| 电泳沉积母胶法碳纳米管/天然橡胶 复合材料的性能研究 |
| Properties of CNTs/NR Composites by Electrophoretic Deposition Masterbatch Method |
| 投稿时间：2021-11-17 修订日期：2021-11-17 |
| DOI：10.12136/j.issn.1000-890X.2023.05.0323 |
| 中文关键词: 碳纳米管 天然橡胶 母胶 电泳沉积 改性 复合材料 热稳定性 滚动阻力 |
| 英文关键词: CNTs NR composite electrophoretic deposition thermal stability rolling resistance |
| 基金项目:山东省重点研发计划项目（2019GGX102018）；青创科技计划项目（2019KJB007） |
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| 中文摘要: |
| 用氢氧化钠和过氧化氢改性碳纳米管（CNTs）得到氧化CNTs（OCNTs），再用硅烷偶联剂KH-550改性OCNTs得到氮掺杂CNTs（NCNTs）。采用电泳沉积法制备CNTs/天然橡胶（NR）、OCNTs/NR和NCNTs/NR母胶后再用机械共混法制得复合材料，其与直接采用机械共混法制得的CNTs/NR复合材料进行性能对比。结果表明：电泳沉积法能够使CNTs在NR中均匀分散，提高复合材料的热稳定性；OCNTs/NR复合材料的300%定伸应力和拉伸强度最大，热稳定性最好，但生热和滚动阻力较高；NCNTs/NR复合材料的300%定伸应力和拉伸强度较大，抗湿滑性能最好，生热和滚动阻力最低，综合性能最好。 |
| 英文摘要: |
| In this study，oxidized carbon nanotubes（OCNTs） were obtained by modification of CNTs
with sodium hydroxide and hydrogen peroxide，and nitrogen-doped CNTs（NCNTs） were prepared by further
modification of OCNTs with silane coupling agent KH-550.Then，the CNTs/natural rubber（NR），OCNTs/
NR and NCNTs/NR masterbatches were prepared by the electrophoretic deposition method，and the CNTs/
NR composites were produced by mechanical blending.The properties of these composites were compared
with those of the CNTs/NR composites prepared directly by mechanical blending.The results showed that，
CNTs were evenly dispersed in NR by electrophoretic deposition，which improved the thermal stability of
the CNTs/NR composites. Among all the studied composites，OCNTs/NR composites had the highest tensile
stress at 300% elongation and tensile strength，the best thermal stability，but possessed higher heat build-up
and rolling resistance. NCNTs/NR composites had the best overall performance：higher tensile stress at 300%
elongation and tensile strength，the best wet skid resistance，the lowest heat build-up and rolling resistance. |
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