Preparation, characterization and degradation of linear low density polyethylene/rambutan peel flour biocomposites

Nowadays, developments of plastics from biodegradable polymers and natural filler have attracted great interests in science and research. Biodegradable polymer could allow complete degradation in soil and does not emit any toxic or noxious components. Therefore, in this research, an attempt was mad...

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Format:	Thesis
Language:	English
Subjects:	Biodegradable plastics Polyethylene Biocomposites Plastics Rambutan peel
Online Access:	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72877/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72877/2/Full%20text.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72877/4/Ainatun.pdf
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spelling	my-unimap-728772023-04-04T02:07:17Z Preparation, characterization and degradation of linear low density polyethylene/rambutan peel flour biocomposites Sam Sung, Ting, Dr. Nowadays, developments of plastics from biodegradable polymers and natural filler have attracted great interests in science and research. Biodegradable polymer could allow complete degradation in soil and does not emit any toxic or noxious components. Therefore, in this research, an attempt was made by incorporating rambutan peel flour (RPF) into LLDPE matrix. This study investigated the influence of adipic acid as compatibilizer on the properties of the composites prepared from LLDPE with different RPF loading varied from 5 to 25 wt%. Cobalt stearate (CS) as a pro-oxidant (0.2 wt%) has been added into LLDPE/RPF-AA composites. Natural weathering and soil burial test were performed for 9 months’ period to determine the potential of this polymer to degrade in different surroundings. As a result, LLDPE/RPF-AA composites showed higher tensile strength and elongation at break (Eb) compared to LLDPE/RPF composites after weathering and composting exposure. However, after the addition of CS, the tensile strength and Eb of LLDPE/RPF-AA composites decreased. Scanning electron microscopy (SEM) micrographs showed the formation of cracks, pores and fungus colonization on the LLDPE/RPF composites and LLDPE/RPF-AA composites surface. For differential scanning calorimetry (DSC) analysis, LLDPE/RPF-AA composites presented higher crystallinity compared to the LLDPE/RPF composites. The thermal stability for the composites decreased from 429 °C (LLDPE) to 251 °c for 25 wt% of RPF and 262 °c for 25 wt% of RPF-AA. Universiti Malaysia Perlis (UniMAP) Thesis en http://dspace.unimap.edu.my:80/xmlui/handle/123456789/72877 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72877/3/license.txt 8a4605be74aa9ea9d79846c1fba20a33 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72877/1/Page%201-24.pdf e6d8911a637c63db3e33884cc4194af7 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72877/2/Full%20text.pdf 3b3ea6b1d27531bdff931f48e8bbdad1 http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72877/4/Ainatun.pdf c39f7de8ed82c9bb2cbcafca6fab84cd Universiti Malaysia Perlis (UniMAP) Biodegradable plastics Polyethylene Biocomposites Plastics Rambutan peel School of Bioprocess Engineering
institution	Universiti Malaysia Perlis
collection	UniMAP Institutional Repository
language	English
advisor	Sam Sung, Ting, Dr.
topic	Biodegradable plastics Polyethylene Biocomposites Plastics Rambutan peel
spellingShingle	Biodegradable plastics Polyethylene Biocomposites Plastics Rambutan peel Preparation, characterization and degradation of linear low density polyethylene/rambutan peel flour biocomposites
description	Nowadays, developments of plastics from biodegradable polymers and natural filler have attracted great interests in science and research. Biodegradable polymer could allow complete degradation in soil and does not emit any toxic or noxious components. Therefore, in this research, an attempt was made by incorporating rambutan peel flour (RPF) into LLDPE matrix. This study investigated the influence of adipic acid as compatibilizer on the properties of the composites prepared from LLDPE with different RPF loading varied from 5 to 25 wt%. Cobalt stearate (CS) as a pro-oxidant (0.2 wt%) has been added into LLDPE/RPF-AA composites. Natural weathering and soil burial test were performed for 9 months’ period to determine the potential of this polymer to degrade in different surroundings. As a result, LLDPE/RPF-AA composites showed higher tensile strength and elongation at break (Eb) compared to LLDPE/RPF composites after weathering and composting exposure. However, after the addition of CS, the tensile strength and Eb of LLDPE/RPF-AA composites decreased. Scanning electron microscopy (SEM) micrographs showed the formation of cracks, pores and fungus colonization on the LLDPE/RPF composites and LLDPE/RPF-AA composites surface. For differential scanning calorimetry (DSC) analysis, LLDPE/RPF-AA composites presented higher crystallinity compared to the LLDPE/RPF composites. The thermal stability for the composites decreased from 429 °C (LLDPE) to 251 °c for 25 wt% of RPF and 262 °c for 25 wt% of RPF-AA.
format	Thesis
title	Preparation, characterization and degradation of linear low density polyethylene/rambutan peel flour biocomposites
title_short	Preparation, characterization and degradation of linear low density polyethylene/rambutan peel flour biocomposites
title_full	Preparation, characterization and degradation of linear low density polyethylene/rambutan peel flour biocomposites
title_fullStr	Preparation, characterization and degradation of linear low density polyethylene/rambutan peel flour biocomposites
title_full_unstemmed	Preparation, characterization and degradation of linear low density polyethylene/rambutan peel flour biocomposites
title_sort	preparation, characterization and degradation of linear low density polyethylene/rambutan peel flour biocomposites
granting_institution	Universiti Malaysia Perlis (UniMAP)
granting_department	School of Bioprocess Engineering
url	http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72877/1/Page%201-24.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72877/2/Full%20text.pdf http://dspace.unimap.edu.my:80/xmlui/bitstream/123456789/72877/4/Ainatun.pdf
_version_	1776104228470652928

Preparation, characterization and degradation of linear low density polyethylene/rambutan peel flour biocomposites

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