Scholarlink

<p>Nitrile butadiene rubber (NBR) serves as a water-lubricated tail bearing material for ships owing to its vibrational absorption and impact resistance properties; however, its applications are limited because of rapid wear under poor lubrication. To overcome this issue, graphene (Gra) was used to modify the NBR materials. Multifunctional friction and wear tests, as well as molecular dynamics simulations, were performed to assess the influence of Gra on the tribological behavior of NBR. Based on the experimental and theoretical results, the mechanism through which Gra enhanced the tribological properties of NBR was explored at the molecular scale. The results revealed that Gra can form a lubricating film between friction pairs when lubrication is poor, thereby reducing the friction coefficient and improving the wear resistance of NBR. During friction, the modification of NBR with Gra increased the van der Waals energy between the NBR molecular chains. This increased the rigidity of the NBR molecular chains, reduced the concentration of the NBR molecular chains around copper atomic rods, weakened the interface binding energy between NBR and the friction components, and ultimately improved the tribological properties of NBR.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Mechanism Governing the Enhanced Tribological Properties of Graphene-Modified Nitrile Butadiene Rubber

  • 期刊论文

  • 发表日期：

    2026年3月24日

查看全文
  • Xueshen Liu,
  • Dong Guo,
  • Yuanpeng Liu,
  • Zhenghe Wang,
  • Shaopeng Xing,
  • Jian Huang

摘要

Nitrile butadiene rubber (NBR) serves as a water-lubricated tail bearing material for ships owing to its vibrational absorption and impact resistance properties; however, its applications are limited because of rapid wear under poor lubrication. To overcome this issue, graphene (Gra) was used to modify the NBR materials. Multifunctional friction and wear tests, as well as molecular dynamics simulations, were performed to assess the influence of Gra on the tribological behavior of NBR. Based on the experimental and theoretical results, the mechanism through which Gra enhanced the tribological properties of NBR was explored at the molecular scale. The results revealed that Gra can form a lubricating film between friction pairs when lubrication is poor, thereby reducing the friction coefficient and improving the wear resistance of NBR. During friction, the modification of NBR with Gra increased the van der Waals energy between the NBR molecular chains. This increased the rigidity of the NBR molecular chains, reduced the concentration of the NBR molecular chains around copper atomic rods, weakened the interface binding energy between NBR and the friction components, and ultimately improved the tribological properties of NBR.