At present, China has 170 enterprises producing plastic and wood composite materials with an annual output of more than 1.2 billion yuan, making it the second largest producer in the world. According to experts, the scale of China's plastic and wood composite industry will grow at an annual rate of 30% to 50% in the next few years. The final market capacity will reach 10 million tons per year and the annual output value will exceed 50 billion yuan.
Wood plastic, Wood plastic composite material (Wood - PlasticComposites, WPC), is booming in recent years a new type of composite material at home and abroad, the use of polyethylene, polypropylene and PVC, etc., instead of the usual resin adhesive, with more than 35% to more than 70% of the Wood powder, rice husk, straw waste plant fiber blend into a new wooden material, then through extrusion, plastic mold, injection molding processing, production of the sheet or shaped. Mainly used in building materials, furniture, logistics packaging and other industries. The sheet material formed by hot extrusion after mixing plastic and wood powder in a certain proportion is called extruded wood-plastic composite sheet material.
According to introducing, WPC is will waste recycling waste wood and bagasse, and recycling waste plastic to a certain proportion of mixture, add special processing AIDS, through high heat extrusion and become a kind of environmental protection composite material. It has the dual properties of wood and plastic, non-toxic and environment-friendly, and its service life in normal outdoor environment is 5-10 times that of natural wood. Plastic wood composite materials have been listed as green, energy-saving and environment-friendly products by many countries, such as the United States, Canada, Australia and Germany. The American plastic wood market is the world's largest producer and consumer of plastic wood. At present, North America's annual demand for plastic and wood composite materials is about 700,000 tons, and the annual growth rate is expected to exceed 15% in the next few years. Europe's plastic wood industry has also accelerated in recent years.
According to incomplete statistics, the recycling of waste plastic is more than 2.5 million tons a year, the city each year of construction, decoration, such as wood waste in more than 8 million tons, logging and wood processing, fragments, such as waste more than 10 million tons, the branches of the countryside each year about 200 million tons of straw, rice husk, about 35 million tons, the waste recovery and recycling use task is arduous. And the plastic wood composite material with the waste wood and the waste plastic as the main raw materials can play an important role in the field of waste resource utilization. According to a rough estimate, every tons of plastic wood composite material production, equivalent to 1.5 fewer 30 year old eucalyptus tree, reduce the pollution of 60000 discarded plastic bags, reduce the number of 114 mu of farmland mulch residual risk, has a very significant ecological environment benefit, is a real low carbon industry.