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Thermoplastic elastomer SIS-8291
Chemical Name
Thermoplastic SIS elastomer， Styrene isoprene block polymer.
PhysicalProperties
SIS-8291 is a clear, linear triblock copolymer based on styrene and isoprene, with apolystyrene content of 29%.SIS-8291 is widely used in compound formulations and as a modifierof thermoplastics .It may also find use in formulating adhesives, sealants, coatings and modifiedbitumens.
Thermoplastic elastomer sis -8291 Specification:
| Properties | Target Values(Spec Limits) |
| Polystyrene content（Wt%） | 27-31 |
| Melt Flow rate（g/10min） | 8.0-14.0 |
| Tensile Strangth（Mpa） | ≥11 |
| Elongnation at break(%) | ≥750 |
| Solution Viscosity(MaP.s) | 200-800 |
| Volatile Matter（Wt%） | ≤0.70 |
| Ash（Wt%） | ≤0.2 |
Typical Value:
| Properties | Target Values(Spec Limits) |
| Mn g/mol | 79000 |
| Pd | 1.02 |
Thermoplastic elastomer sis -8291 application
1.Adhesives
2.modifier of thermoplastic
