Styrene Acrylonitrile - SAN

Sep 18 2001

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)

1.5@80

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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