PPA – Polyphthalamide PPA GF40
AKROMID® T5 GF 40 8 black (7963)AKROMID® T5 GF 40 8 black (7963) is a 40% glass fibre reinforced polyphthalamide with very high rigidity and strength, as well as high temperature and chemical resistance.
This aromatic PPA keeps mechanical performance even at elevated temperatures as well as moisture pic-up. The material corresponds to the European food guideline EU 10/2011 and to the American FDA 21 CFR except alcoholic beverages containing more than 8 percent alcohol. This grade is suitable for parts of kitchen and household appliances.
Properties
Tensile Modulus Tensile Strength Impact StrengthFeatures
Regulatory
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Mechanical Properties
Tensile modulus (1 mm/min | ISO 527-2) d.a.m. 15000 MPa conditioned 15000 MPa
Stress at break (5 mm/min | ISO 527-2) d.a.m. 235 MPa conditioned 230 MPa
Strain at break (5 mm/min | ISO 527-2) d.a.m. 2,4 % conditioned 2,4 %
Flexural modulus (2 mm/min | ISO 178) d.a.m. 15600 MPa conditioned 15000 MPa
Charpy impact strength (23°C | ISO 179-1/1eU) d.a.m. 80 kJ/m² conditioned 80 kJ/m²
Charpy notched impact strength (23°C | ISO 179-1/1eA) d.a.m. 11 kJ/m² conditioned 11 kJ/m²
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Thermal Properties
Temperature of deflection under load HDT/A (1,8 MPa | ISO 75) 280 °C
Melting temperature (DSC, 10K/min | DIN EN ISO 11357-3) 325 °C
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Flammability
Burning rate (UL 94) 1,6mm Wall thickness HB Class
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General properties
Density (23°C | ISO 1183) 1,5 g/cm³
Molding shrinkage (flow | ISO 294-4) 0,1-0,3 %
Molding shrinkage (transverse | ISO 294-4) 0,5-0,7 %
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Rheological Properties
Flowability (1mm Thickness | AKRO) 120 mm
Flowability (2mm Thickness | AKRO) 300 mm
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.
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Drying time | 0 - 4 h |
| Drying temperature (τ ≤ -30°C) | 120°C | |
| Processing moisture | 0,02 - 0,1% | |
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Feed section | 60 - 90°C |
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Temperature zone 1 - Zone 4 | 320 - 350°C |
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Nozzle temperature | 330 - 350°C |
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Melt temperature | 330 - 350°C |
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Mold temperature | 120 - 160°C |
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Holding pressure, spec. | 300 - 800 bar |
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Back pressure, spec. | 50 - 150 bar |
| Injection speed | medium to high | |
| Screw speed | 8 - 15 m/min | |
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.
