Polyamide CAS# 63428-84-2

Polyamide (PA), commonly referred to as nylon, ranks among the most extensively used engineering plastics. While primarily applied in synthetic fiber production, its standout advantage lies in its industry-leading abrasion resistance—surpassing all other fibers by a significant margin, with 10x higher wear resistance than cotton and 20x higher than wool. Even a small addition of polyamide fiber to blended fabrics can dramatically enhance their abrasion resistance.
Benefiting from its non-toxicity, lightweight nature, outstanding mechanical strength, superior wear resistance and good corrosion resistance, polyamide is widely used to substitute metals like copper in manufacturing bearings, gears, pump impellers and other components for machinery, chemical, instrumentation and automotive industries.

As a widely used engineering plastic, nylon finds extensive applications across machinery, automotive, electrical appliances, textile equipment, chemical equipment, aerospace and metallurgy sectors, emerging as an indispensable structural material for diverse industries. Its core characteristics are summarized below:
Excellent mechanical properties: High mechanical strength combined with good toughness.
Superior self-lubrication & friction resistance: Outstanding self-lubricating performance and low friction coefficient, extending the service life of transmission components.
Strong heat resistance: Highly crystalline nylon grades (e.g., Nylon 46) feature a high heat distortion temperature, allowing long-term operation at 150℃. Glass fiber-reinforced PA66 achieves a heat distortion temperature exceeding 250℃.
Exceptional electrical insulation: High volume resistivity and breakdown voltage, qualifying it as a premium insulation material for electrical and electronic applications.
Good weather resistance.
Water absorption trait: Nylon has relatively high water absorption, with saturated water content exceeding 3%, which may exert a certain impact on the dimensional stability of finished parts.