TY - GEN
T1 - SWCNT thin film enabled piezoresistive sensors - Fabrication, characterization and application for structural health monitoring for polymeric composites structure
AU - Obitayo, Waris
AU - Luo, Sida
AU - Liu, Tao
PY - 2013
Y1 - 2013
N2 - 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.
AB - 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.
UR - https://www.scopus.com/pages/publications/84881360539
M3 - 会议稿件
AN - SCOPUS:84881360539
SN - 9781624102233
T3 - Collection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
BT - 54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
T2 - 54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Y2 - 8 April 2013 through 11 April 2013
ER -