Styrene Acrylonitrile - SAN

Polymer Type

Thermoplastic

Advantages

Better general chemical resistance than Polystyrene.  Cheaper than Acrylic.  Good combination of rigidity, strength, toughness and transparency.

Disadvantages

Less transparent than Acrylic, has a blue/grey tint.  Inferior UV resistance compared to Acrylic.  Low maximum continuous use temperature 55°C (130°F).

Typical Properties

Property

Value

Density (g/cm3)

1.07

Surface Hardness

RM80

Tensile Strength (MPa)

72

Flexural Modulus (GPa)

3.6

Notched Izod (kJ/m)

0.02

Linear Expansion  (/°C x 10-5)

7

Elongation at Break (%)

2.4

Strain at Yield (%)

3.5

Max. Operating Temp. (°C)

55

Water Absorption (%)

0.25

Oxygen Index (%)

18

Flammability UL94

HB

Volume Resistivity (log ohm.cm)

16

Dielectric Strength (MV/m)

25

Dissipation Factor 1kHz

0.01

Dielectric Constant  1kHz

3

HDT @ 0.45 MPa (°C)

96

HDT @ 1.80 MPa (°C)

84

Material. Drying  hrs @ (°C)

[email protected]

Melting Temp. Range (°C)

220 - 270

Mould Shrinkage (%)

0.6

Mould Temp. Range (°C)

50 -  80

Applications

Domestic: Cups, toothbrush handles, trays, containers, covers, and cassette cases. Industrial battery cases, dials, knobs, switches, lenses.

 

Source : Abstracted from Plascams

For more information on Plascams please visit RAPRA Technology Ltd.

 

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