PPA DuPont HTN52G35HSL
PPA DuPont HTN52G35HSL
PPA DuPont HTN52G35HSL is a high‑performance polyphthalamide material. It delivers outstanding performance in demanding engineering applications featuring excellent heat resistance, low water absorption, chemical resistance, mechanical strength and dimensional stabilitySonghan Pl....
Main Applications
Automotive: Components for engine and fuel systems (e.g. sensor housings, fuel line elements). Electrical & Electronics: Critical electronic parts such as connectors and controllers. Industrial Components: Parts requiring high wear resistance, e.g. bearing housings, seals.
Physical‑Mechanical‑Thermal‑Electrical Properties
表格
| Property Category | Test Item | Test Standard | Test Data | Unit |
|---|---|---|---|---|
| Physical Properties | Density | ISO 1183 | 1.45‑1.47 | g/cm³ |
| Molding Shrinkage | ISO 294‑4 | |||
| ‑ Flow Direction | 0.20‑0.30 | % | ||
| ‑ Transverse Direction | 0.80‑0.90 | % | ||
| Mechanical Properties | Tensile Strength (at break) | ISO 527‑2 | 180 | MPa |
| Tensile Modulus | ISO 527‑2 | 11,700‑12,500 | MPa | |
| Flexural Strength | 288 | MPa | ||
| Flexural Modulus | ASTM D790 | 10,200 | MPa | |
| Charpy Notched Impact Strength | ISO 179/1eA | 8.0 | kJ/m² | |
| Thermal Properties | Heat Deflection Temperature (HDT) | 1.8 MPa, ISO 75‑2/A | 285‑288 | °C |
| Melting Temperature | ISO 11357‑3 | 310 | °C | |
| Coefficient of Linear Thermal Expansion ‑ Flow Direction | ISO 11359‑2 | 2.1E‑5 | cm/cm/°C | |
| Coefficient of Linear Thermal Expansion ‑ Transverse Direction | ISO 11359‑2 | 6.7E‑5 | cm/cm/°C | |
| Electrical Properties | Volume Resistivity | IEC 60093 | 1.0E+15 | Ω·cm |
| Dielectric Strength | ASTM D149 | 25.7 | kV/mm | |
| Flammability | UL 94 Rating (0.75 mm) | UL 94 | HB | ‑ |
Injection Molding Parameters
表格
| Process Parameter | Recommended Range / Operation Notes | Remarks & Explanations |
|---|---|---|
| Pre‑drying | Mandatory drying. | PPA is hygroscopic. Sufficient drying prevents defects such as bubbles and silver streaks during processing, and avoids material degradation by hydrolysis. |
| Barrel Temperature | Melt temperature: 310‑330 °C (approx. 615‑650 °F). | Critical for processing. Too low temperature causes poor flow; excessive temperature leads to degradation. Material residence time in barrel shall not exceed 10 minutes. |
| Mold Temperature | Minimum 135 °C (approx. 275 °F), recommended 120‑140 °C. | Higher mold temperature reduces internal stress, improves surface gloss and dimensional stability, and ensures full crystallization of molded parts. |
| Injection Pressure | Adjust according to part structure and wall thickness. | ‑ |
| Injection Speed | Medium speed. | ‑ |
| Screw Speed | Medium speed. | Avoid excessive shear which may cause glass fiber breakage or material degradation. |
Note: All data above is for reference only!
