What are the effects of antioxidant additives on the oxidative stability of WPC outdoor trash cans?

Antioxidant additives play a crucial role in improving the oxidative stability of Wood-Plastic Composite (WPC) outdoor trash cans. These cans are constantly exposed to environmental stressors like ultraviolet (UV) radiation, heat, and moisture, which initiate oxidative degradation. This process breaks down the polymer matrix within the WPC, leading to surface chalking, color fading, loss of mechanical strength, and ultimately, a reduced service life. Antioxidant additives function by interrupting the free radical chain reaction responsible for oxidation. They sacrificially react with these radicals, preventing them from attacking the polymer chains. This preservation of the material's integrity results in trash cans that maintain their aesthetic appearance, structural strength, and functionality for a longer period, even under harsh outdoor conditions. The effective use of antioxidants is therefore essential for ensuring the durability and long-term performance of WPC outdoor furniture and waste containers.