Researchers at Washington State University have developed a flexible, bio-based polyurethane foam using lignin extracted from pine. This eco-friendly alternative replaces 20% of petroleum-based chemicals and matches the strength and flexibility of conventional foam. The innovation has the potential to transform industries that rely on polyurethane for products such as cushions, insulation, and adhesives, reducing dependence on fossil fuels. The team used a mild, environmentally friendly solvent to separate high-quality lignin from pine, which is then used to produce the foam. The resulting foam is stable and performs well mechanically, similar to conventional foams. The researchers plan to work with industrial partners to optimize and scale up production for a wide range of applications. The lignin used in this process is a renewable resource, and the team believes it could help reduce the use of petroleum-based plastics, which are a significant waste problem and difficult to recycle.
Environmentally-Friendly PF-R Foam Made from Renewable Pine Sources
