Effects of Different Starch Types on the Physico-Mechanical and Morphological Properties of Low Density Polyethylene Composites

The aim of this research is to investigate the effects of different thermoplastic starches and starch contents on the physico-mechanical and morphological properties of new polymeric-based composites from low density polyethylene (LDPE) and thermoplastic starches. Different compositions of thermopla...

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Main Authors: Beg, M. D. H., Shaharuddin, Kormin, Mohd Bijarimi, Mat Piah, Haydar, U. Zaman
Format: Article
Language:English
Published: Walter de Gruyter GmbH 2015
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/6111/
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http://umpir.ump.edu.my/id/eprint/6111/
http://umpir.ump.edu.my/id/eprint/6111/1/Effects%20Of%20Different%20Starch%20Types%20On%20The%20Physico-Mechanical%20And%20Morphological%20Properties%20Of%20Low%20Density%20Polyethylene%20Composites.pdf
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spelling ump-61112018-07-16T08:09:42Z http://umpir.ump.edu.my/id/eprint/6111/ Effects of Different Starch Types on the Physico-Mechanical and Morphological Properties of Low Density Polyethylene Composites Beg, M. D. H. Shaharuddin, Kormin Mohd Bijarimi, Mat Piah Haydar, U. Zaman TP Chemical technology The aim of this research is to investigate the effects of different thermoplastic starches and starch contents on the physico-mechanical and morphological properties of new polymeric-based composites from low density polyethylene (LDPE) and thermoplastic starches. Different compositions of thermoplastic starches (5–40 wt%) and LDPE were melt blended by extrusion and injection molding. The resultant materials were characterized with respect to the following parameters, i.e., melt flow index (MFI), mechanical properties (tensile, flexural, stiffness and impact strength) and water absorption. Scanning electron microscopy (SEM) was also used in this study for evaluating blend miscibility. MFI values of all blends decreased as the starch content increased, while the sago starch formulation showed a higher MFI value than others. The incorporation of fillers into LDPE matrix resulted in an increased in tensile modulus, flexural strength, flexural modulus and slightly decreased tensile strength and impact strength. However, sago starch filled composites exhibited better mechanical properties as compared to other starches. The SEM results revealed that the miscibility of such blends is dependent on the type of starch used. The water absorption increased with immersion time and the thermoplastic sago starch samples showed the lowest percentage of water absorption compared with other thermoplastic starches. Walter de Gruyter GmbH 2015 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/6111/1/Effects%20Of%20Different%20Starch%20Types%20On%20The%20Physico-Mechanical%20And%20Morphological%20Properties%20Of%20Low%20Density%20Polyethylene%20Composites.pdf Beg, M. D. H. and Shaharuddin, Kormin and Mohd Bijarimi, Mat Piah and Haydar, U. Zaman (2015) Effects of Different Starch Types on the Physico-Mechanical and Morphological Properties of Low Density Polyethylene Composites. Journal of Polymer Engineering, 35 (8). pp. 793-804. ISSN 2191-0340 http://dx.doi.org/10.1515/polyeng-2013-0276 DOI: 10.1515/polyeng-2013-0276
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Beg, M. D. H.
Shaharuddin, Kormin
Mohd Bijarimi, Mat Piah
Haydar, U. Zaman
Effects of Different Starch Types on the Physico-Mechanical and Morphological Properties of Low Density Polyethylene Composites
description The aim of this research is to investigate the effects of different thermoplastic starches and starch contents on the physico-mechanical and morphological properties of new polymeric-based composites from low density polyethylene (LDPE) and thermoplastic starches. Different compositions of thermoplastic starches (5–40 wt%) and LDPE were melt blended by extrusion and injection molding. The resultant materials were characterized with respect to the following parameters, i.e., melt flow index (MFI), mechanical properties (tensile, flexural, stiffness and impact strength) and water absorption. Scanning electron microscopy (SEM) was also used in this study for evaluating blend miscibility. MFI values of all blends decreased as the starch content increased, while the sago starch formulation showed a higher MFI value than others. The incorporation of fillers into LDPE matrix resulted in an increased in tensile modulus, flexural strength, flexural modulus and slightly decreased tensile strength and impact strength. However, sago starch filled composites exhibited better mechanical properties as compared to other starches. The SEM results revealed that the miscibility of such blends is dependent on the type of starch used. The water absorption increased with immersion time and the thermoplastic sago starch samples showed the lowest percentage of water absorption compared with other thermoplastic starches.
format Article
author Beg, M. D. H.
Shaharuddin, Kormin
Mohd Bijarimi, Mat Piah
Haydar, U. Zaman
author_facet Beg, M. D. H.
Shaharuddin, Kormin
Mohd Bijarimi, Mat Piah
Haydar, U. Zaman
author_sort Beg, M. D. H.
title Effects of Different Starch Types on the Physico-Mechanical and Morphological Properties of Low Density Polyethylene Composites
title_short Effects of Different Starch Types on the Physico-Mechanical and Morphological Properties of Low Density Polyethylene Composites
title_full Effects of Different Starch Types on the Physico-Mechanical and Morphological Properties of Low Density Polyethylene Composites
title_fullStr Effects of Different Starch Types on the Physico-Mechanical and Morphological Properties of Low Density Polyethylene Composites
title_full_unstemmed Effects of Different Starch Types on the Physico-Mechanical and Morphological Properties of Low Density Polyethylene Composites
title_sort effects of different starch types on the physico-mechanical and morphological properties of low density polyethylene composites
publisher Walter de Gruyter GmbH
publishDate 2015
url http://umpir.ump.edu.my/id/eprint/6111/
http://umpir.ump.edu.my/id/eprint/6111/
http://umpir.ump.edu.my/id/eprint/6111/
http://umpir.ump.edu.my/id/eprint/6111/1/Effects%20Of%20Different%20Starch%20Types%20On%20The%20Physico-Mechanical%20And%20Morphological%20Properties%20Of%20Low%20Density%20Polyethylene%20Composites.pdf
first_indexed 2023-09-18T22:01:35Z
last_indexed 2023-09-18T22:01:35Z
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