PA46 DSM TW341
PA46 DSM TW341 Resin
Material Introduction: PA46 DSM TW341 is a high‑performance polyamide 46 material. Featuring high heat‑resistance, outstanding mechanical strength and rigidity, good wear‑resistance & chemical‑resistance and high flowability, it serves as an ideal candidate for many high‑temperature and high‑load working conditions.
Main Applications
Automotive components (sensors, gears); electrical‑electronic parts (connectors, circuit‑breakers); mechanical components (pump parts, gears).
Performance Parameters
| Performance Category | Test Item | Test Condition / Standard | Typical Value | Unit | Remarks & Interpretation |
|---|---|---|---|---|---|
| Physical Properties | Density | ISO 1183 | 1.18 | g/cm³ | Unreinforced PA46 grade |
| Water Absorption (saturated,23℃,50%RH) | ISO 62 | 3.7 | % | Relatively high moisture‑absorption for polyamide | |
| Molding Shrinkage | DSM internal standard | 2.0 | % | ‑ | |
| Mechanical Properties | Tensile Strength (dry,23℃) | ISO 527‑1 | 100 | MPa | Dry‑state mechanical data |
| Tensile Modulus (dry,23℃) | ISO 527‑1 | 3300 | MPa | ‑ | |
| Tensile Strength (conditioned,23℃,50%RH) | ISO 527‑1 | 55 | MPa | Property drop after moisture absorption | |
| Tensile Modulus (conditioned,23℃,50%RH) | ISO 527‑1 | 1000 | MPa | ‑ | |
| Izod Notched Impact Strength (dry,23℃) | ISO 180/1A | 10 | kJ/m² | ‑ | |
| Izod Notched Impact Strength (conditioned,23℃,50%RH) | ISO 180/1A | 40 | kJ/m² | Impact toughness rises after moisture conditioning | |
| Thermal Properties | Melting Point | ISO 11357‑3 | 295 | °C | High‑melting‑point polyamide |
| Heat‑Distortion Temperature (1.8 MPa, unannealed) | ISO 75‑2/A | 190 | °C | ‑ | |
| Relative Thermal Index (RTI,5000h) | UL 746B | 150‑163 | °C | Long‑term service temperature | |
| Coefficient of Linear Thermal Expansion (flow direction,23‑55℃) | ISO 11359‑2 | 8.5×10⁻⁵ | cm/cm/℃ | ‑ | |
| Electrical Properties | Volume Resistivity (dry) | IEC 60093 | 10¹⁵ | Ω·cm | ‑ |
| Dielectric Strength (dry) | IEC 60243‑1 | 25 | kV/mm | ‑ | |
| Comparative Tracking Index(CTI) | IEC 60112 | PLC 1 / 400 | plc / V | ‑ | |
| UL94 Rating | UL 94 | V‑2 (0.75 mm) | Class | Non‑V‑0 flame retardant grade |
Injection Molding Parameters
| Processing Item | Recommended Range / Description | Unit | Notes & Explanations |
|---|---|---|---|
| Pre‑drying | Mandatory drying; moisture content shall be kept below 0.02‑0.05%. Drying temperature：80‑120 Drying time：4‑8 h (minimum 4 h suggested) |
℃ hour |
Critical for avoiding hydrolysis‑related defects. |
| Barrel Temperature | Rear zone：280‑320 Middle zone：300‑320 Front zone：300‑320 |
℃ | ‑ |
| Nozzle Temperature | 300‑320 | ℃ | ‑ |
| Melt Temperature | 310‑320; must not exceed 330 | ℃ | Over‑temperature triggers thermal degradation. |
| Mold Temperature | 80‑120 | ℃ | ‑ |
| Injection Speed | Medium‑fast | ‑ | Suitable for high‑flow PA46 |
| Holding Pressure | Sufficiently high to eliminate sink marks & voids; avoid excessive value to prevent internal stress | ‑ | Balance between appearance and residual‑stress control |
| Back Pressure | 2.0‑10.0 (7.5 bar recommended) | MPa(bar) | Improves melt homogeneity |
| Screw Speed | 100‑200 RPM, keep moderate to prevent excessive glass‑fiber fracture (for reinforced grades) | rpm | Avoid excessive shear heating |
Disclaimer: All above data is for reference only.
