What additives improve the weatherability of WPC in outdoor sofa armrests?
To enhance the weatherability of Wood-Plastic Composite (WPC) in outdoor sofa armrests, several additives are commonly used. UV stabilizers, such as hindered amine light stabilizers (HALS), protect against sun damage by reducing degradation from ultraviolet rays. Pigments and colorants with UV resistance help maintain the aesthetic appeal by preventing fading. Antioxidants are added to combat oxidative stress caused by heat and moisture. Water repellents, like silicone-based additives, reduce moisture absorption, preventing swelling and mold growth. Lastly, coupling agents improve the bond between wood fibers and plastic, enhancing durability. These additives collectively ensure WPC remains durable and visually appealing in outdoor settings.
