The effect of stearic acid treatment and calcium carbonate on properties of kenaf reinforced polyester composites

In this research, kenaf/unsaturated polyester and kenaf fiber/CaCO₃ polyester hybrid composites were fabricated using hand lay-up method. The effect of surface treatment of kenaf and CaCO₃ on the mechanical properties, morphology, chemical structures and water absorption were studied. The Fourier Tr...

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Format:	Thesis
Language:	English
Subjects:	Polymeric composites Fibers Kenaf Hybrid composites Composites Natural fiber
Online Access:	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77171/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77171/2/Full%20text.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77171/4/Olawuni%20Ashifat.pdf
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spelling	my-unimap-771712022-11-24T07:29:19Z The effect of stearic acid treatment and calcium carbonate on properties of kenaf reinforced polyester composites Rozyanty, Rahman, Dr. In this research, kenaf/unsaturated polyester and kenaf fiber/CaCO₃ polyester hybrid composites were fabricated using hand lay-up method. The effect of surface treatment of kenaf and CaCO₃ on the mechanical properties, morphology, chemical structures and water absorption were studied. The Fourier Transform Infrared (FT-IR) spectroscopy was observed for untreated and treated kenaf fibers, and untreated and treated CaCO₃ particles. The untreated and treated kenaf fibers showed a very strong and broad absorption peak in the region 3200-3600cm-1 of hydrogen bonded O-H stretching vibration. However, the peaks 2918cm-1 and 2917cm-1 of the treated kenaf showed that stearic acid had successfully coated the surface of the kenaf fiber as well as 2918cm-1 in treated CaCO₃. The tensile strength of kenaf/ CaCO₃ polyester composites was found to have highest value with 6% CaCO₃ (70.1MPa) in comparison with treated kenaf fiber/unsaturated polyester composites (57.7MPa) and untreated kenaf fiber/unsaturated polyester composites (43.2MPa) at 20% fiber loading. The flexural strength and flexural modulus showed similar trend as tensile strength and tensile modulus (68.5MPa and 3741.4MPa respectively). The Scanning Electron Microscope (SEM) revealed that the surface of the treated fibers became rough after treatment due to the coated of SA onto the surface. The treatment enhances better interaction and adhesion of fiber and matrix. The results of water absorption study depicted that increasing the loading of kenaf fiber in the composites resulted in increasing water absorption, and hybrid composites attained equilibrium earlier than other composites due to the incorporation of CaCO₃ that prevent further water penetration followed by treated and untreated composites respectively. Universiti Malaysia Perlis (UniMAP) Thesis en http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77171 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77171/3/license.txt 8a4605be74aa9ea9d79846c1fba20a33 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77171/1/Page%201-24.pdf 484ecb0279e9dd5d0f59e1589fae8c10 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77171/2/Full%20text.pdf ba611f209fdf74473349ab582682ddba http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77171/4/Olawuni%20Ashifat.pdf 25adb87bfe8b6d11f1bb520bf54170e2 Universiti Malaysia Perlis (UniMAP) Polymeric composites Fibers Kenaf Hybrid composites Composites Natural fiber School of Materials Engineering
institution	Universiti Malaysia Perlis
collection	UniMAP Institutional Repository
language	English
advisor	Rozyanty, Rahman, Dr.
topic	Polymeric composites Fibers Kenaf Hybrid composites Composites Natural fiber
spellingShingle	Polymeric composites Fibers Kenaf Hybrid composites Composites Natural fiber The effect of stearic acid treatment and calcium carbonate on properties of kenaf reinforced polyester composites
description	In this research, kenaf/unsaturated polyester and kenaf fiber/CaCO₃ polyester hybrid composites were fabricated using hand lay-up method. The effect of surface treatment of kenaf and CaCO₃ on the mechanical properties, morphology, chemical structures and water absorption were studied. The Fourier Transform Infrared (FT-IR) spectroscopy was observed for untreated and treated kenaf fibers, and untreated and treated CaCO₃ particles. The untreated and treated kenaf fibers showed a very strong and broad absorption peak in the region 3200-3600cm-1 of hydrogen bonded O-H stretching vibration. However, the peaks 2918cm-1 and 2917cm-1 of the treated kenaf showed that stearic acid had successfully coated the surface of the kenaf fiber as well as 2918cm-1 in treated CaCO₃. The tensile strength of kenaf/ CaCO₃ polyester composites was found to have highest value with 6% CaCO₃ (70.1MPa) in comparison with treated kenaf fiber/unsaturated polyester composites (57.7MPa) and untreated kenaf fiber/unsaturated polyester composites (43.2MPa) at 20% fiber loading. The flexural strength and flexural modulus showed similar trend as tensile strength and tensile modulus (68.5MPa and 3741.4MPa respectively). The Scanning Electron Microscope (SEM) revealed that the surface of the treated fibers became rough after treatment due to the coated of SA onto the surface. The treatment enhances better interaction and adhesion of fiber and matrix. The results of water absorption study depicted that increasing the loading of kenaf fiber in the composites resulted in increasing water absorption, and hybrid composites attained equilibrium earlier than other composites due to the incorporation of CaCO₃ that prevent further water penetration followed by treated and untreated composites respectively.
format	Thesis
title	The effect of stearic acid treatment and calcium carbonate on properties of kenaf reinforced polyester composites
title_short	The effect of stearic acid treatment and calcium carbonate on properties of kenaf reinforced polyester composites
title_full	The effect of stearic acid treatment and calcium carbonate on properties of kenaf reinforced polyester composites
title_fullStr	The effect of stearic acid treatment and calcium carbonate on properties of kenaf reinforced polyester composites
title_full_unstemmed	The effect of stearic acid treatment and calcium carbonate on properties of kenaf reinforced polyester composites
title_sort	effect of stearic acid treatment and calcium carbonate on properties of kenaf reinforced polyester composites
granting_institution	Universiti Malaysia Perlis (UniMAP)
granting_department	School of Materials Engineering
url	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77171/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77171/2/Full%20text.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/77171/4/Olawuni%20Ashifat.pdf
_version_	1776104234658299904

The effect of stearic acid treatment and calcium carbonate on properties of kenaf reinforced polyester composites

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