Citation
Gregory M. J., . and Alias bin Othman, . Stiffening effect of carbon black: Its interpretation by a modified Guth-Gold equation. pp. 7-20. ISSN 0127-7065
Abstract
Increasing the volume fraction of carbon black in natural rubber vulcanisates results in a nonlinear increase in the modulus. This stiffening effect is usually explained in terms of the Guth-Gold type of equation which relates the modulus to the shape factor occluded volume and the hydrodynamic effects of the filler. However work with natural rubber crosslinked using different vulcanising systems shows that the Guth-Gold type of equation which has hitherto been used is inadequate for predicting the modulus of filled rubbers. The discrepancy between different vulcanising systems could be attributed to the effect of carbon black on crosslinking efficiency. A modification of the equation which takes this into account has been found to give a better description of the experimental results.
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Abstract
Increasing the volume fraction of carbon black in natural rubber vulcanisates results in a nonlinear increase in the modulus. This stiffening effect is usually explained in terms of the Guth-Gold type of equation which relates the modulus to the shape factor occluded volume and the hydrodynamic effects of the filler. However work with natural rubber crosslinked using different vulcanising systems shows that the Guth-Gold type of equation which has hitherto been used is inadequate for predicting the modulus of filled rubbers. The discrepancy between different vulcanising systems could be attributed to the effect of carbon black on crosslinking efficiency. A modification of the equation which takes this into account has been found to give a better description of the experimental results.
Additional Metadata
| Item Type: | Article |
|---|---|
| AGROVOC Term: | Natural rubber |
| AGROVOC Term: | Carbon black |
| AGROVOC Term: | Vulcanization |
| AGROVOC Term: | Measurement |
| AGROVOC Term: | Filling |
| AGROVOC Term: | Swelling |
| AGROVOC Term: | Hydrodynamics |
| AGROVOC Term: | Cross-linking |
| AGROVOC Term: | Density |
| AGROVOC Term: | Efficiency |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 24 Apr 2025 06:28 |
| URI: | http://webagris.upm.edu.my/id/eprint/23542 |
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