PC/ABS Kumho HAC‑8250NH
PC/ABS Kumho HAC‑8250NH
PC/ABS Kumho HAC‑8250NH is a halogen‑free flame‑retardant engineering plastic. It combines mechanical strength, heat resistance, impact resistance and flame retardancy of PC resin with excellent mold‑processing performance of ABS resin.
Main Applications
Electrical‑electronic: housings & internal parts for notebook monitor covers, copiers, printers and other office equipment; telecommunication devices such as mobile phone housings. Automotive industry: automotive interior components. Others: home appliances and lighting equipment.
Physical Properties
| Property Category | Test Item | Test Standard | Data | Unit |
|---|---|---|---|---|
| Physical Properties | Density | ASTM D792 | 1.17 | g/cm³ |
| MFR | ASTM D1238 | 80 | g/10 min | |
| Molding shrinkage | ASTM D955 | 0.40‑0.60 | % | |
| Mechanical Properties | Tensile strength (yield) | ASTM D638 | 52.9 | MPa |
| Flexural strength (yield) | ASTM D790 | 73.5 | MPa | |
| Flexural modulus | ASTM D790 | 2250 | MPa | |
| Izod notched impact strength (23°C) | ASTM D256 | 587 | J/m | |
| Rockwell hardness (R‑scale) | ASTM D785 | 115 | — | |
| Thermal Properties | HDT (1.8 MPa, unannealed) | ASTM D648 | 81.1 | °C |
| Vicat softening temperature | ASTM D1525 | 113 | °C | |
| Flame Retardancy | UL 94 rating (1.6 mm) | UL 94 | V‑0 | — |
Processing Parameters
| Process Parameter | Unit | Recommended Value / Range |
|---|---|---|
| Drying Treatment | ||
| Drying temperature | °C | 80‑90 |
| Drying time | h | 4‑6 |
| Max residual moisture | % | < 0.05 (preferably < 0.02) |
| Injection Molding Temperature | ||
| Melt temperature | °C | 230‑270 |
| Mold temperature | °C | 50‑80 |
| Screw Parameters | ||
| Back pressure | kg/cm² | 3‑10 |
| Screw peripheral speed | mm/s | 200 |
| Screw L/D ratio | — | 20:1‑25:1 |
| Screw compression ratio | — | 2:1‑2.5:1 |
Note: All information above is for reference only!
