WPC (Wood Plastic Composite) is a composite material that contain a wood component in the form of particles and a polymer matrix. A product class that has developed over the last fifty years, resulting in an increase in applications, thanks to the extrusion and compounding process.
It can be described in a few words as: Attractive, durable, versatile, and as elegant as wood but without its flaws.
The matrix can be a thermoplastic polymer such as PVC, PE or PP that can be processed at relatively low temperatures, avoiding thermal degradation of the wood.
The primary manufacturing processes for wood plastic composites are extrusion, injection molding, and compression molding or thermoforming (pressing). The primary purpose of the extruder, like any compounding process, is to melt the plastic polymer and mix the polymer, wood, and additives in the compounding process (linkare pagina nuova sul compound).