What are the effects of long-term static loads on the creep resistance of WPC outdoor tree boxes?

Wood-Plastic Composite (WPC) outdoor tree boxes are widely used for their durability and low maintenance. However, long-term static loads, such as soil pressure and environmental stress, can significantly affect their creep resistance—the material's ability to resist deformation over time. Studies show that prolonged exposure to static loads may lead to gradual deformation, reducing structural integrity and lifespan. Factors like material composition, load intensity, and environmental conditions (e.g., temperature, moisture) further influence creep behavior. Optimizing WPC formulations and reinforcing designs can enhance creep resistance, ensuring long-term performance in outdoor applications. Understanding these effects helps in selecting and maintaining WPC tree boxes for sustainable urban landscaping.