Synthesis and characterization of cellulose acetate from kenaf fiber

Kenaf or its scientific name Hibiscus cannabinus L. is heavily promoted by the Malaysian government as an alternative crop to replace tobacco. Its main constituent is cellulose. Cellulose can be converted to cellulose acetate. The aim of this study is to investigate the effect of pre-treatment and a...

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Main Author: Mohd. Kamil, Nurul'Ain
Format: Thesis
Published: 2009
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spelling my-utm-ep.270142017-07-03T04:58:15Z Synthesis and characterization of cellulose acetate from kenaf fiber 2009 Mohd. Kamil, Nurul'Ain TP Chemical technology Kenaf or its scientific name Hibiscus cannabinus L. is heavily promoted by the Malaysian government as an alternative crop to replace tobacco. Its main constituent is cellulose. Cellulose can be converted to cellulose acetate. The aim of this study is to investigate the effect of pre-treatment and acetylation time to cellulose acetate produced from kenaf fiber. Kenaf fiber has undergone three basic stages; pre-treatment, acetylation and characterization stages. The pre-treatment stage involved soaking the fiber in sodium hydroxide solution and refluxed the system with ethanol and nitric acid mixture. The pre-treated fiber was acetylated by acetic acid and acetic anhydride to produce cellulose acetate. The samples were characterized by DS titration and FTIR. For cellulose acetate sample produced from raw kenaf fiber at 24 and 48 hours acetylation times, the acetyl content obtained was 34.5% and 35.0% with the DS of 1.96 and 2.00 respectively. Meanwhile, for cellulose acetate sample produced from pre-treated kenaf fiber at 24 and 48 hours acetylation time, the acetyl content was 42.0% with the DS of 2.68 for the former and 41.7% acetyl content with the DS of 2.65 for the latter. Based on this study, it can be concluded that cellulose acetate can be produced successfully from kenaf fiber. Furthermore, the pre-treatment stage increased the acetyl content of the sample whereas different acetylation time did not show any effect on the acetyl content. 2009 Thesis http://eprints.utm.my/id/eprint/27014/ http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:79484?queryType=vitalDismax&query=Synthesis+and+characterization+of+cellulose+acetate+from+kenaf+fiber masters Universiti Teknologi Malaysia, Faculty of Chemical and Natural Resources Engineering Faculty of Chemical and Natural Resources Engineering
institution Universiti Teknologi Malaysia
collection UTM Institutional Repository
topic TP Chemical technology
spellingShingle TP Chemical technology
Mohd. Kamil, Nurul'Ain
Synthesis and characterization of cellulose acetate from kenaf fiber
description Kenaf or its scientific name Hibiscus cannabinus L. is heavily promoted by the Malaysian government as an alternative crop to replace tobacco. Its main constituent is cellulose. Cellulose can be converted to cellulose acetate. The aim of this study is to investigate the effect of pre-treatment and acetylation time to cellulose acetate produced from kenaf fiber. Kenaf fiber has undergone three basic stages; pre-treatment, acetylation and characterization stages. The pre-treatment stage involved soaking the fiber in sodium hydroxide solution and refluxed the system with ethanol and nitric acid mixture. The pre-treated fiber was acetylated by acetic acid and acetic anhydride to produce cellulose acetate. The samples were characterized by DS titration and FTIR. For cellulose acetate sample produced from raw kenaf fiber at 24 and 48 hours acetylation times, the acetyl content obtained was 34.5% and 35.0% with the DS of 1.96 and 2.00 respectively. Meanwhile, for cellulose acetate sample produced from pre-treated kenaf fiber at 24 and 48 hours acetylation time, the acetyl content was 42.0% with the DS of 2.68 for the former and 41.7% acetyl content with the DS of 2.65 for the latter. Based on this study, it can be concluded that cellulose acetate can be produced successfully from kenaf fiber. Furthermore, the pre-treatment stage increased the acetyl content of the sample whereas different acetylation time did not show any effect on the acetyl content.
format Thesis
qualification_level Master's degree
author Mohd. Kamil, Nurul'Ain
author_facet Mohd. Kamil, Nurul'Ain
author_sort Mohd. Kamil, Nurul'Ain
title Synthesis and characterization of cellulose acetate from kenaf fiber
title_short Synthesis and characterization of cellulose acetate from kenaf fiber
title_full Synthesis and characterization of cellulose acetate from kenaf fiber
title_fullStr Synthesis and characterization of cellulose acetate from kenaf fiber
title_full_unstemmed Synthesis and characterization of cellulose acetate from kenaf fiber
title_sort synthesis and characterization of cellulose acetate from kenaf fiber
granting_institution Universiti Teknologi Malaysia, Faculty of Chemical and Natural Resources Engineering
granting_department Faculty of Chemical and Natural Resources Engineering
publishDate 2009
_version_ 1747815566492565504