The conditions of WPC development

In other countries, after ten years of research, development and industrial applications, WPC has become a new industry. WPC wood flour, agricultural straw powder plant fiber and plastic as the main raw material, the use of advanced processing technology, and products can be repeated recycling. From the sensory point of view, the WPC has good wood texture, moisture, color is good, thermal insulation corrosion, mechanical properties than pure wood materials 10 times, become an ideal substitute for natural wood. In North America alone, the annual output of over 40 tons, the output value of 1.2 billion US dollars. European industrial countries, Japan and Australia, but also in the development of wood-plastic and natural fiber composite products. Mainly waste plastic pink tree branches and twigs, agricultural straw powder plant fiber as raw material, manufactured products are widely used in packaging, garden, transportation, construction, travel and other areas of the interior.

During China's "Nine Five" began to develop new materials and wood, also made in 2010, "plastic wood, plastic and steel, resource conservation, environmental protection," vision plan.

WPC application by the National Development and Reform Commission in 2004 as major industrial technology development projects. PVC Wood Flour Composites developed rapidly, with its high toughness, low cost advantage is gradually replacing the traditional wood products; but because PVC wood flour composite material is a composite wood flour to reduce ductility and impact resistance, materials brittleness, density is large nearly 2 times faster than conventional wood products, limiting its widespread use. To eliminate these drawbacks, commonly used method of adding impact modifiers to improve the impact performance, but to improve ductility and reduce the density almost ineffective.
      
In recent years, in the country, the development of wood has also been a particular application. After PVC foamed WPC, since there is a good cell structure, can effectively prevent passivation crack tip and crack expansion, while a surface treated wood flour, PVC resin that it can be well-run wet, to achieve the best combination of interfaces. This significantly improves the impact resistance and ductility of materials, greatly reducing the density of the article. Micro extrusion foaming of its low cost, high efficiency, less time consuming and easy to realize industrialization, etc., so that the added value of PVC wood-plastic composite material is greatly improved, an ideal substitute for the 21st century decoration materials.