Polypropylene & Polyethylene


Polypropylene, which is used in many sectors such as packaging, automotive, textile, agriculture, etc., is a thermoplastic polymer.

The properties of the polypropylene obtained by polymerizing the monomer propylene are listed below;

  • Extremely resistant to acids and bases.
  • Very good resistance to fatigue and good impact resistance.
  • Friction coefficient is low and provides very good electrical insulation.
  • Has chemical resistance and is suitable for all thermoplastic processing processes.
  • Suitable for contact with food.
  • Low cost.
  • The melting temperature is around 160 degrees Celsius.
  • Low specific gravity.
  • It is affected by sunlight.
  • It is flammable and open to interaction with chlorine-containing solvents.
  • It shows high thermal expansion.


Polyethylene is the polymer with the highest production share in the world. However, polyethylene can be high and low density.

The properties of polyethylene used in many sectors such as packaging, automotive, household items, etc. are listed below;

  • Polyethylene can be molded, extruded and poured into molds of various shapes.
  • Low cost.
  • Easy to take shape.
  • Polyethylene is a material that is hard, robust, durable and has dimensional stability.
  • Absorbs water very little.
  • Shows good resistance to all weather conditions and humidity.
  • It is a good gas blocker and has good resistance to chemicals such as acid, grease and oil.
  • Polyethylene has a self-extinguishing property.
  • Resistant to ultraviolet light.
  • Suitable for contact with food.