PPA – Polyphthalamide PPA GF50

• Mechanical Properties

  Tensile modulus (1 mm/min | ISO 527-2)	d.a.m.	18500 MPa
  	conditioned	18500 MPa

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  Stress at break (5 mm/min | ISO 527-2)	d.a.m.	260 MPa
  	conditioned	260 MPa

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  Strain at break (5 mm/min | ISO 527-2)	d.a.m.	1,9 %
  	conditioned	1,9 %

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  Charpy impact strength (23°C | ISO 179-1/1eU)	d.a.m.	65 kJ/m²
  	conditioned	58 kJ/m²

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  Charpy notched impact strength (23°C | ISO 179-1/1eA)

  d.a.m.

  13 kJ/m²

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• Thermal Properties

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

  230 °C

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  Glass transition temperature (DSC, 2nd heating | DIN EN ISO 11357-2)

  135 °C

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  Melting temperature (DSC, 10K/min | DIN EN ISO 11357-3)

  325 °C

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• Flammability

  Burning rate (UL 94)
  0,8mm Wall thickness	HB Class
  1,6mm Wall thickness	HB Class
  3,2mm Wall thickness	HB Class

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• General properties

  Density (23°C | ISO 1183)

  1,65 g/cm³

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  Humidity absorption (70°C, 62% r.H. | ISO 1110)

  0,7-0,9 %

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  Molding shrinkage (flow | ISO 294-4)

  0,1-0,3 %

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  Molding shrinkage (transverse | ISO 294-4)

  0,4-0,6 %

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• Rheological Properties

  Flowability (2mm Thickness | AKRO)

  400 mm

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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.

	Drying time	0 - 4 h
	Drying temperature (τ ≤ -30°C)	120°C
	Processing moisture	0,02 - 0,1%
	Feed section	60 - 90°C
	Temperature zone 1 - Zone 4	320 - 350°C
	Nozzle temperature	330 - 350°C
	Melt temperature	330 - 350°C
	Mold temperature	120 - 160°C
	Holding pressure, spec.	300 - 800 bar
	Back pressure, spec.	50 - 150 bar
	Injection speed	medium to high
	Screw speed	8 - 15 m/min