AS Qimei Zhenjiang PN‑108L125
AS Qimei Zhenjiang PN‑108L125
Product Introduction AS Zhenjiang Qimei PN‑108L125 resin is a high‑transparency, high‑rigidity acrylonitrile‑styrene copolymer (AS/SAN). It features good mechanical strength, chemical resistance and excellent processability.
Main Applications
Daily‑use & Consumer Goods: Cosmetic housings, ornaments, food containers, artificial‑leather resin, kitchen utensils such as coffee cups and food‑grade cutlery. Superior chemical resistance (better than PMMA, MS and PS) and cost advantage (15%‑30% lower than PMMA and MS) make it well‑suited for these applications.
Electronic & Electrical Components: Electrical sockets, housings, instrument casings, dashboards, battery boxes, storage‑battery enclosures, TV bases and cassette cases. Reliable electrical insulation and mechanical strength satisfy performance requirements for these components.
Industrial Components: Oil‑resistant mechanical parts, tractor fuel tanks, packaging containers and filter pipes.
Automotive Industry: Automotive parts including head‑lamp housings, rear‑view mirror housings and instrument panels.
Performance Parameters
| Property Category | Test Item | Typical Value | Test Condition / Standard |
|---|---|---|---|
| Physical Properties | Density | 1.06 g/cm³ | ASTM D‑792, 23℃ |
| Melt Flow Rate (MFR) | 5.0 g/10min | 200°C / 5 kg, ASTM D‑1238 | |
| Molding Shrinkage | 0.2‑0.7 % | ASTM D‑955 | |
| Mechanical Properties | Tensile Strength | 600 kg/cm² (approx.58.8 MPa) | ASTM D‑638 |
| Flexural Strength | 900 kg/cm² (approx.88.3 MPa) | ASTM D‑790 | |
| Flexural Modulus | 35000 kg/cm² (approx.3430 MPa) | ASTM D‑790 | |
| Izod Notched Impact Strength | 1.8 kg·cm/cm | ASTM D‑256, 1/4" thickness | |
| Rockwell Hardness | M‑83 | ASTM D‑785 | |
| Elongation at Break | 5.0 % | ASTM D‑638 | |
| Thermal Properties | Heat‑Deflection Temperature (HDT) | 90 °C (un‑annealed); 100 °C (annealed) | ASTM D‑648, 1.82 MPa |
| Vicat Softening Temperature | 104‑106 °C | ASTM D‑1525 | |
| Other Properties | Flammability (UL 94) | HB (1.5 mm) | UL 94 |
Injection‑Molding Parameters
| Process Parameter | Reference Range | Remarks & Instructions |
|---|---|---|
| Drying Treatment | 80℃, 2‑4 hours | AS resin is hygroscopic. Sufficient drying is required (moisture content below 0.1% recommended), otherwise silver streaks and bubbles may occur on finished‑part surfaces. |
| Barrel Temperature | Rear zone:170‑180℃ or 180‑200℃ Middle zone:180‑200℃ or 190‑210℃ Front zone:200‑210℃ or 200‑230℃ Nozzle:180‑190℃ or 200‑220℃ |
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| Melt Processing Temperature | 200‑250℃ or 200‑270℃ | Use lower melt temperature for thick‑wall products to prevent material degradation. |
| Mold Temperature | 40‑80℃ | 50‑60°C for high‑precision parts; 60‑80°C for high‑gloss and high‑heat‑resistance requirements. Mold temperature directly affects appearance, shrinkage and warpage. |
| Injection Pressure | 350‑1300 bar | Adjust according to flow length and product structure. AS has slightly lower flowability than PS, so relatively higher injection pressure is needed. |
| Holding Pressure | Approx.30%‑60% of injection pressure | Optimize according to wall thickness and product structure to reduce internal stress and shrinkage. |
| Injection Speed | High‑speed injection | Beneficial for good surface gloss, color performance and minimizing weld‑lines. |
| Back Pressure | 5‑15 kg/cm² | Ensures uniform plasticization and degassing. Too low back‑pressure may trap air and cause internal defects such as charring. |
| Screw Speed | Medium speed (50‑80 rpm as reference) | Sufficient for uniform plasticization. |
Note: All data above is for reference only.
