肺表面活性物质
流变学
触变性
膨胀的
阳离子聚合
化学工程
粘弹性
环氧氯丙烷
絮凝作用
材料科学
胶束
扫描电子显微镜
化学
水溶液
高分子化学
复合材料
有机化学
工程类
作者
Liangyuan Wang,Bo Fang,Mo Yang
标识
DOI:10.1080/01932691.2017.1316203
摘要
A new cationic Gemini surfactant (25-HP-25) was synthesized with eruamidopropyl dimethylamine and epichlorohydrin, and its solution is self-thickening. The rheological properties of 25-HP-25 and 3-chloro-2-hydroxypropyl eruamidopropyl dimethyl ammonium acetate (EDAA) solutions were compared. The solution of EDAA behaves as Newtonian fluid (1 s−1 < γ < 1000s−1). Whereas the 25-HP-25 micelle solution (2 wt%) exhibits higher viscosity, which is about three hundred times than that of EDAA solution at low shear rate (γ < 1 s−1). Especially, the 25-HP-25 solution shows obvious thixotropy, and with the increase of concentration, the viscoelasticity becomes better. Furthermore, the compaction of network structures has been confirmed by cryo-field emission scanning electron microscopy (cryo-FESEM) micrographs. This work is expected to enrich the research field of self-thickening surfactant.
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