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	Study on superabsorbent composite xvi. synthesis, characterization and swelling behaviors of poly(sodium acrylate)/vermiculite superabsorbent composites
	Zheng, Yian; Li, Ping; Zhang, Junping; Wang, Aiqin
刊名	European polymer journal
	2007-05-01
卷号	43期号:5页码:1691-1698
关键词	Superabsorbent composite Vermiculite Water absorbency Swelling behavior
ISSN号	0014-3057
DOI	10.1016/j.eurpolymj.2007.02.023
通讯作者	Wang, aiqin(aqwang@lzb.ac.cn)
英文摘要	A series of superabsorbent composites were synthesized by copolymerization reaction of partially neutralized acrylic acid on unexpanded vermiculite (uvmt) micropowder using n,n'-methylenebisacrylamide (mba) as a crosslinker and ammonium persulfate (aps) as an initiator in aqueous solution. and the samples were further characterized by means of fourier-transform spectroscopy (ftir), scanning electron microscopy (sem), transmission electron microscopy (tem), x-ray diffraction (xrd) and thermogravimetric analysis (tga). the effects of vermiculite content on water absorbency were studied. swelling behaviors of the superabsorbent composites in various cationic salt solutions (nacl, cacl2, and fecl3) anionic salt solutions (nacl, na2so4 and na3po4) and ph solutions were also systematically investigated. results obtained showed that the equilibrium water absorbency increased with increasing uvmt content and the concentration of 20 wt.% clay gave the best absorption (1232 g/g in distilled water and 89 g/g in 0.9 wt.% nacl). data achieved also suggested that the water absorbency in various saline solutions decreased with an increase in the ionic strengths of these solutions. and it was found that at a higher ionic strength (>1 x 10(-3) m), the water absorbency in monovalent cationic solutions was higher than those in multivalent cationic solutions. however, at the same ionic strength (>1 x 10-3 m)7 the effect of three anionic salt solutions on the swelling has the following order: nacl < na2so4 < na3po4. (c) 2007 elsevier ltd. all rights reserved.
WOS关键词	POLYMERIC MATERIALS ; WATER ABSORBENCY ; NANOCOMPOSITE SUPERABSORBENTS ; ELECTRIC-FIELDS ; ACRYLATE) ; ATTAPULGITE ; HYDROGELS ; GEL
WOS研究方向	Polymer Science
WOS类目	Polymer Science
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000247040600010
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2381545
专题	中国科学院大学
通讯作者	Wang, Aiqin
作者单位	1.Chinese Acad Sci, Lanzhou Inst Chem Phys, Ctr Ecomat & Green Chem, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Yian,Li, Ping,Zhang, Junping,et al. Study on superabsorbent composite xvi. synthesis, characterization and swelling behaviors of poly(sodium acrylate)/vermiculite superabsorbent composites[J]. European polymer journal,2007,43(5):1691-1698.
APA	Zheng, Yian,Li, Ping,Zhang, Junping,&Wang, Aiqin.(2007).Study on superabsorbent composite xvi. synthesis, characterization and swelling behaviors of poly(sodium acrylate)/vermiculite superabsorbent composites.European polymer journal,43(5),1691-1698.
MLA	Zheng, Yian,et al."Study on superabsorbent composite xvi. synthesis, characterization and swelling behaviors of poly(sodium acrylate)/vermiculite superabsorbent composites".European polymer journal 43.5(2007):1691-1698.

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