the effect of anti-yellowing agent dosage on the physical properties of polyurethane thermoplastic elastomers (tpe) introduction 🧪 polyurethane thermoplastic elastomers (pu-tpes) are a class of versatile materials known for their elasticity, durability, and wide range of applications—from automotive parts to medical devices and consumer goods. however, one persistent challenge in the use of pu-tpes is...