Synthesis, swelling behaviors and slow-release characteristics of guar gum-g-poly(sodium acrylate)/sodium humate superabsorbent

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

	Synthesis, swelling behaviors and slow-release characteristics of guar gum-g-poly(sodium acrylate)/sodium humate superabsorbent
	Wang AQ(王爱勤); Wang WB(王文波)
刊名	Journal of Applied Polymer Science
	2009
卷号	112 期号:4 页码:2102-2111
关键词	graft copolymers high performance polymers hydrophilic polymers welling synthesis
ISSN号	0021-8995
通讯作者	王爱勤 aqwang@licp.cas.cn
中文摘要	Superabsorbents used in agricultural and ecological projects with low-cost, slow-release fertilizers and environmentally friendly characteristics have been extensively studied. The use of a natural polymer as the matrix and then further polymerization with some functional material has become the preferred method. In this work, with natural guar gum (GG), partially neutralized acrylic acid, and sodium humate (SH) as the raw materials, ammonium persulfate as the initiator, and N,N0-methylenebisacrylamide (MBA) as the crosslinker, GG-gpoly(sodium acrylate) (PNaA)/SH superabsorbents were synthesized through a solution polymerization reaction and were characterized with Fourier transform infrared spectroscopy, scanning electron microscopy, and thermogravimetric analysis. The effects of the SH content and MBA concentration on the water absorbency were investigated. The results showed that the introduction of SH into the GG-g-PNaA system could improve the water absorbency, swelling rate, pH-resistant property, and reswelling capability, and the superabsorbent containing 15 wt % SH had the highest water absorbency of 532 g/g of sample in distilled water and 62 g/g of sample in a 0.9 wt % NaCl solution. The slow release in water and water retention in sandy soil tests revealed that the superabsorbent could act as a fertilizer as well as an effective water-saving material for agricultural applications.
学科主题	功能高分子
收录类别	SCI
资助信息	中科院西部行动项目(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/362003/158]
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,Wang WB. Synthesis, swelling behaviors and slow-release characteristics of guar gum-g-poly(sodium acrylate)/sodium humate superabsorbent[J]. Journal of Applied Polymer Science,2009,112(4):2102-2111.
APA	王爱勤,&王文波.(2009).Synthesis, swelling behaviors and slow-release characteristics of guar gum-g-poly(sodium acrylate)/sodium humate superabsorbent.Journal of Applied Polymer Science,112(4),2102-2111.
MLA	王爱勤,et al."Synthesis, swelling behaviors and slow-release characteristics of guar gum-g-poly(sodium acrylate)/sodium humate superabsorbent".Journal of Applied Polymer Science 112.4(2009):2102-2111.