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- TECHNICAL DATA SHEEt: Key characteristics and APPLICATIONS

Polyamide 66 (PA66) [Nylon66]

General Information:

  • Product Name: Polyamide 66 (PA66) or Nylon 66
  • Classification: Semi-crystalline thermoplastic

 

Typical Properties:

  • Density: 1.14 – 1.15 g/cm³
  • Melt Flow Rate (MFR): Varies with grade and additives
  • Tensile Strength: 60 – 85 MPa
  • Elongation at Break: 40 – 250%
  • Tensile Modulus: 2,200 – 3,100 MPa
  • Melting Point: 255 – 265°C
  • Glass Transition Temperature: 50 – 55°C
  • Notched Izod Impact Strength: 55 – 100 J/m
  • Moisture Absorption: Up to 2.5% (hygroscopic)
  • Coefficient of Linear Thermal Expansion: 70 – 110 x 10^(-6) K^(-1)

 

 Features and Benefits:

  • High Mechanical Strength: Strong and durable material, often more rigid than PA6.
  • Wear Resistance: Exhibits good resistance against wear and abrasion.
  • Good Chemical Resistance: Resistant against many oils, greases, aliphatic hydrocarbons. Sensitive to strong acids, chlorinated hydrocarbons, and UV radiation.
  • Temperature Performance: Can withstand high temperatures, offering better heat aging properties than PA6.
  • Hygroscopic: Absorbs moisture, which can affect mechanical properties.

 

Applications:

  • Automotive: Under-the-hood components, radiator grills, headlamp covers.
  • Electrical & Electronics: Connectors, housings, switches.
  • Consumer Goods: Zippers, sporting goods, tool handles.
  • Industrial: Bearings, gears, fasteners.
  • Textiles: Used to produce nylon fibres for clothing and carpets.

 

Processing Methods:

  • Extrusion (for fibres, films, and profiles)
  • Injection Molding (for producing various components)
  • Rotational Moulding

 

Environmental Impact and Recycling:

  • PA66 can be recycled, though not as commonly as PET or PP. Recycling process includes depolymerization.
  • Keep dry before recycling due to its hygroscopic nature.
  • When incinerated, it releases water, carbon dioxide, and nitrogen without halogens, sulfur, or heavy metals.

 

Storage and Handling:

  • Store in a cool, dry place, away from direct sunlight to avoid moisture absorption.
  • Should be pre-dried before processing due to hygroscopic properties.
  • Handle with care to avoid damage.



Safety Information:

  • Generally safe for various consumer and industrial applications.
  • Ensure adequate ventilation when processing or welding PA66 to avoid inhalation of fumes.
  • Though not highly flammable, PA66 will burn and melt under direct flames.

Note: This technical data sheet provides general information and typical values for PA66. Actual specifications can differ based on manufacturer and specific product grade. Always refer to manufacturer-specific data sheets for detailed information on a particular product.

Disclaimer: The information provided is “as is” without any warranties. Users are advised to conduct their own verification and testing for specific applications.

Polymer Materials Information and Resources, Thermoplastics Polyolefin Polymer
Polyamide 6 (PA6) or Nylon 6 Properties - Technical Data Sheet, Polyamide 66 PA66
Engineering Plastics in Chemical Handling and Processing
Thermoset Polymers: Information and Resources | Poly Synthesis
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