Fabrication and applications of honeycomb structure films

Novel developments in the field of material engineering sought to improve cost efficiency and production quality. Breath figure templating technique is a promising self-assembly technique that awaits to be applied commercially. The technique forms monodisperse pores across a surface in a facile, one...

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Main Author: Aw, Jia En
Other Authors: School of Mechanical and Aerospace Engineering
Format: Final Year Project
Language:English
Published: 2014
Subjects:
Online Access:http://hdl.handle.net/10356/61429
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-614292023-03-04T18:18:51Z Fabrication and applications of honeycomb structure films Aw, Jia En School of Mechanical and Aerospace Engineering A*STAR Institute of Materials Research and Engineering Zhang Yilei DRNTU::Engineering::Materials Novel developments in the field of material engineering sought to improve cost efficiency and production quality. Breath figure templating technique is a promising self-assembly technique that awaits to be applied commercially. The technique forms monodisperse pores across a surface in a facile, one-step process. The fabricated surfaces are versatile and have found many applications. However, in the past, scientists have only focused on BFAs with close-packed features. This study extends the fabrication technique to produce non-close-packed morphologies, which are can find new uses involving structural colourations, photonic materials, bio-substrates, etc. In this study, hydrogen bromide (HBr) is added into BF casting solution such that ion partitioning can occur. Electrostatic forces were exploited to induce repulsion between water droplets, which led to separations in the porous morphology. The optimization was successful and contributing system components were discussed. General conditions which led to the formation of non-close-packed morphologies were further elaborated, serving as a guideline to tune and optimize similar fabrications in the future. Bachelor of Engineering (Mechanical Engineering) 2014-06-10T04:57:22Z 2014-06-10T04:57:22Z 2014 2014 Final Year Project (FYP) http://hdl.handle.net/10356/61429 en Nanyang Technological University 90 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::Materials
spellingShingle DRNTU::Engineering::Materials
Aw, Jia En
Fabrication and applications of honeycomb structure films
description Novel developments in the field of material engineering sought to improve cost efficiency and production quality. Breath figure templating technique is a promising self-assembly technique that awaits to be applied commercially. The technique forms monodisperse pores across a surface in a facile, one-step process. The fabricated surfaces are versatile and have found many applications. However, in the past, scientists have only focused on BFAs with close-packed features. This study extends the fabrication technique to produce non-close-packed morphologies, which are can find new uses involving structural colourations, photonic materials, bio-substrates, etc. In this study, hydrogen bromide (HBr) is added into BF casting solution such that ion partitioning can occur. Electrostatic forces were exploited to induce repulsion between water droplets, which led to separations in the porous morphology. The optimization was successful and contributing system components were discussed. General conditions which led to the formation of non-close-packed morphologies were further elaborated, serving as a guideline to tune and optimize similar fabrications in the future.
author2 School of Mechanical and Aerospace Engineering
author_facet School of Mechanical and Aerospace Engineering
Aw, Jia En
format Final Year Project
author Aw, Jia En
author_sort Aw, Jia En
title Fabrication and applications of honeycomb structure films
title_short Fabrication and applications of honeycomb structure films
title_full Fabrication and applications of honeycomb structure films
title_fullStr Fabrication and applications of honeycomb structure films
title_full_unstemmed Fabrication and applications of honeycomb structure films
title_sort fabrication and applications of honeycomb structure films
publishDate 2014
url http://hdl.handle.net/10356/61429
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