AS Jilin Petrochemical 2437
AS Jilin Petrochemical 2437
Product Introduction AS Jilin Petrochemical 2437 is a high‑transparency, easy‑to‑process material (also known as SAN resin). It is suitable for applications requiring good transparency and moderate mechanical strength.
Main Applications
Toys & Daily‑use Articles: Toys, tableware, food‑grade cutlery, cosmetic packaging, etc.
Electronics & Electrical Appliances: TV bases, cassette cases, electrical sockets, housings and other electronic‑electrical components.
Lighting Equipment: Lighting fixtures such as head‑lamp housings and reflectors.
Home‑Appliance Components: Refrigerator assemblies, instrument panels, instrument casings, battery boxes, junction boxes and other household‑appliance & industrial parts.
Automotive Industry: Automotive parts including head‑lamp housings, reflectors, instrument panels, etc.
Performance Parameters
| Property Category | Test Item | Typical Value | Test Standard (Reference) |
|---|---|---|---|
| Physical Properties | Density | 1.04 g/cm³ | ASTM D792 |
| Melt Flow Rate (MFR) | 30 g/10min (220°C/10kg) | ASTM D1238 | |
| Mechanical Properties | Tensile Strength | 73‑76 MPa | ASTM D638 |
| Flexural Strength | 133‑134 MPa | ASTM D790 | |
| Flexural Modulus | 3400 MPa | ASTM D790 | |
| Izod Notched Impact Strength | 1.8‑2.6 kJ/m² | ASTM D256 | |
| Rockwell Hardness (R‑Scale) | 121‑123 | ASTM D785 | |
| Thermal Properties | Heat‑Deflection Temperature (HDT) | 98 °C | ASTM D648 |
| Vicat Softening Temperature | 99 °C | ASTM D1525 | |
| Other Properties | Appearance | Transparent pellets, free of mechanical impurities | Visual inspection |
Injection‑Molding Parameters
| Process Parameter | Reference Range | Remarks & Instructions |
|---|---|---|
| Drying Treatment | 80°C, 2‑4 hours | AS resin is hygroscopic. Insufficient drying will cause surface defects such as silver streaks and bubbles on molded parts. |
| Barrel Temperature | Rear zone:180‑200℃ Middle zone:190‑210℃ Front zone:200‑210℃ Nozzle:180‑240℃ (normally slightly lower than front zone) |
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| Mold Temperature | 50‑80℃ | 50‑60°C for high‑precision molded parts; 60‑80°C for high‑gloss and heat‑resistant parts. |
| Injection Pressure | 700‑1500 kg/cm² | AS exhibits slightly lower flowability than PS, hence relatively higher injection pressure is required. |
| Holding Pressure | 30%‑60% of injection pressure | Optimize according to product wall thickness and structure. |
| Injection Speed | High‑speed injection | Delivers good surface gloss, color performance and minimizes weld‑lines. |
| Back Pressure | 5‑15 kg/cm² | Ensures uniform plasticization and degassing. Insufficient back‑pressure may trap air and cause internal defects in molded articles. |
Note: All data above is for reference only.
