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Characteristics and application of PE release film

The full name of PE is Polyethylene. PE release film is the most widely used polymer material in the world today. It is polymerized by ethylene. PE release film is divided into PE high density film, medium density polyethylene, and low-density polyethylene.

LDPE (high-pressure low-density polyethylene)

Non-toxic, tasteless, odorless, semi-transparent spherical or cylindrical particles, excellent low-temperature resistance, chemical resistance, good elongation, electrical insulation, but poor humidity, Flammable. Density: 0.910—0.9408G/CM3 (grams/cubic centimeter), suitable for processing methods such as extrusion, suction molding, injection molding, vacuum, compression molding, and transformation. The crystallinity is 55-65%, and the crystalline melting point is 108-126°C.

HDPE (low-pressure high-density polyethylene)

Non-toxic, odorless, odorless white powder or columnar or semi-circular particles, abrasion resistance, capacity resistance, impermeability, flammability, and poor flexibility. The melting point is about 130°C and the relative density is 0.941—0.965. Has good heat resistance and cold resistance. Good chemical stability, high rigidity and toughness, good mechanical strength, dielectric properties, and environmental stress cracking resistance.

Density

0.941—0.9708G/CM3 (grams/cubic centimeter). Uses: Mainly used for blister molding, manufacturing various bottles, cans, barrels, industrial storage tanks, etc., hollow packaging.
LLDPE (Linear Low-Density Polyethylene): odorless, odorless, non-toxic powder or granule, high hardness, and abrasion resistance, good heat sealability, and hot tack. Density: 0.91—0.940G/CM3 (grams/cubic centimeter); mainly used for making films, but also for injection molding and blister. Compared with LDPE, it has the advantages of high strength, good toughness, strong rigidity, heat resistance, cold resistance, etc. It also has good resistance to environmental stress cracking, tear resistance, and resistance to acids, alkalis, and organic solvents. More info click here: polyethylene film manufacturer

 

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