通过利用粒子的差异性可湿性,单步形成皮克林双乳液
Hemant Kumar1, Madhvi Tiwari2, Venkateshwar Rao Dugyala2
1Polymer Engineering and Colloid Science (PECS) Laboratory, Department of Chemical Engineering, Indian Institute of Technology Madras, Chennai, Tamil Nadu 600036, India.
Langmuir : the ACS journal of surfaces and colloids
|April 1, 2024
概括
本研究介绍了一种简单的方法来制造皮克林乳液和双乳液 (DE). 颗粒表面的修饰和油体积分数是控制乳液类型的关键,包括油在水,水在油和油在水在油结构.
科学领域:
- 合体和表面科学科学
- 材料科学 材料科学 材料科学
- 乳液技术 乳液技术
背景情况:
- 与传统乳液相比,皮克林乳液提供了更好的稳定性.
- 设计复杂的乳液结构,如双乳液 (DE) 需要精确控制接口属性.
- 颗粒的可湿性是稳定乳液的关键因素.
研究的目的:
- 开发一个模块化,单步策略,用于形成单和皮克林双乳液 (DE).
- 为了研究颗粒表面修饰和油体积分数 (φ油) 对乳液类型和结构的影响.
- 确定在Pickering DES的设计中微粒湿度差异的作用.
主要方法:
- 使用模型球形和非球形合体,通过油酸处理量身定制的可湿性.
- 使用不混合的液体 (油和水),有或没有颗粒.
- 系统地改变了油体积分数 (φ油) 从0.1到0.9.
主要成果:
- 通过调整 φ油,证明了油在水 (O/W) 和油在水 (W/O) 乳液之间的过渡.
- 展示了石油中的水中的油 (O/W/O) 皮克林DES的形成及其转换为W/O乳液,具有不同的φ油.
- 证实粒子表面修饰可以调整为O/W/O DE形成的φ油的范围.
结论:
- 不同的颗粒可湿性是设计稳定的Pickering DES的主要决定因素.
- 拟议的模块化策略具有多功能性,可以使用各种模型体系统创建DE.
- 粒子表面工程为控制复杂的乳液架构提供了一个强大的工具.
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