What Is The Process Of Wood-plastic Production

Now with the improvement of the social level, people's awareness of environmental protection has gradually become stronger. The decoration of houses is now made of new environmental protection materials. Next, Xiaobian will tell you about the process of wood-plastic production.

Wood-plastic composite is a new kind of green environmental protection composite material. It is made of recycled materials such as polyethylene, polypropylene, acrylonitrile/butadiene/styrene copolymer, polyvinyl chloride and waste wood, sawdust, wood twigs, rice husk, crop straw, peanut husk, etc. processed by high temperature and high pressure with special additives.

Wood-plastic composites began to rise in the United States and Canada in the 1990s. Because of its advantages in resource utilization and environmental protection, wood-plastic composites developed rapidly in the world. In 2002, the consumption of wood-plastic composites in North America and Europe reached 680,000 tons. According to the research forecast of Principia Partners Consulting Company in the United States, the world wood-plastic composite market will exceed $1.4 billion by 2007, and will maintain a good growth momentum by 2010. The biggest application is extrusion of building products, and there will be more wood-plastic building products.

There are many ways to make wood-plastic composites by compounding wood with plastics (thermoplasticity and thermosetting), and their principles are different. When thermosetting resin is used, wood raw materials and resin liquids of a certain shape are usually mixed evenly at room temperature and pressure. Then, according to the properties of resin and the requirements of composite materials or their products, the products are cured under certain pressure and temperature, which can initiate cross-linking polymerization, and then processed after modification.

When using thermoplastics or resins, wood (fibers, powder, particles, etc.) is usually mixed with plastics and processing aids at room temperature, then the mixture is heated to high temperature to melt the plastics and fully mix with wood. Then the flowing wood-plastic mixture is formed under pressure (usually by extrusion, injection, hot pressing, etc.) and then cooled and solidified to obtain wood-plastic. Composite products.