Effects of Plasticiser on the Morphology and Swelling Properties of Cellulose-based Hydrogels Derived from Wastepaper

IF 1.2 Q3 MULTIDISCIPLINARY SCIENCES

Journal of Physical Science Pub Date : 2023-12-06 DOI:10.21315/jps2023.34.3.4

Bebe Norlita Mohamed, Suk-Fun Chin, M. E. Wasli

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Abstract

Cellulose was successfully extracted from wastepaper with a pre-treatment using sodium hydroxide (NaOH) and hydrochloric acid (HCl). The cellulose was then used to fabricate two types of hydrogels: cellulose/carboxymethyl cellulose (CMC)/polyvinyl alcohol (PVA) and cellulose/CMC/glycerol. Epichlorohydrin, an ECH solution was used as a cross-linker for the fabrication of both types of hydrogels. NaOH/urea/ultrapure water (NU) solutions were used to dissolve all the materials needed for the formation of hydrogels. The attenuated total reflectance-Fourier transform infrared (ATR-FTIR) showed the presence of hydroxyl group (O-H), hydrocarbon group (C-H) and carbonyl group (C=O) stretching. Scanning electron microscope (SEM) showed different porosities for both types of hydrogels, while the equilibrium swelling, swellingeq of cellulose/CMC/ PVA hydrogels were better compared to the cellulose/CMC/glycerol hydrogels. The highest swellingeq was found for the cellulose/CMC/PVA hydrogel (3/3/4 ratio), CCP334 with 6.33 g/g, while the lowest swellingeq (g/g) was obtained from the cellulose/CMC/ glycerol hydrogel (3/2/5 ratio), CCG325 with 1.49 g/g.

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增塑剂对从废纸中提取的纤维素基水凝胶的形态和膨胀特性的影响

通过使用氢氧化钠（NaOH）和盐酸（HCl）进行预处理，成功地从废纸中提取出了纤维素。纤维素随后被用于制造两种水凝胶：纤维素/羧甲基纤维素（CMC）/聚乙烯醇（PVA）和纤维素/CMC/甘油。环氧氯丙烷（ECH 溶液）被用作两种水凝胶的交联剂。NaOH/ 尿素/超纯水（NU）溶液用于溶解形成水凝胶所需的所有材料。衰减全反射-傅立叶变换红外光谱（ATR-FTIR）显示存在羟基（O-H）、烃基（C-H）和羰基（C=O）伸展。扫描电子显微镜（SEM）显示两种水凝胶的孔隙率不同，而纤维素/CMC/PVA 水凝胶的平衡溶胀度、溶胀eq 与纤维素/CMC/甘油水凝胶相比更好。纤维素/CMC/PVA 水凝胶（3/3/4 比率）CCP334 的膨胀系数最高，为 6.33 克/克，而纤维素/CMC/甘油水凝胶（3/2/5 比率）CCG325 的膨胀系数（克/克）最低，为 1.49 克/克。

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来源期刊

Journal of Physical Science Physics and Astronomy-Physics and Astronomy (all)

CiteScore

1.70

自引率

0.00%

发文量

期刊介绍： The aim of the journal is to disseminate latest scientific ideas and findings in the field of physical sciences among scientists in Malaysia and international regions. This journal is devoted to the publication of articles dealing with research works in Chemistry, Physics and Engineering. Review articles will also be considered. Manuscripts must be of scientific value and will be submitted to independent referees for review. Contributions must be written in English and must not have been published elsewhere.