Published Paper Details:

In this study, polyethylene glycol (PEG) in various ratios was used to solvolyze renewable biomass, yielding polyol. The presence of functional groups including -CO, C=O, esters, and ethers was revealed when the liquefied wood was analyzed using Fourier Transform Infrared Spectroscopy (FTIR). The resultant polyol was employed to make resin and then polymerized with different proportions of methylene diphenyl diisocyanate (MDI) to create adhesives, wood composites, and polyurethane foam. The FTIR analysis confirmed the successful incorporation of functional groups essential for polyurethane formation. An analysis of the mechanical characteristics of the generated polyurethane foams showed that the NCO/OH ratio has a major impact on the foam's mechanical strength and thermal stability. Higher NCO/OH ratios led to higher glass transition temperature and degradation temperature, which indicated increased rigidity in the polyurethane films. This study advances the evolution of bio-based polyurethane materials made from renewable resources, providing a sustainable substitute for petroleum-based products.