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Polyethylene

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General Polyethylene, low density (PE-LD)

General Polyethylene, high density (PE-HD)

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General Polyethylene, low density (PE-LD)

General Polyethylene, high density (PE-HD)

Standards

Equivalent standards

Chemical composition

Element

Weight %

Comment

Element

Weight %

Comment

Material Information

Fillers,

-

Glass fibre, carbon powder

Processing methods,

Injection molding, blow molding, extrusion, compression molding, thermoforming, coating

Injection molding, blow molding, extrusion, compression molding

Application areas,

Films for packaging, agricultural films, carrying bags, heavy-duty sacks, wine bottle closures

Fuel tanks, bottle cases, trash cans, gasoline canisters, beer crates, pipes, syringe plungers

Optical

Transparency,

no

no

Mechanical

Elastic modulus, E

0.2 - 0.4 GPa at 20 °C

0.6 - 1.4 GPa at 20 °C

Impact strength, Charpy notched, Ivnot

-

6 - 50 kJ/m²

Max allowed stress, σmax

6 - 17 MPa at 20 °C

14 - 32 MPa at 20 °C

Impact strength, Charpy unnotched, Iunnot

10 kJ/m²

Elongation, A

100 - 1000 % at 20 °C

100 - 1000 % at 20 °C

General

Density, ρ

0.92 - 0.92 g/cm³ at 20 °C

0.94 - 0.96 g/cm³ at 20 °C

Electrical

Dielectric constant, εr

2.2 - 2.3 [-] at 20 °C

2.3 - 2.5 [-] at 20 °C

Electrical resistivity, ρel

1.00E+15 Ω·m at 20 °C

1.00E+15 Ω·m at 20 °C

Thermal

Coefficient of thermal expansion, α

2.3E-4 - 2.5E-4 1/K at 20 °C

1.2E-4 - 2E-4 1/K at 20 °C

Max service temperature, long, Tmaxlong

60 - 75 °C

70 - 80 °C

Specific heat capacity, cp

2100 - 2500 J/(kg·K) at 20 °C

2100 - 2700 J/(kg·K) at 20 °C

Max service temperature, short, Tmaxshort

80 - 90 °C

90 - 120 °C

Flammability,

HB

HB

Thermal conductivity, λ

0.32 - 0.4 W/(m·K) at 20 °C

0.38 - 0.51 W/(m·K) at 20 °C

Melting point, Tm

105 - 120 °C

126 - 135 °C