The advantages, disadvantages and characteristics of vinyl film
Polyvinyl chloride resin and other modifiers are made by calendering process or blow molding process. Generally, the thickness is 0.08~0.2 mm, and the thickness is greater than 0.25mm called PVC sheet. PVC resin is added with plasticizers, stabilizers, lubricants and other functional processing aids, and then it is calendered to form a film. This kind of shed film has good heat preservation, light transmittance, soft and easy shape, and is suitable as an outer covering material for greenhouses, large sheds and small and medium sheds. Disadvantages are: low film specific gravity and high cost; poor weather resistance, hardening and brittleness at low temperatures, and easy softening and relaxation at high temperatures; after the additives are precipitated, the film surface will absorb dust and affect light transmission; the residual film cannot be degraded and burned.
Polyvinyl chloride film can be roughly divided into two categories, one is plasticized PVC film, also known as soft PVC film (Plasticized PVC Film), and the other is unplasticized PVC film, also known as hard PVC film (Unplasticized PVC Film). Film). Among them, hard PVC accounts for about 2/3 of the market, and soft PVC accounts for 1/3. Soft PVC is generally used for floors, ceilings and the surface of leather, but because soft PVC contains softener (this is also the difference between soft PVC and hard PVC), it is easy to become brittle and difficult to store, so its scope of use is limited. Hard PVC does not contain softener, so it is flexible, easy to form, not brittle, non-toxic and pollution-free, and has a long storage time, so it has great development and application value. The essence of PVC film is a kind of vacuum blister film, which is used for the surface packaging of various panels, so it is also called decorative film and adhesive film, which is used in building materials, packaging, medicine and many other industries. Among them, the building materials industry accounts for the largest proportion at 60%, followed by the packaging industry, and there are several other small-scale applications.
vinyl film
Polyvinyl chloride film can be roughly divided into two categories, one is plasticized PVC film, also known as soft PVC film (Plasticized PVC Film), and the other is unplasticized PVC film, also known as hard PVC film (Unplasticized PVC Film). Film). Among them, hard PVC accounts for about 2/3 of the market, and soft PVC accounts for 1/3. Soft PVC is generally used for floors, ceilings and the surface of leather, but because soft PVC contains softener (this is also the difference between soft PVC and hard PVC), it is easy to become brittle and difficult to store, so its scope of use is limited. Hard PVC does not contain softener, so it is flexible, easy to form, not brittle, non-toxic and pollution-free, and has a long storage time, so it has great development and application value. The essence of PVC film is a kind of vacuum blister film, which is used for the surface packaging of various panels, so it is also called decorative film and adhesive film, which is used in building materials, packaging, medicine and many other industries. Among them, the building materials industry accounts for the largest proportion at 60%, followed by the packaging industry, and there are several other small-scale applications.
vinyl film
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