含的离子有机基滑油添加剂,用于增强PAO6基油的tribological性能
Fengfei Chen1,2, Hualin Lin1, Yuan Xue1
1School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai 201418, China.
Langmuir : the ACS journal of surfaces and colloids
|December 3, 2025
概括
一种含有的新型有机化合物 ([HBMo][DEHP]) 作为一种优质的,无硫的滑剂添加剂. 它在低度和极端条件下提供出色的 Tribological 性能,减少摩擦和磨损.
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.
- 绿色化学 绿色化学
背景情况:
- 环保,无硫的滑剂添加剂对于可持续的工业应用至关重要.
- 传统的滑剂添加剂通常含有硫,引发了环境问题.
- 开发高性能,环保的替代品是一个关键的研究目标.
研究的目的:
- 合成和评估一种新的含的离子有机化合物[HBMo][DEHP],作为滑剂添加剂.
- 为了研究[HBMo][DEHP]在聚烯烯 (PAO6) 基油中的 Tribological 性能.
- 通过分子模拟和实验数据阐明[HBMo][DEHP]的滑机制.
主要方法:
- 合成含的离子有机化合物 ([HBMo][DEHP]).
- 在各种负载和温度条件下,对PAO6基油中的[HBMo][DEHP]进行 Tribological 测试.
- 分子模拟分析添加剂吸附和与金属表面的相互作用.
主要成果:
- 添加剂 [HBMo][DEHP] 显示出优异的 Tribological 特性,显著减少摩擦和磨损.
- 在显著低度 (0.1重量%) 达到最佳性能,比传统添加剂低10倍.
- 即使在高负荷 (490N) 和高温度 (175°C) 下,也观察到有效的滑.
结论:
- 合成的[HBMo][DEHP]是一种高效,低度,无硫的滑剂添加剂.
- 一个双薄膜滑机制,涉及吸附和 tribochemical 反应膜,解释了添加剂的性能.
- [HBMo][DEHP]为苛刻的滑应用提供了一个有希望的环保解决方案.
相关概念视频
Phosphodiester Linkages
109.8K
Overview
Phosphodiester bond forms when a phosphoric acid molecule (H3PO4) links with two hydroxyl groups (–OH) of two other molecules, forming two ester bonds. Two water molecules are released in this process. The phosphodiester bond is commonly found in nucleic acids (DNA and RNA) and plays a critical role in their structure and function.
Phosphodiester Bonds Link Nucleotides Together
DNA and RNA are polynucleotides or long chains of nucleotides that are linked together. A nucleotide is...
Phosphodiester bond forms when a phosphoric acid molecule (H3PO4) links with two hydroxyl groups (–OH) of two other molecules, forming two ester bonds. Two water molecules are released in this process. The phosphodiester bond is commonly found in nucleic acids (DNA and RNA) and plays a critical role in their structure and function.
Phosphodiester Bonds Link Nucleotides Together
DNA and RNA are polynucleotides or long chains of nucleotides that are linked together. A nucleotide is...
109.8K
Properties of Organometallic Compounds
1.6K
Organometallic compounds are compounds that contain a carbon–metal bond. Carbon belongs to an organyl group like alkyl, aryl, allyl, or benzyl groups. The metal can be from Group I or Group II of the periodic table, a transition metal, or a semimetal.
1.6K
Phosphorylation
53.5K
The addition or removal of phosphate groups from proteins is the most common chemical modification that regulates cellular processes. These modifications can affect the structure, activity, stability, and localization of proteins within cells as well as their interactions with other proteins.
During phosphorylation, protein kinases transfer the terminal phosphate group of ATP to specific amino acid side chains of substrate proteins. Serine, threonine, and tyrosine are the most commonly...
During phosphorylation, protein kinases transfer the terminal phosphate group of ATP to specific amino acid side chains of substrate proteins. Serine, threonine, and tyrosine are the most commonly...
53.5K
Phosphoinositides and PIPs
10.0K
Phosphoinositides are a group of phospholipids containing a glycerol backbone with two fatty acid chains and a phosphate attached to a myoinositol sugar ring. The inositol head group extends into the cytoplasm, where it is modified by adding phosphate groups to form phosphatidylinositol phosphates or PIPs.
Different phosphoinositides are synthesized and recruited on the cytosolic face of the plasma membrane. The localization of specific phosphoinositides concentrated in separate membrane...
Different phosphoinositides are synthesized and recruited on the cytosolic face of the plasma membrane. The localization of specific phosphoinositides concentrated in separate membrane...
10.0K
Design Example: Deciding Thickness of Lubricating Fluid in a Shaft
318
Effective lubrication between a rotating shaft and its bearing housing is essential in rotating machinery to minimize friction, wear, and energy loss. With carefully controlled thickness and viscosity, the lubricant layer prevents metal-to-metal contact, ensuring smooth operation.
To calculate the required thickness of the lubricant layer, the tangential velocity at the shaft's surface must first be determined. This velocity is calculated by converting the rotational speed to angular velocity...
To calculate the required thickness of the lubricant layer, the tangential velocity at the shaft's surface must first be determined. This velocity is calculated by converting the rotational speed to angular velocity...
318


