化学工程
透射电子显微镜
材料科学
胶束
动态光散射
扫描电子显微镜
傅里叶变换红外光谱
纳米颗粒
X射线光电子能谱
纳米技术
化学
复合材料
有机化学
水溶液
工程类
作者
Kaiwen Liu,Mingwei Zhao,Shichun Liu,Zhuoran Zhang,Xiaowei Yan,Zhenfeng Ma,Ziteng Yang,Ying Li,Jingbin Zeng,Caili Dai
出处
期刊:ACS applied nano materials
[American Chemical Society]
日期:2023-09-21
卷期号:6 (19): 17760-17768
被引量:1
标识
DOI:10.1021/acsanm.3c03042
摘要
In this study, nanofiber-surrounded urchin-like SiO2 nanospheres (SiO2–NUs) were synthesized using the template method and effectively reinforced clean fracturing fluids comprising cetyltrimethylammonium bromide and sodium salicylate. The SiO2–NUs particle size and morphology were measured using transmission electron microscopy, scanning electron microscopy, and dynamic light scattering. The composition of SiO2–NUs was characterized using Fourier-transform infrared spectroscopy, X-ray diffraction, and X-ray photoelectron spectroscopy. After the introduction of SiO2–NUs to the clean fracturing fluids, the rheological properties, salinity resistance, and dynamic filtration loss were all substantially improved. The viscosity increased from 10,781 to 22,991 mPa·s, which was more than 2 times higher. This enhancement was due to the ultrahigh specific surface area of SiO2–NUs and the formation of micelle–nanoparticle junctions. Finally, the interaction between SiO2–NUs and wormlike micelles was elucidated, and a mechanism was proposed for SiO2–NUs enhancing wormlike micelles. The results of this study should broaden the application scope of nanomaterials in the fracturing fluids.
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