What are the shear strength properties of WPC in outdoor bin construction?

Wood-Plastic Composite (WPC) is increasingly used in outdoor bin construction due to its durability and resistance to environmental factors. The shear strength of WPC is a critical mechanical property that determines its ability to withstand lateral forces, such as those from wind, impacts, or heavy loads in outdoor settings. Typically, WPC exhibits shear strength values ranging from 10 to 20 MPa, depending on the composition—specifically, the ratio of wood flour to plastic polymer (e.g., polyethylene or polypropylene). This strength is influenced by factors like fiber orientation, moisture absorption, and temperature fluctuations. In outdoor bins, WPC's shear resistance helps prevent deformation and failure, ensuring structural integrity over time. Additionally, WPC's low moisture absorption (often below 2%) reduces the risk of shear weakening from water exposure, making it a reliable choice for long-term outdoor applications.