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Materials

Thermoplastics

Polyethersulfone is a high-performance plastic

Polyethersulfone (PES)

  • Food and beverage processing
  • Waste water recovery
  • Medical components
 

Characteristics

PES is a transparent, high-performance polymer known for its dimensional stability at high temperatures in both air and water.  

At room temperature, PES is strong, rigid and ductile with excellent creep resistance. It offers good electrical properties and chemical resistance, and like Nylon, it is tough but notch sensitive.

Applications

  • Electrical/electronic applications
  • Float switches
  • Solenoid valve body
  • Dairy connectors
  • Manifolds
  • Petrie dishes

Questions?

Our application engineers can help. With decades of experience in plastic material selection, we'll help you choose the optimal plastic for your application and budget.

To compare
the cost of this material to other thermoplastics, click here.

General Material Properties

Property   Metric units   English units
General    
Density   1.37e3 - 1.46e3 kg/m^3   0.0495 - 0.0527 lb/ft^3
Mechanical    
Yield Strength   8.41e7 - 8.96e7 Pa   9.8 - 13.8 ksi
Tensile Strength   6.76e7 - 9.52e7 Pa   11.8 - 15.7 ksi
Elongation   0.06 - 0.8 % strain   6. - 80 % strain
Hardness (Vickers)   2.47e8 - 2.64e8 Pa   25.2 - 26.9 HV
Impact Strength (unnotched)   1.9e5 - 2e5 J/m^2   90.4 - 95.2 ft.lbf/in^2
Fracture Toughness   1.14e6 - 2.26e6 Pa/m^0.5   1.04 - 2.06 ksi/in^0.5
Young's Modulus   2.41e9 - 2.83e9 Pa   0.35 - 0.41 10^6 psi
Thermal    
Max Service Temperature   150 - 180 °C   302 - 356 °F
Melting Temperature     °C     °F
Insulator or Conductor   Insulator   Insulator
Specific Heat Capability   1.37e3 - 1.42e3 J/kg °C   0.327 - 0.34 BTU/lb. °F
Thermal Expansion Coefficent   9.7e-5 - 1.01e-4 strain/°C   53.9 - 56.1 µstrain/°F
Eco    
CO2 Footprint   7 - 7.73 kg/kg   7 - 7.73 lb/lb
Recycleable   Yes   Yes

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