Poisson effect enhances compression force sensing with oxidized carbon nanotube network/polyurethane sensor

0483358 - ÚH 2019 RIV CH eng J - Journal Article
Slobodian, P. - Říha, Pavel - Olejník, R. - Matyáš, J. - Kovář, M.
Poisson effect enhances compression force sensing with oxidized carbon nanotube network/polyurethane sensor.
Sensors and Actuators A - Physical. Roč. 271, March (2018), s. 76-82. ISSN 0924-4247. E-ISSN 1873-3069
Grant - others:Ministerstvo školství, mládeže a tělovýchovy (MŠMT)(CZ) LO1504; TBU in Zlin(CZ) IGA/CPS/2015/001
Institutional research plan: CEZ:AV0Z20600510
Keywords : compression force sensor * carbon nanotubes * polyurethane * polymer composite * nanocracks
OECD category: Nano-processes (applications on nano-scale)
Impact factor: 2.739, year: 2018

Poisson effect when a sensor made of multi-walled carbon nanotube network embedded in the elastic polyurethane was compressed in one direction and expanded in the other two directions perpendicular to the direction of compression several fold enhanced the sensing owing to nano-sized cracks of the network. The composite sensitivity was further multiplicatively enhanced by KMnO4 oxidation of carbon nanotubes. As an example of the composite use as a compression sensor, a pressure on the shoe sole was monitored as well as a ball bullet impact on the sensor.
Permanent Link: http://hdl.handle.net/11104/0281876