PPA DuPont HTNFR52G30NH
PPA DuPont HTNFR52G30NH Resin
Material Introduction: PPA DuPont HTNFR52G30NH is a high‑performance polyphthalamide material. It delivers excellent high‑temperature resistance, high strength and high rigidity, together with outstanding halogen‑free flame retardancy and electrical properties.
Main Applications
Electrical & electronics: Connectors, relays, circuit‑breakers and other components subjected to high‑temperature SMT reflow soldering.
Automotive field: Heat‑resistant structural parts such as sensor brackets and connectors around engine compartments.
Industrial parts: High‑temperature resistant and wear‑resistant mechanical components including gears and bearings.
Performance Parameters
| Performance Category | Test Item | Test Condition / Standard | Typical Value | Unit | Remarks & Interpretation |
|---|---|---|---|---|---|
| Physical Properties | Density | ISO 1183 | 1.44‑1.46 | g/cm³ | Glass‑fiber reinforced halogen‑free flame‑retardant PPA |
| Molding Shrinkage (MD‑flow direction) | ISO 294‑4 | 0.30 | % | ‑ | |
| Molding Shrinkage (TD‑cross‑flow direction) | ISO 294‑4 | 0.60‑1.00 | % | ‑ | |
| Mechanical Properties | Tensile Strength at Break | ISO 527‑2 | 150 | MPa | ‑ |
| Tensile Modulus | ISO 527‑2 | 10000‑10500 | MPa | ‑ | |
| Elongation at Break | ISO 527‑2 | 2.2 | % | ‑ | |
| Flexural Strength | ISO 178 | 230 | MPa | ‑ | |
| Flexural Modulus | ISO 178 | 8700‑9000 | MPa | ‑ | |
| Charpy Notched Impact Strength | 23°C, ISO 179/1eA | 8.0 | kJ/m² | ‑ | |
| Thermal Properties | Heat‑Distortion Temperature(HDT) | 1.8 MPa, unannealed, ISO 75‑2/A | 281‑283 | ℃ | ‑ |
| Melting Temperature | ISO 11357‑3 | 310 | ℃ | ‑ | |
| Continuous Service Temperature(RTI Elec) | UL 746 | 140 | ℃ | ‑ | |
| Coefficient of Linear Thermal Expansion (MD) | ISO 11359‑2 | 1.8‑2.3E‑05 | cm/cm/℃ | ‑ | |
| Coefficient of Linear Thermal Expansion (TD) | ISO 11359‑2 | 6.0‑7.5E‑05 | cm/cm/℃ | ‑ | |
| Electrical Properties | Volume Resistivity | IEC 60093 | ＞1.0E+13‑1.0E+15 | Ω·cm | ‑ |
| Comparative Tracking Index(CTI) | IEC 60112 | 600 | V | ‑ | |
| Flammability | UL94 Rating | UL 94 | V‑0 (0.4 mm,1.5 mm) | ‑ | Halogen‑free FR grade |
| Limiting Oxygen Index(LOI) | ISO 4589‑2 | 37 | % | ‑ |
Processing Parameters
| Processing Item | Recommended Range / Operation Key Points | Remarks & Instructions |
|---|---|---|
| Pre‑drying | Drying is mandatory. Dry at 100‑120 ℃ for 4‑6 hours. | Moisture content shall be kept below 0.1%(0.05% or lower is recommended). Prevent hydrolysis‑induced molecular weight drop, silver streaks, bubbles and other surface defects. |
| Barrel Temperature | Melt temperature range:310‑330 ℃ | Critical processing window. Low temperature causes poor flowability; excessive temperature triggers degradation. Residence time in barrel shall not exceed 10 minutes. |
| Mold Temperature | 120‑140 ℃, minimum 90 ℃ is recommended. | Higher mold temperature reduces internal stress, improves surface gloss and dimensional stability, and guarantees full crystallization. |
| Injection Pressure | Adjust based on product structure and wall‑thickness; medium‑high pressure is preferred. | ‑ |
| Injection Speed | Medium speed. | Excess speed brings jet marks; insufficient speed leads to short shots. |
| Screw Speed | Medium speed. | Avoid excessive shear force which may break glass fibers or degrade polymer. |
Disclaimer: All above data is for reference only.
