Extruded Polyamide Plate Nylon PA6 Sheets
Product Performance
Mechanical Properties
High Toughness and Impact Resistance: Tensile strength 50-80 MPa (50%-80% higher than PP), elongation at break ≥30% (compared to approximately 50%-100% for ordinary plastics, but lower than elastomers), Charpy notched impact strength ≥5-15 kJ/m² (still >3 kJ/m² at -20°C), capable of withstanding moderate impact loads (such as accidental collisions of mechanical components).
Medium Rigidity: Flexural strength 70-100 MPa, elastic modulus 2000-3000 MPa (more than double that of PP), suitable for withstanding moderate static loads (such as support structures).
Fatigue Resistance: Under cyclic stress of 30 MPa and frequency of 10 Hz, fatigue life >1×10⁶ cycles (3-5 times higher than PP), suitable for long-term dynamic load scenarios (such as gear transmissions).
Thermal Properties
Good heat resistance: Long-term operating temperature range -40°C to +80°C (short-term resistance to 120°C), melting point approximately 220°C (heat deflection temperature 60-80°C under a load of 1.82 MPa), easily softens at high temperatures (caution should be exercised when using at temperatures exceeding 120°C for extended periods).
Low thermal conductivity: Thermal conductivity 0.25-0.30 W/(m·K) (approximately 1/50 that of metal), exhibiting moderate thermal insulation properties (e.g., electrical insulation components).
Chemical Properties
Moderate chemical resistance: Stable to weak acids (e.g., carbonic acid, citric acid), weak bases (e.g., soapy water), and some organic solvents (e.g., ethanol, acetone) (no significant swelling at concentrations <30%). However, it is susceptible to attack by strong acids (e.g., concentrated sulfuric acid, concentrated nitric acid), strong bases (e.g., sodium hydroxide solution >10%), and halogenated hydrocarbons (e.g., carbon tetrachloride). Long-term exposure can cause molecular chain hydrolysis or swelling. Oil and Solvent Resistance: Excellent resistance to mineral oil, hydraulic oil, and silicone oil (volume change <5%), but high permeability to gasoline and diesel (may soften with long-term contact).
Electrical Properties
Excellent insulation: Volume resistivity ≥10¹⁴Ω·cm, dielectric strength 20-30 kV/mm, dielectric constant 3.5-4.0 (1kHz), suitable for low-voltage electrical insulation components (such as switch housings and junction boxes).
Processability
Easy to process: Can be processed by extrusion (sheet thickness tolerance ±0.2mm), injection molding (short molding cycle), and thermoforming (temperature 200-240°C), suitable for mass production of complex components; waste is 100% recyclable (shredded and directly used for extrusion).
Welding Compatibility: Compatible with hot air welding, ultrasonic welding, and solvent adhesives (such as formic acid), with weld strength reaching 80%-90% of the parent material (under standard operation).
Other Characteristics
Self-lubricating: The coefficient of friction is 0.15-0.3 (0.1-0.2 higher than POM, but lower than PTFE), enabling low-friction operation (e.g., bearings and guide rails) without the need for lubricants.
Wear Resistance: Akron wear value ≤ 0.15 cm³/1.61 km (50%-80% higher than PP, but lower than POM), suitable for medium- and low-speed friction applications (e.g., conveyor belt guide rails).
Significant Hygroscopicity: The water absorption rate is approximately 1.5%-2.5% (significantly affected by ambient humidity). Hygroscopicity causes dimensional expansion (linear expansion increases by 0.5%-1%) and a decrease in strength (tensile strength decreases by 20%-30%). Strict drying (drying temperature 80-90°C, drying time 4-6 hours) is required before processing.
