Tensile and thermal properties of coconut shell powder filled polylactic acid biocomposites

In this research the effect of coconut shell powder (CSP) content and chemical modification on mechanical properties, morphology and thermal properties of polylactic acid (PLA)/CSP biocomposites were studied. Coconut shell powder filled polylactic acid biocomposites was prepared using Brabender Plas...

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Main Author:	Koay, Seong Chun
Format:	Thesis
Language:	English
Subjects:	Coconut shell powder (CSP) Composite materials Biocomposites Polymer biocomposites Filler Polylactic acid (PLA)/CSP biocomposites
Online Access:	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/31221/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/31221/2/Full%20text.pdf
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id	my-unimap-31221
record_format	uketd_dc
spelling	my-unimap-312212014-01-15T08:36:35Z Tensile and thermal properties of coconut shell powder filled polylactic acid biocomposites Koay, Seong Chun In this research the effect of coconut shell powder (CSP) content and chemical modification on mechanical properties, morphology and thermal properties of polylactic acid (PLA)/CSP biocomposites were studied. Coconut shell powder filled polylactic acid biocomposites was prepared using Brabender Plastrograph EC PLUS mixer at temperature 180oC and rotor speed 50 rpm. The results show that the increasing of CSP content has decreased the tensile strength and elongation at break but increased the modulus of elasticity of PLA/CSP biocomposites. The addition of CSP at 30 php has increased the glass transition temperature (Tg) and crystallinity (Xc) biocomposites. The decomposition temperature of maximum (Tdmax) of PLA/CSP biocomposites was raised with increasing of CSP content. The higher CSP content exhibited better thermal stability. The SEM study was proven that poor interfacial interaction between hydrophilic CSP and hydrophobic PLA. The different types of chemical modification such as acrylic acid (AA), maleic acid (MA) and 3-aminopropyl triethoylsilane (3-APE) were investigated. The treated biocomposites with AA, MA, and 3-APE have higher tensile strength and modulus of elasticity except elongation at break lower compared to untreated biocomposites. The chemical modification enhanced the Tg, Xc and thermal stability of treated biocomposites. The FTIR analysis show the chemical modification of CSP was reduced the hydroxyl group of CSP. The better interfacial interaction between CSP and PLA was proof by SEM study. Universiti Malaysia Perlis (UniMAP) 2012 Thesis en http://dspace.unimap.edu.my:80/dspace/handle/123456789/31221 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/31221/1/Page%201-24.pdf d3527fafd1171e99cea03c79a5f2e48d http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/31221/2/Full%20text.pdf e4f37fcf5665f6c453c66142c9cba10b http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/31221/3/license.txt 8a4605be74aa9ea9d79846c1fba20a33 Coconut shell powder (CSP) Composite materials Biocomposites Polymer biocomposites Filler Polylactic acid (PLA)/CSP biocomposites School of Materials Engineering
institution	Universiti Malaysia Perlis
collection	UniMAP Institutional Repository
language	English
topic	Coconut shell powder (CSP) Composite materials Biocomposites Polymer biocomposites Filler Polylactic acid (PLA)/CSP biocomposites
spellingShingle	Coconut shell powder (CSP) Composite materials Biocomposites Polymer biocomposites Filler Polylactic acid (PLA)/CSP biocomposites Koay, Seong Chun Tensile and thermal properties of coconut shell powder filled polylactic acid biocomposites
description	In this research the effect of coconut shell powder (CSP) content and chemical modification on mechanical properties, morphology and thermal properties of polylactic acid (PLA)/CSP biocomposites were studied. Coconut shell powder filled polylactic acid biocomposites was prepared using Brabender Plastrograph EC PLUS mixer at temperature 180oC and rotor speed 50 rpm. The results show that the increasing of CSP content has decreased the tensile strength and elongation at break but increased the modulus of elasticity of PLA/CSP biocomposites. The addition of CSP at 30 php has increased the glass transition temperature (Tg) and crystallinity (Xc) biocomposites. The decomposition temperature of maximum (Tdmax) of PLA/CSP biocomposites was raised with increasing of CSP content. The higher CSP content exhibited better thermal stability. The SEM study was proven that poor interfacial interaction between hydrophilic CSP and hydrophobic PLA. The different types of chemical modification such as acrylic acid (AA), maleic acid (MA) and 3-aminopropyl triethoylsilane (3-APE) were investigated. The treated biocomposites with AA, MA, and 3-APE have higher tensile strength and modulus of elasticity except elongation at break lower compared to untreated biocomposites. The chemical modification enhanced the Tg, Xc and thermal stability of treated biocomposites. The FTIR analysis show the chemical modification of CSP was reduced the hydroxyl group of CSP. The better interfacial interaction between CSP and PLA was proof by SEM study.
format	Thesis
author	Koay, Seong Chun
author_facet	Koay, Seong Chun
author_sort	Koay, Seong Chun
title	Tensile and thermal properties of coconut shell powder filled polylactic acid biocomposites
title_short	Tensile and thermal properties of coconut shell powder filled polylactic acid biocomposites
title_full	Tensile and thermal properties of coconut shell powder filled polylactic acid biocomposites
title_fullStr	Tensile and thermal properties of coconut shell powder filled polylactic acid biocomposites
title_full_unstemmed	Tensile and thermal properties of coconut shell powder filled polylactic acid biocomposites
title_sort	tensile and thermal properties of coconut shell powder filled polylactic acid biocomposites
granting_institution	Universiti Malaysia Perlis (UniMAP)
granting_department	School of Materials Engineering
url	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/31221/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/31221/2/Full%20text.pdf
_version_	1747836785739694080

Tensile and thermal properties of coconut shell powder filled polylactic acid biocomposites

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