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Effects of cobalt stearate on the properties of compatibilized low density polyethylene/ jackfruit seeds flour blends

Master of Science in Biosystem Engineering

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Bibliographic Details
Main Author: Santhiya, Peremel
Other Authors: Sam Sung, Ting, Dr.
Format: Thesis
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2016
Subjects:
Jackfruit
Jackfruit seeds flour (JSF)
Polymer
Polymer blends
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/78180
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spelling my.unimap-781802023-04-04T02:00:54Z Effects of cobalt stearate on the properties of compatibilized low density polyethylene/ jackfruit seeds flour blends Santhiya, Peremel Sam Sung, Ting, Dr. Jackfruit Jackfruit seeds flour (JSF) Polymer Polymer blends Master of Science in Biosystem Engineering The effect of adipic acid (AA) and citric acid (CA) on the tensile, morphological, and thermal properties of low-density polyethylene (LDPE)/ jackfruit seeds flour (JSF) was investigated. Initially, the LDPE was mixed with various JSF contents for I 0 minutes by using internal mixer (Brabender). The tensile properties were evaluated by using Universal Testing Machine (UTM) according to ASTM D638. The tensile strength and elongation at the break (Eb) were significantly improved by the addition of AA and CA, as evidenced by morphological analysis using scanning electron microscopy (SEM). On the other hand, the Young's modulus increased with JSF content up to 3 wt% and decreased thereafter. The crystallinity and crystallization temperatures of the blends increase with the incorporation of AA and CA, compared with uncompatibilized blends. The thermal stability of the mixture was lower with increasing JSF content. However, AA and CA had improved the thermal stability of LDPE/JSF blends. The water absorption increased with increasing amount of JSF content. The degradability of the sample had been investigated for 9 months soil burial and natural weathering test. It was found that for higher JSF content resulted in higher degradation. In the presence of compatibilizer, the interfacial adhesion was significantly improved and lower the degradation duration. Lastly, cobalt stearate (CS) had been added as prooxidantin order to accelerate the degradation process. The tensile strength and Eb of the blends with CS were more susceptible to degradation compare to the blends without CS. Meanwhile, during weathering and soil burial test, the crystallinity increased with the addition of CS in the blends. 2016 2023-03-23T02:10:14Z 2023-03-23T02:10:14Z Thesis http://dspace.unimap.edu.my:80/xmlui/handle/123456789/78180 en Universiti Malaysia Perlis (UniMAP) Universiti Malaysia Perlis (UniMAP) School of Bioprocess Engineering
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Jackfruit
Jackfruit seeds flour (JSF)
Polymer
Polymer blends
spellingShingle Jackfruit
Jackfruit seeds flour (JSF)
Polymer
Polymer blends
Santhiya, Peremel
Effects of cobalt stearate on the properties of compatibilized low density polyethylene/ jackfruit seeds flour blends
description Master of Science in Biosystem Engineering
author2 Sam Sung, Ting, Dr.
author_facet Sam Sung, Ting, Dr.
Santhiya, Peremel
format Thesis
author Santhiya, Peremel
author_sort Santhiya, Peremel
title Effects of cobalt stearate on the properties of compatibilized low density polyethylene/ jackfruit seeds flour blends
title_short Effects of cobalt stearate on the properties of compatibilized low density polyethylene/ jackfruit seeds flour blends
title_full Effects of cobalt stearate on the properties of compatibilized low density polyethylene/ jackfruit seeds flour blends
title_fullStr Effects of cobalt stearate on the properties of compatibilized low density polyethylene/ jackfruit seeds flour blends
title_full_unstemmed Effects of cobalt stearate on the properties of compatibilized low density polyethylene/ jackfruit seeds flour blends
title_sort effects of cobalt stearate on the properties of compatibilized low density polyethylene/ jackfruit seeds flour blends
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2016
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/78180
_version_ 1772813140922204160
score 13.222552

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