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X-Ray Scattering and Rheology/Micror...

Liu, Weiping.

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X-Ray Scattering and Rheology/Microrheology Characterization of Nanocomposite Films and Nanoparticle Dispersions.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	X-Ray Scattering and Rheology/Microrheology Characterization of Nanocomposite Films and Nanoparticle Dispersions./
作者:	Liu, Weiping.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
面頁冊數:	114 p.
附註:	Source: Dissertations Abstracts International, Volume: 83-01, Section: B.
Contained By:	Dissertations Abstracts International83-01B.
標題:	Chemistry. -
電子資源:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28323828
ISBN:	9798516922336

X-Ray Scattering and Rheology/Microrheology Characterization of Nanocomposite Films and Nanoparticle Dispersions.
Liu, Weiping.

X-Ray Scattering and Rheology/Microrheology Characterization of Nanocomposite Films and Nanoparticle Dispersions. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 114 p.

Source: Dissertations Abstracts International, Volume: 83-01, Section: B.

Thesis (Ph.D.)--State University of New York at Stony Brook, 2021.

This item must not be sold to any third party vendors.

Nanocomposite films and nanoparticle electrolyte solutions have generated a lot of attention due to applications in a wide variety of products. The advantages of nanocomposite films and nanoparticle electrolyte solutions can be beneficial to various industries such as painting, 3D printing and vehicle battery fabrication, and so on. One of the critical factors for the design of functional films and electrolytes is to have a complete understanding of their structures and properties. This dissertation characterized nanocomposite films and nanoparticle electrolyte dispersions with a combination of conventional and novel experimental techniques. In the first case, we utilized small angle X-ray scattering to study dried binary nanocomposite films and an in-situ scattering experiment to measure the changes in wet film structures during the drying process. We discovered a sandwich structure, where particles of one size enrich the top and bottom and another size enrich the center, in the characterization of dried films, which has not been reported before. While the wet film measurements did not show an obvious variation in composition throughout the film depth, different orderings of particles were present. Both experiments established a novel way to characterize dried and wet nanocomposite films. In the second case, we applied X-ray photon correlation spectroscopy (XPCS) and conventional rheological tests on sterically-stabilized nanoparticles in ionic liquids. The modified nanoparticles are expected to become more stable and exhibit non-Newtonian behavior in ionic liquids. Our X-ray photon correlation spectroscopy measurements showed slow dynamics of these particles, as well as a shear-thinning behavior in the XPCS-microrheology analysis. On the other hand, conventional bulk rheology showed similar shear-dependent properties, except for some shear-thickening behaviors at low and high shear rate for concentrated samples.

ISBN: 9798516922336Subjects--Topical Terms:

516420
Chemistry.
Subjects--Index Terms:

Microrheology

X-Ray Scattering and Rheology/Microrheology Characterization of Nanocomposite Films and Nanoparticle Dispersions.
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