Properties of cellulose hydrogel from kenaf core prepared via pre-cooled dissolving method

Hydrogels were produced from cellulose derived from kenaf core powder with weight average molecular weight of cellulose was 1.68 × 105 and was dissolved in NaOH/urea solvent at -13oC. To obtain the optimal dissolving parameters, different percentage of NaOH, urea and kenaf core cellulose was used to...

Full description

Bibliographic Details
Main Authors:	Hatika Kaco, Sarani Zakaria, Nur Fazlinda Razali, Chin, Hua Chia, Lina Zhang, Zhang, Saad Mohamad Jani
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2014
Online Access:	http://journalarticle.ukm.my/7520/ http://journalarticle.ukm.my/7520/ http://journalarticle.ukm.my/7520/1/14_Hatika_Kaco.pdf

id	ukm-7520
recordtype	eprints
spelling	ukm-75202016-12-14T06:44:21Z http://journalarticle.ukm.my/7520/ Properties of cellulose hydrogel from kenaf core prepared via pre-cooled dissolving method Hatika Kaco, Sarani Zakaria, Nur Fazlinda Razali, Chin, Hua Chia Lina Zhang, Zhang Saad Mohamad Jani, Hydrogels were produced from cellulose derived from kenaf core powder with weight average molecular weight of cellulose was 1.68 × 105 and was dissolved in NaOH/urea solvent at -13oC. To obtain the optimal dissolving parameters, different percentage of NaOH, urea and kenaf core cellulose was used to study the degree of dissolution and formation of hydrogel. From the results obtained, it was found that the ratio of 6% NaOH/4% urea and 2% cellulose produced a good hydrogel. UV-Vis spectroscopy and XRD analysis were performed to analyze the transparency and crystallinity index of the cellulose solution and hydrogel, respectively. It showed that the hydrogel with the highest degree of solubility gave highest transparency due to the reduction of cellulose crystallinity as a result of the dissolution process. XRD analysis results showed the crystallinity of cellulose from kenaf core decreased by 70% after dissolution and hydrogel formation. Samples with 4% urea possess highest water content of 73% and decreased with increasing urea content. Universiti Kebangsaan Malaysia 2014-08 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/7520/1/14_Hatika_Kaco.pdf Hatika Kaco, and Sarani Zakaria, and Nur Fazlinda Razali, and Chin, Hua Chia and Lina Zhang, Zhang and Saad Mohamad Jani, (2014) Properties of cellulose hydrogel from kenaf core prepared via pre-cooled dissolving method. Sains Malaysiana, 43 (8). pp. 1221-1229. ISSN 0126-6039 http://www.ukm.my/jsm
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	Hydrogels were produced from cellulose derived from kenaf core powder with weight average molecular weight of cellulose was 1.68 × 105 and was dissolved in NaOH/urea solvent at -13oC. To obtain the optimal dissolving parameters, different percentage of NaOH, urea and kenaf core cellulose was used to study the degree of dissolution and formation of hydrogel. From the results obtained, it was found that the ratio of 6% NaOH/4% urea and 2% cellulose produced a good hydrogel. UV-Vis spectroscopy and XRD analysis were performed to analyze the transparency and crystallinity index of the cellulose solution and hydrogel, respectively. It showed that the hydrogel with the highest degree of solubility gave highest transparency due to the reduction of cellulose crystallinity as a result of the dissolution process. XRD analysis results showed the crystallinity of cellulose from kenaf core decreased by 70% after dissolution and hydrogel formation. Samples with 4% urea possess highest water content of 73% and decreased with increasing urea content.
format	Article
author	Hatika Kaco, Sarani Zakaria, Nur Fazlinda Razali, Chin, Hua Chia Lina Zhang, Zhang Saad Mohamad Jani,
spellingShingle	Hatika Kaco, Sarani Zakaria, Nur Fazlinda Razali, Chin, Hua Chia Lina Zhang, Zhang Saad Mohamad Jani, Properties of cellulose hydrogel from kenaf core prepared via pre-cooled dissolving method
author_facet	Hatika Kaco, Sarani Zakaria, Nur Fazlinda Razali, Chin, Hua Chia Lina Zhang, Zhang Saad Mohamad Jani,
author_sort	Hatika Kaco,
title	Properties of cellulose hydrogel from kenaf core prepared via pre-cooled dissolving method
title_short	Properties of cellulose hydrogel from kenaf core prepared via pre-cooled dissolving method
title_full	Properties of cellulose hydrogel from kenaf core prepared via pre-cooled dissolving method
title_fullStr	Properties of cellulose hydrogel from kenaf core prepared via pre-cooled dissolving method
title_full_unstemmed	Properties of cellulose hydrogel from kenaf core prepared via pre-cooled dissolving method
title_sort	properties of cellulose hydrogel from kenaf core prepared via pre-cooled dissolving method
publisher	Universiti Kebangsaan Malaysia
publishDate	2014
url	http://journalarticle.ukm.my/7520/ http://journalarticle.ukm.my/7520/ http://journalarticle.ukm.my/7520/1/14_Hatika_Kaco.pdf
first_indexed	2023-09-18T19:49:56Z
last_indexed	2023-09-18T19:49:56Z
_version_	1777406151854391296

Properties of cellulose hydrogel from kenaf core prepared via pre-cooled dissolving method

Similar Items