| Properties of CNTs/NR Composites by Electrophoretic Deposition Masterbatch Method |
| Received:November 17, 2021 Revised:November 17, 2021 |
| DOI：10.12136/j.issn.1000-890X.2023.05.0323 |
| Key Words: CNTs；NR；composite；electrophoretic deposition；thermal stability；rolling resistance |
| Author Name | Affiliation | E-mail | | XU Minghui | Qingdao University of Science and Technology | 1395780028@qq.com | | BIAN Huiguang | Qingdao University of Science and Technology | | | QU Shengqi | Qingdao University of Science and Technology | | | YAN Lizhi | Qingdao University of Science and Technology | | | HAO Yingjie | Qingdao University of Science and Technology | | | WANG Chuansheng* | Qingdao University of Science and Technology | 1350855249@qq.com |
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| Abstract: |
| 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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