Study on superabsorbent composite. XX. Effects of cation-exchanged montmorillonite on swelling properties of superabsorbent composite containing 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

	Study on superabsorbent composite. XX. Effects of cation-exchanged montmorillonite on swelling properties of superabsorbent composite containing sodium humate
	Wang AQ(王爱勤); Zheng YA(郑易安)
刊名	Polymer Composites
	2009
卷号	30 期号:8 页码:1138-1145
ISSN号	0272-8397
通讯作者	王爱勤 aqwang@licp.cas.cn
中文摘要	In this work, the effects of different cation-exchanged montmorillonite on water absorbency of poly(acrylic acid-co-acrylamide)/montmorillonite/sodium humate (PAA-AM/MMT/SH) superabsorbent composite were systematically investigated under the same preparation conditions. The superabsorbents doped with different cation-exchanged montmorillonite were characterized by Fourier-transform infrared spectroscopy, X-ray diffraction, and scanning electron microscopy technologies. Swelling behaviors of developing superabsorbent composite in various cationic saline solutions (NaCl, CaCl2, and FeCl3) were also investigated. The water absorbencies of superabsorbent composite with 20 wt% MMT and 30 wt% SH are 638, 723, 682, and 363 g g-1 in distilled water for incorporating natural Na?-MMT, Li?-exchanged MMT, Ca2?-exchanged MMT, and Al3?-exchanged MMT, respectively. The results showed that the cation-exchange process had some obvious influences on final water absorbency of superabsorbent composite. NaCl, CaCl2, and FeCl3 solutions did not alter the swelling characteristics of the superabsorbent materials at a concentration of less than 0.01 mM, however, a concentration of greater than 0.1 mM caused a collapse in the swelling curves. The excellent swelling-reswelling-swelling behavior and lower swelling rate testified that Al3?-exchanged MMT can act as an assistant crosslinker in the polymeric network.
学科主题	功能高分子
收录类别	SCI
资助信息	科技部863项目(2006AA03Z0454,2006AA100215)
语种	英语
WOS记录号	WOS:000268306600016
公开日期	2012-09-02
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/146]
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	Wang AQ,Zheng YA. Study on superabsorbent composite. XX. Effects of cation-exchanged montmorillonite on swelling properties of superabsorbent composite containing sodium humate[J]. Polymer Composites,2009,30(8):1138-1145.
APA	王爱勤,&郑易安.(2009).Study on superabsorbent composite. XX. Effects of cation-exchanged montmorillonite on swelling properties of superabsorbent composite containing sodium humate.Polymer Composites,30(8),1138-1145.
MLA	王爱勤,et al."Study on superabsorbent composite. XX. Effects of cation-exchanged montmorillonite on swelling properties of superabsorbent composite containing sodium humate".Polymer Composites 30.8(2009):1138-1145.