| Study on Properties of NR Reinforced by Modified Graphite Gangue Powder |
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| DOI： |
| Key Words: graphite gangue powder；modification；NR；reinforcement |
| Author Name | Affiliation | | CHEN Jing | Zhanjiang Normal University | | XU Kui | Chinese Academy of Tropical Agricultural Sciences | | YANG Rimin | Zhanjiang Normal University | | PAN Kairong | Zhanjiang Normal University | | PENG Zheng | Chinese Academy of Tropical Agricultural Sciences |
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| Abstract: |
| The properties of NR reinforced by the modified graphite gangue powder were studied， and the optimum modification conditions of the graphite gangue powder were obtained by orthogonal experiment considering three main influencing factors：calcination temperature，calcination time and addition level of coupling agent.The results showed that，compared with those of carbonblack reinforced NR，the graphite gangue powder reinforced NR possessed similar curing characteristics and slightly longer scorch time.The graphite gangue powder possessed obvious reinforcemen ton NR.It was indicated from the SPSS software analysis that，in descending order，the degree of significance of those three factors on the reinforcing properties was listed as：addition level of coupling agent，calcination temperature and calcination time.The optimum modification condition was as follows：calcination temperature at 800 ℃，calcination time of 1.5 h，and addition level of coupling agent（weight percent in graphite gangue powder） at 2.2%. |
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