Alkyd resins on the base of waste poly(ethylene terephthalate) and glycerol phase from biodiesel production
| dc.contributor.author | Todorov, Nikola | |
| dc.date.accessioned | 2026-02-06T06:13:26Z | |
| dc.date.available | 2026-02-06T06:13:26Z | |
| dc.date.issued | 2026-01-10 | |
| dc.description.abstract | One of the most significant environmental challenges in the modern world is the proper management of wastes and by-products. In the present work, we report the results from our research on the possibility of obtaining alkyd resins based on two waste products - poly(ethylene terephthalate) (PET) beverage bottles (among the highest-volume wastes in landfills) and the organic substances of the glycerol phase, obtained as a by-product in the canola oil biodiesel production. After treatment with potassium hydroxide and subsequent neutralization, from the organic substances in the glycerol phase, canola oil fatty acids and crude glycerol (80.6% purity) have been obtained. Two PET glycolysis were carried out by the crude glycerol at two different glycerol/PET ratios. A total of three medium oil alkyds were obtained - two based on PET glycosates, canola oil fatty acids and phthalic anhydride, and one reference alkyd based on canola oil, glycerol, phthalic anhydride, and ethylene glycol. The syntheses were carried out using microwave irradiation. Films from all alkyd resins were prepared, and their physical properties, thermal stability, and chemical resistance were investigated. Results showed that the drying time, hardness, abrasion resistance, thermal stability, and chemical resistance of the PET modified alkyd resins are better than those properties of the reference alkyd resin. | |
| dc.identifier.issn | 1313-9940 | |
| dc.identifier.uri | https://doi.uni-plovdiv.bg/handle/store/978 | |
| dc.language.iso | en | |
| dc.publisher | Plovdiv University Press "Paisii Hilendarski" | |
| dc.subject | poly(ethylene terephthalate) | |
| dc.subject | glycolysis | |
| dc.subject | canola oil | |
| dc.subject | microwave-assisted depolymerization | |
| dc.title | Alkyd resins on the base of waste poly(ethylene terephthalate) and glycerol phase from biodiesel production | |
| dc.type | Article |