What are the effects of resin plasticizer migration on the surface tackiness of WPC tree boxes?
Resin plasticizer migration in Wood-Plastic Composite (WPC) tree boxes can significantly affect their surface tackiness, leading to reduced durability and aesthetic appeal. Plasticizers, added to enhance flexibility, may gradually migrate to the surface over time, especially under exposure to heat and moisture. This migration causes a sticky or greasy film, attracting dirt and compromising the material's structural integrity. Understanding this phenomenon helps in selecting better additives or coatings to mitigate tackiness and prolong the lifespan of WPC tree boxes in outdoor environments. Proper formulation and material selection are key to maintaining performance and visual quality.