introduction
The use of PVC board once caused a lot of controversy in Western countries, many people tried to use a variety of other materials instead of PVC. But it turns out that the quality of PVC is not inferior to other alternatives, and the cost is cheaper than these materials. Relevant experts found through research that in many industries, giving up the use of PVC will generate considerable additional costs. Specific data show that the abandonment of PVC will increase the additional cost of several billion marks. For specific consumers, this will mean a significant additional expense. Take the Windows with PVC as the surface material as an example, if these Windows do not use PVC, but use ordinary wood as the surface, then only cleaning and maintenance will increase the cost of a surprising number. In a small town in the UK, people have used wooden Windows for the past 20 years. Someone has investigated the cleaning and maintenance costs of these Windows, and compared them with the cleaning costs of PVC Windows. The results show that the cleaning costs of wooden ordinary Windows are twice as high as that of PVC Windows.
Although PVC film has excellent quality assurance, some people may say that PVC is a chemical product after all, it is not as good as natural materials, can not exclude toxicity and odor, and can not avoid harm to the environment. The fact is not the case, this is because the raw material of the German production of PVC film is specially refined, and the toxic substances are completely refined, so PVC is completely non-toxic and tasteless, without any stimulation to the human skin or respiratory system, for those who are allergic to wood and paint, the use of PVC film packaging furniture or kitchenery is very suitable. By using PVC film as decorative film, people can use a large number of medium density board, particleboard, plywood and fiberboard, reducing the amount of wood used, thereby reducing the damage to the forest and even the environment. From this point of view, PVC film has made a great contribution to the protection of the ecological environment
Physical recycling method
Physical recycling refers to the recycling process of PVC plastic sheet waste only by mechanical treatment, mainly through the process of mincing, screening, grinding, and finally obtaining film, powder, particle or other forms of recycled material. These recycled materials can be used to produce heavy packaging bags, agricultural water pipes and shoe soles. At present, there are three main technologies for recycling PVC: one is physical recycling; Second, the comprehensive utilization of chemical recovery method; The third is to recycle and utilize energy by burning PVC materials. The comprehensive utilization of physical method and chemical method is worth promoting method, they can recycle waste products again, give full play to the use of material performance.
