| About |
|---|
| Description: GM7746C is a High Density Polyethylene specially developed for the manufacturing of blow molding fuel tanks. It has high molar mass and excellent mechanical properties. Besides, it shows excellent tenacity, high resistance to stress cracking, and outstanding impact resistance. Application: Mono and multilayer fuel tanks for automobiles; small volume automotive reservoirs; sheet extrusion for pickup rear protectors.&& |
| Product Description | |
|---|---|
| Supplier | Braskem |
| Generic | HDPE |
| Material Status | Commercial: Active |
| Features | High impact resistance,High molecular weight,High ESCR |
| Availabilitys | Latin America,Europe |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 0.944 | g/cm³ | ASTM D792 |
| Melt Flow Rate | |||
| 190℃，21.6kg | 4.5 | g/10min | ASTM D1238 |
| ESCR(Environmental Stress Cracking Resistance) | |||
| 50 ℃, 2.00 mm, 100% non-ionic surfactant, molded, F50 | > 1000 | hr | ASTM D1693 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | |||
| Compression Molding | 760 | J/m | ASTM D256 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 0.45 MPa, unannealed, molded | 70.0 | ℃ | ASTM D648 |
| Vicat Softening Temp | 126 | ℃ | ASTM D1525 1 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shaw’s D, molded | 62 | ASTM D2240 | |
| tensile strength | ASTM D638 | ||
| Yield, molding | 23.0 | MPa | |
| Fracture, molded | 42.0 | MPa | |
| Tensile strain | ASTM D638 | ||
| Yield, molding | 13 | % | |
| Fracture, molded | 880 | % | |
| Bending modulus | |||
| 1% cut, molded | 890 | MPa | ASTM D790 |
| Notes |
|---|
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