Contemporary Materials III−1 (2012)

Contemporary Materials, III−1 (2012)          Page 86 of 92

UDK 678.7.091.3


I. Ristić1,*, S. Cakić2, O. Ilić2, J. Budinski-Simendić1, M. Marinović-Cincović3

1 University of Novi Sad, Faculty of Technology, Bul. Cara Lazara 1,
2 University of Niš, Faculty of Technology, Leskovac, Bul. Oslobodjenja 124,
3 University of Belgrade, Institute of nuclear science Vinča 


This paper presents an outline of developed methods for chemical recycling of postconsumer poly(ethylene terephthalate) (PET) waste bottles. Oligoesters (obtained by chemical recycled PET) with 2,2-bis (hydroxyl methyl) propionic acid, as hydrophobic monomer, and isophorone diisocyanate as cross-linker, in the presence of di-n-dibutyl tin(IV)dilaurate catalyst, were used for polyurethane dispersions. Molecular masses of obtained products were analyzed by gel permeation chromatography. Infra-red spectroscopy was used for molecular structures analysis. Thermal properties were evaluated by using differential scanning calorimetry and thermogravimetric analysis.

Keywords: recycling, poly(ethylene terephthalate), polyurethane dispersion.

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