VESTAKEEP® D4 G

VESTAKEEP® D4 G by Evonik is a high viscosity, high performance polyether ether ketone (PEEK) grade (supplied as cylindrical pellets). It can be processed by common melt processing techniques like injection molding and extrusion.

Details

Producer
Supplier
Advantages
  • high performance
  • biomaterial
  • superior mechanical-,thermal- and chemical resistance
  • outstanding wear comfort
  • excellent biostability
  • shock absorption capability
  • shock absorbent
Other Applications

Healthcare / Medical > Dental prosthesis

Technical data

Quantity Value Unit Comment
Appearance Properties
Physical state Pill shape
Physical Properties
MFI 15.6 g/10min 380°C/5 kg- ISO 1133
Density 1.3 g/ml ISO 1183- 23°C
Melting range 380 - 400 ºC
Thermal Properties
Heat Deflection temperature 210 ºC ISO 75-2
Heat Deflection temperature 155 ºC ISO 75-1
Vicat softening temperature 305 ºC ISO 306
Melting point 340 ºC ISO 11357, DSC (2nd heating)
Vicat softening temperature 335 ºC ISO 306
Mechanical Properties
(Charpy Impact Strength(unnotched kJ/m² ISO 179/1eU
Tensile modulus-MD 3500 MPa ISO 527-1
Charpy Impact Strength (notched) 8 kJ/m² ISO 179/1eA
Tensile Stress at yield-MD 96 MPa ISO 527-1/ ISO 527-2, @ Yield, 23°C/ 50% R.H.
Strain at break-MD >10 % ISO 527-1/ ISO 527-2, 23°C/ 50% R.H.
Chemical Properties
Water absorption 0.4 % ISO 62
Process Properties
Mold Temperature 160 - 200 ºC