Specification :

Wood plastic composite profile, commonly known as WPC profile, is a novel type of product developed in coincidence with the idea of environment protecting and waste recycling. Plastic materials such as PVC, PE or PP is normally used as the main component, while the source of wood part can be various options, including wood dust powder, rice shell, straw, as well as other agricultural waste.

Presently WPC profile extrusion technology can be divided into one-stage extrusion and two-stage extrusion. The previous one is commonly adopted for production of those building materials, which do not have any special requirements on surface finished quality, such as flooring plate, angle profile, etc. In this process powder plastic material is directly mixed with dried wood powder in certain ratio, together with other additives, and loaded into conical twin extruder for extrusion. In two-stage extrusion, plastic and wood components are first put into a single screw or parallel twin-screw extruder for granulation into pellets, which can be regarded as an initial plasticizing and blending process, and then into conical twin-screw extruder for moulding extrusion. Application of two-stage extruded WPC profile can be outdoor decoration, such as garden fence, beams, railing, chairs, etc.