Polyimide - PI 40% Glass Fibre Reinforced

Aug 16 2001

Advantages

Significantly higher flexural modulus and notched impact strength, improved tensile strength, HDT and mould shrinkage compared with unmodified polyimide.

Disadvantages

Reduced elongation at break, oxygen index and electrical characteristics compared with unmodified polyimide.

Typical Properties

Property

Value

Density   (g/cm3)

1.65

Surface Hardness

RM108

Tensile Strength (MPa)

79

Flexural Modulus (GPa)

13.2

Notched Izod (kJ/m)

0.24

Linear Expansion (/°C x 10-5)

2.4

Elongation at Break (%)

1.2

Strain at Yield (%)

N/A

Max. Operating Temp. (°C)

260

Water Absorption (%)

0.7

Oxygen Index (%)

45

Flammability UL94

V0

Volume Resistivity (log ohm.cm)

15

Dielectric Strength (MV/m)

20

Dissipation Factor1kHz

0.006

Dielectric Constant  1kHz

6

HDT @ 0.45 MPa (°C)

260+

HDT @ 1.80 MPa (°C)

380

Material Drying  hrs @ °C

NA

Melting Temp. Range (°C)

NA

Mould Shrinkage (%)

0.12

Mould Temp. Range (°C)

NA

Applications

Synchroniser rings for gearboxes, terminal boards, and electrical collectors, terminal strips.

 

Source : Abstracted from Plascams

For more information on Plascams please visit The Rubber and Plastics Research Association

 

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