raw material

Polyethylen (PE, [– CH2 – CH2 – ]n ) is obtained by polymerizing ethylene gas and is a thermoplastic from the polyolefin group.

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 ****