Improving Abrasion Resistance in Polyurethane Elastomers with Low Free TDI Trimer Hardeners Introduction Polyurethane (PU) elastomers are a versatile class of polymers prized for their exceptional mechanical properties, including high tensile strength, elongation at break, and tear resistance. However, their abrasion resistance, the ability to withstand wear and tear caused by frictional forces, is often...