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


  • Mechanical properties
    Mechanical propertiesValueUnitParamsNorm
    Notched impact strength (Charpy)1.4kJ/m2max 7.5 J, 23°CDIN EN ISO 179-1
    Impact strength (Charpy)11kJ/m2max 7.5 J, 23°CDIN EN ISO 179-1
    Shore hardness87-Shore D, 23°C-
    Tensile strength55MPa50 mm/min, 23°CDIN EN ISO 527-1
    Elongation at break1.0%50 mm/min, 23°CDIN EN ISO 527-1
    Modulus of elasticity
    (tensile test)
    6600MPa1 mm/min, 23°CDIN EN ISO 527-1
    Flexural strength113MPa10 mm/min, 23°CDIN EN ISO 178
    Modulus of elasticity
    (flexural test)
    6100MPa2 mm/min, 23°CDIN EN ISO 178
    Compression strength200MPa10 mm/min, 23°CEN ISO 604
    Compression modulus2200MPa1 mm/min, 23°CEN ISO 604
    Elongation at break1.8%10 mm/min, 23°CDIN EN ISO 178
    Compression strength183MPa10mm/min, 10% strain, 23°CEN ISO 604
    Compressive strain at break15%10 mm/min, 23°CEN ISO 604
  • Thermal properties
    Thermal propertiesValueUnitParamsNorm
    Glass transition temperaturen.a.CDIN EN ISO 11357
    Thermal expansion (CLTE)5.010-5*1/K50-200°CDIN 53 752
    Thermal expansion (CLTE)6.610-5*1/K200-300°CDIN 53 752
    Thermal expansion (CLTE)9.710-5*1/K300-400°CDIN 53 752
  • Other properties
    Other propertiesValueUnitParamsNorm
    Water absorption0.08%24 h in water, 23°CDIN EN ISO 62
    Water absorption0.38%24 h in water, 80°CDIN EN ISO 62
    Flammability (UL94)V0-corresponding toDIN IEC 60695-11-10;

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