| Vulcanization Behaviour of M or DM Containing Compounds |
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| DOI： |
| Key Words: cure；accelerator；activation energy |
| Author Name | Affiliation | | Xu Jian | Chemicals Factory of Jiangsu Danhua Group Corp. | | Fu Yanjie | Beijing Research and Design Institute of Rubber Industry |
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| Abstract: |
| The vulcanization behaviour of M or DM containing NR compounds was studied and their effects on the processibility and physical properties were in detail respectively investigated.The results showed that the accelerator M gave more rapid scorch rate and cure rate，but worse cure plateau than the accelerator DM.The accelerator M gave larger plastication to NR than DM at lower temperature，but DM would give larger plastication than M as the temperature increased.The fact that the activation energy of M was much lower than that of DM implied less dependence of its cure rate on temperature than that of DM.In addition，the tensile strength，modulus，tear resistance and rebound resilience of M containing compound were somewhat lower than those of DM containing compound，but the former gave better heat-aging resistance than the latter. |
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