AS Chi Mei Taiwan PN‑117L200
AS Chi Mei Taiwan PN‑117L200
Product Introduction AS Chi Mei Taiwan PN‑117L200 resin is a high‑transparency, high‑rigidity acrylonitrile‑styrene copolymer (AS/SAN). It features good mechanical strength, chemical resistance and excellent processability, and is certified for food‑contact applications.
Main Applications
Food Packaging & Containers: Food containers, lunch boxes, tableware including food‑grade cutlery, cups and refrigerator vegetable‑fruit boxes. High transparency together with compliance with food‑contact standards such as EU 10/2011 and Chinese GB standards make it well‑suited for these uses.
Daily‑use & Consumer Goods: Cosmetic cases & cosmetic packaging, toothbrush handles, pen barrels and toys.
Electronic & Electrical Components: Electrical sockets, housings, instrument casings, dashboards, battery boxes, storage‑battery enclosures, junction boxes, TV bases and cassette cases. Reliable electrical insulation and mechanical strength satisfy component requirements.
Automotive Industry: Automotive parts including head‑lamp housings, rear‑view mirror housings and instrument panels.
Industrial & Other Articles: Oil‑resistant mechanical parts, tractor fuel tanks, packaging containers, housing covers, various switches and push‑buttons.
Performance Parameters
| Property Category | Test Item | Typical Value | Test Condition / Standard |
|---|---|---|---|
| Physical Properties | Density | 1.06 g/cm³ | ASTM D792, 23℃ |
| Melt Flow Rate (MFR) | 14.0 g/10min (Cond. I); 2.8 g/10min (Cond. G) | ASTM D1238 | |
| Molding Shrinkage | 0.2‑0.7 % | ASTM D955 | |
| Mechanical Properties | Tensile Strength | 71.0 MPa (710 kg/cm²) | ASTM D638 |
| Flexural Strength | 98.1 MPa (1000 kg/cm²) | ASTM D790 | |
| Flexural Modulus | 3430 MPa (35000 kg/cm²) | ASTM D790 | |
| Izod Notched Impact Strength | 1.8 kg·cm/cm (1/8"); 1.7 kg·cm/cm (1/4") | ASTM D256 | |
| Rockwell Hardness | M‑83 | ASTM D785 | |
| Elongation at Break | 3.0 % | ASTM D638 | |
| Thermal Properties | Heat‑Deflection Temperature (HDT) | 90 °C (un‑annealed); 100 °C (annealed) | 1.82 MPa, ASTM D648 |
| Vicat Softening Temperature | 104 °C | ASTM D1525 | |
| Other Properties | Flammability (UL 94) | HB (1.6 mm) | UL 94 |
| Equilibrium Water Absorption | 0.66% | ‑ |
Injection‑Molding Parameters
| Process Parameter | Reference Range | Remarks & Instructions |
|---|---|---|
| Drying Treatment | 75‑80°C, 2‑4 hours | AS resin is hygroscopic (equilibrium water absorption:0.66%). Sufficient drying is required (moisture content below 0.1% recommended), otherwise silver streaks and bubbles may occur on finished‑part surfaces. |
| Barrel Temperature | 170‑210°C or 200‑250°C | Slightly lower temperature for thick‑wall articles. Avoid material degradation and long‑term residence of molten material inside high‑temperature barrel. |
| Mold Temperature | 40‑60°C or 40‑80°C | 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 | 40‑60 kg/cm² | Optimize according to wall thickness and 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 | Proper back‑pressure ensures uniform plasticization and degassing. |
Note: All data above is for reference only.
