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Surface modification, characterization and properties of regenerated cellulose NYPA fructicans filled microcrystalline cellulose biocomposite films

Doctor of Philosophy in Materials Engineering. Confidential item (contains confidential information under the Official Secret Act 1972*)

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Bibliographic Details
Main Author: Vaniespree, Govindan
Other Authors: Teh, Pei Leng, Dr.
Format: Thesis
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2017
Subjects:
Microcrystalline polymers
Cellulose
Biopolymers
Nypa palm
Biodegradation
Cellulose > Biodegradation
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/78820
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spelling my.unimap-788202023-07-06T01:52:23Z Surface modification, characterization and properties of regenerated cellulose NYPA fructicans filled microcrystalline cellulose biocomposite films Vaniespree, Govindan Teh, Pei Leng, Dr. Microcrystalline polymers Cellulose Biopolymers Nypa palm Biodegradation Cellulose -- Biodegradation Doctor of Philosophy in Materials Engineering. Confidential item (contains confidential information under the Official Secret Act 1972*) The regenerated cellulose (RC) biocomposite films from nypa fruticans (NF) and microcrystalline cellulose (MCC) were prepared via solvent casting method using ionic liquid. The solvent system of N, N Dimethylacetamide (DMAc) and Lithium Chloride (LiCl) were used to dissolve cellulose at room temperature. In this study, the biocomposite films containing MCC and NF were varied from 1, 2, 3 and 4 wt%. The effect of MCC, NF content and different chemical modifications such as acrylic acid (AA), methacrylate acid (MAA), butyl methacrylate acid (BMA), maleic acid (MA), adipic acid (ADA), acetic acid (AAc) and 3-aminopropyltriethoxy silane (APTES) on the tensile properties, morphology, X- ray diffraction (XRD), thermogravimetry analysis (TGA), fourier transform infrared (FTIR), moisture content and enzymatic biodegradation of RC biocomposite films were investigated. The result showed that the RC films at 3 wt% of MCC content and NF RC biocomposite films at 3 wt% NF content had highest tensile strength, Young’s modulus and crystallinity index (CrI). The morphology study of NF RC biocomposite films indicated better dispersion of filler in matrix at 3 wt% of NF content. Meanwhile, the thermal stability of both RC films and NF RC biocomposite films increased with increasing of MCC or NF content. The moisture content and weight loss for enzymatic biodegradation of both RC films and NF RC biocomposite films increased with increasing of MCC and NF content, respectively. The chemical modifications of NF using AA, MAA, BMA, MA, ADA, AAc and APTES showed improvement in the properties of treated NF RC biocomposite films. The FTIR spectra showed the changes of functional group of treated NF RC biocomposite films. The tensile properties and crystallinity index of treated RC biocomposite films with AA, MAA, BMA, MA, ADA, AAc and APTES were higher than the untreated NF RC biocomposite films. The improvement of interfacial interaction of treated NF RC biocomposite films was proven by the SEM. Furthermore, the treated NF RC biocomposite films showed higher thermal stability compared to the untreated NF RC biocomposite films. Moreover, the moisture content and weight loss of enzymatic biodegradation of treated NF RC biocomposite films were lower than that of untreated NF RC biocomposite films. Results showed that the treated NF RC biocomposite films with AAc exhibited the highest tensile properties, thermal stability and resistance towards moisture and enzymatic attack among the others treated NF RC biocomposite films. 2017 2023-05-26T00:54:11Z 2023-05-26T00:54:11Z Thesis http://dspace.unimap.edu.my:80/xmlui/handle/123456789/78820 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 Microcrystalline polymers
Cellulose
Biopolymers
Nypa palm
Biodegradation
Cellulose -- Biodegradation
spellingShingle Microcrystalline polymers
Cellulose
Biopolymers
Nypa palm
Biodegradation
Cellulose -- Biodegradation
Vaniespree, Govindan
Surface modification, characterization and properties of regenerated cellulose NYPA fructicans filled microcrystalline cellulose biocomposite films
description Doctor of Philosophy in Materials Engineering. Confidential item (contains confidential information under the Official Secret Act 1972*)
author2 Teh, Pei Leng, Dr.
author_facet Teh, Pei Leng, Dr.
Vaniespree, Govindan
format Thesis
author Vaniespree, Govindan
author_sort Vaniespree, Govindan
title Surface modification, characterization and properties of regenerated cellulose NYPA fructicans filled microcrystalline cellulose biocomposite films
title_short Surface modification, characterization and properties of regenerated cellulose NYPA fructicans filled microcrystalline cellulose biocomposite films
title_full Surface modification, characterization and properties of regenerated cellulose NYPA fructicans filled microcrystalline cellulose biocomposite films
title_fullStr Surface modification, characterization and properties of regenerated cellulose NYPA fructicans filled microcrystalline cellulose biocomposite films
title_full_unstemmed Surface modification, characterization and properties of regenerated cellulose NYPA fructicans filled microcrystalline cellulose biocomposite films
title_sort surface modification, characterization and properties of regenerated cellulose nypa fructicans filled microcrystalline cellulose biocomposite films
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2017
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/78820
_version_ 1772813214244929536
score 13.222552

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