Polyethylene Terephthalate - PET 55% Glass Fibre Reinforced

Sep 4 2001

Polymer Type

Thermoplastic

Advantages

Very high tensile strength, maximum operating temperature and heat distortion temperature, extremely high flexural modulus, better notched izod impact strength and mould shrinkage than unmodified PET.

Disadvantages

Significantly reduced elongation at break compared with unmodified PET. Incorporation of 55% glass can cause severe anisotropy in mouldings.

Typical Properties

Property

Value

Density (g/cm3)

1.80

Surface Hardness

RM100

Tensile Strength (MPa)

196

Flexural Modulus (GPa)

17.9

Notched Izod (kJ/m)

0.12

Linear Expansion  (/°C x 10-5)

1.4

Elongation at Break (%)

2

Strain at Yield (%)

N/A

Max. Operating Temp. (°C)

140

Water Absorption (%)

0.04

Oxygen Index (%)

20

Flammability UL94

HB

Volume Resistivity (log ohm.cm)

13

Dielectric Strength (MV/m)

20

Dissipation Factor 1kHz

0.005

Dielectric Constant 1kHz

4.5

HDT @ 0.45 MPa (°C)

245

HDT @ 1.80 MPa (°C)

229

Material. Drying hrs @ (°C)

2 @130

Melting Temp. Range (°C)

290 - 300

Mould Shrinkage (%)

0.45

Mould Temp. Range (°C)

90 - 110

Applications

Gears and sprockets, propellers, support brackets, housing for pumps and household appliances fixing parts for automotive bumpers.

 

Source : Abstracted from Plascams

For more information on Plascams please visit RAPRA Technology Ltd.

 

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