Phenolic - PF Phenol Formaldehyde Mica and Glass Fibre Reinforced; Electrical

Aug 21 2001

Advantages

High maximum operating temperature, high oxygen index and low mould shrinkage compared with other filled phenolics.

Disadvantages

Most expensive compared with other filled phenolics.

Typical Properties

Property

Value

Density (g/cm3).

1.7

Surface Hardness

RM104

Tensile Strength (MPa)

52

Flexural Modulus (GPa)

8.2

Notched Izod (kJ/m)

0.02

Linear Expansion (/°C x 10-5)

2.2

Elongation at Break (%)

0.8

Strain at Yield (%)

N/A

Max. Operating Temp. (°C)

180

Water Absorption (%)

0.2

Oxygen Index (%)

30

Flammability UL94

V0

Volume Resistivity (log ohm.cm)

12

Dielectric Strength (MV/m)

12

Dissipation Factor1kHz

0.03

Dielectric Constant  1kHz

5.2

HDT @ 0.45 MPa (°C)

260+

HDT @ 1.80 MPa (°C)

180

Material Drying  hrs @ °C

5 @ 40

Melting Temp. Range (°C)

60 -  80

Mould Shrinkage (%)

0.2

Mould Temp. Range (°C)

160 - 170

Applications

High voltage switchgears, connectors and electrical housings.

 

Source : Abstracted from Plascams

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

 

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