Analysis on Aerodynamic Characteristics of Drying Process in R2R Printed Electronics

롤투롤 전자인쇄 건조공정의 공기역학적 특성분석

  • Seo, Yang-Ho (Department of Mechanical Design and Production Engineering, Graduate School of Konkuk Univ.) ;
  • Chang, Young-Bae (School of Mechanical and Aerospace Engineering, Oklahoma State Univ.) ;
  • Kim, Chang-Wan (Department of Mechanical Design and Production Engineering, Konkuk Univ.)
  • 서용호 (건국대학교 대학원 기계설계학과) ;
  • 장영배 (오클라호마주립대학교 기계항공공학부) ;
  • 김창완 (건국대학교 기계설계학과)
  • Published : 2010.03.01

Abstract

Roll to Roll (R2R) is one of the most promising production technologies in the printed electronics such as OLEDs, e-paper, backplanes, RFID because this technology can save production cost and increase production speed. Printed electronics includes various processes such as printing, drying, winding, unwinding, and so on. In printed electronics R2R system, air-flotation oven is employed for drying process. Therefore, it is essential to introduce efficient and fast drying process when printing is finished. This paper considers the analysis of drying process in R2R that involves hot air flow. Air-flotation oven consists of non-contact supports and drying of coated web materials such as plastic films and paper. In this paper, experimental results and numerical analysis of pressure-pad air bar are investigated. The aerodynamic characteristics of pressure-pad air bar are numerically calculated using computational fluid dynamics (CFD) approach. Then the measured values of the aerodynamic forces for air bars are compared with those of CFD analysis.

Keywords

References

  1. Chin, B. D. and Shin, K. H., "Device Technology of Flexible Organic Devices and Continuous Printing Process," Polymer Science and Technology, Vol. 18, No. 3, pp. 246-252, 2007.
  2. You, I. K., Koo, J. B. and Lee, Y. K., "Printed RFID Technology," ETRI, Analysis of Electronics and Telecommunications Trends, Vol. 22, No. 5, pp. 1-11, 2007.
  3. Roisum, D. R., "The Mechanics of Winding," Tappi Press, 1996.
  4. Roisum, D. R., "The Mechanics of Rollers," Tappi Press, 1996.
  5. Chang, Y. B. and Moretti, P. M., "Aerodynamic characteristic of Pressure-Pad Air Bars," The Fourth International Symposium on Fluid-structure Interaction, Aero-elasticity, Flow-Induced Vibration & Noise, Vol. 53-2, pp. 3-9, 1997.
  6. Chang, Y. B., Swanson, R. P. and Moretti, P. M., "Longitudinal and Out-of plane Stiffness of a Web in an Air-flotation oven," Proc. ASME, Noise Control and Acoustics Division, Vol. 26, pp. 435-443, 1999.
  7. Moretti, P. M., "Lateral Deflection of webs in Air-Flotation Ovens," ASME Journal of Applied Mechanics, Vol. 71, No. 3, pp. 314-320, 2004. https://doi.org/10.1115/1.1756922
  8. Pinnamaraju, R., "Measurements on Air Bar / Web Interaction for the Determination of Lateral Stability of a Web in flotation oven," M. S. Report, MAE Dept., Oklahoma State University, 1992.
  9. ANSYS Inc., "ANSYS-CFX User's Theory Guide," 2009.