Preparation and swelling properties of superabsorbent nanocomposites based on natural guar gum and organo-vermiculite

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 and swelling properties of superabsorbent nanocomposites based on natural guar gum and organo-vermiculite
	Zhang JP(张俊平); Wang WB(王文波); Wang AQ(王爱勤)
刊名	Applied Clay Science
	2009
卷号	46 期号:1 页码:21-26
关键词	Guar gum Organo-vermiculite Superabsorbent Swelling Graft copolymerization Nanocomposites
ISSN号	0169-1317
通讯作者	王爱勤 aqwang@licp.cas.cn
中文摘要	Vermiculite (VMT) was modified with cetyl trimethylammonium bromide (CTAB). Superabsorbent nanocomposites were prepared by solution polymerization of natural guar gum (GG), partially neutralized acrylic acid (NaA) and organo-vermiculite (CTA+-VMT), ammonium persulfate (APS) as initiator and N,N′-methylene-bis-acrylamide (MBA) as crosslinking agent. FTIR spectra confirmed that NaA had been grafted onto GG and the \OH groups of CTA+-VMT participated in the polymerization reaction. The intercalated-VMT was exfoliated during polymerization and uniformly dispersed in the GG-g-PNaA matrix. Swelling tests show that CTA+-VMT improved swelling and swelling rate more remarkably than VMT, and the nanocomposite exhibited distinct kinetic swelling behavior in NaCl and CaCl2 solution. Organo-VMT improved the gel strength of the nanocomposite compared to VMT, and the maximum storage modulus of the nanocomposite reached 658 Pa (γ=0.5%, ω=100 rad/s).
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:000270161300004
公开日期	2012-09-02
内容类型	期刊论文
源URL	[http://210.77.64.217/handle/362003/157]
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	Zhang JP,Wang WB,Wang AQ. Preparation and swelling properties of superabsorbent nanocomposites based on natural guar gum and organo-vermiculite[J]. Applied Clay Science,2009,46(1):21-26.
APA	张俊平,王文波,&王爱勤.(2009).Preparation and swelling properties of superabsorbent nanocomposites based on natural guar gum and organo-vermiculite.Applied Clay Science,46(1),21-26.
MLA	张俊平,et al."Preparation and swelling properties of superabsorbent nanocomposites based on natural guar gum and organo-vermiculite".Applied Clay Science 46.1(2009):21-26.