Publication Date

2018

Document Type

Dissertation/Thesis

First Advisor

Lin, Chhiu-Tsu

Second Advisor

Hagen, Timothy

Degree Name

Ph.D. (Doctor of Philosophy)

Legacy Department

Department of Chemistry and Biochemistry

Abstract

Application of Nanomaterials using nanotechnology has gained significant

attention in the coating industry in recent years. Their application has had a great

impact, particularly in the 3C industries (computer, communication, and construction).

Incorporation of nanomaterials into polymer carriers through a systematic approach to

coating processes can enhance various physical properties, such as mechanical,

optical, electrical and thermal properties. The current dissertation focused on the

synthesis and characterization of new nanomaterials like mesoporous silica or

nanocomposites like copper-doped zinc oxide that can be used in the coating to study

thermal cooling performance and enhancement of thermal conductivity. New thermal

devices will be built using several ASTM processes to observe molecular fan effect on

heat sinks. In addition to those, this dissertation covers the new formulation technique

using inorganic/organic hybrid nanocomposite coatings for multi-functional purposes,

such as heat dissipation, corrosion inhibition, and semiconductor applications.

In the first project, we developed a thin inorganic/organic hybrid

nanocomposite coating to study corrosion inhibition performance on metal alloys. In

this project, we employed an in-situ phosphatization technique for corrosion protection

and a ‘Molecular Fan’ technique to dissipate heat from metal alloys like

aluminum/zinc/magnesium. Salt-Fog testing results show we can achieve good

protection up to 722 hours. Our goal is to reach 1000 hours. The effect of using ISPR,

nanomaterials, pigments etc. is discussed in this project.

In the second project, we made polymer formulations composed of carbon-based

nanomaterials exhibiting the Molecular Fan effect. In the first part, we studied

its effect on heat sinks using an existing cooling device. In the second part, we

designed, developed and built a new thermal device to study the Molecular Fan effect

and compared and contrasted it with the existing one. We also tested its application on

communication devices such as a cell phone.

In the third project, we synthesized and studied a new type of nanomaterials

‘Copper-doped Zinc Oxide’ in two ways by the ‘solvo-thermal’ method and the

‘precipitation’ method. We discuss each process and its results in detail. We

characterized the newly developed materials, studied their properties, and developed

emulsion coating formulation and measured thermal performance. In the future, we

propose to investigate the mechanical properties, optical properties such as

photoluminescence of ZnO, and to find the best way for the possible application

(photocatalyst).

In the fourth project, we synthesized and characterized porous nanomaterials

‘Mesoporous Silica’ through an investigation of its physical properties. We formulated

nanocoating using silica-based nanocomposite and studied its thermal performance.

Extent

266 pages

Language

eng

Publisher

Northern Illinois University

Rights Statement

In Copyright

Rights Statement 2

NIU theses are protected by copyright. They may be viewed from Huskie Commons for any purpose, but reproduction or distribution in any format is prohibited without the written permission of the authors.

Media Type

Text

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