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Preparation and swelling study of CMC hydrogel as potential superabsorbent

Carboxymethylcellulose (CMC) is a water-soluble polymer, which is widely used in various fields such as food additives, textiles, pharmaceuticals and cosmetics. In this study, hydrogel was prepared from CMC by using calcium chloride as a crosslinking agent. Optimization of the reaction was done thro...

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Main Authors: Che Nan, Nur Fitrah, Zainuddin, Norhazlin, Ahmad @ Ayob, Mansor
Format: Article
Language:English
Published: Universiti Putra Malaysia Press 2019
Online Access:http://psasir.upm.edu.my/id/eprint/67245/1/28%20JST-1018-2017.pdf
http://psasir.upm.edu.my/id/eprint/67245/
http://www.pertanika.upm.edu.my/Pertanika%20PAPERS/JST%20Vol.%2027%20(1)%20Jan.%202019/28%20JST-1018-2017.pdf
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spelling my.upm.eprints.672452019-03-08T06:27:59Z http://psasir.upm.edu.my/id/eprint/67245/ Preparation and swelling study of CMC hydrogel as potential superabsorbent Che Nan, Nur Fitrah Zainuddin, Norhazlin Ahmad @ Ayob, Mansor Carboxymethylcellulose (CMC) is a water-soluble polymer, which is widely used in various fields such as food additives, textiles, pharmaceuticals and cosmetics. In this study, hydrogel was prepared from CMC by using calcium chloride as a crosslinking agent. Optimization of the reaction was done through investigation of four different parameters which had different percentage of CMC (w/v), percentage of calcium chloride (w/v), reaction time and temperature. The gel content and swelling properties of the CMC hydrogel were studied. The highest gel content was 85.33% at 7% of CMC (w/v) with 2% of calcium chloride (w/v) in 24 hours reaction time at room temperature. The gel content increased with the increasing concentration of CMC and CaCl2. This was due to the higher number of functional groups of COO- that were available in more concentrated CMC which could crosslink with CaCl2 to give higher gel content. Increasing the percentage of CaCl2 will increase the electrostatic attraction between anionic charges of polymer chains and multivalent cation (Ca2+) that leads to increase in ionic crosslinking of CMC. The swelling properties of CMC hydrogel showed that the optimum degree of swelling was 45.33 (g/g). The swelling capacity of the hydrogel in water decreased with the increase of the gel content of CMC hydrogel. This could be due to the increase in the degree of crosslinking of the CMC hydrogel. Universiti Putra Malaysia Press 2019 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/67245/1/28%20JST-1018-2017.pdf Che Nan, Nur Fitrah and Zainuddin, Norhazlin and Ahmad @ Ayob, Mansor (2019) Preparation and swelling study of CMC hydrogel as potential superabsorbent. Pertanika Journal of Science & Technology, 27 (1). pp. 489-498. ISSN 0128-7680; ESSN: 2231-8526 http://www.pertanika.upm.edu.my/Pertanika%20PAPERS/JST%20Vol.%2027%20(1)%20Jan.%202019/28%20JST-1018-2017.pdf
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Carboxymethylcellulose (CMC) is a water-soluble polymer, which is widely used in various fields such as food additives, textiles, pharmaceuticals and cosmetics. In this study, hydrogel was prepared from CMC by using calcium chloride as a crosslinking agent. Optimization of the reaction was done through investigation of four different parameters which had different percentage of CMC (w/v), percentage of calcium chloride (w/v), reaction time and temperature. The gel content and swelling properties of the CMC hydrogel were studied. The highest gel content was 85.33% at 7% of CMC (w/v) with 2% of calcium chloride (w/v) in 24 hours reaction time at room temperature. The gel content increased with the increasing concentration of CMC and CaCl2. This was due to the higher number of functional groups of COO- that were available in more concentrated CMC which could crosslink with CaCl2 to give higher gel content. Increasing the percentage of CaCl2 will increase the electrostatic attraction between anionic charges of polymer chains and multivalent cation (Ca2+) that leads to increase in ionic crosslinking of CMC. The swelling properties of CMC hydrogel showed that the optimum degree of swelling was 45.33 (g/g). The swelling capacity of the hydrogel in water decreased with the increase of the gel content of CMC hydrogel. This could be due to the increase in the degree of crosslinking of the CMC hydrogel.
format Article
author Che Nan, Nur Fitrah
Zainuddin, Norhazlin
Ahmad @ Ayob, Mansor
spellingShingle Che Nan, Nur Fitrah
Zainuddin, Norhazlin
Ahmad @ Ayob, Mansor
Preparation and swelling study of CMC hydrogel as potential superabsorbent
author_facet Che Nan, Nur Fitrah
Zainuddin, Norhazlin
Ahmad @ Ayob, Mansor
author_sort Che Nan, Nur Fitrah
title Preparation and swelling study of CMC hydrogel as potential superabsorbent
title_short Preparation and swelling study of CMC hydrogel as potential superabsorbent
title_full Preparation and swelling study of CMC hydrogel as potential superabsorbent
title_fullStr Preparation and swelling study of CMC hydrogel as potential superabsorbent
title_full_unstemmed Preparation and swelling study of CMC hydrogel as potential superabsorbent
title_sort preparation and swelling study of cmc hydrogel as potential superabsorbent
publisher Universiti Putra Malaysia Press
publishDate 2019
url http://psasir.upm.edu.my/id/eprint/67245/1/28%20JST-1018-2017.pdf
http://psasir.upm.edu.my/id/eprint/67245/
http://www.pertanika.upm.edu.my/Pertanika%20PAPERS/JST%20Vol.%2027%20(1)%20Jan.%202019/28%20JST-1018-2017.pdf
_version_ 1643838847008636928
score 13.211869

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