What co-extrusion methods create multilayer PVC outdoor tree boxes?
Co-extrusion is a key manufacturing technique for producing multilayer PVC outdoor tree boxes, offering durability and weather resistance. The primary methods include:
1. Multi-Layer Co-Extrusion: Combines PVC layers with additives (e.g., UV stabilizers) for enhanced strength and longevity.
2. Sequential Co-Extrusion: Bonds distinct layers (e.g., rigid outer shell, foam core) in a single pass for insulation and structural integrity.
3. Modular Co-Extrusion: Allows customization of layer thicknesses to meet specific load-bearing or aesthetic requirements.
These methods ensure tree boxes withstand harsh outdoor conditions while supporting urban greenery.
