Styrene Maleic Anhydride Terpolymer - SMAt

Sep 5 2001

Polymer Type

Thermoplastic

Advantages

Better impact performance than SMAc.  Higher temperature stability than ABS.  Better creep resistance than SAN or ABS.  May be electroplated.  Easily processable.

Disadvantages

Not transparent, unlike SMAc.  Resistance to alkali’s is inferior to ABS.

Typical Properties

Property

Value

Density (g/cm3)

1.07

Surface Hardness

RL98

Tensile Strength (MPa)

33

Flexural Modulus (GPa)

2.5

Notched Izod (kJ/m)

0.15

Linear Expansion  (/°C x 10-5)

8

Elongation at Break (%)

3

Strain at Yield (%)

1.8

Max. Operating Temp. (°C)

75

Water Absorption (%)

0.11

Oxygen Index (%)

19

Flammability UL94

HB

Volume Resistivity (log ohm.cm)

15

Dielectric Strength (MV/m)

16

Dissipation Factor 1kHz

0.008

Dielectric Constant  1kHz

2.8

HDT @ 0.45 MPa (°C)

110

HDT @ 1.80 MPa (°C)

104

Material. Drying  hrs @ (°C)

2 @ 95

Melting Temp. Range (°C)

210 - 250

Mould Shrinkage (%)

0.5

Mould Temp. Range (°C)

50 -  85

Applications

Interior components for cars. Housings for electrical instruments and business machines. Parts for kitchen equipment, e.g. coffee percolators. 

 

Source : Abstracted from Plascams

For more information on Plascams please visit RAPRA Technology Ltd.

 

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