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Structural and thermal properties of nanocomposites based on polyolefins and montmorillonite modified with ethyl 2-aminobenzoate

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EN
Abstrakty
EN
Our efforts were focused on improving thermal stability of polyethylene (PE) and polypropylene (PP) through incorporation of new organically modified montmorillonite.The reactive organofilic montmorillonite (MMT-EA) was prepared by exchanging the interlayer inorganic cations in montmorillonite by a large excess of ethyl 2-aminobenzoate (EA). Organic modification can affect not only microstructures, but also the properties of the polymer - montmorillonite nanocomposites. In the next step, novel polyolefins/ organoclay nanocomposites were prepared by melt intercalation process. In order to obtain this new family of materials and enhance their properties very low filler level, from 1.5 to 5 wt.% was used.The dispersion of the montmorillonite layers in the polymers was characterized by using X-ray diffraction (XRD). The thermal properties and structure changes were studied by different scanning calorimetry (DSC) and thermogravimetric analysis (TGA). Further studies indicated that the exfoliated clay modified with EA improved thermal stability of the PE and PP/MMT-EA nanocomposites.
Słowa kluczowe
Twórcy
  • Nicolaus Copernicus University in Toruń, Faculty of Chemistry, Chair of Physical Chemistry and Physicochemistry of Polymers, Gagarin 7 Str., 87-100 Torun, Poland
  • Nicolaus Copernicus University in Toruń, Faculty of Chemistry, Chair of Physical Chemistry and Physicochemistry of Polymers, Gagarin 7 Str., 87-100 Torun, Poland
Bibliografia
  • 1.Alexandre M. and Dubois P. Polymer-layered silicate nanocomposites: preparation, properties and uses of a new class of materials. Materials Science and Engineering, 28(1-2), 2000, 1–63.
  • 2.Chen G., Liu S., Chen S. and Qi Z. FTIR spectra, thermal properties, and dispersibility of a polystyrene/montmorillonite nanocomposite. Macromolecular Chemistry and Physics, 202(7), 2001, 1189–1193.
  • 3.Filho F.G.R., Melo T.J.A., Rabello M.S. and Silva S.M.L. Thermal stability of nanocomposites based on polypropylene and bentonite. Polymer Degradation and Stability, 89(3), 2005, 383–392.
  • 4.Gilman J.W., Award W.H., Davis R.D., Shields J., Harris Jr R.H., Davis Ch., Morgan A.B., Sutto T.E., Callahan J., Trulove P.C. and DeLong H.C. Polymer/layered silicate nanocomposites from thermally stable trialkylimidazolium- treated montmorillonite. Chemistry of Materials, 14(9), 2002, 3776–3785.
  • 5.Gopakumar T.G., Lee J.A., Kontopoulou M. and Parent J.S. Influence of clay exfoliation on the physical properties of montmoryllonite /polyethylene composites. Polymer, 43(20), 2002, 5483–5491.
  • 6.Huang J.Ch., Zhu Z.K., Yin J., Qian X.F. and Sun Y.Y. Poly(etherimide)/montmorillonite nanocomposites prepared by melt intercalation: morphology, solvent resistance properties and thermal properties. Polymer, 42(3), 2001, 873–877.
  • 7.Lee S.R., Park H.M., Lim H., Kang T., Li X., Cho W.J. and Ha Ch.S. Microstructure, tensile properties, and biodegradability of aliphatic polyester/clay nanocomposites. Polymer, 43(8), 2002, 2495–2500.
  • 8.Leszczyńska A., Njuguna J., Pielichowski K. and Banerjee J.R. Polymer/montmorillonite nanocomposites with improved thermal properties Part I. Factors influencing thermal stability and mechanisms of thermal stability improvement. Thermochimica Acta, 453(2), 2007, 75–96.
  • 9.Nour M.A. Polymer/clay nanocomposites. Polimery, 47(5), 2002, 326–331.
  • 10.Suberlyak O., Krasinskyi V., Moravskyi V., Gerlach H. and Jachowicz T.: Influence of aluminosilicate filler on the physicomechanical properties of polypropylene-polycaproamide composites. Materials Science 50(2), 2014, 296-302.
  • 11.Xie W., Gao Z., Pan W., Hunter D., Singh A. and Vaia R. Thermal degradation chemistry of alkyl quaternary ammonium montmorillonite. Chemistry of Materials, 13(9), 2001, 2979–2990.
  • 12.Zhao Ch., Qin H., Gong F., Feng M., Zhang S. and Yang M. Mechanical, thermal and flammability properties of polyethylene/clay nanocomposites. Polymer Degradation and Stability, 87(1), 2005, 183–189.
Uwagi
Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-4d887e4c-a20d-4db7-9541-88e5957c9008
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