| 超临界流体制备废旧轮胎热裂解炭黑/碳纳米管杂化粒子及其性能的研究 |
| Preparation of Waste Tire Pyrolytic Carbon Black/Carbon Nanotube Hybrid Particles by Supercritical Fluid Technology and Their Properties |
| 投稿时间：2021-02-03 修订日期：2021-02-20 |
| DOI：10.12136/j.issn.1000-890X.2022.09.0667 |
| 中文关键词: 废旧轮胎热裂解炭黑 碳纳米管 杂化粒子 超临界流体 天然橡胶 补强效果 |
| 英文关键词: waste tires pyrolysis carbon black carbon nanotube hybrid particle supercritical fluid NR reinforcing effect |
| 基金项目:国家重点研发计划项目（2018YFC1902604） |
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| 中文摘要: |
| 选用超临界二氧化碳流体作为分散介质，将碳纳米管（CNT）分散包覆在废旧轮胎热裂解炭黑（CBp）表面，制备CBp/CNT杂化粒子，研究其对天然橡胶的补强效果，并与CBp（超临界流体分散处理）进行对比。结果表明：与CBp胶料相比，CBp/CNT杂化粒子胶料的硫化特性良好，硫化胶的硬度、定伸应力和撕裂强度增大，压缩生热变化不大；随着超临界处理时间的延长，CBp/CNT杂化粒子胶料的填料-填料之间的相互作用减弱，硫化胶的拉伸强度可以达到与CBp硫化胶相当的水平。 |
| 英文摘要: |
| 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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