Polytetrafluoroethylene - PTFE 60% Bronze Filled

Polymer Type

Thermoplastic

Advantages

High thermal conductivity. Highest modulus of PTFE range. Higher surface hardness than unmodified PTFE.

Disadvantages

Lower tensile strength, impact strength and elongation at break compared with unmodified PTFE, also more expensive than PTFE.

Typical Properties

Property

Value

Density (g/cm3)

3.8

Surface Hardness

SD72

Tensile Strength (MPa)

13

Flexural Modulus (GPa)

2

Notched Izod (kJ/m)

0.12

Linear Expansion  (/°C x 10-5)

12

Elongation at Break (%)

120

Strain at Yield (%)

N/Y

Max. Operating Temp. (°C)

180

Water Absorption (%)

0.01

Oxygen Index (%)

95

Flammability UL94

V0

Volume Resistivity (log ohm.cm)

3

Dielectric Strength (MV/m)

NA

Dissipation Factor 1kHz

NA

Dielectric Constant  1kHz

NA

HDT @ 0.45 MPa (°C)

125

HDT @ 1.80 MPa (°C)

80

Material. Drying  hrs @ (°C)

NA

Melting Temp. Range (°C)

NA

Mould Shrinkage (%)

NA

Mould Temp. Range (°C)

NA

Applications

Bearings at high speeds (particularly where unhardened shafts used). Wear pads, piston rings.

 

Source : Abstracted from Plascams

For more information on Plascams please visit RAPRA Technology Ltd.

 

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