When choosing home decoration materials, many people have heard of PVC materials, but if you don't know what PVC materials are, and don't know the difference between PVC film and ordinary adhesive film, then you may have difficulty choosing and don't know how to achieve the ideal home decoration effect. You can pay more attention to the characteristics of these materials, and then find the right material type to improve the efficiency of using PVC materials.

What is PVC material

PVC material is polyvinyl chloride, which has a variety of uses in the presence of initiators such as peroxides and azo compounds.

Or polymers formed by free radical polymerization under the action of light or heat. Vinyl chloride homopolymers and vinyl chloride copolymers are collectively referred to as vinyl chloride resins.

2. PVC is an amorphous white powder with a low degree of branching, a relative density of about 1.4, a glass transition temperature of 77-90°C, and begins to decompose at around 170°C [1]. It has poor stability to light and heat. At temperatures above 100°C or after prolonged exposure to sunlight, it will decompose to produce hydrogen chloride, which will further autocatalytically decompose, causing discoloration and a rapid decline in physical and mechanical properties. In practical applications, stabilizers must be added to improve stability to heat and light.

The molecular weight of industrially produced PVC is generally in the range of 50,000 to 110,000, with large polydispersity, and the molecular weight increases with decreasing polymerization temperature; it has no fixed melting point, begins to soften at 80-85°C, becomes viscoelastic at 130°C, and begins to transform into a viscous flow state at 160-180°C; it has good mechanical properties, with a tensile strength of about 60MPa and an impact strength of 5-10kJ/m2; it has excellent dielectric properties.

What is the difference between PVC film and ordinary adhesive film?

1. Ordinary adhesive films are directly pasted on the surface of the board with glue at room temperature, so after one or two years, the film is easy to fall off. PVC film is pressed on the surface of the board at a high temperature of 110 degrees using a special vacuum laminating machine, so it is not easy to fall off.

PVC is completely non-toxic and odorless, and has no irritation to human skin or respiratory system. For those who are allergic to wood and paint, furniture or kitchenware wrapped in PVC film is very suitable. By using PVC film as a decorative film, people can avoid using medium-density boards, particle boards, plywood and fiberboards in large quantities, reduce the amount of wood used, and thus reduce damage to forests and even the environment.

2. The use of PVC once caused great controversy in Western countries, and many people tried to replace PVC with various other materials. However, it has been proven that the quality of PVC is not inferior to other substitutes, and the cost is cheaper than these materials.

The above introduction is what PVC material is and what is the difference between PVC film and ordinary adhesive film. If you don't know how to consider these materials, you can judge from several angles, including specific performance and effect, approximate price. In addition, in the selection process, you should also pay more attention to the scope of use of various types, as well as the approximate functions, etc., and choose these home improvement materials according to your own space needs.