Effect of number of grindings of attapulgite on enhanced swelling properties of the superabsorbent nanocomposites

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

	Effect of number of grindings of attapulgite on enhanced swelling properties of the superabsorbent nanocomposites
	Liu Y(刘毅)1,2 ; Chen H(陈红)1,2; Zhang JP(张俊平)1,3 ; Wang AQ(王爱勤)1,3 ; Wang AQ(王爱勤)
刊名	Journal of Composite Materials
	2013
卷号	47 期号:8 页码:969-978
关键词	Superabsorbent nanocomposite attapulgite grinding treatment sodium carboxymethyl cellulose swelling behavior
ISSN号	0021-9983
通讯作者	王爱勤
英文摘要	The incorporation of clay has become a preferred method for superabsorbent composite preparation because of its great influence on the swelling properties. The mechanical chemistry shows that grinding treatment could change the physical and chemical properties of clay. Therefore, in this article, the grinding treated attapulgite were used for preparation of sodium carboxymethyl cellulose-g-poly(acrylic acid)/attapulgite superabsorbent nanocomposites by the solution polymerization using ammonium persulfate as an initiator and N,N'-methylenebisacrylamide as a crosslinker. The effects of number of grindings on the specific surface area and other characteristics of attapulgite, and the swelling ability, swelling kinetics, saline and pH sensitivity of the superabsorbent nanocomposites were systematically investigated. The results indicated that the increase in number of grindings could decrease the length of single crystals and dissociate part of crystal aggregates of attapulgite, which affected the dispersion of attapulgite in the polymeric matrix, thus leading to change in swelling behaviors of the superabsorbent nanocomposites. The swelling tests showed that the superabsorbent nanocomposites with attapulgite grinded for 6 times were the best in the reswelling abilities, initial swelling rate, saline and pH sensitivity.
学科主题	功能复合材料
收录类别	SCI
资助信息	the Science and Technology Support Project of Jiangsu Provincial Sci. & Tech. Department (No. BY2010012);the Foundation of Key Laboratory for Palygorskite Science and Applied Technology of Jiangsu Province (No. HPK200901)
语种	英语
WOS记录号	WOS:000316917300001
公开日期	2013-12-05
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/4532]
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
通讯作者	Wang AQ(王爱勤)
作者单位	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, Ctr Xuyi Attapulgite Appl Technol, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Univ, Lanzhou 730000, Peoples R China 3.Huaiyin Inst Technol, Key Lab Attapulgite Sci & Appl Technol Jiangsu Pr, Huaian 223003, Peoples R China
推荐引用方式 GB/T 7714	Liu Y,Chen H,Zhang JP,et al. Effect of number of grindings of attapulgite on enhanced swelling properties of the superabsorbent nanocomposites[J]. Journal of Composite Materials,2013,47(8):969-978.
APA	Liu Y,Chen H,Zhang JP,Wang AQ,&王爱勤.(2013).Effect of number of grindings of attapulgite on enhanced swelling properties of the superabsorbent nanocomposites.Journal of Composite Materials,47(8),969-978.
MLA	Liu Y,et al."Effect of number of grindings of attapulgite on enhanced swelling properties of the superabsorbent nanocomposites".Journal of Composite Materials 47.8(2013):969-978.