Wood plastic composites (WPC), also known as wood plastic composites, are a new type of composite material that has flourished both domestically and internationally in recent years. They refer to the use of polyethylene, polypropylene, polyvinyl chloride, and other materials to replace traditional resin adhesives, mixed with over 35% -70% of waste plant fibers such as wood powder, rice husks, and straw to create new wood materials. These materials are then processed through plastic processing techniques such as extrusion, molding, and injection molding to produce boards or profiles. Mainly used in industries such as building materials, furniture, logistics packaging, etc. The board formed by hot extrusion of plastic and wood powder mixed in a certain proportion is called extruded wood plastic composite board.