| Effect of Dynamic Tensile Fatigue on Structure and Properties of SIBR Vulcanizate |
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| DOI： |
| Key Words: SIBR；dynamic tensile fatigue；physical property；dynamic property；microstructure |
| Author Name | Affiliation | | MENG Guang-ming | Qingdao University of Science and Technology | | ZHANG Ping | Qingdao University of Science and Technology |
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| Abstract: |
| During dynamic fatigue process，the microstructure，physical property and dynamic property of unfilled and carbon black filled SIBR vulcanizates were investigated.The results showed that，during the fatigue process，the molecular chain of SIBR cracked to free end chains that reacted with oxygen in the air and generated carbonyl group under cyclic stress；and the physical properties of unfilled and carbon black filled SIBR vulcanizates were decreased.Along with the fatigue degree increased，the crosslinking degree of carbon black filled SIBR vulcanizate was reduced，the storage modulus decreased and the loss factor at 25 ℃ increased，and the Payne effect was weakened. |
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