Structure-property relationship of melt intercalated maleated polyethylene nanocomposites

  • Reddy, M.M. (Rheology and Materials Processing Centre, School of Civil, Environmental and Chemical Engineering, RMIT University) ;
  • Gupta, Rahul K. (Rheology and Materials Processing Centre, School of Civil, Environmental and Chemical Engineering, RMIT University) ;
  • Bhattacharya, S.N. (Rheology and Materials Processing Centre, School of Civil, Environmental and Chemical Engineering, RMIT University) ;
  • Parthasarathy, R. (Rheology and Materials Processing Centre, School of Civil, Environmental and Chemical Engineering, RMIT University)
  • 발행 : 2007.11.30

초록

Low density polyethylene nanocomposites were prepared by melt intercalating maleic anhydride grafted polyethylene and montmorillonite clay. It has been found that maleic anhydride has promoted strong interactions between polyethylene and montmorillonite, leading to the homogeneous dispersion of clay layers. Rheological experiments revealed that prepared nanocomposites exhibited shear thinning behaviour. Polyethylene nanocomposites exhibited an increase in steady shear viscosities compared to virgin polyethylene owing to strong polymer clay interactions. The tensile strength of nanocomposites was improved but elongation at break decreased considerably. Also, barrier properties improved significantly with montmorillonite content.

키워드

참고문헌

  1. Alexandre, M. and P. Dubois, 2000, Polymer-layered silicate nanocomposites: preparation, properties and uses of a new class of materials, Materials Science and Engineering 28(1-2), 1-63 https://doi.org/10.1016/0025-5416(77)90085-4
  2. Alexandre, M., P. Dubois, T. Sun, J.M. Garces and R. Jerome, 2002, Polyethylene-layered silicate nanocomposites prepared by the polymerization-filling technique: synthesis and mechanical properties, Polymer 43(8), 2123-2132 https://doi.org/10.1016/S0032-3861(02)00036-8
  3. Chodak, I. and I. Krupa, 1999, Percolation effect and mechanical behavior of carbon black filled polyethylene, Journal of Materials Science Letters 18(18), 1457-1459 https://doi.org/10.1023/A:1006665527806
  4. Gilman, J.W., T. Kashiwagi, J.E.T. Brown, S. Lomakin, E.P. Giannelis and E. Manias, 1998, Flammability studies of polymer layered silicate nanocomposites, Materials and process affordability-Keys to the future 1, 1053-1066
  5. Gopakumar, T.G., J.A. Lee, M. Kontopoulou and J.S. Parent, 2002, Influence of clay exfoliation on the physical properties of montmorillonite/polyethylene composites, Polymer 43(20), 5483-5491 https://doi.org/10.1016/S0032-3861(02)00403-2
  6. Gupta, R.K., V. Pasanovic-Zujo and S.N. Bhattacharya, 2006, Shear and extensional rheology of EVA/layered silicatenanocomposites, Journal of Non-Newtonian Fluid Mechanics 128, 116-125 https://doi.org/10.1016/j.jnnfm.2005.05.002
  7. Hotta, S. and D.R. Paul, 2004, Nanocomposites formed from linear low density polyethylene and organoclays, Polymer 45(22), 7639-7654 https://doi.org/10.1016/j.polymer.2004.08.059
  8. Jacquelot, E., E. Espuche, J.F. Gerard, J. Duchet and P. Mazabraud, 2006, Morphology and gas barrier properties of polyethylene-based nanocomposites, Journal of Polymer Science, Part B, Polymer Physics 44(2), 431-440 https://doi.org/10.1002/polb.20707
  9. Ji, X.L., J.K. Jing, W. Jiang and B.Z. Jiang, 2002, Tensile modulus of polymer nanocomposites, Polymer Engineering & Science 42(5), 983-993 https://doi.org/10.1002/pen.11007
  10. Liang, G., J. Xu, S. Bao and W. Xu, 2004, Polyethylene/maleic anhydride grafted polyethylene/organic-montmorillonite nanocomposites. I. Preparation, microstructure, and mechanical properties, Journal of Applied Polymer Science 91(6), 3974-3980 https://doi.org/10.1002/app.13612
  11. Morgan, A.B. and J.W. Gilman, 2003, Characterization of polymer-layered silicate(clay) nanocomposites by transmission electron microscopy and X-ray diffraction: A comparative study, Journal of Applied Polymer Science 87(8), 1329-1338 https://doi.org/10.1002/app.11884
  12. Osman, M.A. and J.E.P. Rupp, 2005, Interfacial interactions and properties of polyethylene-layered silicate nanocomposites, Macromolecular rapid communications 26(11), 880-884 https://doi.org/10.1002/marc.200500087
  13. Pasanovic-Zujo, V., R.K. Gupta and S.N. Bhattacharya, 2004, Effect of vinyl acetate content and silicate loading on EVA nanocomposites under shear and extensional flow, Rheologica Acta 43(2), 99-108 https://doi.org/10.1007/s00397-003-0324-9
  14. Sinha Ray, S. and M. Okamoto, 2003, Polymer/layered silicate nanocomposites: a review from preparation to processing, Progress in Polymer Science 28(11), 1539-1641 https://doi.org/10.1016/j.progpolymsci.2003.08.002
  15. Sinha Ray, S., K. Yamada, M. Okamoto, A. Ogami and K. Ueda, 2003, New polylactide/layered silicate nanocomposites. 3. high-performance biodegradable materials, Chem Mater. 15, 1456-1465 https://doi.org/10.1021/cm020953r
  16. Tidjani, A. and C.A. Wilkie, 2001, Photo-oxidation of polymericinorganic nanocomposites: chemical, thermal stability and fire retardancy investigations, Polymer Degradation and Stability 74(1), 33-37 https://doi.org/10.1016/S0141-3910(01)00061-1
  17. Wang, K.H., M.H. Choi, C.M. Koo, Y.S. Choi and I.J. Chung, 2001, Synthesis and characterization of maleated polyethylene/ clay nanocomposites, Polymer 42(24), 9819-9826 https://doi.org/10.1016/S0032-3861(01)00509-2
  18. Wang, K.H., M.H. Choi, C.M. Koo, M. Xu, I.J. Chung, M.C. Jang, S.W. Choi and H.H. Song, 2002, Morphology and physical properties of polyethylene/silicate nanocomposite prepared by melt intercalation, Journal of Polymer Science Part B Polymer Physics 40(14), 1454-1463 https://doi.org/10.1002/polb.10201
  19. Xie, Y., D. Yu, J. Kong, X. Fan and W. Qiao, 2006, Study on morphology, crystallization behaviors of highly filled maleated polyethylene-layered silicate nanocomposites, Journal of Applied Polymer Science 100(5), 4004-4011 https://doi.org/10.1002/app.23206