文章摘要
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 NameAffiliationE-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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