Phenolic - PF Phenol Formaldehyde Mica Filled; Electrical

Advantages

High oxygen index, low mould shrinkage and best combination of electrical characteristics compared with other filled phenolics.

Disadvantages

Lowest notched impact strength compared with other filled phenolics.

Typical Properties

Property

Value

Density  (g/cm3)

1.70

Surface Hardness

RM104

Tensile Strength (MPa)

49

Flexural Modulus (GPa)

8.1

Notched Izod (kJ/m)

0.019

Linear Expansion (/°C x 10-5)

2.2

Elongation at Break (%)

1

Strain at Yield (%)

N/A

Max. Operating Temp. (°C)

170

Water Absorption (%)

0.15

Oxygen Index (%)

30

Flammability UL94

V0

Volume Resistivity (log ohm.cm)

12.5

Dielectric Strength (MV/m)

13

Dissipation Factor1kHz

0.025

Dielectric Constant  1kHz

4.9

HDT @ 0.45 MPa (°C)

260+

HDT @ 1.80 MPa (°C)

180

Material Drying  hrs @ °C

4 @ 40

Melting Temp. Range (°C)

60 -  80

Mould Shrinkage (%)

0.2

Mould Temp. Range (°C)

150 - 170

Applications

Switchgear, electrical housings and connectors. Under-bonnet applications.

 

Source : Abstracted from Plascams

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

 

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