Advantages

Exceptional Mechanical Properties: PA66 offers extremely high tensile strength and rigidity, making products made from it incredibly strong and durable. Components like automotive engine parts and industrial gears can withstand tremendous pressure and friction while maintaining stable operation without deforming or damaging, ensuring an exceptionally long service life.

Outstanding Heat Resistance: PA66 can function in high-temperature environments, with the heat distortion temperature of glass fiber-modified PA66 reaching up to 260°C. Everyday items like electric kettle shells and electrical components are made from PA66, which remains stable and resistant to softening or deformation even with prolonged exposure to hot water and heat, providing enhanced safety.

Excellent Chemical Corrosion Resistance: PA66 shows strong resistance to various chemicals, including acids and alkalis. In applications such as chemical pipelines and storage containers, PA66 effectively prevents chemical liquid leakage, ensuring the safety of materials.

Self-lubricating and Wear-resistant: PA66 has excellent self-lubrication and wear resistance, making it ideal for applications where wear resistance is a critical requirement.

High Modification Potential: Especially when fiber-reinforced, PA66 undergoes minimal dimensional changes when transitioning from high to normal temperatures or in environments with significant humidity fluctuations. Coupled with its excellent electrical properties, PA66 is an excellent choice for precision-demanding components like electronic device housings, where dimensional accuracy is crucial.

Of course, like everything, PA66 also has its drawbacks:

High Water Absorption: This is one of its more noticeable issues. PA66 tends to absorb moisture from the air, and once it absorbs water, its rigidity may decrease and its dimensions may slightly expand. For products that require high precision, extra moisture protection may be necessary. For example, internal structural parts in high-end electronic products require careful consideration of packaging and environmental conditions.

Relatively High Cost: Compared to PA6, PA66 is more expensive due to its complex production process and higher raw material costs. This makes PA66 more costly than some standard materials. This can be a concern for manufacturers when mass-producing low-cost consumer products, which limits its widespread adoption in certain budget markets.

Overall, the advantages of PA66 far outweigh its drawbacks.

With its exceptional performance, it shines in high-end fields like aerospace, automotive manufacturing, and electronics.