Polyethylen (PE, [– CH2 – CH2 – ]n ) wird durch Polymerisation von Ethylengas gewonnen und ist ein thermoplastischer Kunststoffe der Gruppe der Polyolefine.

Types of plastic material

• LDPE (LowDensityPolyEthylen), HDPE (HighDensityPolyEthylen)
• LLDPE (LinearLow), MDPE (MediumDensity)
• individual mixtures

Properties of PE and PP:

• PHYSICAL PROPERTIES
  Tensile Strength 0.20 - 0.40 N/mm²
  Notched Impact Strength no break Kj/m²
  Thermal Coefficient of expansion 100 - 220 x 10-6
  Max Cont Use Temp 65 oC
  Density 0.917 - 0.930 g/cm3
  
  RESISTANCE TO CHEMICALS
  Dilute Acid ****
  Dilute Alkalis ****
  Oils and Greases ** variable
  Aliphatic Hydrocarbons *
  Aromatic Hydrocarbons *
  Halogenated Hydrocarbons *
  Alcohols ****