TECASINT 4121 black

polyimide with 15 % graphite

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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

automotive industry
conveyor technology
hot glass technology
mechanical engineering
precision engineering

Downloads

Datasheet (PDF)

Technical details

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    Mechanical properties Value Unit Parameter Norm
    Notched impact strength (Charpy) 1.4 kJ/m2 max 7.5 J DIN EN ISO 179-1
    Impact strength (Charpy) 11 kJ/m2 max 7.5 J DIN EN ISO 179-1
    Shore hardness 87 Shore D DIN EN ISO 868
    Tensile strength 93 MPa 50 mm/min DIN EN ISO 527-1
    Modulus of elasticity
    (tensile test)    		 6600 MPa 1 mm/min DIN EN ISO 527-1
    Flexural strength 113 MPa 10 mm/min DIN EN ISO 178
    Compression strength 200 MPa 10 mm/min EN ISO 604
    Compressive strain at break 15 % 10 mm/min EN ISO 604
    Elongation at break (tensile test) 1.6 % 50 mm/min DIN EN ISO 527-1
    Modulus of elasticity
    (flexural test)    		 6100 MPa 2 mm/min DIN EN ISO 178
    Compression modulus 2200 MPa 1 mm/min EN ISO 604
    Elongation at break (flexural test) 1.8 % 10 mm/min DIN EN ISO 178
    Compression strength 183 MPa 10mm/min, 10% strain 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) 3.3 - 5.0 10-5*1/K 50-200°C DIN 53 752
    Thermal expansion (CLTE) 4.2 - 6.6 10-5*1/K 200-300°C DIN 53 752
    Service temperature 294 C long-term -
    Thermal expansion (CLTE) 6.0 - 9.7 10-5*1/K 300-400°C DIN 53 752
  • product-technical-detail-collapse-item-2-lvl-1
    Other properties Value Unit Parameter Norm
    Flammability (UL94) V0 - corresponding to DIN IEC 60695-11-10;
    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

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