Journal of Adhesion and Interface (접착 및 계면)

The Society of Adhesion and Interface, Korea (한국접착및계면학회)
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Waterborne Core-shell Pressure Sensitive Adhesive (PSA) Based on Polymeric Nano-dispersant

고분자 분산제를 이용한 Core-shell 수성 감압점착제

  • Lee, Jin-Kyoung (Department of Polymer Science and Engineering, Inha University) ;
  • Chin, In-Joo (Department of Polymer Science and Engineering, Inha University)
  • 이진경 (인하대학교 고분자공학과) ;
  • 진인주 (인하대학교 고분자공학과)
  • Received : 2016.04.18
  • Accepted : 2016.09.20
  • Published : 2016.09.30
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Abstract

An environmentally friendly water-based pressure sensitive adhesive (PSA) was designed in an attempt to replace the solvent-based adhesive for dry lamination used in flexible food packaging films. Instead of using a low molecular weight surfactant, which may have variable material properties, a high molecular weight dispersant was used for emulsification. A polymeric nano-dispersant (PND) was synthesized using solution polymerization, and it was used as a micelle seed in the surfactant, resulting in the synthesis of a core/shell grafted acrylic adhesive. The shell and core exhibited different $T_g$ values, so that the initial adhesion strength and holding power were complemented by the film's flexibility, which is required to provide good adhesion of thin films. Results showed that the PSA designed in this study using the PND instead of traditional low molecular weight surfactant had adhesive properties applicable to the flexible packaging with appropriate tack.

유연한 식품포장필름에 사용되고 있는 드라이 라미네이션용 유성접착제를 대체하기 위해, 고분자 분산제를 사용하여 유화하는 방법으로 수성 감압점착제를 친환경적으로 설계하였다. 유화중합에서 널리 사용하는 저분자량의 계면활성제는 물성의 변수로 작용해 왔다. 본 연구에서는 먼저 용액중합으로 polymeric nano-dispersant (PND)를 제조하고, 이 PND 입자들의 분산제를 micelle seed로 이용하여 core-shell grafted acrylic 점착제를 합성하였다. 이때 입자의 바깥층(shell)과 입자내층(core)의 $T_g$를 달리하여 얇은 필름의 점착조건인 초기접착력과 유지력의 균형을 이루도록 설계하였다. 최적화된 시험군 합성 점착제의 물성을 국내외 제조사에서 개발된 연구시료들과 비교분석하여, 점착제로서의 물성을 검토하였다. 물성 비교 결과, 본 연구에서 설계 합성한 저분자량의 계면활성제를 대체 사용한 고분자 나노분산제 기반 core-shell 점착제가 연포장에 적합한 점착물성을 나타냄을 확인하였다.

Keywords

References

  1. D. G. Oh, K. H. Lee, W. T. Kim, B. H. Min, D. W. Chung, J. D. Lee, and J. H. Kim, J. Korean Ind. Eng. Chem., 19, 370 (2008).
  2. J. C. Delacal and J. M. Asua, J. Polym. Sci., Part A : Polym. Chem., 39, 585 (2001). https://doi.org/10.1002/1099-0518(20010215)39:4<585::AID-POLA1029>3.0.CO;2-4
  3. I. Piirma, Emulsion Polymerization, Academic Press, New York, 221 (1982).
  4. M. C Park and M. C Lee, Polymer(Korea), 27(6), 596 (2003).
  5. C. M. Gilmore, G. W. Poehlein, and F. J. Schork, J. Appl. Polym. Sci., 48, 1449 (1993). https://doi.org/10.1002/app.1993.070480814
  6. Yujinpolytech, Korea Patent 10-2004-0055247 (2004).
  7. I. Piirma, Polymer Surfactant, Marcel Academic Press, New York (1982).
  8. D. G. Oh and J. H. Kim, Clean Technology, 13, 208 (2007).
  9. X. Wang, E. D Sudol, and M. S. El-Aasser, J. Polym. Sci. A: Polym. Chem., 39(18), 3093 (2001). https://doi.org/10.1002/pola.1290
  10. I. Piirma, Polymeric Surfactant, in Surfactant Science Series, ed. I. Piirma, 42, 1, Marcel Dekker, New York (1992).
  11. K. C. Lee, M. A. Winnik, and T. C. Jao, J. Appl. Polym. Sci., 32, 2333 (1994). https://doi.org/10.1002/pola.1994.080321215
  12. O. Percan, M. A. Winnik, and M. D. Croucher, J. Polym. Sci., Polym. Lett. Ed., 21, 1011 (1983).
  13. Z. Liu and B. W. Brooks, Polymer, 40, 2181 (1999). https://doi.org/10.1016/S0032-3861(98)00458-3
  14. A. Samakande, P. C. Hartmann, M. Cloete, and R. D. Sanderson, Polymer., 48, 1490 (2007). https://doi.org/10.1016/j.polymer.2006.07.072
  15. J. Stejskal, M. Spirkova, A. Riede, M. Helmstedt, P. Mokreva, and J. Prokes., Polymer, 40, 2487 (1999). https://doi.org/10.1016/S0032-3861(98)00478-9
  16. D. G. Oh, K. H. Lee, W. T. Kim, B. H. Min, D. W. Chung, J. D. Lee, and J. H. Kim, J. Korean Ind. Eng. Chem., 19, 370 (2008).
  17. M. C. Park and M. C. Lee, J. Korea Ind Eng. Chem., 15, 49 (2004).
  18. J. Richard and J. Maquet, Polymer, 33, 4164 (1992). https://doi.org/10.1016/0032-3861(92)90622-4
  19. Y. Rharbi, F. Boue, M. Joanicot, and B. Cabane, Macromolecules, 29, 4346 (1996). https://doi.org/10.1021/ma951142u
  20. C. S. Kan and J. H. Blackson, Macromolecules, 29, 6853 (1996). https://doi.org/10.1021/ma9515487
  21. J. R. Feng and M. A. Winnik, Macromolecules, 30, 4324 (1997). https://doi.org/10.1021/ma970174+
  22. Y. Reyes-Mercado, F. Vazquez, F. J. Rodriguez-Gomez, and Y. Duda, Colloid Polym. Sci., 286, 603 (2008). https://doi.org/10.1007/s00396-008-1838-6
  23. Rohm & Hass company, Korea Patent 10-2004-0031735 (2004).
  24. Rohm & Hass company, Korea Patent 10-2003-0096102 (2003).
  25. Rohm & Hass company, Korea Patent 10-2003-0038535(2003).
  26. Rohm & Hass company, Korea Patent 10-2003-0038551(2003).
  27. ASTM D3643-2010, Standard test method for acid number of certain alkali-soluble resins.
  28. T. Wang, E. Canetta, T. G. Weerakkody, and J. L. Keddie, ACS Applied Materials & Interfaces, 1(3), 631 (2009). https://doi.org/10.1021/am800179y

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  1. 스티렌페놀계 계면활성제 기반 친환경 수계 점착제 합성 및 특성 분석 vol.21, pp.4, 2016, https://doi.org/10.17702/jai.2020.21.4.156