Polystyrene is a versatile thermoplastic that is available in a wide range of formulations. The range of properties available along with the ease of processing make polystyrene a good choice for many applications. Unmodified polystyrene is clear, rigid, brittle and moderately strong. Its electrical properties are good though it has relatively low heat resistance.
Polystyrene is soluble in most chlorinated and aromatic solvents though not in alcohols. It is impervious to most foods, drinks and household fluids. But the resins are attacked by gasoline, lacquer thinner, turpentine and citrus-fruit-rind oil.
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|Density||1.04e3 - 1.05e3||kg/m^3||00.376 - 0.0379||lb/ft^3|
|Yield Strength||2.87e7 - 4.14e7||Pa||4.17 - 6||ksi|
|Tensile Strength||3.59e7 - 5.17e7||Pa||5.21 - 7.5||ksi|
|Elongation||0.012 - 0.025||% strain||1.2 - 2.5||% strain|
|Hardness (Vickers)||8.43e7 - 1.22e8||Pa||8.6 - 12.4||HV|
|Impact Strength (unnotched)||8.6e3 - 1.49e4||J/m^2||4.09 - 7.09||ft.lbf/in^2|
|Fracture Toughness||7e5 - 1.1e6||Pa/m^0.5||0.637 - 1||ksi/in^0.5|
|Young's Modulus||2.28e9 - 3.28e9||Pa||0.331 - 0.476||10^6 psi|
|Max Service Temperature||75 - 90||°C||167 - 194||°F|
|Insulator or Conductor||Insulator||Insulator|
|Specific Heat Capability||1.2e3 - 1.3e3||J/kg °C||0.287 - 0.31||BTU/lb. °F|
|Thermal Expansion Coefficent||9e-5 - 1.49e-4||strain/°C||50 - 83||µstrain/°F|
|CO2 Footprint||2.85 - 3.15||kg/kg||2.85 - 3.15||lb/lb|
∗ The information on this page is intended as general guidance only and is only accurate at the time of posting (see date below). Specific material properties vary by manufacturer. Please contact a Dielectric application engineer for help in choosing the optimal material for your application and budget.
Posting Date: July 30, 2012