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Evaluation of Physical Properties of Prism Thin Films Using Micro-Indentation Analysis

마이크로-인덴테이션 분석을 이용한 프리즘 박막 필름의 물성 평가

  • Zo, Hye Jin (Department of Textile Industry, Dong-A University) ;
  • Park, Jong S. (Department of Textile Industry, Dong-A University)
  • 조혜진 (동아대학교 섬유산업학과) ;
  • 박종승 (동아대학교 섬유산업학과)
  • Received : 2012.08.12
  • Accepted : 2012.10.01
  • Published : 2012.10.31

Abstract

The micro-indentation analysis was employed as a measure to investigate the surface properties of prism films made of various UV-curable resins, whose measurement was compared to those of the scratch evaluation method. The anti-scratch property of prism film can be directly related to elastic recovery and indentation depth. The number of functionalities in reactive monomers is directly and inversely proportional to elastic modulus and indentation depth, respectively. The one-directional repeated-groove structure of the prism film increases the hydrophobicity, exhibiting very low moisture regain. Even such a small presence, however, significantly affects the surface properties of the prism. Consequently, the indentation depth increases, while the initial modulus decreases, leading to the severe damage of scratch resistance regarding patterned films.

Keywords

References

  1. W. Boentoro, A. Pflug, and B. Szyszka, “Scratch Resistance Analysis of Coatings on Glass and Polycarbonate”, Thin Solid Films, 2009, 517, 3121-3125. https://doi.org/10.1016/j.tsf.2008.11.119
  2. J. S. S. Wong, H. J. Sue, K. Y. Zeng, R. K. Y. Li, and Y. W. Mai, “Scratch Damage of Polymers in Nanoscale”, Acta Mater, 2004, 52, 431-443. https://doi.org/10.1016/j.actamat.2003.09.028
  3. T. Kocha and D. Machl, “Evaluation of Scratch Resistance in Multiphase PP Blends”, Polym Test, 2007, 26, 927-936. https://doi.org/10.1016/j.polymertesting.2007.06.006
  4. J. W. Lim and J. H. Yim, "A Study on the Synthesis of Organic-Inorganic Hybrid Waterborne Polyurethane by Using Graft Type Siloxane Polyol", Polym-Korea, 2009, 33, 569-574.
  5. H. Jiang, R. Browning, J. Fincher, A. Gasbarro, S. Jones, and H. J. Sue, “Influence of Surface Roughness and Contact Load on Friction Coefficient and Scratch Behavior of Thermoplastic Olefins”, Appl Surf Sci, 2008, 254, 4494- 4499. https://doi.org/10.1016/j.apsusc.2008.01.067
  6. M. W. Wang and C. C. Tseng, “Analysis and Fabrication of a Prism Film with Roll-To-Roll Fabrication Process”, Opt Express, 2009, 17, 4718-4725. https://doi.org/10.1364/OE.17.004718
  7. H. K. Seo, Y. S. Ryu, J. Choi, K. S. Hahn, and S. C. Kim, “Optimization Method for the Design of LCD Back-Light Unit”, J Inf Dis, 2005, 32, 133-147.
  8. D. R. Kim and H. I. Kim, "Improvement of Brightness in UV Curing Type Prism Sheet by Using Aromatic Groups", Polym-Korea, 2009, 33, 413-419.
  9. K. Jeon and K. Ryoo, "A Study on Manufacturing of LCD Prism Sheets through Silicon Anisotropic Etching", J Korean Inst Met Ma, 2008, 46, 377-381.
  10. D. Feng, Y. B. Yan, X. P. Yang, G. F. Jin, and S. H. Fan, "Novel Integrated Light-Guide Plates for Liquid Crystal Display Backlight", J Opt A-Pure Appl Op, 2005, 7, 111-117. https://doi.org/10.1088/1464-4258/7/3/003
  11. X. Li and B. Bhushan, “Micro/Nanomechanical Characterization of Ceramic Films for Microdevices”, Thin Solid Films, 1999, 340, 210-217. https://doi.org/10.1016/S0040-6090(98)01153-5
  12. A. Hodzic, J. K. Kim, and Z. H. Stachurski, “Nano-Indentation and Nano-Scratch of Polymer/Glass Interfaces. II: Model of Interphases in Water Aged Composite Materials”, Polymer, 2001, 42, 5701-5710. https://doi.org/10.1016/S0032-3861(01)00029-5
  13. A. Hodzica, Z. H. Stachurski, and J. K. Kim, "Nano- Indentation and Nano-Scratch of Polymer/Glass Interfaces. Part I. Experimental and Mechanical Analysis", Polymer, 2000, 41, 6895-6905. https://doi.org/10.1016/S0032-3861(99)00890-3
  14. I. P. Orench, S. Putthanarat, F. J. B. Calleja, R. K. Eby, and M. Stone, “Ultra-Microindentation at the Surface of Silk Membranes”, Polymer, 2004, 45, 2041-2044. https://doi.org/10.1016/j.polymer.2003.12.069
  15. D. K. Kim, J. K. Lim, W. G. Kim, and J. L. Heo, “Synthesis and Properties of Photocurable Pentaerythritol Modified Hyperbranched Acrylate”, Polym-Korea, 2005, 29, 237-241.
  16. C. C. Chang and W. C. Chen, “Synthesis and Optical Properties of Polyimide-Silica Hybrid Thin Films”, Chem Mater, 2002, 14, 4242-4248. https://doi.org/10.1021/cm0202310
  17. H. R. Brown and T. P. Russell, "Entanglement at Polymer Surfaces and Interfaces", Macromolecules, 1996, 29, 798-800. https://doi.org/10.1021/ma951123k
  18. T. Kajiyama, K. Tanaka, and A. Takahara, “Surface Molecular Motion of the Monodisperse Polystyrene Films”, Macromolecules, 1997, 30, 280-285. https://doi.org/10.1021/ma960582y
  19. B. Bhushan and X. D. Li, “Nanomechanical Characterisation of Solid Surfaces and Thin Films”, Int Mater Rev, 2003, 48, 125-164. https://doi.org/10.1179/095066003225010227
  20. C. Gauthier and R. Schirrer, “Time and Temperature Dependence of the Scratch Properties of Poly(methylmethacrylate) Surfaces”, J Mater Sci, 2000, 35, 2121. https://doi.org/10.1023/A:1004798019914
  21. K. Takeda, M. Sasaki, N. Kieda, K. Katayama, T. Kako, K. Hashimoto, T. Watanabe, and A. Nakajima, “Preparation of Transparent Super-Hydrophobic Polymer Film with Brightness Enhancement Property”, J Mater Sci, 2001, 20, 2131-2133.
  22. M. Barletta, G. Rubino, L. Lusvarghi, and F. P. Mantini, “Surface Appearance and Mechanical Strength of Multi- Layer Polymeric Films”, Prog Org Coat, 2008, 61, 249-261. https://doi.org/10.1016/j.porgcoat.2007.09.028