PP Polypropylene

Pp
The propylene oil refinery, which is the monomer of Polypropylene (PP), is obtained in large quantities as by-products such as ethylene. Isotactic PP is commercially important because of its crystallisation. Crystal PP is a linear polymer melting at 165 ° C. Among the known polymers, it is the lightest (0.905 g / cm³). It is electrically resistant and resistant to chemicals. As with other hydrocarbon polymers, it is very resistant to moisture and impact. On the other hand, it is less resistant to heat, light and oxidizing agents than polyethylene. PP is stabilized by antioxidant and ultraviolet light absorber materials and made more durable. Polypropylene, a low density resin, is naturally translucent and milk white. It also has very good coloring ability. Generally, the material has limited thermal, chemical and electrical properties and medium strength; This last feature can be improved with glass fiber supplement. In practice, there are pure, glass fiber reinforced, impact strength and foam types. Polypropylene; It is usually processed by methods such as injection, extrusion and blowing. PP medicine, cosmetic and food box, bottle, container etc. Parts; The foam type is used to make furniture or seat cushions. Polypropylene is mainly used for fiber production. Because of its low density, it has entered the textile industry to compete with other fibers in sack and curtain construction. Easy to clean and quick drying makes it suitable for use in this area.

POLYPROPYLENE Properties:
The tensile strength is one of the highest thermoplastics and the tensile stress is 3.5 kg / mm². When reinforced with these plastic additives, the tensile stress can be increased from 112.5 kg / mm² to 386 kg / mm².
· Frailty is scarce.
· It has good abrasion properties and friction coefficient is obvious.
· It is heat resistant and is not affected by steam below 150 Cº.
· High resistance to outdoor weather.
· It is resistant to chemical acids and is not affected by diluted acids.
· It is a good insulation material because it does not have electrical conductivity.
· It is one of the thermoplastics with low density.
· It can be easily welded, machined. It can be glued with suitable adhesives, printing and marking.

POLYPROPYLENE Application Areas:
In the construction of household appliances, hospital and physic laboratory instruments, battery protective box, carrying case, chair and coffee table, waste basket, washing machine roller pedal, water installation fasteners (sleeve, körtapa etc.), automotive industry as a copolymer accumulator body, cord, shoe heel, rope, pipe.