Polyaniline/multi-walled carbon nanotube composites for structural vibration damping and strain sensing
| Autor: | Weiwei Lin, Yonatan Rotenberg, Hadi Fekrmandi, Cesar Levy, Kevin P. Ward |
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| Rok vydání: | 2016 |
| Předmět: |
Nanocomposite
Materials science Scanning electron microscope Mechanical Engineering Composite number 02 engineering and technology Carbon nanotube 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences law.invention chemistry.chemical_compound chemistry Mechanics of Materials law Polyaniline General Materials Science Composite material In situ polymerization 0210 nano-technology FOIL method Strain gauge |
| Zdroj: | Journal of Materials Research. 32:73-83 |
| ISSN: | 2044-5326 0884-2914 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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