| Study on Properties of Calcium Silicate Filled Reclaimed NR |
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| DOI： |
| Key Words: NR reclaim；calcium silicate；carbon black；reinforcement effect |
| Author Name | Affiliation | | DENG Jianqing | Beijing University of Chemical Technology | | LU Xiaozhong | Beijing Institute of Petrochemical Technology | | LIU Xuemin | Beijing Research and Design Institute of Rubber Industry | | JI Changqing | Beijing Institute of Petrochemical Technology | | SUN Xiaomin | Beijing Institute of Petrochemical Technology |
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| Abstract: |
| The effect of calcium silicate/carbon black blend ratio on the properties of NR reclaim was investigated.The results showed that，as calcium silicate/carbon black blend ratio increasing，the scorch time of NR reclaim was gradually shortened，indicating reduced processing safety，t90 was gradually shortened，the vulcanization rate gradually increased，the density，Shore A hardness and tensile set at break changed a little，and the tensile strength and elongation at break increased significantly.The study showed that calcium silicate had a good reinforcement effect on NR reclaim. |
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