TPEE Celanese 4556
TPEE Celanese 4556 (Formerly DuPont)
TPEE Celanese 4556 (formerly DuPont) is a well‑balanced engineering elastomer with moderate hardness. Its core advantages are excellent low‑temperature toughness, outstanding dynamic fatigue performance (high resilience and flex‑fatigue resistance), and good processing adaptability.
Main Applications
Automotive Industry: Used for dust‑proof boots, seals, pipeline systems, air‑bag housings and other components.
Electrical‑Electronic Field: Suitable for cable sheaths, mobile phone antennas, protective housings for electronic devices and connectors.
Industrial Parts & Consumer Goods: Applied to produce transmission belts, hoses, seals, footwear materials and sporting goods. It can also be processed into films, sheets and profiles via extrusion.
Physical Properties
| Property Category | Test Item | Data | Test Standard |
|---|---|---|---|
| Physical Properties | Density / Specific Gravity | 1.14‑1.17 g/cm³ | ISO 1183, ASTM D792 |
| Melt Flow Rate (MFR) | 8.5 g/10min (220°C/2.16 kg) | ISO 1133, ASTM D1238 | |
| Water Absorption (24hr, 23°C) | 0.60% | ISO 62, ASTM D570 | |
| Molding Shrinkage (Flow / Transverse) | Approx. 1.1%‑1.2% | ISO 294‑4 | |
| Mechanical Properties | Hardness (Shore D, 15s) | 42‑45 | ISO 868, ASTM D2240 |
| Tensile Strength (Break) | 31‑34 MPa | ISO 527‑2, ASTM D638 | |
| Elongation at Break | ＞300% ~ 740% | ISO 527‑2, ASTM D638 | |
| Flexural Modulus (23°C) | 87‑94 MPa | ISO 178, ASTM D790 | |
| Tear Strength | 120‑122 kN/m | ISO 34‑1 | |
| Thermal Properties | Heat‑Distortion Temperature (HDT, 0.45 MPa) | 50‑60 °C | ISO 75‑2/B, ASTM D648 |
| Heat‑Distortion Temperature (HDT, 1.8 MPa) | 35‑43 °C | ISO 75‑2/A, ASTM D648 | |
| Brittleness Temperature | ‑100 °C | ISO 974 | |
| Melting Temperature (Tm) | 193 °C | ISO 11357‑3, ASTM D3418 | |
| Vicat Softening Temperature | 155‑158 °C | ISO 306, ASTM D1525 | |
| Electrical Properties | Volume Resistivity | 8.0E+12 Ω·cm | IEC 60093 |
| Dielectric Strength | 19 kV/mm | IEC 60243‑1 | |
| Flame Retardancy | UL94 Rating (1.50 mm) | HB | IEC 60695‑11‑10,‑20 |
Processing Parameters
| Processing Parameter | Recommended Range / Value | Unit |
|---|---|---|
| Pre‑drying | Required. Refer to official recommendations for exact temperature and duration | — |
| Melt Temperature | 193‑232°C (reasonable range based on melting point; refer to official data for details) | °C |
| Mold Temperature | 10‑60°C (reasonable range based on heat‑distortion temperature; refer to official data for details) | °C |
Note: All information above is for reference only!
