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PP (polypropylene), Chinese name polypropylene, is a kind of polymer made by polypropylene monomer through free radical polymerization. It has the non-toxic, odorless, tasteless milky white shape of high crystallization, which belongs to the crystalline material. At present, the domestic production of polypropylene resin variety is more, the production batch is relatively large flat wire grade polypropylene, bidirectional tensile polypropylene special resin (BOPP special material), injection grade polypropylene and ethylene propylene polypropylene, etc.

Characteristics of polypropylene (PP)

Polypropylene resin is the lowest density of general plastics, has good mechanical properties, rigidity, wear resistance, hardness is relatively high; Good heat resistance, poor cold resistance; No water absorption, good chemical stability, but not sunlight, poor thermal stability; Flammable, burning when the smell of oil out; Good electrical insulation, voltage resistance, transparent film, poor permeability to air and water vapor; It is good for forming film, silk and other products, but poor dyeing, printing and adhesion.

Polypropylene (PP) for use in plastic products

First, film. Mainly used for all kinds of food, industrial products, daily necessities and electrical components packaging.

Two, hollow products. Used to make all kinds of liquid fuel, chemical liquid and daily chemical container.

Three, injection molding products. Used for daily necessities and various machinery parts.

Four, all kinds of pipe, plate and sheet products. Mainly used for wire, cable sheathing and hot forming groove, etc.

5. Flat ribbons and fibers. It is used for packing and strapping articles and various braided belts for packaging.