Editorial Feature

Polyamide 6 - Nylon 6 - PA 6 50% Bead Filled

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This article was updated on 5th Feb 2020 by Clare Kiernan.

Polyamide 6 (PA 6) is a thermoplastic and was created as an alternative to the patented Nylon 6/6. It is a semi-crystalline polymer and has some similarities to Nylon 6/6 in terms of its properties. It is synthesized differently to most other polyamides using ring-opening polymerization rather than condensation polymerization. PA 6 can have glass beads incorporated into its structure to improve certain properties.

Advantages of Polyamide 6

Compared to unmodified PA 6, bead-filled PA 6 has:

  • Increased stiffness
  • Higher-strength
  • Higher heat distortion temperature resistance
  • Superior dimensional stability
  • Lower water absorption

Advantages of Polyamide 6

It has only one disadvantage compared to unmodified PA 6:

  • Lower elongation at break

Typical Properties

Property Value
Density (g/cm3) 1.5
Surface Hardness SD80
Tensile Strength (MPa) 75
Flexural Modulus (GPa) 5
Notched Izod (kJ/m) 0.06
Linear Expansion (/°C x 10-5) 5
Elongation at Break (%) 2
Strain at Yield (%) N/A
Max. Operating Temp. (°C) 80
Water Absorption (%) 0.7
Oxygen Index (%) 22
Flammability UL94 HB
Volume Resistivity (log ohm.cm) 15
Dielectric Strength (MV/m) 20
Dissipation Factor 1 kHz 0.2
Dielectric Constant 1 kHz 8
HDT @ 0.45 MPa (°C) 210
HDT @ 1.80 MPa (°C) 130
Material. Drying hrs @ (°C) 3 @ 95
Melting Temp. Range (°C) 260 - 290
Mould Shrinkage (%) 1
Mould Temp. Range (°C) 50 - 80

Applications of Polyamide 6

  • Automobile sector components
  • Control components
  • Housings
  • Guides
  • Dimensionally accurate base plates
  • Electrical components

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