VESTAKEEP® i5 G

Technical Documents

VESTAKEEP® i5 G is a natural colored, very high viscosity polyether ether ketone (PEEK) that is especially designed for long term implantable medical devices.

Details

Product Type

Polymer > Poly Ether Ether Ketone

Applications

Polymers industry

Industry

Medical purpose

Producer

Evonik

Supplier

Evonik Iran

Advantages
  • The extra high purity
  • extended quality
  • biocompatibility
  • permanent tissue/bone contact
Other Applications

long term implantable medical devices

Handling

VESTAKEEP® i5 G has been tested following ISO 10993-1.
VESTAKEEP® i5 G is supplied as cylindrical pellets.

Technical data

Quantity Value Unit Comment
Physical Properties
Density 1.30 g/ml ISO 1183@ Temperature 23°C
MVR 7 ml/10min ISO 1133 @Load 5.0 kg,Temperature 380 °C
Crystallization temperature 285 ºC Recrystallization temperature; ISO 11357; DSC
Thermal Properties
Melting point 340 ºC ISO 11357; DSC; 2nd heating
Heat Deflection temperature 205 ºC ISO 75-1/2;at 0.45 MPa
Heat Deflection temperature 150 ºC ISO 75-1/2;at 1.8 MPa
Glass transition Temperature 145 ºC 2nd heating, onset; ISO 11357; DSC
Glass transition Temperature 155 ºC 2nd heating, midpoint; ISO 11357; DSC
Vicat softening temperature 305 ºC 50N; ISO 306
Vicat softening temperature 335 ºC 10N; ISO 306
Mechanical Properties
Tensile modulus-MD 3400 MPa ISO 527-1/2
Strain at break-MD >40 % 23°C/ 50% r.h.;ISO 527-1/2
Tensile Stress at yield-MD 95 MPa 23°C/ 50% r.h.;ISO 527-1/2
Tensile Stress at break-MD >70 MPa 23°C/ 50% r.h.;ISO 527-1/2
(Charpy Impact Strength(unnotched kJ/m² ISO 179/1eU @ Temperature 23°C ; 50% r.h.
(Charpy Impact Strength(unnotched kJ/m² ISO 179/1eU @ Temperature -30°C .
Charpy Impact Strength (notched) 9 kJ/m² ISO 179/1eA@ Temperature 23°C ; 50% r.h.
Charpy Impact Strength (notched) 8 kJ/m² ISO 179/1eA@ Temperature -30°C .
Elongation at yield 5.0 % 23°C/ 50% r.h.;ISO 527-1/2
Chemical Properties
Water absorption 0.4 % ISO 62;at saturation
Moisture absorption 0.12 % ISO 62@ Temperature 23°C ; 50% r.h.