INDUSTRIAL LUBRICATION AND TRIBOLOGY
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2025
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IF 1.8
Lin Ma,Chenghong Hu,Zhenlin Lv,Xi He,Rui Dong,Mingjin Fan
Purpose This study aims to develop synthetic ester lubricating oil using renewable sinapic acid as raw material, to explore the structural design and selection of raw materials for green, high-performance synthetic ester oils. Design/methodology/approach A series of the sinapate ester oils were synthesized through esterification and alkoxylation reactions using renewable source sinapic acid as the raw material. The molecular structures of the oils were characterized by nuclear magnetic resonance spectroscopy, Fourier transform infrared spectroscopy spectroscopy and elemental analysis. The oils were evaluated for safety, viscosity-temperature properties, thermal and oxidative stability, as well as friction reducing and anti-wear characteristics. Findings Compared to commercial base oil tris (2-ethylhexyl) trimellitate (Phe-3Ci8), the bio-lubricant exhibits superior antifriction and anti-wear properties. Notably, the JCi8-C12 sample performed exceptionally well, reducing the friction coefficient by 11.42% and wear volume (WV) by 54.44% in steel/steel tribo-pairs. In steel/aluminum tribo-pairs, the friction coefficient decreased by 27.48%, while WV was reduced by 85.81%. Mechanistic studies reveal that the introduction of short-chain methoxy groups and stable conjugated systems (aromatic rings and double bonds) inhibit oxidation and decomposition at elevated temperatures. The p-p stacking effect enables lubricant molecules to arrange stably on friction surfaces, forming a durable lubricating film. Originality/value The utilization of biomass resources to develop green synthetic lubricating oil with excellent performance not only enhances the added value of waste from agricultural processing but also offers significant benefits in terms of both economic and environmental sustainability.
研究领域:
材料科学
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化学工程
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可再生资源利用
✓ 已验证
产品关联
DOI
高影响因子
Lubrication Science
·
2022
·Vol. 34
·期 5
·347-355
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IF 1.307
Yongliang Jin,Jian Li,Weimin Lee,Bingxue Cheng,Dan Jia,Jiesong Tu,Shengpeng Zhan,Tian Yang,Haitao Duan
This study aims to investigate a novel high-efficient antioxidant for synthetic ester oils. An ester-bridged antioxidant, phloroglucinol tris (3-[3,5-di-tert-butyl-4-hydroxyphenyl]) propionate (PTP), was successfully synthesised in high yield under relatively mild reaction conditions. Thermal stability and oxidation resistance of diisooctyl adipate (DOA) ester oil were determined and compared to the typical commercial phenol antioxidants, including its tribological properties. The results indicate that the prepared PTP antioxidant exhibits considerably higher thermal stability than commercial antioxidants, and it also improves the oxidation resistance of the synthetic ester oil more effectively. Moreover, the addition of PTP antioxidant enhanced the wear protection of DOA ester oil without deteriorating its lubricating performance. The ester-bridged antioxidant can be used as a multifunctional additive, which not only exerts excellent thermal stability and oxidation resistance, but can also act as an efficient anti-wear agent in synthetic ester oils.
研究领域:
化学工程
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
WEAR
·
2025
·
IF 6.1
Zhengquan Jiang,Jiahao Wu,Chuanwei Qiao,Laigui Yu,Jinglei Bi,Yadong Wang,Zhongzheng Yang,Shengmao Zhang,Yujuan Zhang,Weihua Li
Synthetic ester oils are crucial for high-precision equipment lubrication. Strongly polar ester oils competitively adsorb with conventional additives, hindering their effectiveness. This paper proposes the use of FeCoNi nanoparticles as the additive for diisooctyl sebacate (DIOS), a polar synthetic ester oil, attempting to overcome the issue of competitive adsorption faced by traditional additives in polar base oils. Specifically, oleylamine-modified FeCoNi (OA-FeCoNi) nanoparticles were prepared as the additive for DIOS base oil by in situ surface modification technique combined with polyol method, a one-pot liquid-phase chemical method. Friction and wear tests as well as adsorption experiments confirmed the strong adsorption capability of OA-FeCoNi nanoparticles on steel surfaces, demonstrating their effectiveness in enhancing lubrication performance. The present approach, hopefully, would shed light on the facile and well available design and fabrication of efficient anti-wear and friction-reducing agents for polar synthetic ester oils.
研究领域:
材料科学
·
机械工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
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2022
·
IF 6.633
Muhammad Fasehullah,Feipeng Wang,Sidra Jamil
Synthetic ester (SE) oil-based nanofluids (NFs) are indispensable for high voltage (HV) applications due to their impressive properties; for instance, high biodegradability, environmental friendliness, high dielectric strength and thermal stability. In this work, the solvothermal route is adopted to synthesise cadmium sulfide (CdS) nanomaterials of three different morphologies. CdS nanoparticles (NPs) possess a zinc blende (cubic) phase; however, CdS nanobelts (NBs) and CdS ultra-thin nanosheets (NSs) exhibit a wurtzite (hexagonal) phase. Thereafter, CdS nano-additives are dispersed in SE oil (MIDEL-7131) to investigate the influence of phase, morphology and bandgap of nano-additives on the AC breakdown characteristics of nanofluids. The resultant NFs exhibit significantly augmented AC breakdown strength because of expedited charge scavenging ability due to high bandgap and the formation of an electrical double layer (EDL). NPs based nanofluid (SE/NPs), NBs based nanofluid (SE/NBs), and NSs based nanofluid (SE/NSs) display their optimum doping concentration of 0.3 g/L, 0.3 g/L, and 0.2 g/L, respectively. Furthermore, the thermal stability of NFs of optimum doping concentration is investigated and compared with SE via TGA/DSC/DTG technique. The findings evince that the initial decomposition temperature is high and heat dissipation is low in NFs compared to SE, which indicates that the nanofluids are thermally stable both in air and nitrogen. Finally, the kinematic viscosity measurements of NFs of optimum doping concentration exhibit slightly lower viscosity than that of SE. Hence, CdS nano-additive is proved to be a magnificent potential aspirant which is highly efficient for insulating oil-based NFs development without any surfactant.
研究领域:
电气工程
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材料科学
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纳米技术
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高压工程
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）