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Non-Isothermal Crystallization Kinetics Model of PBT/ MWCNTs Nanocomposites | ||
| Journal of Engineering | ||
| Article 1, Volume 23, Issue 3, 2017, Pages 35-45 | ||
| Authors | ||
| Saad Raheem Sultan; Amer Aziz Abdul-rahman; Ayad Dari Jaafar | ||
| 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. | ||
| Keywords | ||
| crystallization; Kinetics; poly; carbon nanotubes; Nanocomposites | ||
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