Analyzing Different Anti-Yellowing Agents’ Impact on Polyurethane TPE UV Resistance Introduction: The Sunshine Villain and the Heroic Additives 🌞🛡️ Imagine a sunny day. Everything seems perfect—birds are chirping, flowers blooming, and your favorite pair of polyurethane-based thermoplastic elastomer (TPE) shoes or phone case is basking in the glory of the sun. But beneath that golden...