Study of the Adhesion Properties of the Electrode and the Piezoelectric Film-Type Sensor

Se-Gi Park; Hui-Yun Hwang

Study of the Adhesion Properties of the Electrode and the Piezoelectric Film-Type Sensor

Se-Gi Park & Hui-Yun Hwang

Keywords: Adhesion, PVDF film, electrode

A b s t r a c t

PVDF film sensor embedded tactile sensing systems have been used due to their flexible and adaptable characteristics to curved surfaces. For reliable sensing, PVDF film sensor must be firmly fixed to a specific location of the substrate because the deformation of the substrate must be transmitted well to the PVDF film sensor. Therefore, adhesion of the substrate and the film sensor is an important factor. We implement adhesion test between the film and the electrode. The electrodes were fabricated on the film by plasma sputtering method. With gold and silver coated PVDF films, pull-off tests and SEM (Scanning Electron Microscope) were conducted to figure out the adhesion characteristics between the electrode and the film according to the type and thickness of the electrode. Adhesion strength between the electrode and PVDF films increased as the plasma sputtering duration increased and seems to be saturated to the certain value.

References

[1]       Cheong, C. C., Kim, J. H. & Lee. J. K. (1999). Piezoelectric Smart Structures for Noise Reduction in a Cabin. The Korean Society of Mechanical Engineers International Journal, 13(6), 451-458.
[2]       Kwon, O. M., Kim, S. S. & Hwang, H. Y. (2013). Analysis of interfacial adhesion strength between PDMS and PVDF fiber with respect to the Amino silane surface treatment. The Korean Society for Composite Materials Fall Meeting. 21-22 November, 2013. Busan, Korea.
[3]       Lee, C. S., Joo, J., Han, S., Seok, J. W., Lee, W. J. & Beag, Y. W. (2003). Relationship between SPL and different electrodes of PVDF film speaker. 24th Korean Vacuum Society Meeting. February 2003. Hanyang University, South Korea.
[4]       Park, S. G. & Hwang, H. Y. (2014). The effect of the material and thickness of electrodes on the adhesion characteristics to the film type piezoelectric sensor. The Korean Society of Mechanical Engineers Fall Meeting. 2-3 November, 2014. Busan, South Korea.
[5]       Pierre, U. (2001). PVDF piezoelectric polymer. Sensor Review, 21(2),118-125.
[6]       Shirinov, A. V. & Schomburg, W. K. (2008). Pressure sensor from a PVDF film. Sensors and Actuators A, 142(1), 48-55.
[7]       Shirinov, A. V. & Schomburg, W. K. (2006). PVDF foil sensor for checking valve switching. Proceedings of the Fifth International Fluid Power Conference. 20-22 March, 2006. Aachen, Germany.
[8]       Yu, K. H., Kwon, T. G., Yun, M. J. & Lee, S. C. (2002). Development of a Tactile Sensor Array with Flexible Structure Using Piezoelectric Film. Journal of Mechanical Science and Technology, 16(10), 1222-1228.
[9]       Zhang, Z., Breidtm, C., Chang, L., Haupert, F. & Friedrich, K. (2004). Enhancement of the wear resistance of epoxy: short carbon fiber, graphite, PTFE and nano-TiO2. Composite Part A: Applied Science and Manufacturing, 35(12), 1385-1392.