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Mechanical and thermal properties of Montmorillonite filled newspaper fiber reinforced recycled polyethylene terephthalate nanocomposites

The feasibility of developing a newspaper fiber (NPF) reinforced poly (ethylene terephthalate) nanocomposites containing organically modified montmorillonite (MMT) was investigated. The nanocomposites were prepared using a counter-rotating twin-screw extruder followed by injection molding. The mecha...

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Main Author: Madadi Ardekani, Sara
Format: Thesis
Language:English
Published: 2012
Subjects:
T Technology (General)
Online Access:http://eprints.utm.my/id/eprint/32268/1/SaraMadadiArdekaniMFKK2012.pdf
http://eprints.utm.my/id/eprint/32268/
http://dms.library.utm.my:8080/vital/access/manager/Repository?query=Mechanical+and+thermal+properties+of+Montmorillonite+filled+newspaper+fiber+reinforced+recycled+polyethylene+terephthalate+nanocomposites&queryType=vitalDismax&public=true
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spelling my.utm.322682017-07-12T08:15:08Z http://eprints.utm.my/id/eprint/32268/ Mechanical and thermal properties of Montmorillonite filled newspaper fiber reinforced recycled polyethylene terephthalate nanocomposites Madadi Ardekani, Sara T Technology (General) The feasibility of developing a newspaper fiber (NPF) reinforced poly (ethylene terephthalate) nanocomposites containing organically modified montmorillonite (MMT) was investigated. The nanocomposites were prepared using a counter-rotating twin-screw extruder followed by injection molding. The mechanical properties of the nanocomposites were studied through tensile, flexural and impact testing. The thermal characteristics of the composites were evaluated through thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The morphological behavior of the samples was observed via scanning electron microscopy (SEM). The composites were prepared by using 5 to 15 wt% of NPF as reinforcing elements along with 10 phr of SEBS-g-MA as compatibilizer. The results showed that blending PETr with SEBS-g-MA increased the toughness of the recycled resin and significant improvements in the impact strength of the blend were observed. The incorporation of NPF increased both tensile and flexural moduli of the composites but lowered the impact strength. According to DSC data, the inclusion of NPF increased the degree of crystallinity of the composites, which point to the fact that NPF could act as nucleating agent. The TGA curve revealed that NPF addition lowered the thermal stability of the composites. Micro images taken from the surface of the broken specimen showed poor interfacial adhesion between the fibers and the matrix due to the differences in the hydrophobic\hydrophilic nature of the components. Incorporation of MMT resulted in momentous improvements in both Young’s and flexural moduli of the nanocomposites at the expense of impact strength of the samples. Significant increase observed in the flexural modulus from 2368 MPa to 3484 MPa for composites with 10 wt% of NPF and nanocomposites incorporating 5 phr of nanoclay respectively. The presence of MMT was shown to have influence on the crystallization behavior of the nanocomposites and decreased the onset crystallization temperature as well as melting temperature (Tm). The thermal stability of the nanocomposites showed improvements upon the incorporation of nanoclay. Overall, the properties point to a product with enhanced mechanical properties as compared to PETr with the potential to be used in wood replacement applications. 2012 Thesis NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/32268/1/SaraMadadiArdekaniMFKK2012.pdf Madadi Ardekani, Sara (2012) Mechanical and thermal properties of Montmorillonite filled newspaper fiber reinforced recycled polyethylene terephthalate nanocomposites. Masters thesis, Universiti Teknologi Malaysia, Faculty of Chemical Engineering. http://dms.library.utm.my:8080/vital/access/manager/Repository?query=Mechanical+and+thermal+properties+of+Montmorillonite+filled+newspaper+fiber+reinforced+recycled+polyethylene+terephthalate+nanocomposites&queryType=vitalDismax&public=true
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic T Technology (General)
spellingShingle T Technology (General)
Madadi Ardekani, Sara
Mechanical and thermal properties of Montmorillonite filled newspaper fiber reinforced recycled polyethylene terephthalate nanocomposites
description The feasibility of developing a newspaper fiber (NPF) reinforced poly (ethylene terephthalate) nanocomposites containing organically modified montmorillonite (MMT) was investigated. The nanocomposites were prepared using a counter-rotating twin-screw extruder followed by injection molding. The mechanical properties of the nanocomposites were studied through tensile, flexural and impact testing. The thermal characteristics of the composites were evaluated through thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC). The morphological behavior of the samples was observed via scanning electron microscopy (SEM). The composites were prepared by using 5 to 15 wt% of NPF as reinforcing elements along with 10 phr of SEBS-g-MA as compatibilizer. The results showed that blending PETr with SEBS-g-MA increased the toughness of the recycled resin and significant improvements in the impact strength of the blend were observed. The incorporation of NPF increased both tensile and flexural moduli of the composites but lowered the impact strength. According to DSC data, the inclusion of NPF increased the degree of crystallinity of the composites, which point to the fact that NPF could act as nucleating agent. The TGA curve revealed that NPF addition lowered the thermal stability of the composites. Micro images taken from the surface of the broken specimen showed poor interfacial adhesion between the fibers and the matrix due to the differences in the hydrophobic\hydrophilic nature of the components. Incorporation of MMT resulted in momentous improvements in both Young’s and flexural moduli of the nanocomposites at the expense of impact strength of the samples. Significant increase observed in the flexural modulus from 2368 MPa to 3484 MPa for composites with 10 wt% of NPF and nanocomposites incorporating 5 phr of nanoclay respectively. The presence of MMT was shown to have influence on the crystallization behavior of the nanocomposites and decreased the onset crystallization temperature as well as melting temperature (Tm). The thermal stability of the nanocomposites showed improvements upon the incorporation of nanoclay. Overall, the properties point to a product with enhanced mechanical properties as compared to PETr with the potential to be used in wood replacement applications.
format Thesis
author Madadi Ardekani, Sara
author_facet Madadi Ardekani, Sara
author_sort Madadi Ardekani, Sara
title Mechanical and thermal properties of Montmorillonite filled newspaper fiber reinforced recycled polyethylene terephthalate nanocomposites
title_short Mechanical and thermal properties of Montmorillonite filled newspaper fiber reinforced recycled polyethylene terephthalate nanocomposites
title_full Mechanical and thermal properties of Montmorillonite filled newspaper fiber reinforced recycled polyethylene terephthalate nanocomposites
title_fullStr Mechanical and thermal properties of Montmorillonite filled newspaper fiber reinforced recycled polyethylene terephthalate nanocomposites
title_full_unstemmed Mechanical and thermal properties of Montmorillonite filled newspaper fiber reinforced recycled polyethylene terephthalate nanocomposites
title_sort mechanical and thermal properties of montmorillonite filled newspaper fiber reinforced recycled polyethylene terephthalate nanocomposites
publishDate 2012
url http://eprints.utm.my/id/eprint/32268/1/SaraMadadiArdekaniMFKK2012.pdf
http://eprints.utm.my/id/eprint/32268/
http://dms.library.utm.my:8080/vital/access/manager/Repository?query=Mechanical+and+thermal+properties+of+Montmorillonite+filled+newspaper+fiber+reinforced+recycled+polyethylene+terephthalate+nanocomposites&queryType=vitalDismax&public=true
_version_ 1643648990121558016
score 13.211869

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