Our paper has been published by JMR early career scholars in materials science annual issue and 2016 Cambridge University Press

Polyaniline/multi-walled carbon nanotube composites for structural vibration damping and strain sensing


Polyaniline (PANI)/11% Multi-carbon nanotubes (MWCNT) nanocomposites sensors were synthesized through an in situ polymerization method. Frits compression method was adopted to make PANI/MWCNT. Transmission Electron Microscopy (TEM) and Scanning Electron Microscopy (SEM) tests results showed that this technique produced a coating of PANI onto the MWCNT, which indicated that CNT were well dispersed in the polymer matrix. Several tests were run to evaluate the sensor’s capabilities. The free end vibration test results showed that the double sided attachment of the sensor had higher damping ratio values than single sided attachment. Also, damping ratios were higher when the sensor was placed at the clamped end. Further, the strain sensing properties of PANI/MWCNT sensors were compared with the conventional foil strain gage. The dynamic sensing test results showed that over the range of 10–1000 Hz, the PANI/MWCNT composite sensor was consistently superior to the traditional foil strain gage for sensing purposes.


Lin, Weiwei, Yonatan Rotenberg, Kevin P. Ward, Hadi Fekrmandi, and Cesar Levy. “Polyaniline/multi-walled carbon nanotube composites for structural vibration damping and strain sensing.” Journal of Materials Research 32, no. 1 (2017): 73-83. Link

Page Author: Samuel Irwin, BS student Mechanical Engineering, SDSMT

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