PES: Polyethersulfone
- Short Name
- PES
- Name
- Polyethersulfone
- Group
- HTRTP - High-Temperature Resistant Thermoplastics
- General Properties
- Chemical Formula
- Structural Formula
-
Properties
- Glass Transition Temperature
- 225 to 230 °C
- Melting Temperature
- - °C
- Melting Enthalpy
- - J/g
- Decomposition Temperature
- 580 to 595 °C
- Young's Modulus
- 2600 to 2800 MPa
- Coefficient of Linear Thermal Expansion
- 60 *10¯6/K
- Specific Heat Capacity
- 1.37 J/(g*K)
- Thermal Conductivity
- 0.18 W/(m*K)
- Density
- 1.37 g/cm³
- Morphology
- Amorphous material
- General properties
- High stability, stiffness and hardness. High deformation resistance. Very good heat and oxidation resistance. Good electrical insulation properties. Hydrolysis-resistant to aqueous and alkaline media
- Processing
- Extrusion, injection molding
- Applications
- Instrument and apparatus engineering. Automobile and aircraft industry. Electrical and electronical components. Medical engineering. Photo equipment
Internet Links
NETZSCH Measurements
- Instrument
- DSC 204 F1 Phoenix®
- Sample Mass
- 12.66 mg
- Isothermal Phase
- 5 min
- Heating/Colling Rates
- 10 K/min
- Crucible
- Al, pierced
- Atmosphere
- N2 (40 ml/min)
Evaluation
The glass transition of the amorphous PES occurred at 228°C (midpoint) with a step height of 0.23 J/(g.K) and 0.24 J/(g.K) in the 1st (blue) and 2nd heating (green), respectively. In the DSC curve of the 2nd heating, the glass transition step is overlapped by a small relaxation peak, indicating the presence of ordered regions within the amorphous matrix that formed during the controlled cooling at 10 K/min.