[Abstract]:

PVC can be divided into soft PVC and hard PVC. Hard PVC accounts for about 2 / 3 of the market, while soft PVC accounts for 1 / 3. Soft PVC is generally used for floor, ceiling and leather surface, but because soft PVC contains softener (which is also the difference between soft PVC and hard PVC), it is easy to become brittle and difficult to preserve, so its use scope is limited. Hard PVC does not contain softener, so it has good flexibility, easy to form, not easy to brittle, non-toxic and pollution-free, long storage time, so it has great development and application value. Hereinafter referred to as PVC. Soft PVC is mostly used to make vacuum plastic absorption film, which can be divided into soft PVC and hard PVC. Hard PVC accounts for about 2 / 3 of the market, while soft PVC accounts for 1 / 3. Soft PVC is generally used for floor, ceiling and leather surface, but because soft PVC contains softener (which is also the difference between soft PVC and hard PVC), it is easy to become brittle and difficult to preserve, so its use scope is limited. Hard PVC does not contain softener, so it has good flexibility, easy to form, not easy to brittle, non-toxic and pollution-free, long storage time, so it has great development and application value. Hereinafter referred to as PVC. Soft PVC is mostly used to make vacuum plastic absorption film, used for surface packaging of various types of panels, so it is also known as decorative film, adhesive film, used in building materials, packaging, medicine and many other industries. Among them, building materials industry accounts for the largest proportion, accounting for 60%, followed by packaging industry, and several other small-scale application industries.