DOI QR코드

DOI QR Code

Replication of Polyethylene Nano-Microstructures Using Ultrasonic Forming

초음파성형을 이용한 폴리에틸렌 나노 마이크로 구조물의 복제

  • 이치훈 (부산대학교 기계공학부) ;
  • 유현우 (부산대학교 기계공학부) ;
  • 신보성 (부산대학교 정밀정형및금형가공연구소) ;
  • 고종수 (부산대학교 기계공학부, 부산대학교 정밀정형및금형가공연구소)
  • Published : 2009.11.01

Abstract

Nano-micro hierarchical structures that nanoprotrusions were formed on the network-type microstructures were fabricated using an ultrasonic vibration forming technology. A commercial ultrasonic welding system was used to apply ultrasonic vibration energy. To evaluate the formability of ultrasonic vibration forming, nickel nano-micro hierarchical mold was fabricated and polyethylene (PE) was used as the replication material. The optimal molding time was 3.5 sec for PE nano-micro hierarchical structures. The molding process was conducted at atmospheric pressure.

Keywords

Ultrasonic Forming;Polymer Replication;Nanoprotrusion;Microstructure;Polyethylene

References

  1. Xi-Qing Sun, T. Masuzawa and M. Fujino, 1996, 'Micro Ultrasonic Machining and Self-Aligned Multilayer Machining/Assembly Technologies for 3D Micromachines,' Proceedings of the IEEE Workshop on MEMS, pp. 312-317 https://doi.org/10.1109/MEMSYS.1996.494000
  2. Lin, C. H. and Chen, R., 2006, 'Ultrasonic Nanoimprint Lithography: a New Approach to Nanopatterning,' Journal of Microlithgraphy, Microfabrication and Microsystems, Vol. 5, No. 1, pp. 011003-1-6 https://doi.org/10.1117/1.2172992
  3. Mekaru, H., Goto, H. and Takahashi, M., 2006, 'Development of Ultrasonic Micro Hot Embossing Technology,' Microelectronic Engineering, Vol. 84, issues 5-8, pp. 1282-1287 https://doi.org/10.1016/j.mee.2007.01.235
  4. Mekaru, H., Noguchi, T., Goto, H. and Takahashi, M., 2008, 'Effect of Applying Ultrasonic Vibration in Thermal Nanoimprint Lithography,' Microsystem Technologies, pp. 1432-1858(Online) https://doi.org/10.1007/s00542-007-0512-0
  5. Tang, Y., Tan, W. K., Fuh, J. Y. H., Loh, H. T., Wong, Y. S., Thian, S. C. H. and Lu, L., 2007, 'Micro-Mould Fabrication for a Micro-Gear via Vacuum Casting,' Journal of Materials Processing Technology, Vol. 192-193, pp. 334-339 https://doi.org/10.1016/j.jmatprotec.2007.04.098
  6. Kang, X., Zi, W. W., Xu, Z. G. and Zhang, H. L., 2007, 'Controlling the Micro/Nanostructure of Self-Cleaning Polymer Coating,' Applied Surface Science, Vol. 253, pp. 8830-8834 https://doi.org/10.1016/j.apsusc.2007.04.021
  7. Koerner, T., Brown, L., Xie, R. and Oleschuk, R. D., 2005, 'Epoxy Resins as Stamps for Hot Embossing of Microsturctures and Microfluidic Channels,' Sensors and Actuators B, Vol. 107, pp. 632-639 https://doi.org/10.1016/j.snb.2004.11.035
  8. Nagaraja, P. and Yao, D., 2007, 'Rapid Pattern Transfer of Biomimetic Surface Structures onto Thermoplastic Polymers,' Materials Science & Engineering C, Vol. 27, pp. 794-797 https://doi.org/10.1016/j.msec.2006.08.021
  9. Bariani, P. F., Salvador, M. and Lucchetta, G., 2007, 'Development of a Test Method for the Rheological Characterization of Polymers Under the Injection Molding Process Conditions,' Journal of Materials Processing Technology, Vol. 191, pp. 119-122 https://doi.org/10.1016/j.jmatprotec.2007.03.089
  10. Song, M. C., Liu, Z., Wang, M. J., Yu, T. M. and Zhao, D. Y., 2007, 'Research on Effects of Injection Process Parameters on the Molding Process for Ultra-Thin Wall Plastic Parts,' Journal of Materials Processing Technology, Vol. 187-188, pp. 668-671 https://doi.org/10.1016/j.jmatprotec.2006.11.103
  11. Nonhof, C. J. and Luiten, G. A., 1996, 'Estimates for Process Conditions During the Ultrasonic Welding of Thermoplastics,' Polymer Engineering and Science, Vol. 36, No. 9, pp. 1177-1183 https://doi.org/10.1002/pen.10511
  12. Jung, I. D., Cho, M. K., Lee, S. M., Bae, K. M., Jung, P. G., Lee, C. H., Lee, J. M., Yun, S. M., Kim, H. K., Kim, S. S. and Ko, J. S., 2009, 'Flexible $Gd_{2}O_{2}S$:Tb Scintillators Pixelated with Polyethylene Microstructures for Digital x-Ray Image Sensors,' Journal of Micromechanics and Microengineering, Vol. 19, pp. 015014 https://doi.org/10.1088/0960-1317/19/1/015014
  13. Jung, S. N., Kang, C. K., Jung, I. D., Lee, S. M., Jung, P. G. and Ko, J. S., 2008, 'Fabrication of Curved Copper Micromesh Sheets Using Flexible PDMS Molds,' Microsystem Technologies, Vol. 14, pp. 829-833 https://doi.org/10.1007/s00542-008-0599-y
  14. Lee, S. M. and Kwon, T. H., 2007, 'Effect of Intrinsic Hydrophobic on Wettability of Polymer Replicas of a Superhydrophobic Lotus Leaf,' Journal of Micromechanics and Microengineering, Vol. 17, pp. 687-92 https://doi.org/10.1088/0960-1317/17/4/003
  15. Jung, Y. C. and Bhushan, B., 2006, 'Contact Angle, Adhesion and Friction Properties of Micro- and Nanopatterned Polymers for Superhydrophobicity,' Nanotechnology, Vol. 17, pp. 4970-4980 https://doi.org/10.1088/0957-4484/17/19/033
  16. Lee, Y., Park, S. H., Kim, K. B. and Lee, J. K., 2007, 'Fabrication of Hierarchical Structures on a Polymer Surface to Mimic Natural Superhydrophobic Surfaces,' Advanced Materials, Vol. 19, pp. 2330-2335 https://doi.org/10.1002/adma.200700820
  17. Bormashenko, E., Stein, T., Whyman, G., Bormashenko, Y. and Pogreb, R., 2006, 'Wetting Properties of the Multiscaled Nanostructured Polymer and Metallic Superhydrophobic Surfaces,' Langmuir, Vol. 22, pp. 9982-9985 https://doi.org/10.1021/la061622m
  18. Barthott, W. and Neinhuis, C., 1997, 'Purity of the Sacred Lotus, or Escape from Contamination in Biologica Surfaces,' Planta, Vol. 202, pp. 1-8 https://doi.org/10.1007/s004250050096
  19. Tolunay, M. N. and Dawson, P. R., 1983, 'Heating and Bonding Mechanisms in Ultrasonic Welding of Thermoplastics,' Polymer Engineering and Science, Vol. 23, No. 13, pp. 726-733 https://doi.org/10.1002/pen.760231307
  20. Lee, S. M., Jung, I. D. and Ko, J. S., 2008, 'The Effect of the Surface Wettability of Nanoprotrusions Formed on Network-Type Microstructures,' Journal of Micromechanics and Microengineering, Vol. 18, pp. 125007 https://doi.org/10.1088/0960-1317/18/12/125007
  21. Kang, C. K., Lee, S. M., Jung, I. D., Jung, P. G., Hwang, S. J. and Ko, J. S., 2008, 'The Fabrication of Patternable Silicon Nanotips Using Deep Reactive Ion Etching,' Journal of Micromechanics and Microengineering, Vol. 18, pp. 075007 https://doi.org/10.1088/0960-1317/18/7/075007
  22. Benatar, A. and Eswaran, R. V., 1989, 'Ultrasonic Welding of PEEK Graphite APC-2 Composites,' Polymer Engineering and Science, Vol. 29, No. 23, pp. 1705-1721 https://doi.org/10.1002/pen.760292313
  23. Gale, M. T., 1997, 'Replication Technology for Diffractive Optical Elements,' Microelectronic Engineering, Vol. 34, pp. 321-339 https://doi.org/10.1016/S0167-9317(97)00189-5
  24. Yu, H. W., Lee, C. H., Ko, J. S., Shin, B. S. and Rho, C. H., 2008, 'Polymer Replication Using Ultrasonic Vibration,' KSME-A, Vol. 32, No. 5, pp. 419-423 https://doi.org/10.3795/KSME-A.2008.32.5.419
  25. Plastics Design Library, 1997, 'Ultrasonic Welding,' Handbook of Plastics Joining, The Library, Norwich, New York, pp. 37-66