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The effect of filler content and chemical modification on properties of polylactic acid/recycled low density polyethylene/nypa fruticans husk biocomposites

Doctor of Philosophy in Materials Engineering

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Bibliographic Details
Main Author: Mohamad Syahmie, Mohamad Rasidi
Other Authors: Salmah, Husseinsyah, Assoc. Prof. Ir. Dr.
Format: Thesis
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2015
Subjects:
Composite materials
Protein
Fillers (Materials)
Polyethylene
Polylactic acid
Nypa palm
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77207
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spelling my.unimap-772072022-11-25T01:36:41Z The effect of filler content and chemical modification on properties of polylactic acid/recycled low density polyethylene/nypa fruticans husk biocomposites Mohamad Syahmie, Mohamad Rasidi Salmah, Husseinsyah, Assoc. Prof. Ir. Dr. Composite materials Protein Fillers (Materials) Polyethylene Polylactic acid Nypa palm Doctor of Philosophy in Materials Engineering Nypa fruticans husk (NFH) filled polylactic acid (PLA)/recycled low density polyethylene (rLDPE) biocomposites had been prepared using Brabender Plasticoder EC PLUS at temperature 180˚C and rotor speed 50 rpm. The effect of NFH content and different types of chemical modifications on tensile properties, morphology, thermal properties and biodegradation of PLA/rLDPE/NFH biocomposites were studied. The various types of chemical modifications such as Polyethylene grafted maleic anhydride (PEMA), 3-Aminopropyltriethoxysilane (3-APE), Methyl methacrylate acid (MMA), Ethylenediaminetetraacetic acid disodium salt-2-hydrate (EDTA), and enzyme were used, respectively. The results showed that the addition of NFH reduced the tensile strength, elongation at break and degree of crystallinity (Xc), whereas the Young‘s modulus and thermal stability of biocomposites increased. The effects of α-amylase on the enzyme biodegradation of PLA/rLDPE/NFH biocomposites showed that the increased of NFH content has increased the biodegradation rate of the biocomposites. The morphology tensile fracture surface of PLA/rLDPE/NFH biocomposites indicates that poor interaction occurred between NFH and PLA/rLDPE matrix. The chemical modifications of NFH resulted positive effect on tensile and thermal properties of PLA/rLDPE/NFH biocomposites. The presence of PEMA, 3-APE, MMA, EDTA, EDTA/Enzyme and 3-APE/Enzyme have increased the tensile strength, Young‘s modulus, degree of crystallinity and thermal stability of biocomposites, whereas the elongation at break decreased. The treated PLA/rLDPE/NFH biocomposites with 3-APE/Enzyme have highest tensile strength, Young‘s modulus, and thermal stability compared to other chemical modifications of biocomposites. However, PLA/rLDPE/NFH biocomposites treated with MMA has highest degree of crystallinity. Meanwhile PLA/rLDPE/NFH biocomposites treated with EDTA exhibited highest rate of biodegradation. The better interfacial interaction between treated NFH and PLA/rLDPE matrix was proven by SEM study. The spectra FTIR indicated that the changes of functional group of treated biocomposites. 2015 2022-11-25T01:34:11Z 2022-11-25T01:34:11Z Thesis http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77207 en Universiti Malaysia Perlis (UniMAP) Universiti Malaysia Perlis (UniMAP) School of Materials 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 Composite materials
Protein
Fillers (Materials)
Polyethylene
Polylactic acid
Nypa palm
spellingShingle Composite materials
Protein
Fillers (Materials)
Polyethylene
Polylactic acid
Nypa palm
Mohamad Syahmie, Mohamad Rasidi
The effect of filler content and chemical modification on properties of polylactic acid/recycled low density polyethylene/nypa fruticans husk biocomposites
description Doctor of Philosophy in Materials Engineering
author2 Salmah, Husseinsyah, Assoc. Prof. Ir. Dr.
author_facet Salmah, Husseinsyah, Assoc. Prof. Ir. Dr.
Mohamad Syahmie, Mohamad Rasidi
format Thesis
author Mohamad Syahmie, Mohamad Rasidi
author_sort Mohamad Syahmie, Mohamad Rasidi
title The effect of filler content and chemical modification on properties of polylactic acid/recycled low density polyethylene/nypa fruticans husk biocomposites
title_short The effect of filler content and chemical modification on properties of polylactic acid/recycled low density polyethylene/nypa fruticans husk biocomposites
title_full The effect of filler content and chemical modification on properties of polylactic acid/recycled low density polyethylene/nypa fruticans husk biocomposites
title_fullStr The effect of filler content and chemical modification on properties of polylactic acid/recycled low density polyethylene/nypa fruticans husk biocomposites
title_full_unstemmed The effect of filler content and chemical modification on properties of polylactic acid/recycled low density polyethylene/nypa fruticans husk biocomposites
title_sort effect of filler content and chemical modification on properties of polylactic acid/recycled low density polyethylene/nypa fruticans husk biocomposites
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2015
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77207
_version_ 1753972994941648896
score 13.214268

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