Electrical Responses of Carbon Black Filled Silicone Rubber to Uniaxial Cyclic Loading

Abstract:

The electrical responses of carbon black filled silicone rubber to cyclic loading were investigated by electrical resistance measurements. Results indicated that the resistance of specimen appeared irreversible decrease in the earlier cycles of the first group test. The relation of the resistance and uniaxial cyclic loading are repeatable after 5 cycles while the irreversible micro-cracks are almost no longer generated. The resistance of each effective conductive path, the number of effective conductive path and average effective cross-sectional area of the insulating film between the adjacent conductive particles are key factors of the piezoresistivity.

• Periodical: Advanced Materials Research (Volumes 243-249)
• Pages: 5360-5364
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.243-249.5360
• Online since: May 2011
• Authors: Bo Liao, Guo Qing Zhou, Zhuo Dian Liu
• Keywords: Carbon Filled Silicone Rubber, Compression, Cyclic Loading, Electrical Resistance

References

[1] Knite M, Teteris V, Kiploka A, Kaupuzs J. Polyisoprene-carbon black nanocomposites as tensile strain and pressure sensor materials. Sensors and Actuators A Phys 2004; 110: 142-149

DOI: 10.1016/j.sna.2003.08.006

[2] Fu-Yu Chang, Ruoh-Huey Wang, Hsiharng Yang, et al. Flexible strain sensors fabricated with carbon nano-tube and carbon nano-fiber composite thin films. Thin Solid Films (2010)

DOI: 10.1016/j.tsf.2010.04.108

[3] Luheng Wang, Tianhuai Ding, Peng Wang. Effects of instantaneous compression pressure on electrical resistance of carbon black filled silicone rubber composite during compressive stress relaxation. Composites Science and Technology 2008; 68: 3448-3450

DOI: 10.1016/j.compscitech.2008.08.018

[4] Wang Luheng, Ding Tianhuai, Wang Peng. Influence of carbon black concentration on piezoresistivity for carbon-black-filled silicone rubber composite. Carbon 2009; 47: 3151-3157

DOI: 10.1016/j.carbon.2009.06.050

[5] K.P. Sau, T.K. Chaki, D. Khastgir. Carbon fibre filled conductive composites based on nitrile rubber (NBR), ethylene propylene diene rubber(EPDM) and their blend. Polymer 1998; 25: 6461-6471

DOI: 10.1016/s0032-3861(97)10188-4

[6] K. Yoshimura, K. Nakano, T. Miyake, et al. Effect of compressive and tensile strains on the electrical resistivity of carbon microcoil/silicone-rubber composites. Carbon 2007; 45: 1997-2003

DOI: 10.1016/j.carbon.2007.06.001

[7] Giang T. Pham, Young-Bin Park, Zhiyong Liang, et al. Processing and modeling of conductive thermoplastic/carbon nanotube films for strain sensing. Composites: Part B 2008; 39: 209-216

DOI: 10.1016/j.compositesb.2007.02.024

[8] Wang Luheng, Ding Tianhuai, Wang Peng. Effects of conductive phase content on critical pressure of carbon black filled silicone rubber composite. Sensors and Actuators A 2007; 135: 587-592

DOI: 10.1016/j.sna.2006.10.019

[9] Zhang XW, Pan Y, Zheng Q, Yi XS. Time dependence of piezoresistance for the conductor-filled polymer composites. J Polym Sci Part B: Polym Phys 2000; 38: 2739-2749

DOI: 10.1002/1099-0488(20001101)38:21<2739::aid-polb40>3.0.co;2-o

[10] X.S. Yi, Function Principle of Filled Conductive Polymer Composites, National Defence Industry Press, Beijing, 2004, p.39（in Chinese）

[11] Pu-Woei Chen, D.D.L. Chung. Carbon fiber reinforced concrete for smart structures capable of non-destructive flaw detection. Smart Material and Structures 1993; 2: 22~30

DOI: 10.1088/0964-1726/2/1/004