PC/ABS CHIMEI PC‑345
PC/ABS CHIMEI PC‑345
PC/ABS CHIMEI PC‑345 is a general‑purpose alloy resin. It combines the advantages of polycarbonate (PC) and acrylonitrile‑butadiene‑styrene copolymer (ABS), featuring high flowability, high rigidity, high impact resistance and good moldability.
Main Applications
Automotive Accessories: automotive interior parts.
Electrical‑Electronic: mobile phone housings, electronic product shells, computer housings and accessories.
General Molded Articles: high‑grade safety helmets and other general molded products.
Physical Properties
| Property Category | Test Item | Test Standard | Data | Unit |
|---|---|---|---|---|
| Physical Properties | Density / Specific Gravity | ASTM D792 | 1.10 | g/cm³ |
| Water Absorption (23°C, 24hr) | ASTM D570 | 0.40 | % | |
| Mold Shrinkage | ASTM D955 | 0.4‑0.6 | % | |
| Melt Flow Rate (MFR) | 260°C / 5.0 kg, ASTM D1238 | 13‑17 | g/10 min | |
| Mechanical Properties | Tensile Strength (Yield, 23°C) | ASTM D638 | 49.0 | MPa |
| Elongation at Break (23°C) | ASTM D638 | 85 | % | |
| Flexural Strength (23°C) | ASTM D790 | 73.5 | MPa | |
| Flexural Modulus (23°C) | ASTM D790 | 2260 | MPa | |
| Izod Notched Impact Strength (23°C, 3.18 mm) | ASTM D256 | 480 | J/m | |
| Rockwell Hardness (R‑Scale) | ASTM D785 | 108 | — | |
| Thermal Properties | Heat‑Distortion Temperature (HDT, 1.8 MPa, unannealed) | ASTM D648 | 95.0 | °C |
| Vicat Softening Temperature | ASTM D1525 | 125 | °C | |
| Linear Thermal Expansion Coefficient‑Flow Direction (40‑100°C) | ASTM D696 | 6.0E‑5‑8.0E‑5 | cm/cm/°C | |
| Flame Retardancy | UL 94 Rating (1.50 mm) | UL 94 | HB | — |
Processing Parameters
| Process Parameter | Unit | Recommended Value / Range |
|---|---|---|
| Drying Treatment | ||
| Drying Temperature | °C | 80‑100 |
| Drying Time | h | 4.0 |
| Recommended Moisture Content | % | < 0.04 |
| Injection Molding Temperature | ||
| Rear Barrel Temperature | °C | 200‑230 |
| Middle Barrel Temperature | °C | 230‑270 |
| Front Barrel Temperature | °C | 220‑260 |
| Nozzle Temperature | °C | 220‑260 |
| Melt Processing Temperature | °C | 245‑285 |
| Mold Temperature | °C | 50‑100 |
| Injection Parameters | ||
| Injection Pressure | — | Depends on molded parts |
| Injection Speed | — | As high as possible |
Note: All information above is for reference only!
