PVC can be divided into calcium carbide method and ethylene method.
One: calcium carbide method. PVC is made of coal gangue, electricity and other raw materials, and it is the cheapest in PVC cars. The price trend depends on electricity price, local resource cost and transportation cost, but on the whole, calcium carbide PVC has always been lower than ethylene PVC, and the price per ton of 500 yuan is even lower.
Second, the second method is to extract ethylene monomer from petroleum and then polymerize it with other raw materials to produce PVC by ethylene method. Generally, the cost of petroleum accounts for 60% of the cost of PVC produced by ethylene process.
Three: PVC resin powder can not directly produce products, but also need to add related additives and additives, such as stabilizers, lubricants, plasticizers or toughening agents. , accounting for about 73% of the total formula, and the price of these auxiliary raw materials is much higher than that of PVC resin powder. ..
Therefore, there are many comprehensive factors that affect the price of PVC, rather than simply judging from one aspect.
PVC is not like PP\PE\ABS, because these plastic raw materials are completely cracked from oil, so when oil goes up, PP\PE\ABS goes up, and when oil goes down, PP\PE\ABS goes down. ..