ABS Daqing Petrochemical 750A
ABS Daqing Petrochemical 750A
Product Introduction ABS Daqing Petrochemical 750A is a high‑flow injection‑molding general‑purpose engineering plastic. Thanks to excellent flowability and balanced mechanical properties, it is highly suitable for manufacturing complex‑structured and thin‑wall products, and widely used in multiple industries.
Main Applications
Electronics & Electrical: Housings for printers, copiers and monitors, various button components. High flow enables easy filling of complex molds, ensuring good surface gloss and dimensional stability.
Automotive Parts: Interior trims, instrument‑panel assemblies, grilles, etc. Its impact resistance and mechanical strength meet requirements for automotive components.
Home Appliances: Internal refrigerator parts, washing‑machine control panels, vacuum‑cleaner housings, electric‑fan blades and other household‑appliance components.
Consumer Goods: Toys, stationery, luggage shells and other household articles requiring good appearance and durability.
Performance Parameters
| Property Category | Test Item | Test Condition | Test Method | Typical Value | Unit |
|---|---|---|---|---|---|
| Physical Properties | Melt Flow Rate (MFR) | 200°C /5.0 kg | ASTM D‑1238 | 4.5 | g/10min |
| Melt Flow Rate (MFR) | 200°C /21.6 kg | ASTM D‑1238 | 50 | g/10min | |
| Density | 23/23°C | ASTM D‑792 | 1.04 | g/cm³ | |
| Molding Shrinkage | ‑ | ASTM D‑955 | 0.4‑0.7 | % | |
| Mechanical Properties | Tensile Strength | 23°C | ASTM D‑638 | 480 | kg/cm² |
| Flexural Strength | 23°C | ASTM D‑790 | 650 | kg/cm² | |
| Flexural Modulus | 23°C | ASTM D‑790 | 24000 | kg/cm² | |
| Izod Notched Impact Strength | 23°C, 1/8" (3.2 mm) | ASTM D‑256 | 26 | kg·cm/cm | |
| Izod Notched Impact Strength | 23°C, 1/4" (6.4 mm) | ASTM D‑256 | 23 | kg·cm/cm | |
| Rockwell Hardness (R scale) | ‑ | ASTM D‑785 | 108 | R scale | |
| Elongation at Break | ‑ | ASTM D‑638 | 30 | % | |
| Thermal Properties | Heat‑Deflection Temperature (HDT) | Unannealed, 1.82 MPa | ASTM D‑648 | 85 | °C |
| Heat‑Deflection Temperature (HDT) | Annealed, 1.82 MPa | ASTM D‑648 | 95 | °C | |
| Vicat Softening Point | ‑ | ASTM D‑1525 | 95 | °C |
Injection‑Molding Parameters
| Process Parameter | Reference Range | Remarks & Instructions |
|---|---|---|
| Drying Treatment | 80‑85°C, 2‑4 hours | Keep hopper heated to prevent moisture re‑absorption; target moisture content ＜0.1%. |
| Barrel Temperature | Rear zone:180‑190℃ Middle zone:200‑210℃ Front zone:210‑230℃ Nozzle:210‑230℃ |
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| Mold Temperature | 50‑80℃ (commonly 60‑70℃) | ‑ |
| Injection Pressure | 60‑100 MPa | Adjust according to flow length and part structure. |
| Holding Pressure | 30%‑60% of injection pressure | ‑ |
| Injection Speed | Medium‑high speed | High‑speed improves gloss yet may cause flow marks; adopt slow‑to‑fast control for high‑appearance parts. |
| Screw Speed | 50‑80 rpm | ‑ |
| Back Pressure | 5‑15 kg/cm² (0.5‑1.5 MPa) | Proper back‑pressure ensures uniform plasticization; excessive back‑pressure reduces production efficiency. |
Note: All data above is for reference only.
