The PVC material itself is not toxic. If it is a monomer or degradation product that is not fully polymerized, it will contain a certain degree of toxicity. Under the irradiation of high temperature and ultraviolet rays, polyvinyl chloride will degrade. At this time, if people use it again, it will degrade. The finished products of PVC plastic are easy to cause damage to the internal system of the human body, thereby causing hepatic angiosarcoma.
1. Due to the lack of characteristics of the PVC material itself, people have to add a large number of additives to stabilize the PVC plastic. In fact, the pure PVC plastic is not toxic, but after people have added a large number of additives to transform it, the PVC plastic is more Under the comprehensive action of various additives, toxic substances are chemically reacted, that is to say, these additives can make PVC plastics into a softer chemical additive. The impact is very large.
2. PVC plastics include urea-formaldehyde and melamine-formaldehyde. If we process and manufacture PVC plastics, their reaction is not complete, which will lead to a large amount of free formaldehyde in PVC plastics, and this formaldehyde is a kind of protoplasm of cells that is poisonous. If a bowl made of PVC material is used to hold hot food, it will easily cause some cells to deteriorate after eating, which is not good for human health. Also, PVC plastic contains chlorine. When we burn it, it will produce a toxic substance that pollutes the environment.