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Preliminary datasheet

PPA – Polyphthalamide PPA-I GF15

AKROMID® T9 GF 15 S1 black (7820)

AKROMID® T9 GF 15 S1 black (7820) is a 15% glass fibre reinforced, cold impact strength polyphthalamide with medium stiffness and strength, as well as high chemical resistance.

 

The compound is based on PA9T and has lower moisture uptake than conventional PA6T variants. This leads to a significantly higher consistency of the glass transition temperature and higher strength at elevated temperatures especially in conditioned state.

Typical applications

Parts with tight dimensional tolerances even under high mechanical load.

Processing information

The listed values are recommendations. Higher values should be used for higher glass loadings. We recommend only de-humidifying or vacuum dryers. Extensive drying can cause filling problems and surface defects.


6 Drying time 0 - 4 h

Drying temperature (τ ≤ -30°C) 120°C

Processing moisture 0,02 - 0,1%

1 Feed section 60 - 90°C

2 Temperature zone 1 - Zone 4 310 - 340°C

3 Nozzle temperature 320 - 340°C

4 Melt temperature 320 - 340°C

5 Mold temperature 120 - 160°C

P Nach Holding pressure, spec. 300 - 800 bar

P Stau Back pressure, spec. 50 - 150 bar

Injection speed medium to high

Screw speed 8 - 15 m/min

  • Mechanical Properties
    Tensile modulus (1 mm/min | ISO 527-2)
    d.a.m. 5000 MPa

    Stress at break (5 mm/min | ISO 527-2)
    d.a.m. 120 MPa

    Strain at break (5 mm/min | ISO 527-2)
    d.a.m. 4 %

    Charpy impact strength (23°C | ISO 179-1/1eU)
    d.a.m. 73 kJ/m²

    Charpy impact strength (-30°C | ISO 179-1/1eU)
    d.a.m. 55 kJ/m²

    Charpy notched impact strength (23°C | ISO 179-1/1eA)
    d.a.m. 11 kJ/m²

    Charpy notched impact strength (-30°C | ISO 179-1/1eA)
    d.a.m. 5 kJ/m²

  • Thermal Properties
    Temperature of deflection under load HDT/A (1,8 MPa | ISO 75) 249 °C

    Temperature of deflection under load HDT/C (8 MPa | ISO 75) 122 °C

    Glass transition temperature (DSC, 2nd heating | DIN EN 11357-1) 125 °C

    Melting temperature (DSC, 10K/min | DIN EN 11357-1) 305 °C

  • Flammability
    Burning rate (UL 94)
    1,6mm Wall thickness HB Class

  • General properties

Disclaimer

All specifications and information given on this website are based on our current knowledge and experience. A legally binding promise of certain characteristics or suitability for a concrete individual case cannot be derived from this information. The information supplied here is not intended to release processors and users from the responsibility of carrying out their own tests and inspections in each concrete individual case. AKRO®, AKROMID®, AKROLEN®, AKROLOY®, AKROTEK®, ICX® and PRECITE® are registered trademarks of the Feddersen Group.

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