PA9T Kuraray GP2450NH‑2
PA9T Kuraray GP2450NH‑2 Resin
Material Introduction: PA9T Kuraray GP2450NH‑2 is a high‑performance polyamide 9T engineering plastic belonging to Genestar™ series. Featuring outstanding heat‑resistance, excellent dimensional stability and halogen‑free flame retardancy, it delivers reliable performance in demanding electronic‑electrical applications.
Main Applications
Electronic‑electrical connectors: Widely used for USB connectors, board‑to‑wire connectors, FPC (flexible printed circuit) connectors.
Automotive‑electronic components: Connectors working under high‑temperature engine‑compartment conditions, such as HSD connectors, vehicle‑camera modules.
Other precision parts: AV interfaces, camera modules and other components requiring high heat‑resistance and dimensional accuracy.
Performance Parameters
| Performance Category | Test Item | Test Standard | Typical Value | Unit | Remarks & Interpretation |
|---|---|---|---|---|---|
| Physical Properties | Density | ISO 1183 | 1.53 | g/cm³ | Halogen‑free flame‑retardant reinforced PA9T |
| Water Absorption (23 ℃ water, 24 hr) | ISO 62 | 0.10 | % | Ultra‑low‑moisture‑absorption characteristic | |
| Molding Shrinkage (flow direction) | ISO 294‑4 | 0.2 | % | ‑ | |
| Molding Shrinkage (cross‑flow direction) | ISO 294‑4 | 0.7 | % | ‑ | |
| Mechanical Properties | Tensile Strength | ISO 527 | 146 | MPa | ‑ |
| Elongation at Break | ISO 527 | 1.5 | % | High‑rigidity low‑elongation grade | |
| Flexural Strength | ISO 178 | 220 | MPa | ‑ | |
| Flexural Modulus | ISO 178 | 13.9 | GPa | High‑stiffness performance | |
| Charpy Notched Impact Strength | ISO 179/1eA | 9.3 | kJ/m² | ‑ | |
| Thermal Properties | Heat‑Distortion Temperature (1.8 MPa) | ASTM D648 | 285 | °C | Superior heat‑resistance |
| Melting Temperature | ASTM D4591 | 306 | °C | ‑ | |
| UL94 Rating | UL 94 | V‑0 | ‑ | Halogen‑free flame‑retardant grade |
Injection Molding Parameters
| Processing Item | Recommended Range / Operating Points | Notes & Explanations |
|---|---|---|
| Pre‑drying | Mandatory drying. Dry at 120‑140 °C for 3‑5 hours. | Critical for successful processing. Moisture content shall be controlled below 0.02%‑0.05%, to prevent molecular‑weight reduction caused by hydrolysis and defects such as silver streaks and bubbles. |
| Barrel Temperature | Melt temperature range: 310‑330 °C. | Key processing parameter. Low temperature leads to poor flowability; excessive temperature causes material degradation. Short residence time inside barrel is required. |
| Mold Temperature | 130‑150 °C. | High mold temperature reduces internal stress, improves surface gloss and dimensional stability, and ensures sufficient crystallization. |
| Injection Pressure & Speed | Medium‑to‑high injection pressure; medium‑high injection‑speed recommended. | Good flowability supports fast filling, especially suitable for thin‑wall articles. |
| Back Pressure | Proper back‑pressure (5‑15 bar suggested). | Promotes homogeneous plasticization and degassing. |
| Screw Speed | Medium rotation speed. | Avoid excessive shear force which may break glass‑fiber and trigger local overheating. |
Disclaimer: All above data is for reference only.
