由水友性同聚合物稳定油在水中的乳液
S Karishma1, Kirti Rajvanshi1, Hemant Kumar1
1Polymer Engineering and Colloid Science Lab, Department of Chemical Engineering, Indian Institute of Technology Madras, Chennai 600036, India.
Langmuir : the ACS journal of surfaces and colloids
|September 12, 2023
概括
水友性同聚合物有效地稳定了油在水中的乳液,挑战了复杂的共聚合物结构的需求. 高分子量和足够的度是长期乳液稳定性的关键.
科学领域:
- 合体和表面科学科学
- 聚合物科学 聚合物科学
- 材料科学 材料科学 材料科学
背景情况:
- 聚合物乳化剂通常具有双锁和三锁共聚合物架构.
- 这些结构包含水友和疏水域来稳定乳液.
- 为了各种应用,正在寻找替代稳定方法.
研究的目的:
- 调查简单的水友性同聚合物的有效性,作为油在水乳液的稳定剂.
- 为了确定聚合物分子量和度对乳液稳定性的影响.
- 阐明水友性同聚合物的稳定机制.
主要方法:
- 使用聚乙烯氧化物和聚乙烯 (聚乙烯) 作为模型水友性同聚合物.
- 采用n-decane和n-hexane作为模型非极性相.
- 进行了乳液体积的动力测量,显微镜分析,界面张力和扩展性风湿学.
主要成果:
- 高分子量水友性同聚合物显示,在24小时以上的时间内,有效地稳定了油水乳液.
- 在超出特定度值时观察到稳定性.
- 影响稳定性的关键因素包括聚合物分子量和度.
结论:
- 简单的水友性同聚合物可以作为有效的稳定剂,油在水乳液.
- 稳定机制包括浮力驱动的化,薄膜排水和界面扩展弹性.
- 这一发现表明,有可能使用环保生物聚合物作为合成乳化剂的替代品.
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