The Study of a Novel Nanoparticle-Enhanced Wormlike Micellar System

被引：33

作者：

Dai, Caili ^{[1
]}

Zhang, Yue ^{[1
]}

Gao, Mingwei ^{[1
]}

Li, Yuyang ^{[1
]}

Lv, Wenjiao ^{[1
]}

Wang, Xinke ^{[1
]}

Wu, Yining ^{[1
]}

Zhao, Mingwei ^{[1
]}

机构：

[1] China Univ Petr East China, Sch Petr Engn, State Key Lab Heavy Oil Proc, Qingdao 266580, Shandong, Peoples R China

来源：

NANOSCALE RESEARCH LETTERS | 2017年 / 12卷

关键词：

Silica nanoparticle; Nanoparticles enhanced; Rheological properties; Contour length; ANIONIC SURFACTANT; NONLINEAR RHEOLOGY; IONIC LIQUID; PARTICLES;

D O I：

10.1186/s11671-017-2198-2

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this work, a novel nanoparticle-enhanced wormlike micellar system (NEWMS) was proposed based on the typical wormlike micelles composed of cetyltrimethylammonium bromide (CTAB) and sodium salicylate (NaSal). In order to strengthen the structure of wormlike micelles, silica nanoparticles are used to design the novel nanoparticle-enhanced wormlike micelle. The stability and morphologies of silica nanoparticles were studied by dynamic light scattering (DLS) and transmission electron microscopy (TEM) at first. After the formation of NEWMS, the rheological properties were discussed in detail. The zero-shear viscosity of NEWMS increases with the addition of silica nanoparticles. Dynamic oscillatory measurements show the viscoelastic properties of NEWMS. Through comparison with the original wormlike micelles, the entanglement length and mesh size of NEWMS are nearly unchanged, while the contour length increases with the increase of silica concentration. These phenomena confirm the enhanced influence of silica nanoparticles on wormlike micelles. The formation mechanism of NEWMS, especially the interactions between wormlike micelles and nanoparticles, is proposed. This work can deepen the understanding of the novel NEWMS and widen their applications.

引用

页数：7

共 51 条

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