Classification and application of PVC sheets

Release time: 2022-08-26

The essence of PVC sheet is PVC, and the color of PVC is yellowish, translucent and glossy. The transparency is better than that of polyethylene and worse than that of polystyrene. With the different addition amount, polyvinyl chloride is divided into soft and hard products. The soft products are soft and tough, with a sticky feel. The hardness of the hard products is higher than that of low-density polyethylene, but lower than that of polypropylene. Buckling bleaching occurs.

Common products of PVC sheets: sheets, pipes, soles, toys, doors and windows, wire covers, stationery and other PVC can be divided into soft PVC and hard PVC. Among them, hard PVC accounts for about 2 / 3 of the market and soft PVC accounts for about 1 / 3. Soft PVC is generally used for floor, ceiling and leather surface. However, because soft PVC contains soft agent (which is also the difference between soft PVC and hard PVC), it is easy to become brittle and difficult to retain, so its use range is limited. Hard PVC does not contain softening agent, and has the characteristics of good flexibility, easy molding, non brittleness, non-toxic and pollution-free, and long storage time. It has great development and application value.

The essence of PVC sheet is a kind of vacuum plastic film, which is used for surface packaging of various sheets, so it is also called decorative film and self-adhesive film. It is used in many industries such as building materials, packaging and medicine. Among them, the building materials industry accounts for a large proportion, accounting for 60%, followed by the packaging industry, and some other small-scale industrial applications. Typical uses: polyvinyl chloride is rich in raw materials (oil, limestone, coke, salt and natural gas), mature in manufacturing process, low in price and widely used. It has become the general resin in the world second only to polyethylene resin, accounting for 29% of the total consumption of synthetic resin in the world. PVC is easy to process and can be processed by molding, layering, injection molding, extrusion, calendering, hollow blow molding, etc.

PVC sheet is mainly used to produce plastic soft products such as artificial leather, film, wire sheath, water supply pipe, household pipe, house wall panel, commercial machine shell, electronic product packaging, medical equipment, food packaging, and also can produce plastic hard products such as sheet, door and window valves.

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