| About |
|---|
| Kraton D1157 A is a clear, linear block copolymer based on styrene and butadiene with bound styrene of 29.5% mass. It is supplied from Europe in the physical form(s) identified below in the grade nomenclature: Kraton D1157 AS – supplied as porous pellets dusted with amorphous silica Kraton D1157 AT – supplied as porous pellets dusted with talcum Kraton D1157 ATM – supplied as powder dusted with talcum for the North American market Kraton D1157 A is used as a modifier of bitumen or thermoplastics and in compound formulations. It may also find use as an ingredient in formulating adhesives, sealants and coatings.&& |
| Product Description | |
|---|---|
| Generic | SBS |
| Material Status | Commercial: Active |
| Features | Block Copolymer,Inoxidizability,Linear polymer structure |
| Availabilitys | Africa & Middle East ,North America,Latin America,Asia Pacific,Europe |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 0.938 | g/cm³ | ISO 2781 |
| Apparent density | 0.40 | g/cm³ | ASTM D1895B |
| Melt Flow Rate | |||
| 200℃，5.0kg | 3.5 to 6.5 | g/10min | ISO 1133 |
| Solution viscosity | 1300 to 1900 | mPa·s | Internal Method |
| Polystyrene content | 29 to 31 | % | Internal Method |
| Total Extractables | < 1.0 | % | Internal Method |
| Ash Content | |||
| AS，AT | 0.15 to 0.40 | % | ISO 247 |
| ATM | 4.0 to 6.0 | % | Internal Method |
| < 0.30 | % | Internal Method | |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Shore hardness | |||
| Shore A, 15 seconds, molded | 70 | ASTM D2240 |
| elastic body | Nominal value | Unit | Test method |
|---|---|---|---|
| tensile strength | |||
| yield | 28.0 | MPa | ISO 37 |
| 300% strain | 2.90 | MPa | ISO 37 |
| Tensile strain | |||
| fracture | 800 | % | ISO 37 |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 25%w toluene solution at 25°C |
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