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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