Polyamide 66 (PA66)
Description (definition)
Polyamide 66 (PA66) is an engineering plastic produced by the polymerization of adipic acid and hexamethylenediamine. PA66 is characterized by high heat resistance, rigidity and wear resistance. These properties make it particularly suitable for applications that are subject to high loads or temperatures. It is frequently used in the automotive industry, in mechanical engineering and in electrical engineering.
Example
A typical example is the use of PA66 in the manufacture of gears and bearing components. Its high wear and temperature resistance ensures long-lasting and reliable performance in mechanical systems.
What properties distinguish PA66 from other polyamides?
Compared to other polyamides such as PA6, PA66 is stiffer and more temperature-resistant. It retains its dimensional stability even under high temperatures and mechanical stress. These properties make it ideal for technical components that have to withstand extreme conditions, such as in engines or gearboxes.
Which applications are typical for PA66?
PA66 is used in the automotive industry for engine covers, gear wheels, brake components and tanks. In electrical engineering, it is used in connectors and insulation, while in mechanical engineering it is used for robust components such as bearings and housings.
Can PA66 be recycled and how is it processed?
Yes, PA66 is recyclable. Mechanical recycling involves shredding and regranulating the material, while chemical recycling breaks PA66 down into its monomers. These monomers can then be polymerized again to produce new PA66. Recycled PA66 is often used for technical applications with less stringent requirements.