Technical Data Sheet
Safety Data Sheet

PS Granules

PS Granules are a polymeric plastic material available in 13 variations of different colors and sizes. Polystyrene is known for its rigidity and high impact strength. It is also an electrical insulator and has low water absorption. Common applications of PS Granules include injection molding of plastic parts and extrusion of plastic foils and foam products. The granular form allows easy feeding into processing equipment to produce final products.
Weight: 1000g
Technical Name: Polystyrene
Formula: PS
Density: 1.02g/cm³
CAS Number: 9003-53-6
Melt Flow Rate (MFR): 3.3g/10min
Colour: Natural
UOM Code: 399-084-03
SKU: 1000161335
Product Code: ST31-GL-000111
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Technical Data Sheet
Safety Data Sheet

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Material Properties for Polymers

Physical Properties
Element Value
Abbe number 30.8
Flammability HB
Radiation resistance Good
Refractive index 1.59-1.6
Resistance to Ultra-violet Poor
Limiting oxygen index( % ) 19
Water absorption - over 24 hours( % ) 0.4
Density( gcm⁻³ ) 1.05
Chemical Resistance
Element Value
Acids - concentrated Fair-Poor
Acids - dilute Good-Fair
Alcohols Good-Fair
Alkalis Good-Fair
Aromatic hydrocarbons Poor
Greases and Oils Good-Poor
Halogenated Hydrocarbons Poor
Halogens Poor
Ketones Poor
Electrical Properties
Element Value
Dielectric constant @1MHz 2.4-3.1
Dissipation factor @ 1kHz 0.0002
Dielectric strength( kV mm⁻¹ ) 20
Volume resistivity( Ohmcm ) >10¹⁶
Mechanical Properties
Element Value
Hardness - Rockwell M60-90
Poisson's ratio 0.35
Elongation at break( % ) 1.6
Tensile modulus( GPa ) 2.3-4.1
Izod impact strength( J m⁻¹ ) 19-24
Tensile strength( MPa ) 30-100
Thermal Properties
Element Value
Heat-deflection temperature - 0.45MPa( C ) 90
Heat-deflection temperature - 1.8MPa( C ) 80
Upper working temperature( C ) 50-95
Specific heat( J K⁻¹ kg⁻¹ ) 1200
Thermal conductivity( W m⁻¹ K⁻¹ ) 0.1-0.13@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 30-210
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