temperatures were investigated, varying also the concentration of the curing agent. It is shown that the kinetics of resin curing can be followed by using the electrical response of an individual CNTY embedded in the resin. The electrical resistance of an embedded CNTY increased (~ 9%) after resin curing for an epoxy resin cured at 130 °C with viscosity of ~ 59 cP at the pouring/curing temperature (“Epon 862”), while it decreased (~ −9%) for a different epoxy cured at 60 °C, whose viscosity is about double at the corresponding curing temperature. Lowering the curing temperature from 60 °C to room temperature caused slower and smoother changes of electrical resistance over time and smaller (positive) residual resistance. Increasing the concentration of the curing agent caused a faster curing kinetics and, consequently, more abrupt changes of electrical resistance over time, with negative residual electrical resistance. Therefore, the resin viscosity and curing kinetics play a paramount role in the CNTY wicking, wetting and resin infiltration processes, which ultimately govern the electrical response of the CNTY immersed into epoxy. |
format |
info:eu-repo/semantics/article |
topic_facet |
info:eu-repo/classification/Autores/CARBON NANOTUBE YARN info:eu-repo/classification/Autores/ELECTRICAL RESISTANCE info:eu-repo/classification/Autores/CURING EFFECTS info:eu-repo/classification/Autores/THERMOSETTING MATRIX info:eu-repo/classification/Autores/EPOXY info:eu-repo/classification/cti/7 info:eu-repo/classification/cti/33 info:eu-repo/classification/cti/3312 info:eu-repo/classification/cti/331209 info:eu-repo/classification/cti/331209 |
author |
OMAR EDUARDO RODRIGUEZ UICAB Jandro Abot FRANCIS AVILES CETINA |
author_facet |
OMAR EDUARDO RODRIGUEZ UICAB Jandro Abot FRANCIS AVILES CETINA |
author_sort |
OMAR EDUARDO RODRIGUEZ UICAB |
title |
Electrical resistance sensing of epoxy curing using an embedded carbon nanotube Yarn |
title_short |
Electrical resistance sensing of epoxy curing using an embedded carbon nanotube Yarn |
title_full |
Electrical resistance sensing of epoxy curing using an embedded carbon nanotube Yarn |
title_fullStr |
Electrical resistance sensing of epoxy curing using an embedded carbon nanotube Yarn |
title_full_unstemmed |
Electrical resistance sensing of epoxy curing using an embedded carbon nanotube Yarn |
title_sort |
electrical resistance sensing of epoxy curing using an embedded carbon nanotube yarn |
url |
http://cicy.repositorioinstitucional.mx/jspui/handle/1003/1821 |
work_keys_str_mv |
AT omareduardorodriguezuicab electricalresistancesensingofepoxycuringusinganembeddedcarbonnanotubeyarn AT jandroabot electricalresistancesensingofepoxycuringusinganembeddedcarbonnanotubeyarn AT francisavilescetina electricalresistancesensingofepoxycuringusinganembeddedcarbonnanotubeyarn |
_version_ |
1756089302046998528 |