| Preparation of Waste Tire Pyrolytic Carbon Black/Carbon Nanotube Hybrid Particles by Supercritical Fluid Technology and Their Properties |
| Received:February 03, 2021 Revised:February 20, 2021 |
| DOI：10.12136/j.issn.1000-890X.2022.09.0667 |
| Key Words: waste tires pyrolysis carbon black；carbon nanotube；hybrid particle；supercritical fluid；NR； reinforcing effect |
| Author Name | Affiliation | E-mail | | YIN Hao* | Qingdao University of Science and Technology | 1007295933@qq.com | | ZHAO Haotian | Qingdao University of Science and Technology | | | LIN Zhengwei | Qingdao University of Science and Technology | | | CHEN Yanlu | Qingdao University of Science and Technology | | | SHI Xinyan | Qingdao University of Science and Technology | | | DUAN Yongxin | Qingdao University of Science and Technology | |
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| Abstract: |
| In this work，carbon nanotube（CNT） were dispersed in supercritical carbon dioxide fluid and
then coated on the surface of waste tire pyrolysis carbon black（CBp） to prepare CBp/CNT hybrid particles，
and the reinforcing effect of the hybrid particles on natural rubber（NR） was studied and compared with CBp
（supercritical fluid dispersion treatment）. The results showed that compared with CBp compound，CBp/
CNT hybrid particle compound had good vulcanization characteristics，the hardness，tensile stress and tear
strength of the vulcanizate increased，and the compression temperature rise did not change much. With the
prolongation of the supercritical fluid treatment time，the filler-filler interaction of CBp/CNT hybrid particle
compound was weakened，and the tensile strength of the vulcanizate could reach a level comparable to that of
the CBp vulcanizate. |
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