화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.30, No.5, 1013-1022, May, 2013
DOI10.1007/s11814-013-0035-6  Export Citation
Effect of organoclay on non-linear rheological properties of poly(lactic acid)/poly(caprolactone) blends
Reza Salehiyan, and Kyu Hyun†
  • School of Chemical and Biomolecular Engineering, Pusan National University, Busan 609-735, Korea
E-mail:
The nonlinear viscoelastic properties of PLA/PCL blends with and without clay (montmorillonite, MMT) under large amplitude oscillatory shear (LAOS) flow were investigated. The G' and G'' as a function of strain amplitude, Lissajous plots and FT-rheology methods were used to interpret nonlinear behavior of PLA/PCL blends with and without MMT. Additionally, scanning electron microscopy (SEM) images of PLA/PCL with MMT blends were taken to investigate the effects of clay on the internal structure of the PLA/PCL blends. A relationship between morphological changes and linear and nonlinear rheological properties was observed. SEM image analysis revealed that clay acted as a compatibilizer and then reduced the size of droplets in the PCL domain of the PLA matrix. As a result, nonlinear properties sensitively reflect morphological changes with increasing MMT amount. The nonlinear rheological properties of PLA/ PCL/MMT/metallocene-LLDPE (mLLDPE) were also investigated when mLLDPE was used as an impact modifier to improve mechanical properties, and the nonlinear rheological properties of PLA/PCL/MMT and PLA/PCL/MMT/mLLDPE were also compared.
Keywords:LAOS;Nonlinear Viscoelastic Properties;FT-rheology;PLA/PCL Blends;PLA/PCL/MMT;PLA/PCL/MMT/mLLDPE
  1. Ray SS, Bousmina M, Prog. Mater. Sci., 50, 962 (2005)
  2. Ray SS, Okamoto M, Prog. Polym., Sci., 28, 1539 (2003)
  3. Jacobsen S, Degee PH, Fritz HG, Dubois PH, Jerome R, Polym. Eng. Sci., 39(7), 1311 (1999)
  4. Jung JS, Liu X, Choi HS, Korean Chem. Eng. Res., 47(1), 59 (2009)
  5. Rasal RM, Hirt DE, J. Biomed. Mater. Res. Part A., 88A, 1079 (2008)
  6. Chen CC, Chueh JY, Tseng H, Huang HM, Lee SY, Biomaterials., 24, 1167 (2003)
  7. Di YW, Iannace S, Di Maio E, Nicolais L, J. Polym. Sci. B: Polym. Phys., 41(7), 670 (2003)
  8. Liu H, Han CY, Dong LS, J. Appl. Polym. Sci., 115(5), 3120 (2010)
  9. Tortora M, Vittoria V, Galli G, Ritrovati S, Chiellini E, Macromol.Mater. Eng., 287, 243 (2002)
  10. Ferry JD, Viscoelastic properties of polymers, Wiley, New York (1980)
  11. Bird RB, Armstrong RC, Hassager O, Dynamics of polymeric liquids, Wiley, New York (1987)
  12. Wu D, Zhang Y, Zhang M, Zhou W, Eur. Polym. J., 44, 2171 (2008)
  13. Wu DF, Zhang YS, Yuan LJ, Zhang M, Zhou WD, J. Polym. Sci. B: Polym. Phys., 48(7), 756 (2010)
  14. Sabet SS, Katbab AA, J. Appl. Polym. Sci., 111(4), 1954 (2009)
  15. Ahmed J, Varshney SK, Auras R, J. Food Sci., 75, 17 (2010)
  16. Li K, Peng J, Turng LS, Huang HX, Adv. Polym. Technol., 30(2), 150 (2011)
  17. Krishnamoorti R, Giannelis EP, Macromolecules, 30(14), 4097 (1997)
  18. Hatzikiriakos SG, Polym. Eng. Sci., 40(11), 2279 (2000)
  19. Gabriel C, Kokko E, Lofgren B, Seppala J, Munstedt H, Polymer, 43(24), 6383 (2002)
  20. Neidhofer T, Sioula S, Hadjichristidis N, Wilhelm M, Macromol. Rapid Commun., 25(22), 1921 (2004)
  21. Hyun K, Kim SH, Ahn KH, Lee SJ, J. Non-Newton. Fluid Mech., 107(1-3), 51 (2002)
  22. Hyun K, Nam JG, Wilhelm M, Ahn KH, Lee SJ, Korea-Aust. Rheol. J., 15(2), 97 (2003)
  23. Kim SH, Hyun K, Moon TS, Mitsumata T, Hong JS, Ahn KH, Lee SJ, Polymer, 46(18), 7156 (2005)
  24. Sugimoto M, Koizumi T, Taniguchi T, Koyama K, Saito K, Nonokawa D, Morita T, J. Polym. Sci. B: Polym. Phys., 47(22), 2226 (2009)
  25. Vittorias I, Parkinson M, Klimke K, Debbaut B, Wilhelm M, Rheol. Acta., 46, 321 (2007)
  26. Vittorias I, Lilge D, Baroso V, Wilhelm M, Rheol. Acta, 50(7-8), 691 (2011)
  27. Hyun K, Wilhelm M, Klein C, Cho KS, Nam JG, Ahn KH, Lee SJ, Ewoldt R, McKinley GH, Prog. Polym. Sci., 36, 1697 (2011)
  28. Wilhelm M, Maring D, Spiess HW, Rheol. Acta, 37(4), 399 (1998)
  29. Filipe S, Cidade MT, Wilhelm M, Maia JM, J. Appl. Polym.Sci., 99, 347 (2004)
  30. Carotenuto C, Grosso M, Maffettone PL, Macromolecules, 41(12), 4492 (2008)
  31. Wu D, Wu L, Wu L, Zhang M, Polym. Degrad. Stabil., 91, 3149 (2006)
  32. Ewoldt RH, Hosoi AE, McKinley GH, J. Rheol., 52(6), 1427 (2008)
  33. Wilhelm M, Reinheimer P, Ortseifer M, Rheol. Acta, 38(4), 349 (1999)
  34. Lim HT, Ahn KH, Lee SJ, Hong JS, Hyun K, J. Rheol., Submitted (2012)
  35. Hyun K, Lim HT, Ahn KH, Korea-Aust. Rheol. J., 24(2), 113 (2012)
  36. Balakrishnan H, Hassan A, Wahit MU, Yussuf AA, Razak SBK, Mater. Des., 31, 3289 (2010)
  37. Cardenas MA, Perera R, Villarreal N, RosaleS C, Pastor JM, J. Appl. Polym. Sci., 106(4), 2298 (2007)