皮克林或非皮克林的困境:一个复杂的系统的阳离子素合的油水乳液
Saba Khodavandegar1, Ulrica Edlund2,3, Peter Rättö4
1Green Process Research Centre and Chemical Engineering Department, Lakehead University, Thunder Bay, Canada.
ChemSusChem
|February 8, 2026
概括
修改后的素衍生物表现出不同的乳液性能. 不同的修改导致不同的稳定机制,影响不同pH值的乳液稳定性和粘度.
科学领域:
- 可持续的化学可持续的化学
- 合体和表面科学科学
- 材料科学 是一种材料科学.
背景情况:
- (L) 衍生物作为可持续的乳化剂正在被探索.
- 了解石油水系统中的素衍生物相互作用至关重要.
- 素修饰策略可能会影响乳化性能.
研究的目的:
- 测试不同的素修饰策略是否产生不同的乳化性能.
- 为了研究泽塔电位和粒子大小在乳液稳定性中的作用.
- 为了比较不同pH值的硫甲基化红素 (SL) 和碳甲基化红素 (CL) 的稳定机制.
主要方法:
- 从软木 kraft lignin中产生硫乙化素 (SL) 和碳酸乙化素 (CL).
- 使用SL和CL作为乳化剂制造大豆油在水中的乳液.
- 在性和酸性pH下分析乳液稳定性,泽塔潜力,颗粒大小和粘度.
主要成果:
- 更多的负泽塔电位和较小的油颗粒与由于静电排斥而在性pH下增加的乳液稳定性相关.
- 在性条件下观察到较低的乳液粘度,这是由于分散的滴滴.
- SL和CL在酸性pH下形成皮克林乳液,但它们的寿命较短,表明长期稳定性缺乏固态阻碍.
结论:
- 素的修饰显著影响了乳化性能.
- 在性pH下,静电排斥是稳定的乳液的关键.
- 单独的固体阻碍在酸性条件下对长期乳液稳定性是不够的,突出了依赖pH值的稳定机制.
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