The biggest feature of the PVC of the blister machine is that it is flame retardant

It is therefore widely used in fire protection applications. But PVC releases hydrogen chloride and other toxic gases such as dioxins when it burns. The combustion of PVC is divided into two steps. First, the hydrogen chloride gas and diolefins containing double bonds are decomposed by combustion at 240-340°C, and then carbon combustion occurs at 400-470°C. It is one of the plastic products with the largest output in the world, it is cheap and widely used, and the polyvinyl chloride resin is white or light yellow powder. Different additives can be added according to different uses, and PVC plastics can exhibit different physical and mechanical properties. Adding an appropriate amount of plasticizer to polyvinyl chloride resin can make a variety of hard, soft and transparent products.