AS Qimei Zhenjiang PN‑128
AS Qimei Zhenjiang PN‑128
Product Introduction AS Zhenjiang Qimei PN‑128 is a high‑transparency, high‑rigidity acrylonitrile‑styrene copolymer (SAN) resin. It features good heat resistance, chemical resistance and excellent processability.
Main Applications
Household & Electronic Appliances: Suitable for electrical sockets, housings, instrument casings, dashboards, battery boxes, storage‑battery enclosures, junction boxes, TV bases, cassette cases, transparent electrical panels, lighting fixtures and electric‑fan blades. Reliable electrical insulation, mechanical strength and heat resistance meet performance requirements for these components.
Automotive Industry: Applied to automotive parts such as head‑lamp housings, rear‑view mirror housings and instrument panels.
Daily‑use & Consumer Goods: Cosmetic cases, tableware, food containers, cups, toothbrush handles, pen barrels, transparent household hardware articles and toys. High transparency and moderate strength make it fit for these end‑uses.
Industrial Components: Oil‑resistant mechanical parts, tractor fuel tanks, packaging containers, filter pipes, housing covers, various switches and push‑buttons.
Performance Parameters
| Property Category | Test Item | Typical Value | Test Condition / Standard |
|---|---|---|---|
| Physical Properties | Density | 1.06‑1.07 g/cm³ | ASTM D792, 23/23℃ or ISO 1183 |
| Melt Flow Rate (MFR) | 3.0 g/10min | 200°C / 5.0 kg, ASTM D1238 | |
| Melt Flow Rate (MFR) | 28‑34 g/10min (or cm³/10min) | 220°C / 10.0 kg, ISO 1133 or ASTM D1238 | |
| Molding Shrinkage | 0.2‑0.7 % | ASTM D955 | |
| Mechanical Properties | Tensile Strength | 71‑72 MPa or 730 kg/cm² | ISO 527‑2 or ASTM D638 |
| Flexural Strength | 110 MPa or 1030‑1130 kg/cm² | ISO 178 or ASTM D790 | |
| Flexural Modulus | 3528 MPa (approx.3.6×10⁴ kg/cm²) | ASTM D790 | |
| Izod Notched Impact Strength | 1.8‑2.0 kg·cm/cm (1/4") or 3.90 kJ/m² (unnotched) | ASTM D256 or ISO 180/1U | |
| Rockwell Hardness | M‑83 | ASTM D785 | |
| Elongation at Break | 3.0‑5.0 % | ASTM D638 or ISO 527‑2 | |
| Thermal Properties | Heat‑Deflection Temperature (HDT) | 88‑92 °C (un‑annealed); 101 °C (annealed) | 1.80‑1.82 MPa, ISO 75‑2/Af or ASTM D648 |
| Vicat Softening Temperature | 105‑107 °C | ASTM D1525 or ISO 306/A50 | |
| Other Properties | Flammability (UL 94) | HB (1.5 mm / 1.6 mm / 1/16") | UL 94 |
| UL File Number | E56070 | ‑ |
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 | 200‑250℃ or 200‑270℃ | Slightly lower temperature is recommended 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. |
| Injection Speed | High‑speed injection | Beneficial for good surface gloss, color performance and minimizing weld‑lines. |
| Back Pressure | Moderate setting | Promotes uniform plasticization and degassing. |
| Runners & Gates | All conventional gate types | Proper gate dimension design is required to avoid streaks, burn marks and voids. |
Note: All data above is for reference only.
