A study on UV-curable polymer nanocomposite coatings

Antireflective coating is a thin layer coating on the surface of a substrate to reduce the reflection. When the reflection is reduced, the transmission is increased and less light is lost. Antireflective coatings are widely used in display devices, photovoltaic devices and other optical systems. Cur...

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Main Author: Che, Boyang
Other Authors: Lu Xuehong
Format: Final Year Project
Language:English
Published: 2014
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Online Access:http://hdl.handle.net/10356/55788
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-557882023-03-04T15:34:13Z A study on UV-curable polymer nanocomposite coatings Che, Boyang Lu Xuehong School of Materials Science and Engineering DRNTU::Engineering Antireflective coating is a thin layer coating on the surface of a substrate to reduce the reflection. When the reflection is reduced, the transmission is increased and less light is lost. Antireflective coatings are widely used in display devices, photovoltaic devices and other optical systems. Currently antireflective coatings can be made by several types of materials, but polymer is the one with many advantages. To fabricate such an antireflective coating, current methods are time and energy consuming. And very few can be applied in industry for a large-scale manufacturing. In this project, an antireflective coating of UV curable polymer/silica nanocomposite was proposed. The project served as an early stage study, which focused on the surface modification of silica particles, the dispersion of silica particles in polymer and the curing process of polymer/silica nanocomposite. By techniques of FTIR/FESEM/TEM/TGA/Photo DSC/UV-Vis spectroscopy, the result has shown that the surface modification of silica was successful. The degree of modification was studied by estimating the number of chains attached per unit area. The curing process of polymer might be accelerated by adding silica and the content of silica influenced the reaction rate. The dispersion state was also studied, and a higher content of silica resulted in a poorer dispersion. For the future work, a better surface modification method is recommended to improve dispersion. In addition, to study the dispersion state, the cross-section of the coating can be observed under FESEM. Moreover, the content of filler can be increased for further study, if a better dispersion is available. Also, a quantitative study on curing kinetics can be conducted at different filler contents. Bachelor of Engineering (Materials Engineering) 2014-03-31T05:49:56Z 2014-03-31T05:49:56Z 2014 2014 Final Year Project (FYP) http://hdl.handle.net/10356/55788 en Nanyang Technological University 48 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering
spellingShingle DRNTU::Engineering
Che, Boyang
A study on UV-curable polymer nanocomposite coatings
description Antireflective coating is a thin layer coating on the surface of a substrate to reduce the reflection. When the reflection is reduced, the transmission is increased and less light is lost. Antireflective coatings are widely used in display devices, photovoltaic devices and other optical systems. Currently antireflective coatings can be made by several types of materials, but polymer is the one with many advantages. To fabricate such an antireflective coating, current methods are time and energy consuming. And very few can be applied in industry for a large-scale manufacturing. In this project, an antireflective coating of UV curable polymer/silica nanocomposite was proposed. The project served as an early stage study, which focused on the surface modification of silica particles, the dispersion of silica particles in polymer and the curing process of polymer/silica nanocomposite. By techniques of FTIR/FESEM/TEM/TGA/Photo DSC/UV-Vis spectroscopy, the result has shown that the surface modification of silica was successful. The degree of modification was studied by estimating the number of chains attached per unit area. The curing process of polymer might be accelerated by adding silica and the content of silica influenced the reaction rate. The dispersion state was also studied, and a higher content of silica resulted in a poorer dispersion. For the future work, a better surface modification method is recommended to improve dispersion. In addition, to study the dispersion state, the cross-section of the coating can be observed under FESEM. Moreover, the content of filler can be increased for further study, if a better dispersion is available. Also, a quantitative study on curing kinetics can be conducted at different filler contents.
author2 Lu Xuehong
author_facet Lu Xuehong
Che, Boyang
format Final Year Project
author Che, Boyang
author_sort Che, Boyang
title A study on UV-curable polymer nanocomposite coatings
title_short A study on UV-curable polymer nanocomposite coatings
title_full A study on UV-curable polymer nanocomposite coatings
title_fullStr A study on UV-curable polymer nanocomposite coatings
title_full_unstemmed A study on UV-curable polymer nanocomposite coatings
title_sort study on uv-curable polymer nanocomposite coatings
publishDate 2014
url http://hdl.handle.net/10356/55788
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