期刊
APPLIED CLAY SCIENCE
卷 126, 期 -, 页码 215-222出版社
ELSEVIER
DOI: 10.1016/j.clay.2016.03.018
关键词
Halloysite nanotubes; Nanofluids; Dispersion; Surface treatment
资金
- National Natural Science Foundation of China [51403165, 51503161, 51203123]
- Open Project Program of High-Tech Organic Fibers Key Laboratory of Sichuan Province [152140]
In this paper, a novel type of clay mineral (halloysite) nanofluids was successfully synthesized through surface hydroxylated treatment and then tertiary amine and sulfonate anions. The halloysite (Hal) exhibits liquid-like behavior in the absence of solvent above 80 degrees C while it is a gel-like stickum at room temperature. Moreover, the morphology, rheological behavior, thermal and dispersion properties of the resultant Hal nanofluids were systematically characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), energy dispersive X-ray (EDX) analysis, X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), UV-Vis transmission spectra and rheological test. Rheological test results show that viscoelasticity (solid-like to liquid-like transition) of Hal nanofluids were regulated by temperature variation. The unique properties of the Hal nanofluids have made this material promising in the applications as rheological additives in industrial paints and polymer processing aids fields. (C) 2016 Elsevier B.V. All rights reserved.
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