| Study on Application of Carbon Black from Natural Gas Based Acetylene Production in NR |
| Received:July 07, 2019 Revised:July 07, 2019 |
| DOI：10.12136/j.issn.1000-890X.2020.01.0045 |
| Key Words: NR；natural gas based acetylene；by-product carbon black；filter-pressing；physical property； dispersion；dynamic mechanical property |
| Author Name | Affiliation | E-mail | | YU Yao | Qingdao University of Science and Technology | 706657836@qq.com | | ZHANG Junyi | Qingdao University of Science and Technology | | | CHEN Jikai | Qingdao Beihai Sealing Technology Co.，Ltd | | | WANG Hongzhen* | Qingdao University of Science and Technology | 465198208@qq.com | | XIN Zhenxiang | Qingdao University of Science and Technology | |
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| Abstract: |
| The by-product carbon black from natural gas based acetylene production was prepared by two methods and the properties were characterized. The effects of the obtained carbon black on the properties of natural rubber （NR） compound were investigated and compared with carbon black N660. The results showed that the specific surface area and structure of the carbon black without pressure filtration process were larger than those of the carbon black prepared using pressure filtration，and they were still smaller than those of carbon black N660. The Mooney viscosity of the compounds with carbon black N660 and pressure filtrated by-product carbon black were similar and higher than that of the compound with pressure filtrated by-product carbon black. The Shore A hardness，modulus at 100% and 300% elongation，tensile strength and tear strength of the vulcanizate with carbon black N660 were the highest，and those physical properties of the vulcanizate with the carbon black prepared using pressure filtration were the lowest. Moreover，the vulcanizate with pressure filtered carbon black had the worst wear resistance and the highest compression fatigue heat buildup.Both types of by-product carbon black showed certain reinforcing effect on NR compound，but there were still some gaps compared with carbon black N660. The dispersion of carbon black and dynamic mechanical properties of the compound filled by the carbon black without pressure filtration were better than those of the compound filled by the carbon black using pressure filtration. |
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