Polyethylene/Layered Aluminosilicate Nanocomposites: Investigation of Thermal Stability under Static and Dynamic Conditions

  • V. V. Dolgov Polymer Chemistry and Physics Research Center at the National University of Uzbekistan, 100128, Tashkent, A. Kadyri st., 7b
  • Sh. G. Sadykov Polymer Chemistry and Physics Research Center at the National University of Uzbekistan, 100128, Tashkent, A. Kadyri st., 7b
  • M. M. Usmanova Polymer Chemistry and Physics Research Center at the National University of Uzbekistan, 100128, Tashkent, A. Kadyri st., 7b
  • N. R. Ashurov Polymer Chemistry and Physics Research Center at the National University of Uzbekistan, 100128, Tashkent, A. Kadyri st., 7b
  • S. Sh. Rashidova Polymer Chemistry and Physics Research Center at the National University of Uzbekistan, 100128, Tashkent, A. Kadyri st., 7b
Keywords: polyethylene, layered aluminosilicate, montmorillonite, nanocomposites, activation energy, thermal stability, melt compounding

Abstract

Based on linear low-density polyethylene and maleated polyethylene a polymer nanocomposites containing modified montmorillonite have been obtained, structure is investigated by XRD analysis. In turn, by the methods of thermal analysis in static and dynamic modes, the resistance of polymer nanocomposites to oxidative destruction it was investigated. In parallel with this, a comparative analysis of the thermal stability of polymer nanocomposites and polymer compositions containing commercially available organic antioxidants for stabilization of materials based on polyolefins. By results of the analysis carried out in a dynamic mode, for a series of polymer composites the activation energy of thermooxidative destruction was calculated. It is shown that the nanocomposites based on polyethylene, containing the modified montmorillonite not only not concede to polymer compositions with antioxidants in to thermal stability, but also exceed their. Accelerated tests, carried out at relatively high temperatures allowed evaluate the durability of polymer nanocomposites to thermooxidative destruction. Received results allow approve about a long-term thermal stability of these materials in the processing, and in the exploitation conditions.

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Published
2016-10-27
How to Cite
[1]
V. Dolgov, S. Sadykov, M. Usmanova, N. Ashurov, and S. Rashidova, “Polyethylene/Layered Aluminosilicate Nanocomposites: Investigation of Thermal Stability under Static and Dynamic Conditions”, Eurasian Chem. Tech. J., vol. 18, no. 4, pp. 305-309, Oct. 2016.
Section
Articles