Polyethylene (Low Density) LDPE, LLDPE
APPLICATIONS
Squeeze bottles, toys, carrier bags, high frequency insulation, chemical tank linings, heavy duty sacks, general packaging, gas and water pipes.
PROPERTIES
Semi-rigid, translucent, very tough, weatherproof, good chemical resistance, low water absorption, easily processed by most methods, low cost.
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 ****
KEY * poor ** moderate *** good **** very good
CURRENT CASE STUDIES
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Film for packaging is one of the largest markets for low density polyethylene. Low cost, ease of sealing and good product protection have helped to make film the largest polyethylene market. |
