title   
  

Comparison of melt extrusion and thermokinetic mixing methods in poly(ethylene terephthalate)/montmorillonite nanocomposites

Özen, İlhan and İnceoğlu, Funda and Acatay, Kazım and Menceloğlu, Yusuf Z. (2012) Comparison of melt extrusion and thermokinetic mixing methods in poly(ethylene terephthalate)/montmorillonite nanocomposites. Polymer Engineering and Science, 52 (7). pp. 1537-1547. ISSN 0032-3888

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Official URL: http://dx.doi.org/10.1002/pen.23102

Abstract

The scope of this study consists in studying the effects of processing type on thermal stability of poly(ethylene terephthalate) (PET) and its nanocomposites prepared with organically modified clays. To achieve this goal, an intercalating agent was synthesized and montmorillonite type of clay modified with this intercalating agent was mixed with the PET by using melt extrusion and high-shear thermokinetic mixing method. According to the results, manganese in the raw claythough chemically boundwas found to be responsible for the decreased intrinsic viscosity (IV) values, i.e. decreased molecular weight in PET/organoclay nanocomposites. Besides, it was revealed that working on the thermokinetic mixer provided substantial contributions such as shorter processing times in comparison to the melt extrusion method, elimination of drying step before melt processing, which has been accepted as an inevitable process for PET so far, less thermal degradation because of short processing times, and more homogeneous and better dispersion of the clay particles in PET matrix phase.

Item Type:Article
Subjects:T Technology > TP Chemical technology > TP1080 Polymers and polymer manufacture
ID Code:19188
Deposited By:Yusuf Z. Menceloğlu
Deposited On:18 Jul 2012 16:41
Last Modified:05 Dec 2012 11:59

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