高效的无灰和非腐蚀性二聚二二二醇作为纳夫基油中多功能滑剂添加剂
Chiu Ling Ong1, Yew Chong Lai2, Thorsten Heidelberg3
1Nanotechnology and Catalysis Research Centre, Level 3, Block A, Institute for Advanced Studies, University of Malaya 50603 Kuala Lumpur Malaysia jcjuan@um.edu.my.
RSC advances
|October 23, 2023
概括
与传统添加剂相比,新的富含硫的二聚二二二衍生物 bis-2,5-benzylsulfanyl-[1,3,4]thiadiazole (BBST) 和 bis-2,5-octylsulfanyl-[1,3,4]thiadiazole (BOST) 在金属加工流体中提供了更好的极端压力和抗磨损性能.
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.
- 滑工程 滑工程
背景情况:
- 传统的金属加工流体添加剂,如MCCP和ZDDP,由于生态毒性而面临限制.
- 需要环保和有效的极压 (EP) 和抗磨损 (AW) 添加剂.
研究的目的:
- 合成和评估新型,无灰色的二聚二二二醇衍生物作为传统EP/AW添加剂的潜在替代品.
- 为了比较这些新化合物的tribological性能与现有的添加剂和基油.
主要方法:
- 合成 bis-2,5-硫法尼尔-[1,3,4]提亚迪亚佐尔 (BBST) 和 bis-2,5-octylsulfanyl-[1,3,4]提亚迪亚佐尔 (BOST) 的方法.
- 使用标准的 Tribological 测试对极端压力 (EP) 和抗磨损 (AW) 性能进行评估.
- 使用X射线光电子光谱 (XPS) 和分子静电电位图 (MEPS) 的表面分析.
主要成果:
- BBST显示接负载为3089N,AW值为5mm2,显著优于纳基油 (NBO).
- 在接负载和AW特性方面,BBST表现出比BOST,MCCP和ZDDP更好的性能.
- XPS和MEPS分析表明,BBST的性能是由于硫,和π电子与金属表面的相互作用,形成保护性 tribofilms.
结论:
- BBST是一种高效,无灰,无腐蚀的添加剂,用于增强金属加工流体的三元学性质.
- 这项研究强调了二聚二二二醇衍生物在滑应用中作为环保替代品的潜力.
- 形成特定的化学键 (FeS,Fe2O3,FeN) 对于BBST提供的优质 tribofilm 形成和磨损保护至关重要.
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