构建具有多个响应点的pH可切换表面活性剂,以快速释放乳液阻力减速器
Qiao Li1, Yong Zhang1, Xiaoxia Zheng1
1College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, P. R. China.
Langmuir : the ACS journal of surfaces and colloids
|November 4, 2025
概括
一种具有多个反应点的新型表面活性剂提高了乳液阻力减速器的稳定性和释放效率. 这种可以切换pH值的阻力减速器提供了更好的性能和更宽的释放窗口.
科学领域:
- 材料科学 材料科学 材料科学
- 表面化学 表面化学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 由于表面活性剂结构简单,传统的可切换乳液阻力减速器面临储存稳定性和释放效率方面的挑战.
- 开发具有双尾和多个反应点的表面活性剂是克服这些局限性的关键策略.
研究的目的:
- 合成和表征一种新型表面活性剂 (OLA-BPB) 具有多个响应部位,用于改进的乳液阻力减速剂.
- 评估开发的阻力减速器的pH可切换性质和性能.
主要方法:
- 通过化和希夫基反应合成OLA-BPB表面活性剂.
- 使用逆乳液聚合制备乳液阻力减速剂.
- 在不同的pH条件下评估表面活性,储存稳定性和阻抗性能.
主要成果:
- OLA-BPB表面活性剂由于三级胺基和胺基键而表现出pH敏感的表面活性.
- 由此产生的乳液阻抗减速器在25°C的温度下显示出良好的存储稳定性,在pH范围2到6的范围内具有pH可切换的释放.
- 在pH 3下,在20秒内实现了完全释放,在0.05%重量度下,阻力降低率为68.48%.
结论:
- 合成的OLA-BPB表面活性剂有效地提高了乳液阻抗降低剂的稳定性和释放效率.
- 减阻器的pH可切换性为减阻提供了一种可控制和有效的减阻方法.
- 这项工作为开发先进的阻力降低技术提供了一个有希望的替代方案.
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