含有水友多 (?? 乙烯) 链和疏水性二三基群的低发泡无双子表面活性剂
Zhen Wu1, Jiewen Ma1, Zhijun Zhang1,2
1School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China.
Langmuir : the ACS journal of surfaces and colloids
|October 10, 2024
概括
合成和评估了三种新的低发泡无离子双子表面活性剂,用于工业清洁和光电阻应用. 这些表面活性剂表现出优异的表面活性,湿,乳化,至关重要的是,低泡性质,优于常规选择.
科学领域:
- 材料科学 材料科学 材料科学
- 表面化学 表面化学
背景情况:
- 低发泡的非离子双子表面活性剂对于工业清洁和光电阻发展至关重要.
- 开发具有定制性质的表面活性剂对于优化这些应用至关重要.
研究的目的:
- 合成和描述新型低发泡的非离子双子表面活性剂 (S1,S2,S3) 具有不同的聚乙烯链长度.
- 研究它们的表面张力,湿,乳化和发泡特性.
主要方法:
- 合成使用甲聚 ((乙烯基醇) 和2,5-di-tert-pentylhydroquinone.
- 通过1H NMR,福里埃变换红外光谱学和凝透射色谱学 (GPC) 进行结构确认.
- 评估表面张力,接触角度,乳液稳定性和发泡体积.
主要成果:
- 表面活性剂S1,S2和S3的微粒度表现出低临界的表面张力值 (37.1441.64 mN/m),表明表面活性良好.
- S1和S2表现出有效的湿特性,保持接触角度在2mM以上的62-64°左右.
- 在高度下,S3表现出优异的乳液稳定性,在高度下保持2个月的乳液状态.
- 与二硫酸盐相比,所有合成的表面活性剂都表现出优越的低发泡特性.
结论:
- 合成的Gemini表面活性剂具有工业清洁和光电阻应用的理想特性.
- 聚乙烯链长度影响泡特性,较长的链可能会增加泡膜的弹性.
- 这项研究为先进的低发泡表面活性剂的设计原则做出了贡献.
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