Crosslinked Polyethylene - XLPE

Polymer Type

Thermoplastic

Advantages

Higher modulus and strength at elevated temperatures.  Reduced creep compared to HDPE.  Reduced sensitivity to stress cracking.

Disadvantages

Irradiation cross-linking requires expensive plant.  Peroxide cross-linking can affect electrical properties.

Typical Properties

Property

Value

Density (g/cm3)

0.93

Surface Hardness

SD58

Tensile Strength (MPa)

18

Flexural Modulus (GPa)

0.6

Notched Izod (kJ/m)

1.06+

Linear Expansion  (/°C x 10-5)

20

Elongation at Break (%)

350

Strain at Yield (%)

N/Y

Max. Operating Temp. (°C)

90

Water Absorption (%)

0.01

Oxygen Index (%)

17

Flammability UL94

HB

Volume Resistivity (log ohm.cm)

16

Dielectric Strength (MV/m)

21

Dissipation Factor 1kHz

0.0004

Dielectric Constant  1kHz

2.2

HDT @ 0.45 MPa (°C)

60

HDT @ 1.80 MPa (°C)

60

Material. Drying  hrs @ (°C)

NA

Melting Temp. Range (°C)

150 - 170

Mould Shrinkage (%)

3

Mould Temp. Range (°C)

20 -  80

Applications

Shrink-wrap film, heat-shrinkable tubing, pipe for domestic heating systems, rotationally moulded tanks.

 

Source : Abstracted from Plascams

For more information on Plascams please visit RAPRA Technology Ltd.

 

Comments

  1. Qi Su Qi Su Singapore says:

    helpful,thx.

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