干旱区生态环境知识资源中心(Arid): 十六烷基三甲基溴化铵改性蒙脱土的制备及其保水性能

Arid

	十六烷基三甲基溴化铵改性蒙脱土的制备及其保水性能
其他题名	Preparation and water retention characteristics of modified montmorillonite with hexadecyl trimethyl ammonium bromide
	张增志; 渠永平; 马丹丹; 杜红梅
来源期刊	功能材料
ISSN	1001-9731
出版年	2015
卷号	46 期号:7 页码:7067-7071
中文摘要	针对荒漠化地区沙土水分涵养难的问题,用十六烷基三甲基溴化铵(hexadecyl trimethyl ammonium bromide, CTMAB)插层改性制备有机蒙脱土保水材料。研究了材料在模拟沙漠气候条件下的保水性能,并采用X射线衍射分析、傅里叶红外光谱分析、热重分析、扫描电子显微镜对材料进行分析和表征。结果表明,CTMAB插层进入蒙脱土层间,(001)面层间距由1.25104 nm增大到2.09212 nm,同时该材料保水性能良好,CTMAB亲水端进入蒙脱土层间,将松散的蒙脱土颗粒胶结起来,其憎水端相互连接形成憎水网络,从而在地表形成透气保水的固结层来有效降低水分蒸发。模拟沙漠气候条件下的植草试验表明,施用该材料后草籽发芽率从对照组的8%提高到48%。
英文摘要	This study was conducted to solve the problem of sand-fixation and moisture retention in desertification region, the montmorillonite was modified by hexadecyl trimethyl ammonium bromide (CTMAB). The water retention property was studied in an artificial climate box with simulating desert climate and the materials were analyzed and characterized by means of SEM, FT-IR, XRD and TGA measurements. The results showed that CTMAB had intercalated into the interlayers of montmorillonite and d_((001)) layer space increased from 1.25104 to 2.09212 nm. The organic montmorillonite had excellent water retention property. The clay particles were cemented through the interactions of CTMAB, and the strength and stability of the bonding layer significantly increased. The hydrophobic ends of CTMAB connected to form a hydrophobic network to inhibit the water evaporation. Grass-planting experiment showed that the germination rate of grass seed with organic montmorillonite was significantly improved to 48%, while the rate for control group was only 8%.
中文关键词	十六烷基三甲基溴化铵 ; 蒙脱土 ; 改性 ; 制备 ; 保水性能
英文关键词	hexadecyl trimethyl ammonium bromide montmorillonite modification preparation water retention properties
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENGINEERING INDUSTRIAL
WOS研究方向	Engineering
CSCD记录号	CSCD:5404081
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/232839
作者单位	中国矿业大学(北京)生态功能材料研究所, 北京 100083, 中国
推荐引用方式 GB/T 7714	张增志,渠永平,马丹丹,等. 十六烷基三甲基溴化铵改性蒙脱土的制备及其保水性能[J],2015,46(7):7067-7071.
APA	张增志,渠永平,马丹丹,&杜红梅.(2015).十六烷基三甲基溴化铵改性蒙脱土的制备及其保水性能.功能材料,46(7),7067-7071.
MLA	张增志,et al."十六烷基三甲基溴化铵改性蒙脱土的制备及其保水性能".功能材料 46.7(2015):7067-7071.