Polylactic acid/thermoplastic starch/montmorillonite nanocomposite : morphological, tensile properties, water absortion and degradation behavior

Polylactic acid/thermoplastic starch/montmorillonite nanocomposite : morphological, tensile properties, water absortion and degradation behavior

Polylactic acid/ Tapioca starch/ Montmorillonite nanocomposites were prepared with different loadings of nanoclay (MMT) via twin screw extruder then compressed into plates for using in various tests. The effects of different loadings of MMT on mechanical, thermal, morphological properties, water abs...

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Main Author: Jalalvandi, Esmat
Format: Thesis
Language:English
Published: 2012
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/32438/5/EsmatJalalvandiMFKK2012.pdf
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spelling my-utm-ep.324382017-09-25T07:31:24Z Polylactic acid/thermoplastic starch/montmorillonite nanocomposite : morphological, tensile properties, water absortion and degradation behavior 2012-06 Jalalvandi, Esmat TP Chemical technology Polylactic acid/ Tapioca starch/ Montmorillonite nanocomposites were prepared with different loadings of nanoclay (MMT) via twin screw extruder then compressed into plates for using in various tests. The effects of different loadings of MMT on mechanical, thermal, morphological properties, water absorption and biodegradation behavior of nancocomposites were investigated. Tensile properties were studied as some mechanical properties through this research. The thermal properties were characterized by using differential scanning calorimeter (DSC). Morphological properties of nanocomposites were studied through field emission scanning electron microscope (FESEM) and x-ray diffraction (XRD). Tensile strength increased by increasing the percentage of MMT in polymer matrix. Optimum amount for Young’s modulus and percentage of elongation at break were determined among the five samples and these results are in fine agreement with XRD results that prove the intercalated and exfoliated structure of nanocomposites. The results of DSC showed that MMT increased melting temperature and crystallization temperature of matrix but reduction in glass transition temperature was observed. During the water absorption test, amount of water intake decreased by increasing the content of MMT in nanocomposite structure. Biodegradation study exhibited that incorporation of this type of nanoclay has growing effect on degradation rate of nanocomposites. 2012-06 Thesis http://eprints.utm.my/id/eprint/32438/ http://eprints.utm.my/id/eprint/32438/5/EsmatJalalvandiMFKK2012.pdf application/pdf en public masters Universiti Teknologi Malaysia, Faculty of Chemical Engineering dan Kejuruteraan Sumber Asli Faculty of Chemical Engineering dan Kejuruteraan Sumber Asli
institution Universiti Teknologi Malaysia
collection UTM Institutional Repository
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Jalalvandi, Esmat
Polylactic acid/thermoplastic starch/montmorillonite nanocomposite : morphological, tensile properties, water absortion and degradation behavior
description Polylactic acid/ Tapioca starch/ Montmorillonite nanocomposites were prepared with different loadings of nanoclay (MMT) via twin screw extruder then compressed into plates for using in various tests. The effects of different loadings of MMT on mechanical, thermal, morphological properties, water absorption and biodegradation behavior of nancocomposites were investigated. Tensile properties were studied as some mechanical properties through this research. The thermal properties were characterized by using differential scanning calorimeter (DSC). Morphological properties of nanocomposites were studied through field emission scanning electron microscope (FESEM) and x-ray diffraction (XRD). Tensile strength increased by increasing the percentage of MMT in polymer matrix. Optimum amount for Young’s modulus and percentage of elongation at break were determined among the five samples and these results are in fine agreement with XRD results that prove the intercalated and exfoliated structure of nanocomposites. The results of DSC showed that MMT increased melting temperature and crystallization temperature of matrix but reduction in glass transition temperature was observed. During the water absorption test, amount of water intake decreased by increasing the content of MMT in nanocomposite structure. Biodegradation study exhibited that incorporation of this type of nanoclay has growing effect on degradation rate of nanocomposites.
format Thesis
qualification_level Master's degree
author Jalalvandi, Esmat
author_facet Jalalvandi, Esmat
author_sort Jalalvandi, Esmat
title Polylactic acid/thermoplastic starch/montmorillonite nanocomposite : morphological, tensile properties, water absortion and degradation behavior
title_short Polylactic acid/thermoplastic starch/montmorillonite nanocomposite : morphological, tensile properties, water absortion and degradation behavior
title_full Polylactic acid/thermoplastic starch/montmorillonite nanocomposite : morphological, tensile properties, water absortion and degradation behavior
title_fullStr Polylactic acid/thermoplastic starch/montmorillonite nanocomposite : morphological, tensile properties, water absortion and degradation behavior
title_full_unstemmed Polylactic acid/thermoplastic starch/montmorillonite nanocomposite : morphological, tensile properties, water absortion and degradation behavior
title_sort polylactic acid/thermoplastic starch/montmorillonite nanocomposite : morphological, tensile properties, water absortion and degradation behavior
granting_institution Universiti Teknologi Malaysia, Faculty of Chemical Engineering dan Kejuruteraan Sumber Asli
granting_department Faculty of Chemical Engineering dan Kejuruteraan Sumber Asli
publishDate 2012
url http://eprints.utm.my/id/eprint/32438/5/EsmatJalalvandiMFKK2012.pdf
_version_ 1747816002553380864

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