TECASINT 4121 black

polyimide with 15 % graphite

TECASINT 4121 is based on the base polymer TECASINT 4111, plus 15% graphite. The material is particularly suitable for tribological applications thanks to its improved friction and wear behaviour. Thanks to its self lubricating property, TECASINT 4121 is well suited to dry applications.

Facts

Chemical designation
PI (Polyimide)
Colour
anthracite
Density
1,53 g/cm3

Main Features

  • very high thermal and oxidative resistance
  • very good slide and wear properties
  • very low water absorption
  • high thermal and mechanical capacity
  • high creep resistance
  • good chemical resistance
  • resistance against high energy radiation
  • sensitive to hydrolysis in higher thermal range

Target industries

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Technical details


  • product-technical-detail-collapse-item-0-lvl-1
    Mechanical properties Value Unit Parameter Norm
    Notched impact strength (Charpy) 1.4 kJ/m2 max 7.5 J, 23°C DIN EN ISO 179-1
    Impact strength (Charpy) 11 kJ/m2 max 7.5 J, 23°C DIN EN ISO 179-1
    Shore hardness 87 - Shore D, 23°C -
    Tensile strength 55 MPa 50 mm/min, 23°C DIN EN ISO 527-1
    Elongation at break (tensile test) 1.0 % 50 mm/min, 23°C DIN EN ISO 527-1
    Modulus of elasticity
    (tensile test)
    6600 MPa 1 mm/min, 23°C DIN EN ISO 527-1
    Flexural strength 113 MPa 10 mm/min, 23°C DIN EN ISO 178
    Modulus of elasticity
    (flexural test)
    6100 MPa 2 mm/min, 23°C DIN EN ISO 178
    Compression strength 200 MPa 10 mm/min, 23°C EN ISO 604
    Compression modulus 2200 MPa 1 mm/min, 23°C EN ISO 604
    Elongation at break (tensile test) 1.8 % 10 mm/min, 23°C DIN EN ISO 178
    Compression strength 183 MPa 10mm/min, 10% strain, 23°C EN ISO 604
    Compressive strain at break 15 % 10 mm/min, 23°C EN ISO 604
  • product-technical-detail-collapse-item-1-lvl-1
    Thermal properties Value Unit Parameter Norm
    Glass transition temperature n.a. C DIN EN ISO 11357
    Thermal expansion (CLTE) 5.0 10-5*1/K 50-200°C DIN 53 752
    Thermal expansion (CLTE) 6.6 10-5*1/K 200-300°C DIN 53 752
    Thermal expansion (CLTE) 9.7 10-5*1/K 300-400°C DIN 53 752
    Service temperature 294 C long-term -
  • product-technical-detail-collapse-item-2-lvl-1
    Other properties Value Unit Parameter Norm
    Water absorption 0.08 % 24 h in water, 23°C DIN EN ISO 62
    Water absorption 0.38 % 24 h in water, 80°C DIN EN ISO 62
    Flammability (UL94) V0 - corresponding to DIN IEC 60695-11-10;

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