Sustainable pavement binder application of glycolyzed waste polyethylene terephthalate to synthesize high-performance polyurethane modified bitumen
Beijing University of Technology · Xinjiang University
Abstract
The dual challenges of accumulating polyethylene terephthalate (PET) plastic waste and the heavy reliance on petroleum-based raw materials necessitated sustainable, high-performance bitumen binder solutions. This study proposed a dual-purpose solution by chemically upcycling post-consumer PET through glycolysis to synthesize PET polyols, which partially replaced petroleum-derived Polytetramethylene ether glycol (PTMEG-2000) in the synthesis of PET-based polyurethane-modified bitumen (P-PUMB). A comprehensive evaluation of the PET polyol substitution ratios (25–75 %), curing conditions, and the PET-based polyurethane (P-PU) dosages (30–70 %) was carried out through conventional, chemical, morphological, and…
Citation impact
- FWCI
- 62.01
- Percentile
- 100%
- References
- 41
Authors
6Topics & keywords
- Polyol
- Polyethylene terephthalate
- Polyurethane
- Curing (chemistry)
- Polyethylene glycol
- Asphalt
- Rheology