Elastic layered rubber-graphene composite fabricated by rubbing-in technology for the multi-functional sensors

Kh S Karimov; Zubair Ahmad; M Imran Khan; Khalid J Siddiqui; T A Qasuria; S Zameer Abbas; M Usman; Aziz-Ur Rehman

doi:10.1016/j.heliyon.2019.e01187

Elastic layered rubber-graphene composite fabricated by rubbing-in technology for the multi-functional sensors

Heliyon. 2019 Jan 31;5(1):e01187. doi: 10.1016/j.heliyon.2019.e01187. eCollection 2019 Jan.

Authors

Kh S Karimov^{1

2}, Zubair Ahmad³, M Imran Khan¹, Khalid J Siddiqui¹, T A Qasuria¹, S Zameer Abbas¹, M Usman⁴, Aziz-Ur Rehman¹

Affiliations

¹ Ghulam Ishak Khan Institute of Engineering Science & Technology, Topi, District Swabi, Pakistan.
² Centre for Innovative and New Technologies of Academy of Sciences of the Republic of Tajikistan, 734015, Rudaki Ave., 33., Dushanbe, Tajikistan.
³ Centre for Advanced Materials (CAM), Qatar University, P.O. Box 2713, Doha, Qatar.
⁴ Experimental Physics Department, National Centre for Physics, P.O. Box 45320, Islamabad, Pakistan.

Abstract

In this work, the elastic layered rubber-graphene composite based multi-functional sensor has been fabricated by rubbing-in technology. The effects of temperature, displacement, pressure and humidity on the impedance of the multi-functional sensor has been investigated in the frequency range of 0-200 kHz. The impedance of the samples decreased under the effect of uniaxial compressive displacement and under the effect of pressure. The temperature coefficient of the samples was found to be -0.836 and -0.862 %/°C with the increase in temperature from 29 °C to 54 °C, respectively, while the impedance of the samples decreased 1.26 ± 0.01 times with the increase in temperature from 29 °C to 54 °C while, respectively. The humidity dependent cross-sensitivity of the samples was investigated in the relative humidity range of (58-93) %RH and no effect of humidity on the performance of the sensor has been observed. The elastic layered rubber-graphene composite potentially can be used as displacement, frequency, temperature and pressure sensors.

Keywords: Materials science.