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Study on sensing properties of chitosan-polyethylene oxide-exfoliated graphite based toluene sensors

Master of Science in Polymer Engineering

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Bibliographic Details
Main Author: Aisha Elhadi, Ali Abosnina
Other Authors: Irwana Nainggolan, Dr.
Format: Thesis
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2017
Subjects:
Chitosan
Chitin
Polyethylene oxide
Graphite
Detectors
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77871
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spelling my.unimap-778712023-02-16T12:48:48Z Study on sensing properties of chitosan-polyethylene oxide-exfoliated graphite based toluene sensors Aisha Elhadi, Ali Abosnina Irwana Nainggolan, Dr. Chitosan Chitin Polyethylene oxide Graphite Detectors Master of Science in Polymer Engineering Chitosan was used as a material to fabricate film sensor because of its structure and properties where it consists of amino group which has free electron. In this study, chitosan was added with polyethylene oxide and exfoliated graphite to study the electrical properties toward wet air, dry air and toluene. Chitosan powder was dissolved in 2.00 v/v% of acetic acid to form chitosan solution. Then, the chitosan solution was added with polyethylene oxide and exfoliated graphite based on the ratio needed. The composition of the materials was varied and fabricated on gold plated printed circuit board by using electrical deposition technique. Chitosan/polyethylene oxide/exfoliated graphite matrix films were prepared to observe the effect of exfoliated graphite concentration on microstructure, electrical conductivity, and sensing properties of the films. The chitosan/polyethylene oxide/exfoliated graphite film was prepared with various concentration of exfoliated graphite to obtain the best concentration of exfoliated graphite to achieve the excellent properties of the films. The SEM technique was employed to analyse the micro- structure of the prepared chitosan/ polyethylene oxide / exfoliated graphite. The FT-IR was used to analyse the functional groups existence in the chitosan/polyethylene oxide/exfoliated graphite films. From the result obtained, this project successfully proved that the addition 0.4w/v % of exfoliated graphite onto chitosan/polyethylene oxide film has improved the sensing properties of the films. The chitosan/polyethylene oxide/exfoliated graphite films have better response, sensitivity and stability compare to chitosan/polyethylene oxide films. 2017 2023-02-16T12:42:05Z 2023-02-16T12:42:05Z Thesis http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77871 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 Chitosan
Chitin
Polyethylene oxide
Graphite
Detectors
spellingShingle Chitosan
Chitin
Polyethylene oxide
Graphite
Detectors
Aisha Elhadi, Ali Abosnina
Study on sensing properties of chitosan-polyethylene oxide-exfoliated graphite based toluene sensors
description Master of Science in Polymer Engineering
author2 Irwana Nainggolan, Dr.
author_facet Irwana Nainggolan, Dr.
Aisha Elhadi, Ali Abosnina
format Thesis
author Aisha Elhadi, Ali Abosnina
author_sort Aisha Elhadi, Ali Abosnina
title Study on sensing properties of chitosan-polyethylene oxide-exfoliated graphite based toluene sensors
title_short Study on sensing properties of chitosan-polyethylene oxide-exfoliated graphite based toluene sensors
title_full Study on sensing properties of chitosan-polyethylene oxide-exfoliated graphite based toluene sensors
title_fullStr Study on sensing properties of chitosan-polyethylene oxide-exfoliated graphite based toluene sensors
title_full_unstemmed Study on sensing properties of chitosan-polyethylene oxide-exfoliated graphite based toluene sensors
title_sort study on sensing properties of chitosan-polyethylene oxide-exfoliated graphite based toluene sensors
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2017
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77871
_version_ 1772813064596357120
score 13.214268

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