Application area: Allmän industri


Allmän fakta

Polyamide

Shortening: PA

Color: White, opaque

Coloring options: Extensive

Common uses: Gears, screws, bearings, propellers, tool shafts, door handles, machine covers, rifle butts, blocks, hoists, cable insulation, etc.

Benefits

  • Good combination of mechanical and chemical properties, fatigue and creep resistance abrasion resistance – used for example for bearings and gears.
  • Can be used at relatively high temperatures continuously (especially heat stabilized quality).
  • Polyamide 6 can be monomer cast. The method is suitable for large voltage-free details in short series.
  • Unfilled PAs are food approved.

Restrictions

  • All polyamides absorb or emit moisture (different for different types).
  • The moisture acts as a plasticizer and lowers the tensile strength, creep resistance and rigidity while increasing the impact strength and component dimensions.
  • The electrical properties are strongly influenced by the moisture content.
  • The length extension varies with temperature and moisture content.
  • The polyamides are attacked by strong mineral acids and acetic acid; they are dissolved by phenols. Some types are attacked by formic acid.