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Investigation of Inherently Conductive Polymer as Structure Health Monitoring Sensor for Composite

Published online by Cambridge University Press:  17 June 2011

Huaxiang Yang ,
Dongsik Kim ,
Abhishek K. Singh ,
Brady W. Pitts ,
Gregory J. Tregre  and
Patrick J. Kinlen
Huaxiang Yang
Affiliation:
Crosslink, 46 Shelby Thames Drive, Hattiesburg MS 39402, U.S.A
Dongsik Kim
Affiliation:
Crosslink, 46 Shelby Thames Drive, Hattiesburg MS 39402, U.S.A
Abhishek K. Singh
Affiliation:
Crosslink, 46 Shelby Thames Drive, Hattiesburg MS 39402, U.S.A
Brady W. Pitts
Affiliation:
Crosslink, 46 Shelby Thames Drive, Hattiesburg MS 39402, U.S.A
Gregory J. Tregre
Affiliation:
Crosslink, 46 Shelby Thames Drive, Hattiesburg MS 39402, U.S.A
Patrick J. Kinlen
Affiliation:
Crosslink, 950 Bolger Court, St. Louis, MO 63026, U.S.A
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Abstract

A soluble polyaniline was synthesized through emulsion polymerization and characterized using differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), gel permeation chromatography (GPC), viscosity analysis, and coefficient of linear thermal expansion (CLTE) determination. The electrical conductivity is found to reach 1000 S/cm with specific post doping treatments. Multiple printing processes, such as inkjet printing, screen printing and aerosol jet printing etc, make it feasible to print a variety of sensor patterns. The electromechanical response of these sensors was used to measure strain/stress or damage of composite structures under various load conditions expected to be experienced by aircraft. These unique conductive polymer sensors provide a feasible, near real time monitoring system for composites without adding significant additional weight to the structure.

Keywords

screen printingpolymerstress/strain relationship
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1312: Symposium HH/II/JJ – Polymer-Based Materials and Composites—Synthesis, Assembly and Applications , 2011 , mrsf10-1312-hh04-07
Copyright
Copyright © Materials Research Society 2011

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