Fabrication and mechanical properties of cellulose nanofiber reinforced polyvinyl alcohol composites

Focus on green materials is increasing due to problems associated with environment especially for plastic materials that are non-biodegradable, toxic and containing harmful chemicals. Polyvinyl alcohol (PVA) is a biodegradable, polymer material with excellent mechanical properties, non–toxic and go...

Full description

Saved in:
Bibliographic Details
Main Author: Nadzrin Ahmed, Bin Fasihuddin
Format: Final Year Project Report
Language:English
English
Published: Universiti Malaysia Sarawak (UNIMAS) 2017
Subjects:
Online Access:http://ir.unimas.my/id/eprint/25649/1/nadzrin%2024.pdf
http://ir.unimas.my/id/eprint/25649/4/Nadzrin%20Ahmed.pdf
http://ir.unimas.my/id/eprint/25649/
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.unimas.ir.25649
record_format eprints
spelling my.unimas.ir.256492024-02-06T07:19:47Z http://ir.unimas.my/id/eprint/25649/ Fabrication and mechanical properties of cellulose nanofiber reinforced polyvinyl alcohol composites Nadzrin Ahmed, Bin Fasihuddin TJ Mechanical engineering and machinery Focus on green materials is increasing due to problems associated with environment especially for plastic materials that are non-biodegradable, toxic and containing harmful chemicals. Polyvinyl alcohol (PVA) is a biodegradable, polymer material with excellent mechanical properties, non–toxic and good film-forming ability. Cellulose nanofiber (CNF) is a natural polymer which has a potential as reinforcement material with PVA as CNF showing good mechanical properties, organic and abundant in nature. In this research, the mechanical properties of PVA films, CNF sheets and CNF/PVA composite sheets has been conducted to evaluate the reinforcement effect with different CNF content of 40 wt%, 50 wt%, 60 wt% and 70 wt%. Also, the effect of heat treatment on mechanical properties of the specimens was studied. At increasing CNF content, the tensile strength and Young’s modulus increased up to 217.1% and 109.1% respectively compared to pure PVA films and CNF sheets. Tensile strength and Young’s modulus for heat treated specimens also has shown significant increase up to 75.7% and 13.4% compared to untreated specimens. Increase in CNF content yields higher density CNF/PVA composite sheets. Based on water swelling test, it was observed that as the CNF content increased, the CNF/PVA composite film to be more hydrophobic as less water being absorb. SEM observation showed good compatibility of CNF and PVA resin which contribute to increase in tensile strength of the composite specimens compared to pure PVA film. Increase of CNF content and heat treatment has improved mechanical properties of PVA resin which enables wider range of application. Universiti Malaysia Sarawak (UNIMAS) 2017 Final Year Project Report NonPeerReviewed text en http://ir.unimas.my/id/eprint/25649/1/nadzrin%2024.pdf text en http://ir.unimas.my/id/eprint/25649/4/Nadzrin%20Ahmed.pdf Nadzrin Ahmed, Bin Fasihuddin (2017) Fabrication and mechanical properties of cellulose nanofiber reinforced polyvinyl alcohol composites. [Final Year Project Report] (Unpublished)
institution Universiti Malaysia Sarawak
building Centre for Academic Information Services (CAIS)
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sarawak
content_source UNIMAS Institutional Repository
url_provider http://ir.unimas.my/
language English
English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Nadzrin Ahmed, Bin Fasihuddin
Fabrication and mechanical properties of cellulose nanofiber reinforced polyvinyl alcohol composites
description Focus on green materials is increasing due to problems associated with environment especially for plastic materials that are non-biodegradable, toxic and containing harmful chemicals. Polyvinyl alcohol (PVA) is a biodegradable, polymer material with excellent mechanical properties, non–toxic and good film-forming ability. Cellulose nanofiber (CNF) is a natural polymer which has a potential as reinforcement material with PVA as CNF showing good mechanical properties, organic and abundant in nature. In this research, the mechanical properties of PVA films, CNF sheets and CNF/PVA composite sheets has been conducted to evaluate the reinforcement effect with different CNF content of 40 wt%, 50 wt%, 60 wt% and 70 wt%. Also, the effect of heat treatment on mechanical properties of the specimens was studied. At increasing CNF content, the tensile strength and Young’s modulus increased up to 217.1% and 109.1% respectively compared to pure PVA films and CNF sheets. Tensile strength and Young’s modulus for heat treated specimens also has shown significant increase up to 75.7% and 13.4% compared to untreated specimens. Increase in CNF content yields higher density CNF/PVA composite sheets. Based on water swelling test, it was observed that as the CNF content increased, the CNF/PVA composite film to be more hydrophobic as less water being absorb. SEM observation showed good compatibility of CNF and PVA resin which contribute to increase in tensile strength of the composite specimens compared to pure PVA film. Increase of CNF content and heat treatment has improved mechanical properties of PVA resin which enables wider range of application.
format Final Year Project Report
author Nadzrin Ahmed, Bin Fasihuddin
author_facet Nadzrin Ahmed, Bin Fasihuddin
author_sort Nadzrin Ahmed, Bin Fasihuddin
title Fabrication and mechanical properties of cellulose nanofiber reinforced polyvinyl alcohol composites
title_short Fabrication and mechanical properties of cellulose nanofiber reinforced polyvinyl alcohol composites
title_full Fabrication and mechanical properties of cellulose nanofiber reinforced polyvinyl alcohol composites
title_fullStr Fabrication and mechanical properties of cellulose nanofiber reinforced polyvinyl alcohol composites
title_full_unstemmed Fabrication and mechanical properties of cellulose nanofiber reinforced polyvinyl alcohol composites
title_sort fabrication and mechanical properties of cellulose nanofiber reinforced polyvinyl alcohol composites
publisher Universiti Malaysia Sarawak (UNIMAS)
publishDate 2017
url http://ir.unimas.my/id/eprint/25649/1/nadzrin%2024.pdf
http://ir.unimas.my/id/eprint/25649/4/Nadzrin%20Ahmed.pdf
http://ir.unimas.my/id/eprint/25649/
_version_ 1792160636360196096
score 13.209306