Glycolyzed products from PET waste and their application in synthesis of polyurethane dispersions
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Cakić, Suzana M.Ristić, Ivan S.
Marinović-Cincović, Milena
Nikolić, Nada Č.
Ilic, Olivera Z.
Stojiljković, Dragan T.
Budinski-Simendić, Jaroslava K.
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Soft drinks poly(ethylene terephthalate) (PET) bottles were depolymerized by glycolysis with different molar ratio of glycol, such as propylene glycol (PG), triethylene glycol (TEG) and poly(ethylene glycol) (PEG 400), in the presence of a zinc acetate catalyst. These glycolyzed products were characterized by hydroxyl value (HV) determinations. The obtained glycolyzed products were reacted with isophorone diisocyanate (IPDI), dimethylol propionic acid (DMPA), as potential ionic center for water dispersibility, and mixed with ethylene diamine (EDA) as extender chain to prepare polyurethane dispersions. The PET glycolyzed products and polyurethane formation were characterized using Fourier transform infrared spectroscopy (FTIR). The molecular masses distribution of oligoester polyol and polyurethane dispersions were determined by using gel permeation chromatography (G PC). The effect of different PET/glycol molar ratio, on the physico-mechanical properties, such as hardness, adhesion tes...t and gloss of polyurethane films were investigated. Thermal properties were investigated by thermogravimetric analysis (TG) and differential scanning calorimetry (DSC). It was observed that initial degradation temperatures were at about 200 degrees C, with two-or three degradation steps. The influence of different molar ratio PET/glycol on DTG curves showed stages that were not noticeable in the appropriate weight loss curves. Polyurethane dispersions which lower molar ratio of PET/glycol in glycolyzed products showed lower thermal stability due to the presence of a greater amount of aromaticity in polyester backbone led to materials with higher film hardness. The values for the film adherence and gloss were confirmed their excellent properties for potential application for coatings in civil engineering, metal or polymer industry. (C) 2011 Elsevier B.V. All rights reserved.
Keywords:
PET waste / Glycolysis / Polyurethane dispersions / Fourier transform infrared spectroscopy (FTIR) / Thermal stability / CoatingsSource:
Progress in Organic Coatings, 2012, 74, 1, 115-124Funding / projects:
- Multiscale structuring of polymer nanocomposites and functional materials based on different precursors (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45022)
- Possibilities of use of geothermal water potential in Jablanica and Pcinja districts (RS-MESTD-Technological Development (TD or TR)-33034)
DOI: 10.1016/j.porgcoat.2011.11.024
ISSN: 0300-9440
WoS: 000302585300015
Scopus: 2-s2.0-84857992933
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VinčaTY - JOUR AU - Cakić, Suzana M. AU - Ristić, Ivan S. AU - Marinović-Cincović, Milena AU - Nikolić, Nada Č. AU - Ilic, Olivera Z. AU - Stojiljković, Dragan T. AU - Budinski-Simendić, Jaroslava K. PY - 2012 UR - https://vinar.vin.bg.ac.rs/handle/123456789/4786 AB - Soft drinks poly(ethylene terephthalate) (PET) bottles were depolymerized by glycolysis with different molar ratio of glycol, such as propylene glycol (PG), triethylene glycol (TEG) and poly(ethylene glycol) (PEG 400), in the presence of a zinc acetate catalyst. These glycolyzed products were characterized by hydroxyl value (HV) determinations. The obtained glycolyzed products were reacted with isophorone diisocyanate (IPDI), dimethylol propionic acid (DMPA), as potential ionic center for water dispersibility, and mixed with ethylene diamine (EDA) as extender chain to prepare polyurethane dispersions. The PET glycolyzed products and polyurethane formation were characterized using Fourier transform infrared spectroscopy (FTIR). The molecular masses distribution of oligoester polyol and polyurethane dispersions were determined by using gel permeation chromatography (G PC). The effect of different PET/glycol molar ratio, on the physico-mechanical properties, such as hardness, adhesion test and gloss of polyurethane films were investigated. Thermal properties were investigated by thermogravimetric analysis (TG) and differential scanning calorimetry (DSC). It was observed that initial degradation temperatures were at about 200 degrees C, with two-or three degradation steps. The influence of different molar ratio PET/glycol on DTG curves showed stages that were not noticeable in the appropriate weight loss curves. Polyurethane dispersions which lower molar ratio of PET/glycol in glycolyzed products showed lower thermal stability due to the presence of a greater amount of aromaticity in polyester backbone led to materials with higher film hardness. The values for the film adherence and gloss were confirmed their excellent properties for potential application for coatings in civil engineering, metal or polymer industry. (C) 2011 Elsevier B.V. All rights reserved. T2 - Progress in Organic Coatings T1 - Glycolyzed products from PET waste and their application in synthesis of polyurethane dispersions VL - 74 IS - 1 SP - 115 EP - 124 DO - 10.1016/j.porgcoat.2011.11.024 ER -
@article{ author = "Cakić, Suzana M. and Ristić, Ivan S. and Marinović-Cincović, Milena and Nikolić, Nada Č. and Ilic, Olivera Z. and Stojiljković, Dragan T. and Budinski-Simendić, Jaroslava K.", year = "2012", abstract = "Soft drinks poly(ethylene terephthalate) (PET) bottles were depolymerized by glycolysis with different molar ratio of glycol, such as propylene glycol (PG), triethylene glycol (TEG) and poly(ethylene glycol) (PEG 400), in the presence of a zinc acetate catalyst. These glycolyzed products were characterized by hydroxyl value (HV) determinations. The obtained glycolyzed products were reacted with isophorone diisocyanate (IPDI), dimethylol propionic acid (DMPA), as potential ionic center for water dispersibility, and mixed with ethylene diamine (EDA) as extender chain to prepare polyurethane dispersions. The PET glycolyzed products and polyurethane formation were characterized using Fourier transform infrared spectroscopy (FTIR). The molecular masses distribution of oligoester polyol and polyurethane dispersions were determined by using gel permeation chromatography (G PC). The effect of different PET/glycol molar ratio, on the physico-mechanical properties, such as hardness, adhesion test and gloss of polyurethane films were investigated. Thermal properties were investigated by thermogravimetric analysis (TG) and differential scanning calorimetry (DSC). It was observed that initial degradation temperatures were at about 200 degrees C, with two-or three degradation steps. The influence of different molar ratio PET/glycol on DTG curves showed stages that were not noticeable in the appropriate weight loss curves. Polyurethane dispersions which lower molar ratio of PET/glycol in glycolyzed products showed lower thermal stability due to the presence of a greater amount of aromaticity in polyester backbone led to materials with higher film hardness. The values for the film adherence and gloss were confirmed their excellent properties for potential application for coatings in civil engineering, metal or polymer industry. (C) 2011 Elsevier B.V. All rights reserved.", journal = "Progress in Organic Coatings", title = "Glycolyzed products from PET waste and their application in synthesis of polyurethane dispersions", volume = "74", number = "1", pages = "115-124", doi = "10.1016/j.porgcoat.2011.11.024" }
Cakić, S. M., Ristić, I. S., Marinović-Cincović, M., Nikolić, N. Č., Ilic, O. Z., Stojiljković, D. T.,& Budinski-Simendić, J. K.. (2012). Glycolyzed products from PET waste and their application in synthesis of polyurethane dispersions. in Progress in Organic Coatings, 74(1), 115-124. https://doi.org/10.1016/j.porgcoat.2011.11.024
Cakić SM, Ristić IS, Marinović-Cincović M, Nikolić NČ, Ilic OZ, Stojiljković DT, Budinski-Simendić JK. Glycolyzed products from PET waste and their application in synthesis of polyurethane dispersions. in Progress in Organic Coatings. 2012;74(1):115-124. doi:10.1016/j.porgcoat.2011.11.024 .
Cakić, Suzana M., Ristić, Ivan S., Marinović-Cincović, Milena, Nikolić, Nada Č., Ilic, Olivera Z., Stojiljković, Dragan T., Budinski-Simendić, Jaroslava K., "Glycolyzed products from PET waste and their application in synthesis of polyurethane dispersions" in Progress in Organic Coatings, 74, no. 1 (2012):115-124, https://doi.org/10.1016/j.porgcoat.2011.11.024 . .