How does the use of lignin as a natural binder affect the properties of WPC outdoor trash cans?

The use of lignin as a natural binder significantly improves the properties of Wood Plastic Composite (WPC) outdoor trash cans. As a renewable and abundant polymer derived from plants, lignin acts as a effective binding agent within the composite matrix. This enhances the overall mechanical strength and dimensional stability of the trash cans, making them more resistant to impacts and warping in varying outdoor conditions. Furthermore, lignin improves the material's resistance to moisture and UV degradation, extending the product's lifespan. From an environmental perspective, incorporating lignin reduces reliance on synthetic binders, lowering the carbon footprint and enhancing the biodegradability of the end-of-life product. This makes lignin-bonded WPC trash cans a superior, sustainable choice for public spaces.