Non-Isothermal Crystallization Kinetics Model of PBT/ MWCNTs Nanocomposites

  • Saad Raheem Sultan, Lecturer Chemical Engineering Department - University of Technology
  • Amer Aziz Abdul-rahman, Lecturer Chemical Engineering Department - University of Technology
  • Ayad Dari Jaafar, Ass. Lect. Chemical Engineering Department - University of Technology
Keywords: crystallization, kinetics, poly (butyleneterephthalate), carbon nanotubes, nanocomposites

Abstract

The non-isothermal crystallization kinetics and crystalline properties of nanocomposites poly butyleneterephthalate, [PBT] /multiwalled-carbon nanotubes (MWCNTs) were tested by differential scanning calorimetry (DSC). PBT/(MWCNTs) nanocomposite was prepared by ultrasonicated of MWCNTs (0.5, 1, 2, 4 wt %) in dichloromethane (DCM) and after that the powdered PBT polymer was added to the MWCNTs solution. The non-isothermal crystallization results show that increasing the MWCNTs contents, decreased the melting temperature (Tm) of PBT/(MWCNTs) nanocomposite as compared with pure PBT, while resulting in improving the degree of crystallinity. These results indicated that a little amount of MWCNTs can be evident strong nucleating agent in PBT nanocomposites. Avrami kinetics model results given a good agreement with the frequent investigation. The Kissinger method shows the MWCNTs had a well nucleation effect on the crystallization of PBT, and the enhancement activation energy (Ea) with increased the MWCNTs in PBT/ (MWCNTs) nanocomposite.

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Published
2017-02-28
How to Cite
Sultan, S., Abdul-rahman, A. and Jaafar, A. (2017) “Non-Isothermal Crystallization Kinetics Model of PBT/ MWCNTs Nanocomposites”, Journal of Engineering, 23(3), pp. 35-45. Available at: http://joe.uobaghdad.edu.iq/index.php/main/article/view/60 (Accessed: 22September2020).