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

Written by AZoMAug 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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