How does freeze-thaw cycling affect the mechanical properties of resin-bonded WPC flower boxes?
Freeze-thaw cycling significantly impacts the mechanical properties of resin-bonded wood-plastic composite (WPC) flower boxes, commonly used in outdoor applications. Repeated freezing and thawing can cause microcracks in the resin matrix, weakening the bond between wood fibers and plastic. This degradation reduces tensile strength, flexural modulus, and impact resistance over time. Moisture absorption during thawing exacerbates the damage, leading to swelling and eventual structural failure. To enhance durability, manufacturers often incorporate stabilizers or hydrophobic additives. Understanding these effects helps in designing WPC flower boxes that withstand harsh weather conditions, ensuring longer service life and maintained aesthetic appeal.
