Prediction of thermal stability, crystallinity and thermomechanical properties of poly(ethylene oxide)/clay nanocomposites with artificial neural networks

BURGAZ E., Yazıcı M., Kapusuz M., Alışır S., ÖZCAN H.

THERMOCHIMICA ACTA, cilt.575, ss.159-166, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 575
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1016/j.tca.2013.10.032
  • Dergi Adı: THERMOCHIMICA ACTA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.159-166
  • Anahtar Kelimeler: Thermomechanical properties, Thermal stability, Crystallinity, Nanocomposites, Poly(ethylene oxide) (PEO), Nanoclay, LAYERED-SILICATE NANOCOMPOSITES, POLYMER ELECTROLYTE, MECHANICAL-PROPERTIES, CLAY NANOCOMPOSITES, WEAR PROPERTIES, FUMED SILICA, CARBON-FIBER, COMPOSITES, MORPHOLOGY, NANOPARTICLES
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

The artificial neural network (ANN) technique with a feed-forward back propagation algorithm was used to examine the effect of clay composition and temperature on thermal stability, crystallinity and thermomechanical properties of poly(ethylene oxide)/clay nanocomposites. Based on dynamic mechanical analysis (DMA), differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA) experiments, values of decomposition temperature, char yield, enthalpy of melting, storage modulus (E') and tan delta were successfully calculated by well-trained ANNs. The simulated data is in very good agreement with the experimental data. ANN results confirm that thermal stability of PEO nanocomposites increases with the decrease of enthalpy of melting and relative crystallinity, and there is a directly proportional relationship between the modulus (stiffness) and thermal stability. The ANN technique is confirmed to be a useful mathematical tool in the thermal analysis of polymer/clay nanocomposites. (C) 2013 Elsevier B.V. All rights reserved.