| About |
|---|
| High elasticity with good elastic recovery High melt strength Good impact strength Good flow characteristics ENGAGE™ HM 7280 Polyolefin Elastomer Resin is produced via gas phase polymerization from Dow. This is an ethylene-butene copolymer exhibiting high flexibility and elasticity. It can be utilized in monolayer and coextruded films and in blends with other polyolefins to enhance melt strength and toughness of the structure.&& |
| Product Description | |
|---|---|
| Supplier | DOW |
| Generic | Polyolefin Elastomer |
| Material Status | Commercial: Active |
| Availabilitys | North America,Latin America,Asia Pacific,Europe |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 0.884 | g/cm³ | ASTM D792 |
| Melt Flow Rate | |||
| 190℃，2.16kg | < 0.50 | g/10min | ASTM D1238 |
| Mooney viscosity | |||
| ML 1+4，150℃ | 42 | MU | ASTM D1646 |
| Summary of crystallinity | |||
| % | 24.7 | Internal Method | |
| elastic body | Nominal value | Unit | Test method |
|---|---|---|---|
| tensile strength | |||
| Fracture, molded | 5.10 | MPa | ASTM D638 |
| Fracture, 1 mm | 21.7 | MPa | ASTM D412 |
| Tensile strain | |||
| Fracture, molded | 310 | % | ASTM D638 |
| Fracture, 1 mm | 640 | % | ASTM D412 |
| tear strength | ASTM D624 | ||
| — | 46.9 | kN/m | ASTM D624 |
| 1.00 mm | 55.0 | kN/m | ASTM D624 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Glass transition temperature | -43.0 | ℃ | Internal Method |
| Vicat Softening Temp | 60.0 | ℃ | ASTM D1525 |
| Melting temperature | |||
| DSC | 116 | ℃ | Internal Method |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | ASTM D2240 | ||
| 1.00 mm, extruded | 81 | ASTM D2240 | |
| Shaw A, molded | 84 | ASTM D2240 | |
| Shaw’s D, molded | 29 | ASTM D2240 | |
| Tensile modulus | |||
| 100% cut, molded | 4.50 | MPa | ASTM D638 |
| Bending modulus | ASTM D790 | ||
| 1% cut, molded | 28.2 | MPa | ASTM D790 |
| 2% cut, molded | 25.3 | MPa | ASTM D790 |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 20 in/min |
| 3. Die C |
| 4. Extruded sheet at 40 mil (1.0 mm) thickness with no significant difference between machine and cross-directional properties. |
| 5. Compression Molded |
| 6. 10°C/min Dow Method, complete protocols and results available upon request. |
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