What are the effects of high-frequency UV radiation on the molecular structure of WPC polymers?
High-frequency UV radiation significantly impacts the molecular structure of Wood-Plastic Composite (WPC) polymers, leading to both physical and chemical changes. Prolonged exposure to UV rays causes photo-oxidative degradation, breaking down polymer chains and weakening the material's structural integrity. This process results in discoloration, surface cracking, and reduced mechanical strength. Additives like UV stabilizers can mitigate these effects, but untreated WPC polymers are highly susceptible to UV-induced damage. Understanding these effects is crucial for improving WPC durability in outdoor applications.
