| Effect of Molecular Structure and Carbon Black Particles on Extrusion Rheological Behavior of Styrene Butadiene Rubber |
| Received:March 06, 2016 Revised:March 06, 2016 |
| DOI： |
| Key Words: styrene butadiene rubber; molecular structure; extrusion rheological behavior; carbon black |
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| Abstract: |
| The effect of molecular structure of SBR and the concentration of carbon black (CB) on extrusion rheological behavior was investigated by means of capillary rheometer and several other measurement characterization methods. The results showed that the apparent shear viscosity of ESBR1712 was higher than that of SSBR2564A for both of pure rubber and CB filled composites. The extrusion stabilities of ESBR1712 and SSBR2564A are close to each other. However, the extrusion stability of CB filled SSBR2564A is much better than that of CB filled ESBR1712, and its appearance quality is better than that of CB filled ESBR1712. Compared with SSBR2564A, the molecular flexibility and the CB dispersion of ESBR1712 are better, and the bound rubber content of CB filled ESBR1712 composites is higher than that of CB filled SSBR2564A composites. |
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