The first is the unique four properties of PVC: rain proof, fire-resistant, antistatic, easy to form. The second is the characteristics of low input and high output of PVC. So, why can PVC have these two advantages? PVC foam board manufacturers let us look for the answer from its production process.
1,Extraordinary performance
What's the difference between PVC film and common adhesive film? Ordinary adhesive film is directly pasted on the surface of the plate with glue at normal temperature, so after one or two years, the film is easy to fall off. The PVC film is applied to the surface of the board by a special vacuum press at a high temperature of 110 degrees, so it is not easy to fall off.
Although PVC film trailer has excellent quality assurance, some people may say that PVC is a chemical product after all, it just can't compare with natural materials, can't eliminate toxicity and peculiar smell, and can't avoid damage to the environment. In fact, this is not the case, because the raw materials for PVC film production in Germany are specially refined, and the toxic substances are completely extracted. Therefore, PVC is completely non-toxic and tasteless, without any stimulation to human skin or respiratory system. For those who are allergic to wood and paint, furniture or kitchenware packed with PVC film is very suitable. By using PVC film as decorative film, people can use medium density board, particleboard, plywood and fiberboard in large quantities, reduce the use of wood, thus reducing the damage to the forest and even the environment. From this point of view, PVC membrane has made a great contribution to the protection of ecological environment.
The use of PVC foam board once caused great controversy in western countries. Many people tried to replace PVC with various other materials. However, it has been proved that the quality of PVC is not inferior to other alternatives, and it is cheaper than these materials in cost. Experts have found that in many industries, abandoning PVC will result in considerable additional costs. Specific data show that abandoning PVC will increase the additional cost of several billion marks. For specific consumers, this will mean a huge additional expense. Take the windows with PVC as the surface material. If these windows do not use PVC, but use ordinary wood as the surface material, the cost of cleaning and maintenance alone will increase dramatically. In a small town in England, people have used wooden windows in the past 20 years. Some people have 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 ordinary wooden windows are twice as high as that of PVC windows.
2,Strict workmanship
The production process of PVC is not complicated. The common production line is generally composed of roller press, printing machine, back coating machine and cutting machine. The thickness is only 0.3 through the direct stirring of roller press, roller rotation and high-temperature rolling Mm to 0.7mm film, while producing and printing on the front of the film, a layer of back coating is attached on the back of the film through the back coating machine. Do not look down on this layer of back coating, it is an important guarantee of high-quality performance of PVC film. The back coating is composed of special materials and is a kind of high-energy affinity agent. It is precisely because of this back coating that PVC film can be tightly integrated with medium density plate or other plates, and it will not be glued for ten or even fifteen years. The biggest problem with ordinary adhesive film is that it can not solve the problem of membrane shedding. The whole production process of the battery car is carried out under high temperature (the temperature in the roller reaches 220 ℃), which makes the PVC film have high light resistance and fire resistance, and ensures the high quality of the PVC film. Of course, there is a high demand for production machines. Generally, the cost of production equipment for a production line is about 39 million mark, equivalent to about 160 million yuan. But on the other hand, the production process of PVC membrane is quite simple, and the machine output is also large, so in a comprehensive way, PVC is actually a product with low input and high output.
