Physical and chemical properties of PVC label plastic

The physical and chemical properties of PVC label plastic Release time: 2017-09-07 　　 PVC label is a polymer material that uses a chlorine atom to replace a hydrogen atom in polyethylene. PVC label material is a kind of plastic material. It is made of polyvinyl chloride resin as the main raw material, adding appropriate amount of anti-aging agents, modifiers, etc., through mixing, calendering, and vacuum forming. The transparency of PVC labels is better than polyethylene and polypropylene, but worse than polystyrene. Depending on the amount of additives, it can be divided into soft and hard polyvinyl chloride. Soft products are flexible and tough, and feel sticky. The hardness of hard products is higher than low density. Polyethylene, which is lower than polypropylene, will appear whitening at the inflection. Common products: plates, pipes, shoe soles, toys, doors and windows, wire sheaths, stationery, etc.　　PVC label products are chemically resistant and have strong resistance to oxidants, reducing agents and strong acids. However, it can be corroded by concentrated oxidizing acids such as concentrated sulfuric acid and concentrated nitric acid, and is not suitable for contact with aromatic hydrocarbons and chlorinated hydrocarbons.　　PVC label has the advantages of flame resistance, self-extinguishing, abrasion resistance, noise reduction, high strength, good electrical insulation, low price, wide material sources, and good airtight performance. The disadvantage of 　　PVC label is poor thermal stability, and it is prone to aging due to light, heat and oxygen. The long-term use temperature of most polyvinyl chloride plastic products should not exceed 55°C, but the long-term use temperature of specially formulated PVC plastics can reach 90°C. http://, PVC label Previous: Storage standard of pvc label