Investigation the effect of expanded graphite modification on tensile properties and adhesive of epoxy composite

Graphite has attracted both academia and researchers due to its outstanding properties such as having strength 200 times stronger than steel, great efficiency of heat and electricity conduction, and also low cost. The aim of this study is to determine the tensile properties and adhesive toughness of...

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主要作者:	Che Berhanuddin, Nurul Idani
格式:	Thesis
语言:	English English English
出版:	2018
主题:	TA401-492 Materials of engineering and construction Mechanics of materials
在线阅读:	http://eprints.uthm.edu.my/219/1/24p%20NURUL%20IDANI%20BINTI%20CHE%20BERHANUDDIN.pdf http://eprints.uthm.edu.my/219/2/NURUL%20IDANI%20BINTI%20CHE%20BERHANUDDIN%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/219/3/NURUL%20IDANI%20BINTI%20CHE%20BERHANUDDIN%20WATERMARK.pdf
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spelling	my-uthm-ep.2192021-07-13T01:20:33Z Investigation the effect of expanded graphite modification on tensile properties and adhesive of epoxy composite 2018-09 Che Berhanuddin, Nurul Idani TA401-492 Materials of engineering and construction. Mechanics of materials Graphite has attracted both academia and researchers due to its outstanding properties such as having strength 200 times stronger than steel, great efficiency of heat and electricity conduction, and also low cost. The aim of this study is to determine the tensile properties and adhesive toughness of unmodified graphite composite and to investigate the effects of its modification on the properties of epoxy composite. Two facile approaches of producing the expanded graphite were performed: thermal expansion and sonication process. Since epoxy polymer and graphite are not compatible, thus the interface modifications of graphite are required to enhance the adhesion of filler-polymeric matrix. In this research, 4,4'-Methylene diphenyl diisocyanate (MDI) was used as modifying agent of graphite. The effect of modification on chemical structure, mechanical properties, adhesive toughness and morphology of epoxy composite were investigated by using FTIR, tensile test, double cantilevered beam test and SEM. The results revealed that 0.5 wt% modified composites shows the highest improvement for Young's modulus and adhesive toughness which are 8 GPa and 12.17 kJ/m2 , respectively. These results were also confirmed by the FTIR analysis of the chemical structures and SEM observation of fracture surface. This outcome proved that the surface modifications of expanded graphite have succeeded in enhancing the mechanical properties and improve the adhesive toughness of epoxy composites, hence promote its application as adhesive for metallic adherents. 2018-09 Thesis http://eprints.uthm.edu.my/219/ http://eprints.uthm.edu.my/219/1/24p%20NURUL%20IDANI%20BINTI%20CHE%20BERHANUDDIN.pdf text en public http://eprints.uthm.edu.my/219/2/NURUL%20IDANI%20BINTI%20CHE%20BERHANUDDIN%20COPYRIGHT%20DECLARATION.pdf text en staffonly http://eprints.uthm.edu.my/219/3/NURUL%20IDANI%20BINTI%20CHE%20BERHANUDDIN%20WATERMARK.pdf text en validuser mphil masters Universiti Tun Hussein Onn Malaysia Faculty of Mechanical and Manufacturing Engineering
institution	Universiti Tun Hussein Onn Malaysia
collection	UTHM Institutional Repository
language	English English English
topic	TA401-492 Materials of engineering and construction Mechanics of materials
spellingShingle	TA401-492 Materials of engineering and construction Mechanics of materials Che Berhanuddin, Nurul Idani Investigation the effect of expanded graphite modification on tensile properties and adhesive of epoxy composite
description	Graphite has attracted both academia and researchers due to its outstanding properties such as having strength 200 times stronger than steel, great efficiency of heat and electricity conduction, and also low cost. The aim of this study is to determine the tensile properties and adhesive toughness of unmodified graphite composite and to investigate the effects of its modification on the properties of epoxy composite. Two facile approaches of producing the expanded graphite were performed: thermal expansion and sonication process. Since epoxy polymer and graphite are not compatible, thus the interface modifications of graphite are required to enhance the adhesion of filler-polymeric matrix. In this research, 4,4'-Methylene diphenyl diisocyanate (MDI) was used as modifying agent of graphite. The effect of modification on chemical structure, mechanical properties, adhesive toughness and morphology of epoxy composite were investigated by using FTIR, tensile test, double cantilevered beam test and SEM. The results revealed that 0.5 wt% modified composites shows the highest improvement for Young's modulus and adhesive toughness which are 8 GPa and 12.17 kJ/m2 , respectively. These results were also confirmed by the FTIR analysis of the chemical structures and SEM observation of fracture surface. This outcome proved that the surface modifications of expanded graphite have succeeded in enhancing the mechanical properties and improve the adhesive toughness of epoxy composites, hence promote its application as adhesive for metallic adherents.
format	Thesis
qualification_name	Master of Philosophy (M.Phil.)
qualification_level	Master's degree
author	Che Berhanuddin, Nurul Idani
author_facet	Che Berhanuddin, Nurul Idani
author_sort	Che Berhanuddin, Nurul Idani
title	Investigation the effect of expanded graphite modification on tensile properties and adhesive of epoxy composite
title_short	Investigation the effect of expanded graphite modification on tensile properties and adhesive of epoxy composite
title_full	Investigation the effect of expanded graphite modification on tensile properties and adhesive of epoxy composite
title_fullStr	Investigation the effect of expanded graphite modification on tensile properties and adhesive of epoxy composite
title_full_unstemmed	Investigation the effect of expanded graphite modification on tensile properties and adhesive of epoxy composite
title_sort	investigation the effect of expanded graphite modification on tensile properties and adhesive of epoxy composite
granting_institution	Universiti Tun Hussein Onn Malaysia
granting_department	Faculty of Mechanical and Manufacturing Engineering
publishDate	2018
url	http://eprints.uthm.edu.my/219/1/24p%20NURUL%20IDANI%20BINTI%20CHE%20BERHANUDDIN.pdf http://eprints.uthm.edu.my/219/2/NURUL%20IDANI%20BINTI%20CHE%20BERHANUDDIN%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/219/3/NURUL%20IDANI%20BINTI%20CHE%20BERHANUDDIN%20WATERMARK.pdf
_version_	1747830557047259136

Investigation the effect of expanded graphite modification on tensile properties and adhesive of epoxy composite

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