What are the effects of ozone exposure on the structural integrity of resin-based WPC tree boxes?

Ozone exposure can significantly affect the structural integrity of resin-based Wood-Plastic Composite (WPC) tree boxes. Over time, ozone reacts with the polymer matrix in WPCs, leading to oxidative degradation. This process weakens the material, causing brittleness, surface cracks, and reduced load-bearing capacity. Additionally, prolonged exposure accelerates color fading and diminishes UV resistance, further compromising longevity. Understanding these effects is crucial for urban planners and manufacturers to ensure durable, sustainable outdoor solutions. Mitigation strategies, such as UV stabilizers or protective coatings, can help extend the lifespan of WPC tree boxes in ozone-rich environments.