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Polyamide 66 (Nylon 66)

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Polyamide 66 (PA66, Nylon 66) is produced by reacting hexamethylene diamine and adipic acid. Nylon 66 is a semi-crystalline engineering resin that offers a good balance of mechanical and thermal properties, impact resistance, chemical resistance, and low friction and wear. Nylon 66 is processed by all common processing methods. 

Typical applications for nylon 66 include interior, exterior and under-hood automotive components, electrical and electronic components, connectors, office furniture, cutlery and cooking utensils, lawn and garden tools, fiber and filaments, and film.

PA 66

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Polymer Characteristics

  • Good strength and stiffness
  • Good temperature resistance
  • Good impact / toughness
  • Good chemical resistance
  • Good tribological properties
  • Good creep resistance

Grades

  • Glass fiber
  • Glass bead
  • Aramid fiber
  • Carbon fiber
  • Glass fiber/mineral reinforced
  • Mineral
  • Flame retardant
  • UV stabilized
  • Hydrolysis resistant grades
  • Impact modified
  • Nucleated
  • Lubricated
  • Heat stabilized

Processing Methods

  • Injection molding
  • Extrusion
  • Co-extrusion
  • Blow molding
  • Film

Typical Applications

  • Connectors, switches
  • Brackets, housings
  • Intake manifolds, radiator tanks, door handles, mirror housings
  • Gears, cams, bearing
  • Vacuum cleaner handle
  • Fasteners
  • Power tool housings
  • Metal replacement

Nylon 6 versus 66

Nylon 66 has these advantages over Nylon 6:

  • Higher temperature resistance
  • Higher strength
  • Higher stiffness
  • Lower moisture absorption
  • Better abrasion resistance

Nylon 6 has these advantages over Nylon 66:

  • Slightly lower density
  • Better toughness
  • Better surface appearance
  • Lower processing temperature

In many applications, Nylon 6 and Nylon 66 can be interchangeable.

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