Company news

Home > News > Content
Differences Between Polyethylene And Polypropylene
Sep 20, 2017
  • Polyethylene and Polypropylene are very similar as far as physical properties.

  • However, Polypropylene can be produced optically clear where polyethylene can only be made translucent like a milk jug.

  • Polyethylene does have physical properties that allow it to stand up better in cold temperatures, particularly when using it as signs.

  • Polyethylene is a good electrical insulator. It offers good tracking resistance, however, it becomes easily electrostatically charged (which can be reduced by additions of graphite, carbon black or antistatic agents).

  • Polypropylenes are light in weight. They have a high resistance to cracking, acids, organic solvents and electrolytes. They also have high melting point and good dielectric properties and are non-toxic.

  •  Monomer of polyethylene is ethylene and monomer of polypropylene is propylene.

  • Polyethylene has a lower melting point compared to the higher melting point of polypropylene. (this may be a good test for you)

  • Polypropylene is not as sturdy as polyethylene.

  • Polypropylene is stiffer and resistant to chemicals and organic solvents compared to polyethylene.

  • Polypropylene is pure, non-stretching and generally more rigid than polyethylene.