반도체디스플레이기술학회지 (Journal of the Semiconductor & Display Technology)

한국반도체디스플레이기술학회 (The Korean Society Of Semiconductor & Display Technology)
권호 표지

롤투롤 슬롯 다이 코터를 이용한 간헐 코팅 공정 개발

Development of Intermittent Coating Process Using Roll-to-roll Slot-die Coater

  • 정모세 (한국기술교육대학교 전기.전자.통신공학부) ;
  • 김기은 (한국기술교육대학교 전기.전자.통신공학부) ;
  • 나정필 (한국기술교육대학교 전기.전자.통신공학부) ;
  • 박종운 (한국기술교육대학교 전기.전자.통신공학부)
  • Mose Jung (School of Electrical, Electronic & Communication Engineering, Korea University of Technology and Education) ;
  • Gieun Kim (School of Electrical, Electronic & Communication Engineering, Korea University of Technology and Education) ;
  • Jeongpil Na (School of Electrical, Electronic & Communication Engineering, Korea University of Technology and Education) ;
  • Jongwoon Park (School of Electrical, Electronic & Communication Engineering, Korea University of Technology and Education)
  • 투고 : 2023.11.07
  • 심사 : 2023.12.12
  • 발행 : 2023.12.31
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초록

For the potential applications in large-area OLED lightings, hydrogen fuel cells, and secondary batteries, we have performed an intermittent coating of high-viscosity polydimethylsiloxane using roll-to-roll slot die coater. During intermittent coating, dead zones inevitably appear where the thickness of PDMS patch films becomes non-uniform, especially at the leading/trailing edge. To reduce it, we have coated the PDMS patches by varying the process parameters such as the installation angle of the slot die head, coating speed, and patch interval. It is observed that the PDMS solution flows down and thus the thickness profile is non-uniform for horizonal intermittent coating, whereas the PDMS solution remaining on the head lip causes an increase in the PDMS thickness at the leading/trailing edges for vertical intermittent coating when the coating velocity is low. As the coating speed increases, however, the dead zone is shown to be reduced. It is addressed that the overall dead zone (the dead zone at the leading edge + the dead zone at the trailing edge) is smaller with horizontal intermittent coating than with vertical intermittent coating.

키워드

과제정보

이 논문은 2023년도 한국기술교육대학교 교수 교육연구진흥과제 지원에 의하여 연구되었으며 또한 본 과제(결과물)는 2023년도 교육부의 재원으로 한국연구재단의 지원을 받아 수행된 지자체-대학 협력기반 지역혁신 사업의 결과입니다(2021RIS-004).

참고문헌

  1. X. Ding, J. Liu, and T. A. L. Harris, "A review of the operating limits in slot die coating processes," AIChE J., vol. 62, no. 7, pp. 2508-2524, 2016, doi: 10.1002/aic.15268.
  2. Y.-R. Chang, C.-F. Lin, and T.-J. Liu, "Start-up of slot die coating," Polym. Eng. Sci., vol. 49, no. 6, pp. 1158-1167, 2009, doi: 10.1002/pen.21360.
  3. G. Kim, J. Lee, D.-K. Shin, and J. Park, "Roll-to-Roll Fabrication of PEDOT:PSS Stripes Using Slot-Die Head With μ -Tips for AMOLEDs," IEEE Trans. Electron Devices, vol. 66, no. 2, pp. 1041-1049, Feb. 2019, doi: 10.1109/TED.2018.2887213.
  4. S. Kim, J. Lee, M. Jo, and C. Lee, "Numerical Modeling of Ink Widening and Coating Gap in Roll-to-Roll Slot-Die Coating of Solid Oxide Fuel Cell Electrolytic Layer," Polymers, vol. 12, no. 12, Art. no. 12, Dec. 2020, doi: 10.3390/polym12122927.
  5. P. Tan, S. Diao, T. Huang, Z. Yang, H. Zhou, and Y. Zhang, "Mechanism and Control of the Trailing Edge in Intermittent Slot Die Coating," Ind. Eng. Chem. Res., vol. 59, no. 35, pp. 15758-15767, Sep. 2020, doi: 10.1021/acs.iecr.0c02743.
  6. D. Maza and M. S. Carvalho, "Trailing edge formation during slot coating of rectangular patches," J. Coat. Technol. Res., vol. 14, no. 5, pp. 1003-1013, Sep. 2017, doi: 10.1007/s11998-017-9962-1.
  7. I. de Vries et al., "Recent Developments On Intermittent Coating".
  8. M. Schmitt, R. Diehm, P. Scharfer, and W. Schabel, "An experimental and analytical study on intermittent slot die coating of viscoelastic battery slurries," J. Coat. Technol. Res., vol. 12, no. 5, pp. 927-938, Sep. 2015, doi: 10.1007/s11998-015-9717-9.