POE Dow‑DuPont 8999
POE Dow‑DuPont 8999
POE Dow‑DuPont 8999 is a polyolefin elastomer copolymerized from ethylene and octene, produced by metallocene catalyst technology. It features excellent impact resistance and aging resistance, narrow molecular weight distribution, and good compatibility with polyolefins.
Main Applications
It is mainly used for toughening modification of PP (polypropylene), PE (polyethylene) and PA (nylon). Typical applications cover automotive industry (such as bumpers, fenders, steering wheels, etc.), insulation layers and sheaths for wires and cables, as well as industrial products, home appliances, sporting goods and toys.
Physical Properties
| Property Category | Test Item | Test Standard | Test Data | Unit |
|---|---|---|---|---|
| Physical Properties | Specific Gravity | ASTM D792 | 0.865 | g/cm³ |
| MFR (190°C/2.16 kg) | ASTM D1238 | 5.0 | g/10 min | |
| Mooney Viscosity (ML 1+4, 121°C) | ASTM D1646 | 7 | MU | |
| Mechanical Properties | Hardness (Shore A) | ASTM D2240 | 64 | — |
| Hardness (Shore D) | ASTM D2240 | 12 | — | |
| 100% Secant Modulus | ASTM D638 | 1.70 | MPa | |
| Tensile Strength (Break) | ASTM D638 | 2.40 | MPa | |
| Elongation at Break | ASTM D638 | 550 | % | |
| Flexural Modulus (1% Secant) | ASTM D790 | 7.80 | MPa | |
| Tear Strength | ASTM D624 | 24.8 | kN/m | |
| Thermal Properties | Glass Transition Temperature | Internal Method | ‑53.0 | ℃ |
| Melting Temperature | Internal Method | 35.0 | ℃ | |
| Crystallization Peak Temperature | Internal Method | 29.0 | ℃ |
Processing Parameters
| Process Parameter | Recommended Range | Notes |
|---|---|---|
| Drying Temperature | No drying required | It is recommended to dry at 60°C for 2 hours after opening for moisture prevention |
| Melt Temperature | 180–220°C | Optimal range: 190–210°C |
| Mold Temperature | 30–50°C | ≥40°C is recommended for high‑gloss products |
| Injection Pressure | 50–100 MPa | Adopt low‑speed and high‑pressure setting to avoid jetting marks |
| Screw Speed | 50–120 rpm | L/D≥22, compression ratio: 2.5‑3.0 |
| Back Pressure | 0.3–0.7 MPa | To ensure uniform plasticization |
Note: All information above is for reference only!
