The Effect Of Alkalization Treatment On The Mechanical Properties And Water Absorption Of Kenaf/Polyester Biocomposites

Bio-composite is a material formed by resin as a matrix and a reinforcement of natural fiber. The objectives of this research are to determine the effect of chemical treatment on mechanical properties and water absorption of bio-composite kenaf fiber. The long bast kenaf fibers were treated by chemi...

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Main Author:	Phongsakorn, Prak Tom
Format:	Thesis
Language:	English English
Published:	2010
Subjects:	T Technology (General)
Online Access:	http://eprints.utem.edu.my/id/eprint/13829/1/The_Effect_Of_Alkalization_Treatment_On_The_Mechanical_Properties_And_Water_Absorption_Of_Kenaf_Polyester_Biocomposites_-_24_Pages.pdf http://eprints.utem.edu.my/id/eprint/13829/2/The_Effect_Of_Alkalization_Treatment_On_The_Mechanical_Properties_And_Water_Absorption_Of_Kenaf_Polyester_Biocomposites.pdf
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spelling	my-utem-ep.138292015-05-28T04:34:28Z The Effect Of Alkalization Treatment On The Mechanical Properties And Water Absorption Of Kenaf/Polyester Biocomposites 2010 Phongsakorn, Prak Tom T Technology (General) TA Engineering (General). Civil engineering (General) Bio-composite is a material formed by resin as a matrix and a reinforcement of natural fiber. The objectives of this research are to determine the effect of chemical treatment on mechanical properties and water absorption of bio-composite kenaf fiber. The long bast kenaf fibers were treated by chemical method using sodium hydroxide (NaOH) to improve properties of fiber. The effects of the modification on fibers have been analyzed using scanning electron microscopy (SEM). Morphological analyses proved that natrium hydroxide have effective to remove impurities on the fiber surface. By using vacuum infusion process (VIP), the bio-composite kenaf fibers panel is produced. Vacuum infusion method offers benefits over hand lay-up method, which was higher fiber to resin ratio and whilst stronger composites. In this research, mechanical tests were performed to evaluate the effect of chemical treatment on the mechanical properties of bio-composite kenaf fiber. It has been found that the alkalization treatment has improved the mechanical properties of the composites. The mechanical properties of kenaf/polyester composites were found increase with increasing of NaOH concentration. Otherwise, it decrease when immerse time is up from 12 to 24 hours. The tensile and flexural strengths were achieved as high as 90.81MPa and 93.35MPa, respectively. In spite of its high tensile and flexural properties, kenaf polyester composites treated with 9% NaOH for 12 hours demonstrated relatively low impact strength. As better impact properties are demonstrated by higher failure value, it is believed that too high concentration of NaOH possibly low failure value. The ability of water absorption among the composite also have been analyzed in this study. The percentage of moisture uptake proven that fiber treatment have positive affected on the water absorption of the composites. Lastly, it has been summarize that chemical treatment on kenaf fibers as well as manufacturing process played important role to fabricate a good mechanical properties of composites. 2010 Thesis http://eprints.utem.edu.my/id/eprint/13829/ http://eprints.utem.edu.my/id/eprint/13829/1/The_Effect_Of_Alkalization_Treatment_On_The_Mechanical_Properties_And_Water_Absorption_Of_Kenaf_Polyester_Biocomposites_-_24_Pages.pdf application/pdf en public http://eprints.utem.edu.my/id/eprint/13829/2/The_Effect_Of_Alkalization_Treatment_On_The_Mechanical_Properties_And_Water_Absorption_Of_Kenaf_Polyester_Biocomposites.pdf application/pdf en validuser http://library.utem.edu.my:8000/elmu/index.jsp?module=webopac-d&action=fullDisplayRetriever.jsp&szMaterialNo=0000080707 masters UTeM Faculty Of Manufacturing Engineering
institution	Universiti Teknikal Malaysia Melaka
collection	UTeM Repository
language	English English
topic	T Technology (General) T Technology (General)
spellingShingle	T Technology (General) T Technology (General) Phongsakorn, Prak Tom The Effect Of Alkalization Treatment On The Mechanical Properties And Water Absorption Of Kenaf/Polyester Biocomposites
description	Bio-composite is a material formed by resin as a matrix and a reinforcement of natural fiber. The objectives of this research are to determine the effect of chemical treatment on mechanical properties and water absorption of bio-composite kenaf fiber. The long bast kenaf fibers were treated by chemical method using sodium hydroxide (NaOH) to improve properties of fiber. The effects of the modification on fibers have been analyzed using scanning electron microscopy (SEM). Morphological analyses proved that natrium hydroxide have effective to remove impurities on the fiber surface. By using vacuum infusion process (VIP), the bio-composite kenaf fibers panel is produced. Vacuum infusion method offers benefits over hand lay-up method, which was higher fiber to resin ratio and whilst stronger composites. In this research, mechanical tests were performed to evaluate the effect of chemical treatment on the mechanical properties of bio-composite kenaf fiber. It has been found that the alkalization treatment has improved the mechanical properties of the composites. The mechanical properties of kenaf/polyester composites were found increase with increasing of NaOH concentration. Otherwise, it decrease when immerse time is up from 12 to 24 hours. The tensile and flexural strengths were achieved as high as 90.81MPa and 93.35MPa, respectively. In spite of its high tensile and flexural properties, kenaf polyester composites treated with 9% NaOH for 12 hours demonstrated relatively low impact strength. As better impact properties are demonstrated by higher failure value, it is believed that too high concentration of NaOH possibly low failure value. The ability of water absorption among the composite also have been analyzed in this study. The percentage of moisture uptake proven that fiber treatment have positive affected on the water absorption of the composites. Lastly, it has been summarize that chemical treatment on kenaf fibers as well as manufacturing process played important role to fabricate a good mechanical properties of composites.
format	Thesis
qualification_level	Master's degree
author	Phongsakorn, Prak Tom
author_facet	Phongsakorn, Prak Tom
author_sort	Phongsakorn, Prak Tom
title	The Effect Of Alkalization Treatment On The Mechanical Properties And Water Absorption Of Kenaf/Polyester Biocomposites
title_short	The Effect Of Alkalization Treatment On The Mechanical Properties And Water Absorption Of Kenaf/Polyester Biocomposites
title_full	The Effect Of Alkalization Treatment On The Mechanical Properties And Water Absorption Of Kenaf/Polyester Biocomposites
title_fullStr	The Effect Of Alkalization Treatment On The Mechanical Properties And Water Absorption Of Kenaf/Polyester Biocomposites
title_full_unstemmed	The Effect Of Alkalization Treatment On The Mechanical Properties And Water Absorption Of Kenaf/Polyester Biocomposites
title_sort	effect of alkalization treatment on the mechanical properties and water absorption of kenaf/polyester biocomposites
granting_institution	UTeM
granting_department	Faculty Of Manufacturing Engineering
publishDate	2010
url	http://eprints.utem.edu.my/id/eprint/13829/1/The_Effect_Of_Alkalization_Treatment_On_The_Mechanical_Properties_And_Water_Absorption_Of_Kenaf_Polyester_Biocomposites_-_24_Pages.pdf http://eprints.utem.edu.my/id/eprint/13829/2/The_Effect_Of_Alkalization_Treatment_On_The_Mechanical_Properties_And_Water_Absorption_Of_Kenaf_Polyester_Biocomposites.pdf
_version_	1747833812908244992

The Effect Of Alkalization Treatment On The Mechanical Properties And Water Absorption Of Kenaf/Polyester Biocomposites

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