皮克林乳液
润湿
材料科学
化学工程
乳状液
硅烷化
粒子(生态学)
聚合
纳米技术
模板
纳米颗粒
聚合物
复合材料
地质学
海洋学
工程类
作者
Nicholas Starvaggi,Bobbie Bradford,Crawford Taylor,Emily Pentzer
出处
期刊:Soft Matter
[The Royal Society of Chemistry]
日期:2023-01-01
卷期号:19 (39): 7635-7643
被引量:1
摘要
Pickering emulsions play a significant role in generating advanced materials and have widespread application in personal care products, consumer goods, crude oil refining, energy management, etc. Herein, we report a class of wettability tuned silica-based Pickering emulsifiers which stabilize a diverse range of fluid-fluid interfaces: oil/water, ionic liquid/oil, and oil/oil, and their use to prepare microcapsules via interfacial polymerization. To alter particle wettability, colloidal suspensions of SiO2 particles (22 nm) were modified via silanization with reagents of varied hydrophilicity/hydrophobicity, giving particles that could be dispersed in solvents that became the continuous phase of the emulsions. To test the viability of this system as templates for the fabrication of composite materials, the different particle-stabilized emulsions were coupled with interfacial polymerization, leading to microcapsules with polyurea/silica shells. These results demonstrate that a single particle feedstock can be coupled with fundamental chemical transformation to access a versatile toolkit for the stabilization of diverse fluid interfaces and serve as a template for the preparation of hybrid architectures.
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