分析异化对普通和高油性大豆油的影响:滑行为视角
Piash Bhowmik1, Majher I Sarker2, Brajendra K Sharma2
1Department of Mechanical Engineering, University of North Dakota Grand Forks ND USA.
RSC advances
|April 11, 2025
概括
化学改性大豆油提供了更好的滑效果. 异化显著增强了普通大豆油 (RSO),在室温下减少了35%,在高温下减少了15%.
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:
- 由于矿物油耗尽和环境问题,对可持续滑剂的需求日益增加.
- 大豆油是全球丰富的可再生资源,具有生物基滑剂的潜力.
- 标准大豆油在高温应用中表现出不充分的热和氧化稳定性.
研究的目的:
- 通过异化对普通大豆油 (RSO) 和高油性大豆油 (HOSO) 进行化学修饰,以提高它们的滑性能.
- 在不同温度条件下评估改性大豆油的三元学性能.
- 为了研究化学修饰和温度所影响的磨损机制.
主要方法:
- 异化:一种化学修饰工艺,应用于RSO和HOSO以和脂肪酸双键.
- 分析技术:气相色谱-质谱 (GC-MS),核磁共振 (NMR) 和紧质谱 (CMS) 来确认结构变化.
- 部落学测试:在室温和高温下评估磨损特性.
- 高级分析:显微镜,光谱和干涉测量来检查磨损机制.
主要成果:
- 同位化成功将碳-碳双键转化为RSO和HOSO中的单键.
- 与修改后的HOSO相比,修改后的RSO表现出优越的三角学性能.
- 经过修改的RSO在室温下减少了35%的磨损量,在高温下减少了15%.
- 修改后的HOSO在两种温度下都只显示了~10%的磨损减少.
结论:
- 异化是一种有效的策略,用于增强大豆油基滑剂的 Tribological 特性.
- 常规大豆油 (RSO) 从异化中获得的益处比高油性大豆油 (HOSO) 在滑应用中更为显著.
- 化学改性大豆油,特别是RSO,显示出作为矿物油滑剂的可持续替代品的希望,特别是在苛刻的条件下.
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