Preparation, characterization and swelling behaviors of a novel multifunctional superabsorbent composite based on Ca-montmorillonite and sodium humate

CORC > 兰州化学物理研究所 > 中国科学院兰州化学物理研究所 > 环境材料与生态化学研究发展中心

	Preparation, characterization and swelling behaviors of a novel multifunctional superabsorbent composite based on Ca-montmorillonite and sodium humate
	Zheng YA(郑易安); Wang AQ(王爱勤)
刊名	e-polymers
	2007
卷号	127 页码:1-14
ISSN号	1618-7229
通讯作者	王爱勤 aqwang@licp.cas.cn
中文摘要	In this work, a novel water-managing superabsorbent composite was prepared by graft copolymerization reaction using acrylic acid (AA) and acrylamide (AM) as the monomers, calcium montmorillonite (Ca-MMT) as an inorganic component and sodium humate (SH) as fertilizers, and well characterized by means of Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and thermogravimetric analysis (TGA). The effects of the reaction temperature, neutralization degree of AA, amount of crosslinker, initiator, Ca-MMT and SH on water absorbencies were systematically investigated. The water absorbencies of the superabsorbent composite synthesized under optimal conditions with a Ca-MMT content of 20 wt% and an SH content of 30 wt% are 615 g g-1 and 45 g g-1 in distilled water and in 0.9 wt% NaCl solution, respectively. The swelling behaviors of the superabsorbent composite in various cationic salt solutions (NaCl, CaCl2 and FeCl3) were also investigated and it was found that at the same saline concentration (> 0.1 mmol L-1), the effect of three cationic salt solutions on the swelling capability has the following order: NaCl < CaCl2 < FeCl3. Here, it is worthy to point out that the water absorbency and swelling behaviors of the developed composite were improved by introducing simultaneously Ca-MMT and SH into PAA-AM network in comparison with that of incorporated single with Ca-MMT or SH.
学科主题	功能高分子
收录类别	SCI
资助信息	国家863计划项目(2006AA100215,2006AA03Z0454);中国科学院“西部行动”计划(KGCX2-YW-501)
语种	英语
公开日期	2012-09-02
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/215]
专题	兰州化学物理研究所_环境材料与生态化学研究发展中心
推荐引用方式 GB/T 7714	Zheng YA,Wang AQ. Preparation, characterization and swelling behaviors of a novel multifunctional superabsorbent composite based on Ca-montmorillonite and sodium humate[J]. e-polymers,2007,127:1-14.
APA	郑易安,&王爱勤.(2007).Preparation, characterization and swelling behaviors of a novel multifunctional superabsorbent composite based on Ca-montmorillonite and sodium humate.e-polymers,127,1-14.
MLA	郑易安,et al."Preparation, characterization and swelling behaviors of a novel multifunctional superabsorbent composite based on Ca-montmorillonite and sodium humate".e-polymers 127(2007):1-14.