Polyester - DMC; High Heat

Aug 21 2001

Advantages

Highest maximum operating temperature, tensile strength, flexural modulus, heat distortion temperature and volume resistance compared with other polyester DMC’s.

Disadvantages

Lowest notched izod impact strength and more expensive than other polyester DMC’s.

Typical Properties

Property

Value

Density  (g/cm3)

1.8

Surface Hardness

RM110

Tensile Strength (MPa)

45

Flexural Modulus (GPa)

9.5

Notched Izod (kJ/m)

0.3

Linear Expansion (/°C x 10-5)

2.5

Elongation at Break (%)

1.5

Strain at Yield (%)

N/A

Max. Operating Temp. (°C)

140

Water Absorption (%)

0.25

Oxygen Index (%)

22

Flammability UL94

HB

Volume Resistivity (log ohm.cm)

15

Dielectric Strength (MV/m)

15

Dissipation Factor1kHz

0.01

Dielectric Constant  1kHz

5

HDT @ 0.45 MPa (°C)

260+

HDT @ 1.80 MPa (°C)

260

Material Drying  hrs @ °C

NA

Melting Temp. Range (°C)

20 -  60

Mould Shrinkage (%)

0.25

Mould Temp. Range (°C)

120 - 160

Applications

In resin transfer moulding of products under high mechanical load such as automotive parts, also used in the electro-technical and electronic industry.

 

Source : Abstracted from Plascams

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

 

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