Overview
- Description: TECASINT 2021 is a plastic reinforced with 15% graphite and based on the base polymer TECASINT 2011. It is particularly suitable for tribological applications owing to its improved friction and wear behavior. Thanks to its self lubricating property, TECASINT 2021 is well suited to lubricated.
- TECASINT 2021 is a plastic reinforced with 15% graphite and based on the base polymer TECASINT 2011. It is particularly suitable for tribological applications owing to its improved friction and wear behaviour. Thanks to its self lubricating property, TECASINT 2021 is.
TECASINT 4121 / TECASINT 2021 (PI) ˌ Low friction and wear ˌ HDT / A up to 470 °C TECASINT 4111 (PI) ˌ High stiffness, modulus 6.700 MPa ˌ Heat distortion temperature HDT / A = 470 °C ˌ Low outgassing in vacuum TECASINT 2391 (PI) ˌ Modified with MoS 2 ˌ Best gliding properties in vacuum ˌ Low outgassing in vacuum TECASINT 2011 natural (PI).
What is the Material: PI 15% Graphite is an imidized material filled with 15% graphite.
Key Material Features: This material is beneficial in applications requiring improved friction and wear , while maintaining the properties of other PI materials including extreme temperature resistance, diverse chemical resistance, strength, and dimensional stability.
Other Considerations: This material is attacked by hot water/steam.
Physical
Property | Value | Typical ASTM Test |
---|---|---|
Chemical Designation | (PI) Polyimide | |
Trade Names (®, ™) | Tecasint 2021, Vespel SP-21, Duratron PI D7015G | |
Filler | 15% Graphite | |
Color | Black | |
Density (g/cm^3) | 1.46 | D 792 |
Mechanical
Property | Value | Typical ASTM Test |
---|---|---|
Modulus of Elasticity (Tensile Test) (psi) | 638000 | D 638 |
Tensile Strength at Yield (psi) | 14645 | D 638 |
Elongation at Break (%) | 3.0 | D 638 |
Flexural Strength (psi) | 20700 | D 790 |
Modulus of Elasticity (Flexural Test) (psi) | 587000 | D 790 |
Compression Strength: 10% Strain (psi) | 19300 | D 695 |
Compression Strength: 1% Strain (psi) | 4200 | D 695 |
Compression Modulus (psi) | 420000 | D 695 |
Impact Strength (Izod) (ft-lbs/in) | 0.80 | D 256 |
Hardness (R) | 126 | D 785 |
Hardness (D) | 87 | D 785 |
Hardness (M) | 73 | D 785 |
Coefficient of Friction (Kinetic, 40 psi, 50 fpm) | 0.25 | D 3702 |
Coefficient of Friction (Static) | 0.23 | D 3702 |
Wear (K) Factor (in^3-min/ft-lbs-hr) (Against Steel, 40 psi, 50 fpm) | 1.00E-9 | D 3702 |
Thermal
Property | Value | Typical ASTM Test |
---|---|---|
Glass Transistion Temperature (°F) | 660 | D 3418 |
Deflection Temperature (°F) (264 psi) | 600 | D 648 |
Service Temperature Continuous (°F) | 536 | |
Service Temperature Intermittent (°F) | 626 | |
Thermal Expansion (CLTE) (in/in/°F) | 2.30E-5 | D 696 |
Thermal Conductivity (BTU-in/hr-ft^2-°F) | 2.7 |
Electrical
Property | Value | Typical ASTM Test |
---|---|---|
Dielectric Strength (V/mil) | 186 | D 149 |
Dissipation Factor (1MHz) | 0.007 | D 150 |
Dielectric Constant (1MHz) | 5.42 | D 150 |
Other
Property | Value | Typical ASTM Test |
---|---|---|
Moisture Absorption (%) (24 Hours) | 0.44 | D 570 |
Flammability | V-0 |
The data stated are typical values intended for reference and comparison purposes only. The data should not be used as a basis for design specifications or quality control. The information is provided as a guide to the best of our knowledge and given without obligation or liability. Testing under individual application circumstances is recommended.
Improved sliding properties due to 15w% graphite. The electrical conductivity is also better comparing to the natural Tecasint 2011.
Series of Tecasint 2000: have very high modulus, high rigidity, but compared to series of 1000 reduced moisture adsorption beside higher toughness and machining capability.
Series of Tecasint 2000: have very high modulus, high rigidity, but compared to series of 1000 reduced moisture adsorption beside higher toughness and machining capability.
Product properties
Exceptional gliding and wear-proof properties, Raised temperature applications
Properties | Unit | Method | Value |
---|---|---|---|
Colour | |||
Density | g/cm3 | DIN EN ISO 1183 | 1.45 |
Flammability (UL94) | - | DIN IEC 60695-11-10 | V0 |
Water absorption in air, 24 h / 96 h, (23ºC) | % | DIN EN ISO 62 | |
Dielectric constant | - | IEC 60250 | |
Volume resistivity | Ω*cm | IEC60093 | |
Surface resistivity | Ω | IEC60093 | |
Dielectric strength | kV/mm | IEC 60243 | |
Dielectric dissipation factor (50 Hz) | - | IEC60 250 | |
Comparative tracking index (CTI) | - | IEC 60112 | |
Thermal conductivity | W/ (K.m) | ISO 22007-4:2008 | |
Chemical resistance at 23ºC: deluted acids | - | ||
Chemical resistance at 23ºC: strong acids | - | ||
Chemical resistance at 23ºC: aliphatic hydrocarbons | - | ||
Chemical resistance at 23ºC: chlorin dissolvents | - | ||
Chemical resistance at 23ºC: alcohols | |||
Chemical resistance at 23ºC: deluted bases | - | ||
Chemical resistance at 23ºC: strong bases | - | ||
Chemical resistance at 23ºC: aromatic hydrocarbons | - | ||
Melting temperature | ºC | ISO 11357-3 | |
Glass transition temperature | ºC | DIN 53765 | 370 |
Specific heat | J/(g.K) | ISO 22007-4:2008 | |
Coefficient of linear thermal expansion (CLTE): 23 - 60ºC | m/(m.K)x10-5 | DIN EN ISO11359-1;2 | |
Coefficient of linear thermal expansion (CLTE): 23 - 100ºC | m/(m.K)x10-5 | DIN EN ISO11359-1;2 | |
Max. allowable service temperature in air, short term | ºC | ||
Max. allowable service temperature in air, long term | ºC | ||
Min. allowable service temperature in air, long term | ºC | ||
Heat deflection temperature | ºC | DIN EN ISO 75, A | |
Yield stress | MPa | DIN EN ISO 527-2 | |
Modulus of elasticity (tensile test) | MPa | DIN EN ISO 527-2 | 4400 |
Elongation at break | % | DIN EN ISO 527-2 | 3.7 |
Flexural strength | MPa | DIN EN ISO 178 | 145 |
Impact strength, Charpy | kJ/m2 | DIN EN ISO 179-1eU | 36.7 |
Tensile strength | MPa | DIN EN ISO 527-2 | 101 |
Compressive strength | MPa | EN ISO 6041% / 2% | |
Notched impact strength, charpy | kJ/m2 | DIN EN ISO 179-1eA | 2.9 |
Ball indentation hardness | MPa | ISO 2039-1 | |
Shore D hardness | - | DIN EN ISO 868 |
- A – applicable
- B – partially applicable
- C – not applicable
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