| About |
|---|
| Elastollan® 688AN is specifically formulated for extruded profile, sheet and film applications. It exhibits excellent abrasion resistance, toughness, high transparency, low gel, and low yellowness index. It has excellent damping characteristics and outstanding resistance to tear propagation. Elastollan® 688AN conforms to the FDA food contact regulations as described in book 21, section 177.2600 and 177.1680 for both wet and dry food contact applications respectively. Elastollan® 688AN is supplied uncolored in diced or pelletized form.&& |
| Product Description | |
|---|---|
| Supplier | BASF |
| Generic | TPU-酯 |
| Material Status | Commercial: Active |
| Features | Good flexibility,Low speed solidification point,Food contact compliance,Good tear strength,Good wear resistance |
| Availabilitys | North America |
| Process Methods | Extrusion |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.21 | g/cm³ | ASTM D792 |
| Melt Flow Rate | |||
| 190℃，21.6kg | 15 to 30 | g/10min | ASTM D1238 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shaw’s A | 87 | ASTM D2240 | |
| Tensile modulus | |||
| injection molding | 23.4 | MPa | ASTM D412 |
| Bending modulus | |||
| injection molding | 39.3 | MPa | ASTM D790 |
| Taber abraser | 25.0 | mg | ASTM D1044 |
| Abrasion（DIN） | 25 | mm³ | DIN 53516 |
| elastic body | Nominal value | Unit | Test method |
|---|---|---|---|
| tensile strength | 40.0 | MPa | ASTM D412 |
| 300% strain | 24.8 | MPa | ASTM D412 |
| 100% strain | 8.96 | MPa | ASTM D412 |
| Tensile strain | |||
| fracture | 520 | % | ASTM D412 |
| tear strength | 124 | kN/m | ASTM D624 |
| Compression deformation | ASTM D395B | ||
| 23℃，22 hr | 25 | % | ASTM D395B |
| 70℃，22 hr | 45 | % | ASTM D395B |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Glass transition temperature | -27.0 | ℃ | Internal Method |
| Vicat Softening Temp | 80.0 | ℃ | ASTM D1525 |
| Softening temperature | |||
| DMA | 88 | ℃ | Internal Method |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Drying temperature | 100 to 110 | °C | |
| Drying time | 2.0 to 3.0 | hr | |
| Recommended maximum moisture content | 0.030 | % | |
| Barrel rear temperature | 190 to 220 | °C | |
| Barrel middle temperature | 190 to 220 | °C | |
| Barrel front temperature | 190 to 220 | °C | |
| Nozzle temperature | 210 to 225 | °C | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Die C |
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