Skip to main navigation Skip to search Skip to main content

SWCNT thin film enabled piezoresistive sensors - Fabrication, characterization and application for structural health monitoring for polymeric composites structure

  • High-Performance Materials Institute, Florida State University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

With the quantitative carbon nanotube dispersion characterization methods (preparative ultracentrifuge method (PUM) and dynamic light scattering (DLS)) and the spray-coating technique, the processingstructure-property relationships of single-wall carbon nanotube (SWCNT) thin film piezoresistive sensors were studied. It was found that the gauge factor of the sensors for a small tensile deformation (less than 2% strain) is close to unity and showed negligible dependence on the film thickness and SWCNT bundle length (L) and diameter (d). With incorporation of a small amount of conducting polymer - poly (3, 4- ethylenedioxythiophene)-poly (styrenesulfonate) (PEDOT: PSS) into SWCNT network, the SWCNT/PEDOT: PSS hybrid thin film sensor showed significantly improved gauge factor and electrical conductivity. The spray coating technique was further developed into a roll-to-roll process for continuously fabricating SWCNT thin film enabled fiber sensors. A promising application of the fiber sensor for real-time monitoring the curing process of epoxy resin has been demonstrated.

Original languageEnglish
Title of host publication54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
DOIs
StatePublished - 2013
Externally publishedYes
Event54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference - Boston, MA, United States
Duration: 8 Apr 201311 Apr 2013

Publication series

Name54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference

Conference

Conference54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Country/TerritoryUnited States
CityBoston, MA
Period8/04/1311/04/13

Fingerprint

Dive into the research topics of 'SWCNT thin film enabled piezoresistive sensors - Fabrication, characterization and application for structural health monitoring for polymeric composites structure'. Together they form a unique fingerprint.

Cite this