Elastomers and Composites

The Rubber Society of Korea (한국고무학회)
권호 표지
DOI QR코드

DOI QR Code

Research on Capacitive Tactile Sensor for Electronic Skin using Natural Rubber and Nitrile Butadiene Rubber

  • Sangmin Ko (Preceding Research Team, Dong Il Rubber Belt) ;
  • Dasom Park (Preceding Research Team, Dong Il Rubber Belt) ;
  • Sangkyun Kim (Preceding Research Team, Dong Il Rubber Belt)
  • Received : 2023.11.08
  • Accepted : 2023.12.04
  • Published : 2023.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

Recently, there has been a significant focus on the development of flexible and stretchable sensors, driven by advancements in electronic devices and the robotics industry. Among these sensors, tactile sensors stand out as the most actively researched, playing a crucial role in facilitating interaction between humans and electronic devices, particularly in robotics and medical applications. This study specifically involves the manufacturing of a capacitive tactile sensor using a relatively straightforward process and sensor structure. Natural rubber and Nitrile butadiene rubber, commonly employed in the rubber industry, were utilized. The dielectric material in the manufactured tactile sensor possesses a porous structure. Notably, the resulting tactile sensor demonstrated excellent sensitivity, approximately 1%/kPa, and exhibited the capability to detect pressures up to 212 kPa.

Keywords

References

  1. W. Chen and X. Yan, "Progress in achieving high-performance piezoresistive and capacitive flexible pressure sensors : A review", J. Mater. Sci. Technol., 43, 175 (2020).
  2. J. C. Tang, J. Mun, S. Y. Kwon, S. Park, Z. Bao, and S. Park, "Electronic skin: recent progress and future prospects for skin-attachable devices for health monitoring, robotics and prosthetics", Adv. Mater., 31, 1904765 (2019).
  3. U. P. Claver and G. Zhao, "Recent progress in flexible pressure sensors based electronic skin", Adv. Eng. Mater., 23, 2001187 (2021).
  4. H. S. Kim and S. Y. Choi, "A study on the manufacturing of celluar rubber products with NR, NBR and EPDM", Journal of the Korea Institute of Rubber Industry, 29, 213 (1994).
  5. R. Powell, "Introduction to electric circuits", Elsevier, 2011, chapters 7, pp. 269-275.
  6. J. Bird, "Electrical circuit theory and technology", Newnes, 2003, chapters 15, pp. 213-234.
  7. B. Li, Z. J. Lin, S. R. Ryu, and D. J. Lee, "Effects of thickness, elastomer types and thinner content on actuation performance of electro active dielectric elastomers", Composites Research, 27, 25 (2014).
  8. K. Ke, M. McMaster, W. Christopherson, K. D. Singer, and I. M. Zloczower, "Highly sensitive capacitive pressure sensors based on elastomer composites with carbon filler hybrids", Compos. Part A Appl. Sci. Manuf, 126, 105614 (2019).
  9. Y. Zhu, X. Chen, K. Chu, X. Wang, Z. Hu, and H. Su, "Carbon black/PDMS Based flexible capacitive tactile sensor for multi-directional force sensing", Sensors, 22, 628 (2022).
  10. B. J. Lee, S. J. Kim, and H. M. Yoo, "Effects of carbon black on mechanical properties and curing behavior of liquid silicone rubber", Design & Manufacturing, 17, 27 (2023).