| What is wpc(wood plastic composite) and how are they made? |
| [2013-6-27] Checking times：3758 |
Wood plastic composite lumber is composed of wood from recovered saw dust (and other cellulose-based fiber fillers such as pulp fibers, peanut hulls, bamboo, straw, digestate, etc.) and virgin or waste plastics including HDPE, PVC, PP, ABS, PS, and PLA. The powder or fibers are mixed to a dough-like consistency and then extruded or moulded to the desired shape. Additives such as colorants, coupling agents, stabilizers, blowing agents, reinforcing agents, foaming agents, lubricants help tailor the end product to the target area of application. The material is formed into both solid and hollow profiles or into injection moulded parts and products.
Wood, resin, regrind, and most of the additives are combined and processed in a pelletizing extruder. The new material pellets are formed in mold and dried. Pre-distribution testing can help determine the optimal combination of chemical agents, design, agitation and other flow aid strategies for the specific material in use. Material description:
35% environmental plastic materials(Grade A Recycled HDPE and new PP)
55% natural fiber (wood powder, bamboo powder, etc)
10% chemical additives. (Anti-UV agent, Anti-oxidation agent, stabilizers, colorants, anti fungus agent, coupling agent, reinforcing agent, lubricants.) |
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