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Mechanical, thermal and morphological properties of poly(lactic acid)/ sugarcane bagasse fiber composites

Komposit poli(asid laktik)/gentian hampas tebu (PLA/SCBF) disediakan dengan menggunakan kaedah penyebatian leburan dan diikuti oleh pengacuanan mampatan. Minyak kacang soya terepoksida (ESO) dipilih sebagai pemplastik bagi komposit PLA/SCBF. Demi mengkaji kesan saiz gentian terhadap sifat-sifat komp...

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Main Author: Khoo, Rong Ze
Format: Thesis
Language:English
Published: 2014
Subjects:
TN263-271 Mineral deposits. Metallic ore deposits. Prospecting
TN275-325 Practical mining operations. Safety measures
Online Access:http://eprints.usm.my/32960/1/Msc_%28Mix_mode%29_Thesis_Khoo_Rong_Ze_MECHANICAL%2C_THERMAL_AND__2014_MSc_M%26ME_BSB_24.pdf
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spelling my.usm.eprints.32960 http://eprints.usm.my/32960/ Mechanical, thermal and morphological properties of poly(lactic acid)/ sugarcane bagasse fiber composites Khoo, Rong Ze TN263-271 Mineral deposits. Metallic ore deposits. Prospecting TN275-325 Practical mining operations. Safety measures Komposit poli(asid laktik)/gentian hampas tebu (PLA/SCBF) disediakan dengan menggunakan kaedah penyebatian leburan dan diikuti oleh pengacuanan mampatan. Minyak kacang soya terepoksida (ESO) dipilih sebagai pemplastik bagi komposit PLA/SCBF. Demi mengkaji kesan saiz gentian terhadap sifat-sifat komposit PLA, SCBF yang dirawat alkali (~5 mm) telah dihancurkan ke dalam bentuk serbuk dan dinamakan SCBFP (~500 μm). Sehubungan dengan itu, tiga parameter telah diselidik dalam kajian ini, iaitu kandungan SCBF (5-15 wt%), muatan ESO (5-15 phr) dan kesan SCBFP. Ujian hentaman Charpy digunakan untuk mengkaji kesan hentaman terhadap komposit PLA sementara sifat morfologi dikaji dengan menggunakan mikroskop electron penskanan pancaran medan (FESEM). Sifat terma komposit diperiksa dengan penganalisa mekanik dinamik (DMA), kalorimeter pengimbasan pembezaan (DSC) dan penganalisis thermogravimetrik (TGA). Kekuatan hentaman PLA telah dikurangkan dengan penambahan SCBF. Walau bagaimanapun, kekuatan hentaman komposit PLA/SCBF-10 telah ditingkatkan dengan kehadiran ESO disebabkan kesan pemplastikan. Poly(lactic acid)/sugarcane bagasse fiber (PLA/SCBF) composites were prepared using melt compounding followed by compression molding. Epoxidized soybean oil (ESO) was selected as plasticizer for the PLA/SCBF composites. In order to study the effect of fiber size on the properties of PLA composites, alkali treated SCBF (5 mm length) was grounded into powder form and designated as SCBFP (~500 μm). Accordingly, three parameters were investigated in this research, i.e., SCBF content (5-15 wt%), ESO loading (5-15 phr) and SCBFP effects. Impact properties of PLA composites were characterized by Charpy impact test while morphological properties were studied using field emission scanning electron microscopy (FESEM). Thermal properties of the composites were examined with dynamic mechanical analysis (DMA), differential scanning calorimetry (DSC) and thermogravimetry analysis (TGA). The impact strength of PLA was reduced by the addition of SCBF.Nevertheless, the impact strength of PLA/SCBF-10 composites was improved significantly in the presence of ESO due to the plasticization effect. DMA results showed that the addition of SCBF increased the storage modulus (E’) of PLA, and the effect is more pronounced for the one containing SCBFP. 2014 Thesis NonPeerReviewed application/pdf en http://eprints.usm.my/32960/1/Msc_%28Mix_mode%29_Thesis_Khoo_Rong_Ze_MECHANICAL%2C_THERMAL_AND__2014_MSc_M%26ME_BSB_24.pdf Khoo, Rong Ze (2014) Mechanical, thermal and morphological properties of poly(lactic acid)/ sugarcane bagasse fiber composites. Masters thesis, Universiti Sains Malaysia.
institution Universiti Sains Malaysia
building Hamzah Sendut Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Sains Malaysia
content_source USM Institutional Repository
url_provider http://eprints.usm.my/
language English
topic TN263-271 Mineral deposits. Metallic ore deposits. Prospecting
TN275-325 Practical mining operations. Safety measures
spellingShingle TN263-271 Mineral deposits. Metallic ore deposits. Prospecting
TN275-325 Practical mining operations. Safety measures
Khoo, Rong Ze
Mechanical, thermal and morphological properties of poly(lactic acid)/ sugarcane bagasse fiber composites
description Komposit poli(asid laktik)/gentian hampas tebu (PLA/SCBF) disediakan dengan menggunakan kaedah penyebatian leburan dan diikuti oleh pengacuanan mampatan. Minyak kacang soya terepoksida (ESO) dipilih sebagai pemplastik bagi komposit PLA/SCBF. Demi mengkaji kesan saiz gentian terhadap sifat-sifat komposit PLA, SCBF yang dirawat alkali (~5 mm) telah dihancurkan ke dalam bentuk serbuk dan dinamakan SCBFP (~500 μm). Sehubungan dengan itu, tiga parameter telah diselidik dalam kajian ini, iaitu kandungan SCBF (5-15 wt%), muatan ESO (5-15 phr) dan kesan SCBFP. Ujian hentaman Charpy digunakan untuk mengkaji kesan hentaman terhadap komposit PLA sementara sifat morfologi dikaji dengan menggunakan mikroskop electron penskanan pancaran medan (FESEM). Sifat terma komposit diperiksa dengan penganalisa mekanik dinamik (DMA), kalorimeter pengimbasan pembezaan (DSC) dan penganalisis thermogravimetrik (TGA). Kekuatan hentaman PLA telah dikurangkan dengan penambahan SCBF. Walau bagaimanapun, kekuatan hentaman komposit PLA/SCBF-10 telah ditingkatkan dengan kehadiran ESO disebabkan kesan pemplastikan. Poly(lactic acid)/sugarcane bagasse fiber (PLA/SCBF) composites were prepared using melt compounding followed by compression molding. Epoxidized soybean oil (ESO) was selected as plasticizer for the PLA/SCBF composites. In order to study the effect of fiber size on the properties of PLA composites, alkali treated SCBF (5 mm length) was grounded into powder form and designated as SCBFP (~500 μm). Accordingly, three parameters were investigated in this research, i.e., SCBF content (5-15 wt%), ESO loading (5-15 phr) and SCBFP effects. Impact properties of PLA composites were characterized by Charpy impact test while morphological properties were studied using field emission scanning electron microscopy (FESEM). Thermal properties of the composites were examined with dynamic mechanical analysis (DMA), differential scanning calorimetry (DSC) and thermogravimetry analysis (TGA). The impact strength of PLA was reduced by the addition of SCBF.Nevertheless, the impact strength of PLA/SCBF-10 composites was improved significantly in the presence of ESO due to the plasticization effect. DMA results showed that the addition of SCBF increased the storage modulus (E’) of PLA, and the effect is more pronounced for the one containing SCBFP.
format Thesis
author Khoo, Rong Ze
author_facet Khoo, Rong Ze
author_sort Khoo, Rong Ze
title Mechanical, thermal and morphological properties of poly(lactic acid)/ sugarcane bagasse fiber composites
title_short Mechanical, thermal and morphological properties of poly(lactic acid)/ sugarcane bagasse fiber composites
title_full Mechanical, thermal and morphological properties of poly(lactic acid)/ sugarcane bagasse fiber composites
title_fullStr Mechanical, thermal and morphological properties of poly(lactic acid)/ sugarcane bagasse fiber composites
title_full_unstemmed Mechanical, thermal and morphological properties of poly(lactic acid)/ sugarcane bagasse fiber composites
title_sort mechanical, thermal and morphological properties of poly(lactic acid)/ sugarcane bagasse fiber composites
publishDate 2014
url http://eprints.usm.my/32960/1/Msc_%28Mix_mode%29_Thesis_Khoo_Rong_Ze_MECHANICAL%2C_THERMAL_AND__2014_MSc_M%26ME_BSB_24.pdf
http://eprints.usm.my/32960/
_version_ 1681490146930720768
score 13.211869

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