一些基于的合成油的合成和生物降解测试
Reham I El Shazly1, Huda S El-Sheshtawy2, Nehal S Ahmed3
1Department of Petroleum Applications, Egyptian Petroleum Research Institute, Nasr City, 11727, Cairo, Egypt. rehamshazly@epri.sci.eg.
Scientific reports
|February 10, 2024
概括
这项研究合成了具有高生物降解性和热稳定性的新型合成基油. 新的滑剂具有出色的粘度特性和牛顿式行为,使其适合各种工业应用.
科学领域:
- 滑剂化学 滑剂化学
- 有机合成 有机合成
- 材料科学是一种材料科学.
背景情况:
- 与传统基材相比,合成精油提供了更好的清洁,滑和极性.
- 合成基油如聚烯糖醇 (PAG) 和聚烯 (PAO) 的生物降解性有限,特别是在较高粘度等级的基油中.
研究的目的:
- 合成具有增强生物降解性和热稳定性的新型合成基油.
- 研究不同糖醇和脂肪酸对油性质的影响.
- 为了评估合成的性能特征,用于潜在的滑剂应用.
主要方法:
- 用各种糖醇 (乙烯糖醇,烯糖醇,丁烯糖醇,聚乙烯糖醇) 进行瓦莱里克酸的化 400).
- 用乙烯糖醇对酸,酸或八酸进行化.
- 使用富里埃变换红外 (FT-IR) 和质子核磁共振 (1H-NMR) 光谱学进行表征.
- 通过热重力测量分析 (TGA) 评估热稳定性.
- 使用细菌分离物的生物降解性测试 (B1,B2).
- 风病行为和粘度指数 (VI) 测量.
- 倒点的确定. 倒点的确定.
主要成果:
- 合成的高反应产率 (85-94%) 得到了实现.
- 光谱分析证实了的化学成分.
- 体表现出显著的热稳定性.
- 生物降解百分比在3天后从34%到84%不等.
- 合成的体表现出牛顿式的质行为.
- 以乙烯糖醇为基础的产物显示出最高的粘度指数 (VI),为179.
- 注点一般低于-32°C,而来自酸和酸的 Ester则略有增加.
结论:
- 合成的基油具有良好的热稳定性和生物降解性.
- 以乙烯糖醇为基础的 Ester 提供优越的粘度特性.
- 该研究成功开发了具有可调节性质的有希望的合成脂滑剂.
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