Green magnetite nanocomposite sheet using coprecipitation loading method as a wave absorber in RFID applications

EM wave absorber had been used to solve the RFID interference problem when it is used in near metallic environment. Synthetic polymeric matrix from various cellulosic pulps were used to produce wave absorbers with magnetite as its main reinforcement using two different approaches namely lumen loadin...

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Main Author:	Mustaq Ahmad, Mohd Khairul Sharil
Format:	Thesis
Language:	English English
Published:	2014
Subjects:	TA Engineering (General) Civil engineering (General)
Online Access:	http://eprints.utem.edu.my/id/eprint/14984/1/GREEN%20MAGNETITE%20NANOCOMPOSITE%20SHEET%20USING%20COPRECIPITATION%2024%20pages.pdf http://eprints.utem.edu.my/id/eprint/14984/2/Green%20magnetite%20nanocomposite%20sheet%20using%20coprecipitation%20loading%20method%20as%20a%20wave%20absorber%20in%20RFID%20applications.pdf
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spelling	my-utem-ep.149842022-04-19T09:40:36Z Green magnetite nanocomposite sheet using coprecipitation loading method as a wave absorber in RFID applications 2014 Mustaq Ahmad, Mohd Khairul Sharil TA Engineering (General). Civil engineering (General) EM wave absorber had been used to solve the RFID interference problem when it is used in near metallic environment. Synthetic polymeric matrix from various cellulosic pulps were used to produce wave absorbers with magnetite as its main reinforcement using two different approaches namely lumen loading method and in-situ coprecipitation method. Since both methods were a successful in terms of green technology and cost reduction, this study focused on enhancing the previous two methods by introducing a new developed method called as coprecipitation loading method. Besides that, the exploration of the compatibility of paddy straw and recycled paper as the magnetic sheet matrix also was done to add the green technology value. Result obtained reveal that paddy straw and recycled paper are very good candidate to be embedded with nano-magnetite particles thus conforming its compatibility to be used as a substrate to produce the wave absorber. All three loading methods have good degree of loading around 18.4% to 34.4%, and VSM data also shows that the magnetic wave absorbers exhibit good superparamagnetic behaviour. The proposed method consume less power to be produced compared to the previous methods thus contributes to green environmental effects. All samples were tested in the HF RFID application near to metallic environment showing great performance in alleviating the interference problem and recover up to 60% of the distance detection by comparing to the commercial wave absorber. By using the loading methods and substrates proposed, this research contributes to the production of Green Magnetite Nanocomposites Sheets using substrate from paddy straw and recycled paper pulp combined with magnetite nanoparticles. Besides that, the introduction of coprecipitation loading method also enables magnetic sheet to be produced using less energy compared to previous methods. Lastly, samples produced indicate that the green magnetic wave absorber do perform its main purpose in the RFID application near metallic environment. 2014 Thesis http://eprints.utem.edu.my/id/eprint/14984/ http://eprints.utem.edu.my/id/eprint/14984/1/GREEN%20MAGNETITE%20NANOCOMPOSITE%20SHEET%20USING%20COPRECIPITATION%2024%20pages.pdf text en public http://eprints.utem.edu.my/id/eprint/14984/2/Green%20magnetite%20nanocomposite%20sheet%20using%20coprecipitation%20loading%20method%20as%20a%20wave%20absorber%20in%20RFID%20applications.pdf text en validuser https://plh.utem.edu.my/cgi-bin/koha/opac-detail.pl?biblionumber=92060 mphil masters Universiti Teknikal Malaysia Melaka Faculty of Manufacturing Engineering Munawar, Rose Farahiyan
institution	Universiti Teknikal Malaysia Melaka
collection	UTeM Repository
language	English English
advisor	Munawar, Rose Farahiyan
topic	TA Engineering (General) Civil engineering (General)
spellingShingle	TA Engineering (General) Civil engineering (General) Mustaq Ahmad, Mohd Khairul Sharil Green magnetite nanocomposite sheet using coprecipitation loading method as a wave absorber in RFID applications
description	EM wave absorber had been used to solve the RFID interference problem when it is used in near metallic environment. Synthetic polymeric matrix from various cellulosic pulps were used to produce wave absorbers with magnetite as its main reinforcement using two different approaches namely lumen loading method and in-situ coprecipitation method. Since both methods were a successful in terms of green technology and cost reduction, this study focused on enhancing the previous two methods by introducing a new developed method called as coprecipitation loading method. Besides that, the exploration of the compatibility of paddy straw and recycled paper as the magnetic sheet matrix also was done to add the green technology value. Result obtained reveal that paddy straw and recycled paper are very good candidate to be embedded with nano-magnetite particles thus conforming its compatibility to be used as a substrate to produce the wave absorber. All three loading methods have good degree of loading around 18.4% to 34.4%, and VSM data also shows that the magnetic wave absorbers exhibit good superparamagnetic behaviour. The proposed method consume less power to be produced compared to the previous methods thus contributes to green environmental effects. All samples were tested in the HF RFID application near to metallic environment showing great performance in alleviating the interference problem and recover up to 60% of the distance detection by comparing to the commercial wave absorber. By using the loading methods and substrates proposed, this research contributes to the production of Green Magnetite Nanocomposites Sheets using substrate from paddy straw and recycled paper pulp combined with magnetite nanoparticles. Besides that, the introduction of coprecipitation loading method also enables magnetic sheet to be produced using less energy compared to previous methods. Lastly, samples produced indicate that the green magnetic wave absorber do perform its main purpose in the RFID application near metallic environment.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Mustaq Ahmad, Mohd Khairul Sharil
author_facet	Mustaq Ahmad, Mohd Khairul Sharil
author_sort	Mustaq Ahmad, Mohd Khairul Sharil
title	Green magnetite nanocomposite sheet using coprecipitation loading method as a wave absorber in RFID applications
title_short	Green magnetite nanocomposite sheet using coprecipitation loading method as a wave absorber in RFID applications
title_full	Green magnetite nanocomposite sheet using coprecipitation loading method as a wave absorber in RFID applications
title_fullStr	Green magnetite nanocomposite sheet using coprecipitation loading method as a wave absorber in RFID applications
title_full_unstemmed	Green magnetite nanocomposite sheet using coprecipitation loading method as a wave absorber in RFID applications
title_sort	green magnetite nanocomposite sheet using coprecipitation loading method as a wave absorber in rfid applications
granting_institution	Universiti Teknikal Malaysia Melaka
granting_department	Faculty of Manufacturing Engineering
publishDate	2014
url	http://eprints.utem.edu.my/id/eprint/14984/1/GREEN%20MAGNETITE%20NANOCOMPOSITE%20SHEET%20USING%20COPRECIPITATION%2024%20pages.pdf http://eprints.utem.edu.my/id/eprint/14984/2/Green%20magnetite%20nanocomposite%20sheet%20using%20coprecipitation%20loading%20method%20as%20a%20wave%20absorber%20in%20RFID%20applications.pdf
_version_	1747833855272812544

Green magnetite nanocomposite sheet using coprecipitation loading method as a wave absorber in RFID applications

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