PPA DuPont HTN51G35HSLR
PPA DuPont HTN51G35HSLR Resin
Material Introduction: PPA DuPont HTN51G35HSLR is a high‑performance polyphthalamide material. It is specially designed for applications requiring high‑temperature resistance, high strength, low moisture absorption and excellent dimensional stability.
Main Applications
Automotive field: Components for engine system and fuel system, such as sensor housings and fuel‑line parts.
Electrical & electronics: Key electronic components including connectors and controllers.
Industrial parts: Bearing seats, pulleys and other structural components.
Performance Parameters
| Performance Category | Test Item | Test Condition / Standard | Typical Value | Unit | Remarks & Interpretation |
|---|---|---|---|---|---|
| Physical Properties | Density | ISO 1183 | 1.46‑1.47 | g/cm³ | Glass‑fiber reinforced PPA |
| Molding Shrinkage (flow direction) | ISO 294‑4 | 0.20 | % | ‑ | |
| Molding Shrinkage (cross‑flow direction) | ISO 294‑4 | 0.60 | % | ‑ | |
| Mechanical Properties | Tensile Strength at Break | ISO 527‑2 | 215‑220 | MPa | ‑ |
| Tensile Modulus | ISO 527‑2 | 11500‑12500 | MPa | ‑ | |
| Flexural Modulus | ISO 178 | 10300 | MPa | ‑ | |
| Charpy Notched Impact Strength (23°C) | ISO 179/1eA | 11 | kJ/m² | ‑ | |
| Charpy Unnotched Impact Strength (23°C) | ISO 179/1eU | 65‑70 | kJ/m² | ‑ | |
| Thermal Properties | Heat‑Distortion Temperature(HDT) | 1.8 MPa, ISO 75‑2/A | 264 | ℃ | ‑ |
| Heat‑Distortion Temperature(HDT) | 0.45 MPa, ISO 75‑2/B | 276‑284 | ℃ | ‑ | |
| Melting Temperature | ISO 11357‑3 | 300 | ℃ | ‑ | |
| Glass Transition Temperature | ISO 11357‑3 | 141 | ℃ | ‑ | |
| Coefficient of Linear Thermal Expansion (flow direction) | ISO 11359‑2 | 1.8E‑5 | cm/cm/℃ | ‑ | |
| Coefficient of Linear Thermal Expansion (cross‑flow direction) | ISO 11359‑2 | 5.5E‑5‑5.8E‑5 | cm/cm/℃ | ‑ | |
| Electrical Properties | Volume Resistivity | IEC 60093 | 1.0E+15 | Ω·cm | ‑ |
| Dielectric Strength | IEC 60243‑1 / ASTM D149 | 27.1‑36 | kV/mm | ‑ | |
| Comparative Tracking Index(CTI) | IEC 60112 | 600 | V | ‑ | |
| Flammability | UL94 Rating | 0.75 mm, UL 94 | HB | ‑ | ‑ |
Processing Parameters
| Processing Item | Recommended Range / Operation Key Points | Remarks & Instructions |
|---|---|---|
| Pre‑drying | Drying is mandatory. Dry at 120‑140 ℃ for 4‑6 hours. | Moisture content shall be kept below 0.1% to prevent molecular weight reduction caused by hydrolysis, silver streaks, bubbles and other defects. |
| Barrel Temperature | Melt temperature range:290‑330 ℃(approx.615‑650°F) | Critical processing window. Low temperature leads to poor flowability; excessive temperature causes material degradation. Residence time inside barrel shall not exceed 10 minutes. |
| Mold Temperature | 90‑130 ℃, minimum 90 ℃, up to 135 ℃(approx.275°F) per reference data. | Higher mold temperature reduces internal stress, improves surface gloss and dimensional stability, and ensures sufficient crystallization. |
| Injection Pressure | Adjust according to product structure and wall thickness. | ‑ |
| Injection Speed | Medium speed. | ‑ |
| Screw Speed | Medium speed. | Avoid excessive shear force which may break glass fibers or degrade the material. |
Disclaimer: All above data is for reference only.
