PVC decking is Polyvinylchlorid, the main component is polyvinyl chloride, bright color, corrosion resistance, durable. It is a popular and widely used synthetic material in the world. It is the second most used synthetic material in the world. According to statistics, in 1995 alone, the production of PVC in Europe was about 5 million tons, and its consumption was 5.3 million tons. Production and consumption of PVC in Germany averaged 1.4 million tons. PVC is being produced and used worldwide at a rate of 4%. In recent years, the growth of PVC in southeast Asia is particularly significant, which is due to the urgent need for infrastructure construction in southeast Asian countries. Among the materials that can produce three-dimensional surface film, PVC is the most suitable material. PVC Wood Plastic Foam Products PVC decking in a higher temperature, such as 130℃ or so will slowly decompose gas, this gas is harmful to the human body, so PVC products should not be used as food packaging. Bakelwood (phenolic plastic) contains free phenol and formaldehyde, which is toxic to human body, so it is not suitable for food storage and packaging. Although dianyu (urine aldehyde plastic) odorless tasteless, but in 100℃ boiling water or used as vinegar food, there will be free formaldehyde precipitation, harmful to the human body, so it is not suitable for eating utensils or food packaging. Waste plastic (some may add a little new material) more new products, because its composition is complex, it is difficult to ensure that there is no toxicity, so generally can not be used as food containers and packaging. PVC decking materials are non-toxic, colorless and odorless, and at high temperatures will slowly decompose into gas. The combustion of PVC is divided into two steps. First, the gas and the diolefins containing the double bond are decomposed by burning at 240℃ to 340℃, and then the carbon is burned at 400-470℃. (1) waterproof and moisture-proof. PVC wood plastic composite decking board fundamentally solves the problem that wood products are perishable in humid environment, or the expansion and deformation. (2) insect control, can effectively eliminate the pest harassment, extend the service life of PVC wood plastic composite plate. (3) there are many colors to choose from. PVC wood plastic composite board has natural wood feeling and wood texture, and can be customized according to their favorite color. (4) good environmental performance. No pollution, no pollution, can be recycled. PVC wood plastic composite board does not contain benzene, the content of formaldehyde is 0.2, can be recycled, to a great extent, save the use of wood, suitable for the goal of sustainable development. (5) the machinability is better, and the surface of PVC decking board can be painted. It will not crack, expand, deform and so on. Do not need to repair and maintenance, cleaning up is also very convenient, installation is also very simple, convenient construction, can save the installation time and installation costs. (6) sound absorption effect is better, energy saving performance is good, can make the indoor energy saving reached more than 30%.