Polyethylene Terephthalate - PET UV Stabilised

Sep 4 2001

Polymer Type

Thermoplastic

Advantages

Good resistance to sunlight / UV radiation with little yellowing compared with unmodified grades.

Disadvantages

The processing problems associated with unmodified PET, i.e. very dry granules needed and high moulding temperature required for optimum properties.

Typical Properties

Property

Value

Density (g/cm3)

1.38

Surface Hardness

RR68

Tensile Strength (MPa)

50

Flexural Modulus (GPa)

2.3

Notched Izod (kJ/m)

0.03

Linear Expansion  (/°C x 10-5)

8

Elongation at Break (%)

200

Strain at Yield (%)

4

Max. Operating Temp. (°C)

115

Water Absorption (%)

0.15

Oxygen Index (%)

20

Flammability UL94

HB

Volume Resistivity (log ohm.cm)

13

Dielectric Strength (MV/m)

20

Dissipation Factor 1kHz

0.01

Dielectric Constant  1kHz

3.7

HDT @ 0.45 MPa (°C)

150

HDT @ 1.80 MPa (°C)

70

Material. Drying  hrs @ (°C)

2 @130

Melting Temp. Range (°C)

270 - 290

Mould Shrinkage (%)

2

Mould Temp. Range (°C)

90 - 110

Applications

Outdoor applications such as lawn mower housings, power tool casings, shades for outdoor lamps, pump casings, seat shells.

 

Source : Abstracted from Plascams

For more information on Plascams please visit RAPRA Technology Ltd.

 

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