What are the notch sensitivity properties of WPC in outdoor bins?

Wood-Plastic Composites (WPC) are widely used in outdoor bins due to their durability and resistance to environmental factors. However, notch sensitivity—a material's tendency to crack at stress concentrations like notches or cuts—is a critical property affecting their performance. WPC generally exhibits low to moderate notch sensitivity, meaning it can withstand some stress without significant crack propagation, but this varies with composition and manufacturing. Factors such as fiber content, plastic matrix type, and additives influence notch toughness. In outdoor bins, where impacts and weather exposure occur, understanding and mitigating notch sensitivity through design improvements and material selection ensures longer service life and reliability.