Cleaning And Sterilization Of Sheep Wool Fiber Using Supercritical Carbon Dioxide

Sheep wool is utilized as a textile material for clothing and high-quality fabric in the modern textile industry. Raw sheep wool contains dirt, suint and wax. Thus it requires an effective cleaning process to remove contaminants. Existing sheep wool processing requires a huge amount of fresh water a...

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Main Author:	Allafi, Faisal Aboelkasim Salem
Format:	Thesis
Language:	English
Published:	2022
Subjects:	T1-995 Technology(General)
Online Access:	http://eprints.usm.my/59688/1/24%20Pages%20from%20FAISAL%20ABOELKASIM%20SALEM%20ALLAFI%20-%20TESIS.pdf
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id	my-usm-ep.59688
record_format	uketd_dc
spelling	my-usm-ep.596882023-12-15T02:15:42Z Cleaning And Sterilization Of Sheep Wool Fiber Using Supercritical Carbon Dioxide 2022-09 Allafi, Faisal Aboelkasim Salem T1-995 Technology(General) Sheep wool is utilized as a textile material for clothing and high-quality fabric in the modern textile industry. Raw sheep wool contains dirt, suint and wax. Thus it requires an effective cleaning process to remove contaminants. Existing sheep wool processing requires a huge amount of fresh water and the addition of toxic chemicals which results in the generation of toxic effluent and wool fibre damage. Besides, contaminates with pathogenic bacteria. Therefore, it is urged for an effective technology to eliminate pathogenic microorganisms for safe handling. In this study, supercritical carbon dioxide scCO2 was used to treat sheep wool fibre as a waterless and effective alternative to existing sheep wool processing. The pathogenic bacteria in sheep wool fibre were determined using molecular identification with ribosomal ribonucleic acid 16sRNA. The influences of scCO2 sterilization and cleaning of sheep wool fibre were determined with varying pressure (10-40 MPa), temperature (32-80 oC), and treatment time (30-90 min). Subsequently, the physicochemical, thermo-mechanical properties and surface morphology of scCO2 treated and untreated fibre were determined using various analytical means. 2022-09 Thesis http://eprints.usm.my/59688/ http://eprints.usm.my/59688/1/24%20Pages%20from%20FAISAL%20ABOELKASIM%20SALEM%20ALLAFI%20-%20TESIS.pdf application/pdf en public phd doctoral Perpustakaan Hamzah Sendut Pusat Pengajian Teknologi Industri
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	T1-995 Technology(General)
spellingShingle	T1-995 Technology(General) Allafi, Faisal Aboelkasim Salem Cleaning And Sterilization Of Sheep Wool Fiber Using Supercritical Carbon Dioxide
description	Sheep wool is utilized as a textile material for clothing and high-quality fabric in the modern textile industry. Raw sheep wool contains dirt, suint and wax. Thus it requires an effective cleaning process to remove contaminants. Existing sheep wool processing requires a huge amount of fresh water and the addition of toxic chemicals which results in the generation of toxic effluent and wool fibre damage. Besides, contaminates with pathogenic bacteria. Therefore, it is urged for an effective technology to eliminate pathogenic microorganisms for safe handling. In this study, supercritical carbon dioxide scCO2 was used to treat sheep wool fibre as a waterless and effective alternative to existing sheep wool processing. The pathogenic bacteria in sheep wool fibre were determined using molecular identification with ribosomal ribonucleic acid 16sRNA. The influences of scCO2 sterilization and cleaning of sheep wool fibre were determined with varying pressure (10-40 MPa), temperature (32-80 oC), and treatment time (30-90 min). Subsequently, the physicochemical, thermo-mechanical properties and surface morphology of scCO2 treated and untreated fibre were determined using various analytical means.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Allafi, Faisal Aboelkasim Salem
author_facet	Allafi, Faisal Aboelkasim Salem
author_sort	Allafi, Faisal Aboelkasim Salem
title	Cleaning And Sterilization Of Sheep Wool Fiber Using Supercritical Carbon Dioxide
title_short	Cleaning And Sterilization Of Sheep Wool Fiber Using Supercritical Carbon Dioxide
title_full	Cleaning And Sterilization Of Sheep Wool Fiber Using Supercritical Carbon Dioxide
title_fullStr	Cleaning And Sterilization Of Sheep Wool Fiber Using Supercritical Carbon Dioxide
title_full_unstemmed	Cleaning And Sterilization Of Sheep Wool Fiber Using Supercritical Carbon Dioxide
title_sort	cleaning and sterilization of sheep wool fiber using supercritical carbon dioxide
granting_institution	Perpustakaan Hamzah Sendut
granting_department	Pusat Pengajian Teknologi Industri
publishDate	2022
url	http://eprints.usm.my/59688/1/24%20Pages%20from%20FAISAL%20ABOELKASIM%20SALEM%20ALLAFI%20-%20TESIS.pdf
_version_	1794024035430957056

Cleaning And Sterilization Of Sheep Wool Fiber Using Supercritical Carbon Dioxide

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