合稳定的石墨烯基烯基烯功能化远程聚合物,用于减少摩擦和磨损
Fengchun Liang1, Qun He1, Shanshan Li1
1Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, State Key Laboratory of Applied Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
ACS macro letters
|September 18, 2023
概括
现在可以直接使用原始石墨作为滑剂添加剂. 这项研究使用特殊聚合物在油中分散石墨,产生稳定,低成本和环保的滑剂,具有出色的摩擦和减少磨损.
科学领域:
- 材料科学 材料科学 材料科学
- 部落学 (tribology) 是一个学科.
- 纳米技术纳米技术
背景情况:
- 石墨衍生物 (石墨烯,石墨烯氧化物) 是有效的滑剂添加剂,但具有昂贵和危险的合成途径.
- 直接使用原始石墨对于实际的 Tribological 应用是可取的,但面临着石油不兼容性问题.
研究的目的:
- 开发一种方法,在滑基油中直接分散原始石墨.
- 从原始石墨制造稳定,低成本和环保的滑油添加剂.
主要方法:
- 将原始石墨分散到基油中,通过由烯功能化的远聚合物形成的油.
- 利用 π-π 相互作用在油凝结构内将石墨化为石墨烯的现场脱皮.
- 评估由此产生的基于石墨的油脂凝的合稳定性和tribological性能.
主要成果:
- 达到了长期的石墨油脂凝的合体稳定性超过一年.
- 与基油相比,显著减少了摩擦 (高达52%) 和磨损 (高达97%).
- Tribological 性能与昂贵的剥皮石墨衍生物相提并论.
结论:
- 一种新的温和条件策略使原始石墨在滑油中的直接分散成为可能.
- 这种方法产生了高性能,成本效益和绿色滑剂,使用易于获得的原始石墨.
- 纯石墨,当适当分散时,为传统的石墨衍生品提供了一个革命性的替代品,用于滑.
相关概念视频
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01:23Design Example: Deciding Thickness of Lubricating Fluid in a Shaft
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01:27Types of Friction Problems
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