Glycolysis of poly(ethylene terephthalate) (PET) waste using different molar ratio of poly(ethylene glycol) (PEG400), was used to produce saturated hydroxyl-functional polyester polyols with castor oil (CO) by transesterification process. The waterborne polyurethane (WBPU) adhesives were synthesized from these saturated polyester polyols, isophorone diisocyanate (IPDI), dimethylolpropionic acid (DMPA), and hexamethoxymethyl melamine (HMMM) as cross-linking agent by a conventional prepolymer process. The glycolyzed polyols and polyester polyos formations were characterized using Fourier transform infrared spectroscopy (FTIR) and the molecular weights were determined using gel permeation chromatography (GPC). The cross-linking reaction between WBPU and HMMM was verified using FfIR and H-1 NMR analysis. Thermal properties were investigated by thermogravimetric analysis (TG). Thermal stability of cross-linked WBPU significantly increased with decreasing castor oil content in the process of... transesterification to obtain polyester polyol as a soft segment. The T-15% and T-50% (the temperature where 15 and 50% weight loss occurred) of WBPU increased with the decreasing of castor oil content in the obtained polyester polyols, caused by the steric hindrance of polyester polyol with higher castor oil content, in the process of cross-linking reactions with HMMM. The physico-mechanical properties of WBPU, such as hardness, adhesion test, and gloss of the dried films were also determined considering the effect of participation of HMMM in cross-linking reactions with polyurethane, on coating properties. (C) 2014 Elsevier B.V. All rights reserved.
TY - JOUR
AU - Cakić, Suzana M.
AU - Ristić, Ivan S.
AU - Marinović-Cincović, Milena
AU - Stojiljković, Dragan T.
AU - Csanadi, Janos J.
AU - Cvetinov, Miroslav J.
AU - Stamenkovic, Jakov V.
PY - 2015
UR - https://vinar.vin.bg.ac.rs/handle/123456789/352
AB - Glycolysis of poly(ethylene terephthalate) (PET) waste using different molar ratio of poly(ethylene glycol) (PEG400), was used to produce saturated hydroxyl-functional polyester polyols with castor oil (CO) by transesterification process. The waterborne polyurethane (WBPU) adhesives were synthesized from these saturated polyester polyols, isophorone diisocyanate (IPDI), dimethylolpropionic acid (DMPA), and hexamethoxymethyl melamine (HMMM) as cross-linking agent by a conventional prepolymer process. The glycolyzed polyols and polyester polyos formations were characterized using Fourier transform infrared spectroscopy (FTIR) and the molecular weights were determined using gel permeation chromatography (GPC). The cross-linking reaction between WBPU and HMMM was verified using FfIR and H-1 NMR analysis. Thermal properties were investigated by thermogravimetric analysis (TG). Thermal stability of cross-linked WBPU significantly increased with decreasing castor oil content in the process of transesterification to obtain polyester polyol as a soft segment. The T-15% and T-50% (the temperature where 15 and 50% weight loss occurred) of WBPU increased with the decreasing of castor oil content in the obtained polyester polyols, caused by the steric hindrance of polyester polyol with higher castor oil content, in the process of cross-linking reactions with HMMM. The physico-mechanical properties of WBPU, such as hardness, adhesion test, and gloss of the dried films were also determined considering the effect of participation of HMMM in cross-linking reactions with polyurethane, on coating properties. (C) 2014 Elsevier B.V. All rights reserved.
T2 - Progress in Organic Coatings
T1 - Glycolyzed poly(ethylene terephthalate) waste and castor oil-based polyols for waterborne polyurethane adhesives containing hexamethoxymethyl melamine
VL - 78
SP - 357
EP - 368
DO - 10.1016/j.porgcoat.2014.07.012
ER -
@article{
author = "Cakić, Suzana M. and Ristić, Ivan S. and Marinović-Cincović, Milena and Stojiljković, Dragan T. and Csanadi, Janos J. and Cvetinov, Miroslav J. and Stamenkovic, Jakov V.",
year = "2015",
abstract = "Glycolysis of poly(ethylene terephthalate) (PET) waste using different molar ratio of poly(ethylene glycol) (PEG400), was used to produce saturated hydroxyl-functional polyester polyols with castor oil (CO) by transesterification process. The waterborne polyurethane (WBPU) adhesives were synthesized from these saturated polyester polyols, isophorone diisocyanate (IPDI), dimethylolpropionic acid (DMPA), and hexamethoxymethyl melamine (HMMM) as cross-linking agent by a conventional prepolymer process. The glycolyzed polyols and polyester polyos formations were characterized using Fourier transform infrared spectroscopy (FTIR) and the molecular weights were determined using gel permeation chromatography (GPC). The cross-linking reaction between WBPU and HMMM was verified using FfIR and H-1 NMR analysis. Thermal properties were investigated by thermogravimetric analysis (TG). Thermal stability of cross-linked WBPU significantly increased with decreasing castor oil content in the process of transesterification to obtain polyester polyol as a soft segment. The T-15% and T-50% (the temperature where 15 and 50% weight loss occurred) of WBPU increased with the decreasing of castor oil content in the obtained polyester polyols, caused by the steric hindrance of polyester polyol with higher castor oil content, in the process of cross-linking reactions with HMMM. The physico-mechanical properties of WBPU, such as hardness, adhesion test, and gloss of the dried films were also determined considering the effect of participation of HMMM in cross-linking reactions with polyurethane, on coating properties. (C) 2014 Elsevier B.V. All rights reserved.",
journal = "Progress in Organic Coatings",
title = "Glycolyzed poly(ethylene terephthalate) waste and castor oil-based polyols for waterborne polyurethane adhesives containing hexamethoxymethyl melamine",
volume = "78",
pages = "357-368",
doi = "10.1016/j.porgcoat.2014.07.012"
}
Cakić, S. M., Ristić, I. S., Marinović-Cincović, M., Stojiljković, D. T., Csanadi, J. J., Cvetinov, M. J.,& Stamenkovic, J. V.. (2015). Glycolyzed poly(ethylene terephthalate) waste and castor oil-based polyols for waterborne polyurethane adhesives containing hexamethoxymethyl melamine. in Progress in Organic Coatings, 78, 357-368.
https://doi.org/10.1016/j.porgcoat.2014.07.012
Cakić SM, Ristić IS, Marinović-Cincović M, Stojiljković DT, Csanadi JJ, Cvetinov MJ, Stamenkovic JV. Glycolyzed poly(ethylene terephthalate) waste and castor oil-based polyols for waterborne polyurethane adhesives containing hexamethoxymethyl melamine. in Progress in Organic Coatings. 2015;78:357-368.
doi:10.1016/j.porgcoat.2014.07.012 .
Cakić, Suzana M., Ristić, Ivan S., Marinović-Cincović, Milena, Stojiljković, Dragan T., Csanadi, Janos J., Cvetinov, Miroslav J., Stamenkovic, Jakov V., "Glycolyzed poly(ethylene terephthalate) waste and castor oil-based polyols for waterborne polyurethane adhesives containing hexamethoxymethyl melamine" in Progress in Organic Coatings, 78 (2015):357-368,
https://doi.org/10.1016/j.porgcoat.2014.07.012 . .
